[DeTomaso] Sodium valves

j g notstock at yahoo.com
Thu Feb 19 14:16:22 EST 2015


yup and in stainless, and inconel , the stainless valves actually are better at heat transfer than the titanium are ,jg 
      From: Scott Bell <scott at saccrestorations.net>
 To: detomaso at poca.com 
 Sent: Thursday, February 19, 2015 1:09 PM
 Subject: Re: [DeTomaso] Sodium valves
   
Sodium filled valves also come in titanium...

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Sean Korb
Sent: Thursday, February 19, 2015 8:29 AM
To: j g
Cc: &#39, Ken Green&#39, ; B. SEIB; &#39, DetomasoList&#39, 
Subject: Re: [DeTomaso] Sodium valves

I'm fascinated by sodium cooled valves, but I think titanium is a more
popular option in this crowd.  There were some made available for racing
and while they do not have a cooling technology they do endure more heat
than a stainless valve.  They come up on ebay or a swap meet occasionally.

I just have a street engine so I'm not concerned... just fascinated.

sean

On Thu, Feb 19, 2015 at 10:01 AM, j g via DeTomaso <detomaso at poca.com>
wrote:

>    I take no credit for the content below just passing along published
>    public domain material.
>
> LSJ[[1]edit]
>
>    Ecotec LSJ engine in a 2006 [2]Saturn Ion Red Line
>    The LSJ is a supercharged version of the LK9 Ecotec 2.0 La 1,998 cc
>    (121.9 cu in)a with an [3]Eaton M62 [4]Roots-type supercharger and
>    air-to-liquid [5]intercooler. The LSJ shares many of its components
>    with the LK9 such as: piston cooling jets, oil cooler, pistons,
>    connecting rods, crankshaft, oil pan, sodium-filled exhaust valves and
>    cylinder head.^[6][8] It is rated at 205 hp
>
> 2.0 LNF[[7]edit]
>
>    Ecotec LNF in a [8]Pontiac Solstice
>    A turbocharged [9]direct injected (redubbed Spark Ignition Direct
>    Injection) Ecotec was introduced in the 2007 [10]Pontiac Solstice GXP
>    and [11]Saturn Sky Red Line. In these applications, the engine is
>    mounted longitudinally. Displacement is 2.0 La1,998 cc (121.9 cu
>    in)awith a square 86 millimetres (3.4 in) bore and stroke. Compression
>    is 9.2:1 and maximum boost is 1.4 bar (20.0 psi), delivering 260 hp
>    (190 kW) at 5300 rpm and 260 lbA.ft (350 NA.m) of torque from 2500 to
>    5250 rpm. Engine redline is at 6300 rpm and premium fuel is
>    recommended. The sodium filled exhaust valves were based on technology
>    developed for the Corvette V8 powertrains. The sodium fuses and becomes
>    a liquid at idle, which improves conductivity and draws heat away from
>    the valve face and valve guide towards the stem to be cooled by the
>    engine oil circulating in this area.[12]sodium-filled stainless steel
>    [13]Inconel exhaust [14]valves
>
>
> LDK[[15]edit]
>
>    An updated variant of the LNF (also with 9.2:1 compression ratio). This
>    engine is also known as A20NFT and A20NHT by GM Powertrain Europe.
>    This engine is used in: all have [16]sodium-filled stainless steel
>    [17]Inconel exhaust [18]valves
>    Year(s) Model Power Torque
>    2009 [19]Opel Insignia 162 [20]kW (220 [21]PS; 217 [22]hp) @ 5300 rpm
>    350 NA.m (258 lbA.ft) @ 2500 rpm
>    2009a2010 [23]Buick Regal Turbo 162 [24]kW (220 [25]PS; 217 [26]hp) @
>    5300 rpm 350 NA.m (258 lbA.ft) @ 2500 rpm
>    2010a2013 [27]Buick Regal GS (Chinese Market) 162 [28]kW (220 [29]PS;
>    217 [30]hp) @ 5300 rpm 350 NA.m (258 lbA.ft) @ 2500 rpm
>    2009a2010 [31]Buick Regal Turbo (Hirsch Performance) 192 [32]kW (261
>    [33]PS; 257 [34]hp) @ 5400 rpm 400 NA.m (295 lbA.ft) @ 3000a4000 rpm
>    2010a2013 [35]Buick Regal GS (Hirsch Performance) 192 kW (261 PS; 257
>    hp) @ 5400 rpm 400 NA.m (300 lbA.ft) @ 3000a4000 rpm
>    2010a2012 [36]Saab 9-5 162 kW (220 PS; 217 hp) @ 5300 rpm 350 NA.m (258
>    lbA.ft) @ 2500 rpm
>    2011, 2013a [37]Saab 9-3 ([38]NEVS) 162 kW (220 PS; 217 hp) @ 5300 rpm
>    350 NA.m (258 lbA.ft) @ 2500 rpm
>    2011 [39]Opel Insignia 4x4 184 kW (250 PS; 247 hp) @ 5300 rpm 400 NA.m
>    (300 lbA.ft) @ 2400a3600 rpm
>    2012 [40]Opel Astra J OPC 206 kW (280 PS; 276 hp) @ 5500 rpm 400 NA.m
>    (300 lbA.ft) @ 2500a4500 rpm
>    2014a [41]Buick Regal GS (Chinese Market) 187 kW (254 PS; 251 hp) @
>    5300 rpm 350 NA.m (260 lbA.ft) @ 2000a5000 rpm
>    2014a [42]Buick Regal GS (Hirsch Performance) 205 kW (279 PS; 275 hp) @
>    5400 rpm 410 NA.m (300 lbA.ft) @ 3000a4000 rpm
>
>
> 2.0[[43]edit]
>
> LTG[[44]edit]
>
>    A 2.0 L (1998 cc) [45]turbocharged direct injection version of the gen
>    III Ecotec will be available in 2013 [46]Cadillac ATS and [47]Chevrolet
>    Malibu.This engine is also available in [48]Cadillac XTS in Chinese
>    market. Bore and stroke are both 86.0 millimetres (3.39 in),
>    compression is 9.5:1. The engine uses [49]twin-scroll turbocharger with
>    electronically controlled wastegate/bypass valve, air-to-air
>    intercooler, stainless steel dual-scroll (1a4, 2a3) exhaust manifold
>    designed to withstand 980 ADEGC (1,800 ADEGF) turbine temperature, and
>    [50]rotacast aluminum alloy (A356T6) cylinder head with sodium-filled
>    exhaust valves
>
>
>    ford stuff
>    ford FE "The intake and exhaust valves are larger than those found on
>    the 427 production engine". The exhaust valves feature a sodium filled
>    hollow stem for better heat conduction
>
>    5.0-liter V-8: 435 hp, 400 lb-ft
>    Fordas Coyote V-8 carries over as well, although it receives more
>    substantial changes. Mustang engineers used the [51]low-volume Boss
>    302as V-8, a [52]glorious-sounding 444-hp powerhouse, as its
>    performance bogey. Unfortunately, the Boss engine incorporated some
>    expensive manufacturing tricks that Ford couldnat possibly use in a
>    mass-produced engine, like hollow intake valves, sodium-filled exhaust
>    valves, and CNC-ported heads, so it had to look elsewhere to approach
>    Boss power levels.
>
>
>    The 1963 Indy pushrod engine produced 375 BHP at 7200 RPM from 255
>    cubic inches
>    Ford powered Lotus cars were prepared for Indy in 1963, to be driven by
>    Dan Gurney and Jimmy Clark. The high performance 260 used in the Cobra
>    was the starting point, dubbed the Stage 0 engine. Stage 1 involved
>    revised and enlarged intake and exhaust ports, and 12.5:1 compression
>    through the used of forged pop-up pistons. The special intake manifold
>    carried four 46mm downdraft Webers carburetors. Larger valves,
>    hollow-stemmed intakes and sodium-filled exhausts were fitted to the
>    heads, along with high silicon content aluminum alloy retainers.
>
>
>
>    [53]https://books.google.com/books?id=MaTmIcR2atAC&pg=PA74&lpg=PA74&dq=
>    ford+engines+sodium+filled+exhaust+valves&source=bl&ots=RRBKRsUD5Z&sig=
>    gPx7pk_Kb-FH5ufMokP2IXgNQBw&hl=en&sa=X&ei=6vjlVKj4JYqryQTJ14EI&ved=0CDs
>    Q6AEwBjgK#v=onepage&q=ford%20engines%20sodium%20filled%20exhaust%20valv
>    es&f=false
>
>      __________________________________________________________________
>
>    From: B. SEIB <oldwheel at shaw.ca>
>    To: 'j g' <notstock at yahoo.com>
>    Sent: Wednesday, February 18, 2015 6:27 PM
>    Subject: RE: [DeTomaso] Sodium valves
>    I wonder if the Buick GN had sodium ex valves then too?
>    Do you know if any of Ford's turbo or supercharged engines use sodium
>    filled valves jg?
>    Barry
>      __________________________________________________________________
>
>    From: j g [mailto:notstock at yahoo.com]
>    Sent: February-18-15 5:25 PM
>    To: B. SEIB; 'Ken Green'; 'Charles De Francisco'; 'DetomasoList'
>    Subject: Re: [DeTomaso] Sodium valves
>    sodium filled exhaust valves were also used on the corvair turbo
>    charged engines  from 62 on to the end of the 68
>    all 911 engines up to the 964  have sodium filled exhaust valves .
>    lt-4 zo6 had sodium filled exhaust valves . all turbo and supercharged
>    chevrolet engines have had sodium filled exhaust valves from the
>    factory. ls7 included
>    On the exhaust side, sodium-filling is the best way to increase the
>    head cooling capacity of a hollow exhaust valve. If stock diameter
>    steel valves are required, but a valve weight is not mandated, going to
>    a hollow intake and sodium-filled exhaust is certainly a major
>    advantage. better cooling of the valve and the guide as well as lighter
>    than other types except titanium .
>    Stainless steel (for street performance) has much better durability
>    characteristics than titanium, and the street guys wonat usually see
>    the real benefits of titanium. In racing, use titanium when you want to
>    lose weighta|and spend a lot of money. sodium filled exhaust valves
>    were an off shoot spin off from the aircraft engines way back .
>
>    jg
>      __________________________________________________________________
>
>    From: B. SEIB <oldwheel at shaw.ca>
>    To: 'Ken Green' <kenn_green at yahoo.com>; 'Charles De Francisco'
>    <drfortinbras at gmail.com>; 'DetomasoList' <detomaso at poca.com>
>    Sent: Wednesday, February 18, 2015 4:12 PM
>    Subject: Re: [DeTomaso] Sodium valves
>      Yes, that sounds reasonable. I think it was for use in aircraft
>    engines
>      with some form of supercharging that they were originally developed.
>    I
>      just didn't realize they were back in style!
>      Barry
>        __________________________________________________________________
>      From: Ken Green [mailto:[54]kenn_green at yahoo.com]
>      Sent: February-18-15 4:07 PM
>      To: B. SEIB; 'Charles De Francisco'; 'DetomasoList'
>      Subject: Re: [DeTomaso] Sodium valves
>      What I read said the stock LS7 has sodium filled exhaust valves.
>      I would guess that a turbo charged production engine might have them
>    to
>      handle the heat?
>      Ken
>        __________________________________________________________________
>      From: B. SEIB <[55]oldwheel at shaw.ca>
>      To: 'Charles De Francisco' <[56]drfortinbras at gmail.com>; 'Ken Green'
>      <[57]kenn_green at yahoo.com>; 'DetomasoList' <[58]detomaso at poca.com>
>      Sent: Wednesday, February 18, 2015 2:00 PM
>      Subject: Re: [DeTomaso] Sodium valves
>          Thanks Charles
>        I wouldn't be surprised if sodium valves were used in Nascar hemis
>    or
>        Boss 429 engines too. I just don't recall any production engines
>    with
>        them, but I could be wrong.....
>        Ken Green says the LS7 uses them !
>        I'm surprised at that. I wonder if that's in the GM engine as
>      produced
>        or an aftermarket thing?
>        Ken, do you know?
>        Barry
>
>    __________________________________________________________________
>          From: Charles De Francisco [mailto:[1][59]drfortinbras at gmail.com]
>        Sent: February-18-15 3:41 PM
>        To: B. SEIB
>        Subject: Re: [DeTomaso] Sodium valves
>        Hi Barry your info was almost rite on.  Ford did offer the sodium
>        valves on the 427 engines for thr Cobras used in their race program
>        There was a issue with the nos valves as the sodium corroded the
>      inside
>        causing them to come apart as they were drilled to make the stem
>        hollow..the story I heard was the sodium was to provide cooling of
>      the
>        valve stem in endurance racing...we used some
>        In drag race engines as they were somewhat lighter..a much better
>    set
>        up would be manley stainless valves..?..Pete Coleman
>        At manley in Lakewood n.j. 732-905-3366 would be able to help you
>    on
>        this issue.
>        On Wednesday, February 18, 2015, B. SEIB
>    <[1][2][60]oldwheel at shaw.ca>
>      wrote:
>          Hi Robert
>          Sodium valves were a feature in the 375HP version of Corvette 327
>          engines
>          with fuel injection. I don't recall sodium valves being used in
>          other US
>          standard production engines. Maybe some other exotic engines did.
>          Later
>          valve steels and technology made the risks and expense of sodium
>          filled
>          valves obsolete in HP engines. The idea originated in aircraft
>          piston
>          engines back around WWII, I think, and was related to trying to
>      cool
>          exhaust
>          valves under high stress loads.
>          The 1971 Cleveland 351-4V engines in Panteras (and Mustangs,etc.)
>          had high
>          compression closed chamber (quench) heads, single point
>          distributors, small
>          square bore 600cfm 4300A carbs and 2 bolt mains. The Boss 351 was
>          the only
>          351C to get 4 bolt mains, dual point distributor and the large
>          spreadbore
>          Motorcraft 4300D carb in 1971 along with high compression CC
>    heads.
>          Some people have said that some 1971 4V engines found there way
>      into
>          very
>          early 72 Panteras, but probably only in early January 72 cars.
>    The
>          1972
>          Cobra-jet engines would have entered production in Sept of 1971
>    and
>          by the
>          end of 1971, DeTomaso was likely to have used their engine stock
>    on
>          hand and
>          have received new Cobra-jet engines from Ford. I understand
>      DeTomaso
>          was
>          generally receiving engines only about a month or so after they
>      were
>          produced in the US plant.
>          1972 Panteras came with Cobra-jet engines that had open chamber
>          (lower
>          compression) 4V heads but with 4 bolt mains, dual point
>    distributor
>          and
>          large spreadbore Motorcraft 4300D carb. This was the strange
>    result
>          of Ford
>          trying to recover some of the power lost to stricter emission
>          standards for
>          1972. The compression had to come down for unleaded gas and Ford
>          upped the
>          RPM to try to get some oomph back. They retarded the cam timing
>    and
>          hopped
>          it up a bit to get the power at higher revs, thus the dual point
>      and
>          4 bolt
>          mains.
>          1973 and 74 went downhill from there, with increasing emissions
>    and
>          lower
>          compression.
>          So...the best heads were in 1971, but everything else was better
>    in
>          1972.
>          Unless you have a 1971 BOSS 351 engine, which never came in a
>          production US
>          market Pantera. Pity that.
>          Barry
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>      1. mailto:[67]drfortinbras at gmail.com
>      2. mailto:[68]oldwheel at shaw.ca
>      3. mailto:[69]DeTomaso at poca.com
>      4. [70]http://poca.com/mailman/listinfo/detomaso_poca.com
>      5. mailto:[71]oldwheel at shaw.ca
>      6. [72]http://poca.com/mailman/listinfo/detomaso_poca.com
>      7. mailto:[73]DeTomaso at poca.com
>      8. [74]http://poca.com/mailman/listinfo/detomaso_poca.com
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> References
>
>    Visible links
>    1.
> http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit§ion=4
>    2. http://en.wikipedia.org/wiki/Saturn_Ion
>    3. http://en.wikipedia.org/wiki/Eaton_Corporation
>    4. http://en.wikipedia.org/wiki/Roots-type_supercharger
>    5. http://en.wikipedia.org/wiki/Intercooler
>    6. http://en.wikipedia.org/wiki/GM_Ecotec_engine#cite_note-8
>    7.
> http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit§ion=10
>    8. http://en.wikipedia.org/wiki/Pontiac_Solstice
>    9. http://en.wikipedia.org/wiki/Gasoline_direct_injection
>  10. http://en.wikipedia.org/wiki/Pontiac_Solstice
>  11. http://en.wikipedia.org/wiki/Saturn_Sky
>  12. http://en.wikipedia.org/wiki/Sodium
>  13. http://en.wikipedia.org/wiki/Inconel
>  14. http://en.wikipedia.org/wiki/Poppet_valve
>  15.
> http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit§ion=11
>  16. http://en.wikipedia.org/wiki/Sodium
>  17. http://en.wikipedia.org/wiki/Inconel
>  18. http://en.wikipedia.org/wiki/Poppet_valve
>  19. http://en.wikipedia.org/wiki/Opel_Insignia
>  20. http://en.wikipedia.org/wiki/Kilowatt
>  21. http://en.wikipedia.org/wiki/Metric_horsepower
>  22. http://en.wikipedia.org/wiki/Horsepower
>  23.
> http://en.wikipedia.org/wiki/Buick_Regal#Fifth_generation_.282009.E2.80.93present.29
>  24. http://en.wikipedia.org/wiki/Kilowatt
>  25. http://en.wikipedia.org/wiki/Metric_horsepower
>  26. http://en.wikipedia.org/wiki/Horsepower
>  27. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
>  28. http://en.wikipedia.org/wiki/Kilowatt
>  29. http://en.wikipedia.org/wiki/Metric_horsepower
>  30. http://en.wikipedia.org/wiki/Horsepower
>  31.
> http://en.wikipedia.org/wiki/Buick_Regal#Fifth_generation_.282009.E2.80.93present.29
>  32. http://en.wikipedia.org/wiki/Kilowatt
>  33. http://en.wikipedia.org/wiki/Metric_horsepower
>  34. http://en.wikipedia.org/wiki/Horsepower
>  35. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
>  36. http://en.wikipedia.org/wiki/Saab_9-5
>  37. http://en.wikipedia.org/wiki/Saab_9-3
>  38. http://en.wikipedia.org/wiki/NEVS
>  39. http://en.wikipedia.org/wiki/Opel_Insignia
>  40. http://en.wikipedia.org/wiki/Opel_Astra#OPC_2
>  41. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
>  42. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
>  43.
> http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit§ion=25
>  44.
> http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit§ion=26
>  45. http://en.wikipedia.org/wiki/Turbocharged
>  46. http://en.wikipedia.org/wiki/Cadillac_ATS
>  47. http://en.wikipedia.org/wiki/Chevrolet_Malibu
>  48. http://en.wikipedia.org/wiki/Cadillac_XTS
>  49. http://en.wikipedia.org/wiki/Twin-scroll_turbocharger
>  50. http://en.wikipedia.org/wiki/Centrifugal_casting_(industrial)
>  51.
> http://www.caranddriver.com/reviews/2012-ford-mustang-boss-302-test-review
>  52. http://blog.caranddriver.com/name-that-exhaust-note-episode-103/
>  53.
> https://books.google.com/books?id=MaTmIcR2atAC&pg=PA74&lpg=PA74&dq=ford+engines+sodium+filled+exhaust+valves&source=bl&ots=RRBKRsUD5Z&sig=gPx7pk_Kb-FH5ufMokP2IXgNQBw&hl=en&sa=X&ei=6vjlVKj4JYqryQTJ14EI&ved=0CDsQ6AEwBjgK#v=onepage&q=ford%20engines%20sodium%20filled%20exhaust%20valves&f=false
>  54. mailto:kenn_green at yahoo.com
>  55. mailto:oldwheel at shaw.ca
>  56. mailto:drfortinbras at gmail.com
>  57. mailto:kenn_green at yahoo.com
>  58. mailto:detomaso at poca.com
>  59. mailto:drfortinbras at gmail.com
>  60. mailto:oldwheel at shaw.ca
>  61. mailto:DeTomaso at poca.com
>  62. http://poca.com/mailman/listinfo/detomaso_poca.com
>  63. mailto:oldwheel at shaw.ca
>  64. http://poca.com/mailman/listinfo/detomaso_poca.com
>  65. mailto:DeTomaso at poca.com
>  66. http://poca.com/mailman/listinfo/detomaso_poca.com
>  67. mailto:drfortinbras at gmail.com
>  68. mailto:oldwheel at shaw.ca
>  69. mailto:DeTomaso at poca.com
>  70. http://poca.com/mailman/listinfo/detomaso_poca.com
>  71. mailto:oldwheel at shaw.ca
>  72. http://poca.com/mailman/listinfo/detomaso_poca.com
>  73. mailto:DeTomaso at poca.com
>  74. http://poca.com/mailman/listinfo/detomaso_poca.com
>  75. mailto:DeTomaso at poca.com
>  76. http://poca.com/mailman/listinfo/detomaso_poca.com
>
>    Hidden links:
>  77.
> http://en.wikipedia.org/wiki/File:2006_Saturn_Ion_Red_Line_engine.jpg
>  78.
> http://en.wikipedia.org/wiki/File:2006_Saturn_Ion_Red_Line_engine.jpg
>  79. http://en.wikipedia.org/wiki/File:Car_show_013.jpg
>  80. http://en.wikipedia.org/wiki/File:Car_show_013.jpg
>
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-- 
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless.  They can only give you answers." -P. Picasso


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   yup and in stainless, and inconel ,
   the stainless valves actually are better at heat transfer than
   the titanium are ,
   jg
     __________________________________________________________________

   From: Scott Bell <scott at saccrestorations.net>
   To: detomaso at poca.com
   Sent: Thursday, February 19, 2015 1:09 PM
   Subject: Re: [DeTomaso] Sodium valves
   Sodium filled valves also come in titanium...
   -----Original Message-----
   From: DeTomaso [mailto:[1]detomaso-bounces at poca.com] On Behalf Of Sean
   Korb
   Sent: Thursday, February 19, 2015 8:29 AM
   To: j g
   Cc: &#39, Ken Green&#39, ; B. SEIB; &#39, DetomasoList&#39,
   Subject: Re: [DeTomaso] Sodium valves
   I'm fascinated by sodium cooled valves, but I think titanium is a more
   popular option in this crowd.  There were some made available for
   racing
   and while they do not have a cooling technology they do endure more
   heat
   than a stainless valve.  They come up on ebay or a swap meet
   occasionally.
   I just have a street engine so I'm not concerned... just fascinated.
   sean
   On Thu, Feb 19, 2015 at 10:01 AM, j g via DeTomaso
   <[2]detomaso at poca.com>
   wrote:
   >    I take no credit for the content below just passing along
   published
   >    public domain material.
   >
   > LSJ[[1]edit]
   >
   >    Ecotec LSJ engine in a 2006 [2]Saturn Ion Red Line
   >    The LSJ is a supercharged version of the LK9 Ecotec 2.0 La 1,998
   cc
   >    (121.9 cu in)a with an [3]Eaton M62 [4]Roots-type supercharger and
   >    air-to-liquid [5]intercooler. The LSJ shares many of its
   components
   >    with the LK9 such as: piston cooling jets, oil cooler, pistons,
   >    connecting rods, crankshaft, oil pan, sodium-filled exhaust valves
   and
   >    cylinder head.^[6][8] It is rated at 205 hp
   >
   > 2.0 LNF[[7]edit]
   >
   >    Ecotec LNF in a [8]Pontiac Solstice
   >    A turbocharged [9]direct injected (redubbed Spark Ignition Direct
   >    Injection) Ecotec was introduced in the 2007 [10]Pontiac Solstice
   GXP
   >    and [11]Saturn Sky Red Line. In these applications, the engine is
   >    mounted longitudinally. Displacement is 2.0 La1,998 cc (121.9 cu
   >    in)awith a square 86 millimetres (3.4 in) bore and stroke.
   Compression
   >    is 9.2:1 and maximum boost is 1.4 bar (20.0 psi), delivering 260
   hp
   >    (190 kW) at 5300 rpm and 260 lbA.ft (350 NA.m) of torque from 2500
   to
   >    5250 rpm. Engine redline is at 6300 rpm and premium fuel is
   >    recommended. The sodium filled exhaust valves were based on
   technology
   >    developed for the Corvette V8 powertrains. The sodium fuses and
   becomes
   >    a liquid at idle, which improves conductivity and draws heat away
   from
   >    the valve face and valve guide towards the stem to be cooled by
   the
   >    engine oil circulating in this area.[12]sodium-filled stainless
   steel
   >    [13]Inconel exhaust [14]valves
   >
   >
   > LDK[[15]edit]
   >
   >    An updated variant of the LNF (also with 9.2:1 compression ratio).
   This
   >    engine is also known as A20NFT and A20NHT by GM Powertrain Europe.
   >    This engine is used in: all have [16]sodium-filled stainless steel
   >    [17]Inconel exhaust [18]valves
   >    Year(s) Model Power Torque
   >    2009 [19]Opel Insignia 162 [20]kW (220 [21]PS; 217 [22]hp) @ 5300
   rpm
   >    350 NA.m (258 lbA.ft) @ 2500 rpm
   >    2009a2010 [23]Buick Regal Turbo 162 [24]kW (220 [25]PS; 217
   [26]hp) @
   >    5300 rpm 350 NA.m (258 lbA.ft) @ 2500 rpm
   >    2010a2013 [27]Buick Regal GS (Chinese Market) 162 [28]kW (220
   [29]PS;
   >    217 [30]hp) @ 5300 rpm 350 NA.m (258 lbA.ft) @ 2500 rpm
   >    2009a2010 [31]Buick Regal Turbo (Hirsch Performance) 192 [32]kW
   (261
   >    [33]PS; 257 [34]hp) @ 5400 rpm 400 NA.m (295 lbA.ft) @ 3000a4000
   rpm
   >    2010a2013 [35]Buick Regal GS (Hirsch Performance) 192 kW (261 PS;
   257
   >    hp) @ 5400 rpm 400 NA.m (300 lbA.ft) @ 3000a4000 rpm
   >    2010a2012 [36]Saab 9-5 162 kW (220 PS; 217 hp) @ 5300 rpm 350 NA.m
   (258
   >    lbA.ft) @ 2500 rpm
   >    2011, 2013a [37]Saab 9-3 ([38]NEVS) 162 kW (220 PS; 217 hp) @ 5300
   rpm
   >    350 NA.m (258 lbA.ft) @ 2500 rpm
   >    2011 [39]Opel Insignia 4x4 184 kW (250 PS; 247 hp) @ 5300 rpm 400
   NA.m
   >    (300 lbA.ft) @ 2400a3600 rpm
   >    2012 [40]Opel Astra J OPC 206 kW (280 PS; 276 hp) @ 5500 rpm 400
   NA.m
   >    (300 lbA.ft) @ 2500a4500 rpm
   >    2014a [41]Buick Regal GS (Chinese Market) 187 kW (254 PS; 251 hp)
   @
   >    5300 rpm 350 NA.m (260 lbA.ft) @ 2000a5000 rpm
   >    2014a [42]Buick Regal GS (Hirsch Performance) 205 kW (279 PS; 275
   hp) @
   >    5400 rpm 410 NA.m (300 lbA.ft) @ 3000a4000 rpm
   >
   >
   > 2.0[[43]edit]
   >
   > LTG[[44]edit]
   >
   >    A 2.0 L (1998 cc) [45]turbocharged direct injection version of the
   gen
   >    III Ecotec will be available in 2013 [46]Cadillac ATS and
   [47]Chevrolet
   >    Malibu.This engine is also available in [48]Cadillac XTS in
   Chinese
   >    market. Bore and stroke are both 86.0 millimetres (3.39 in),
   >    compression is 9.5:1. The engine uses [49]twin-scroll turbocharger
   with
   >    electronically controlled wastegate/bypass valve, air-to-air
   >    intercooler, stainless steel dual-scroll (1a4, 2a3) exhaust
   manifold
   >    designed to withstand 980 ADEGC (1,800 ADEGF) turbine temperature,
   and
   >    [50]rotacast aluminum alloy (A356T6) cylinder head with
   sodium-filled
   >    exhaust valves
   >
   >
   >    ford stuff
   >    ford FE "The intake and exhaust valves are larger than those found
   on
   >    the 427 production engine". The exhaust valves feature a sodium
   filled
   >    hollow stem for better heat conduction
   >
   >    5.0-liter V-8: 435 hp, 400 lb-ft
   >    Fordas Coyote V-8 carries over as well, although it receives more
   >    substantial changes. Mustang engineers used the [51]low-volume
   Boss
   >    302as V-8, a [52]glorious-sounding 444-hp powerhouse, as its
   >    performance bogey. Unfortunately, the Boss engine incorporated
   some
   >    expensive manufacturing tricks that Ford couldnat possibly use in
   a
   >    mass-produced engine, like hollow intake valves, sodium-filled
   exhaust
   >    valves, and CNC-ported heads, so it had to look elsewhere to
   approach
   >    Boss power levels.
   >
   >
   >    The 1963 Indy pushrod engine produced 375 BHP at 7200 RPM from 255
   >    cubic inches
   >    Ford powered Lotus cars were prepared for Indy in 1963, to be
   driven by
   >    Dan Gurney and Jimmy Clark. The high performance 260 used in the
   Cobra
   >    was the starting point, dubbed the Stage 0 engine. Stage 1
   involved
   >    revised and enlarged intake and exhaust ports, and 12.5:1
   compression
   >    through the used of forged pop-up pistons. The special intake
   manifold
   >    carried four 46mm downdraft Webers carburetors. Larger valves,
   >    hollow-stemmed intakes and sodium-filled exhausts were fitted to
   the
   >    heads, along with high silicon content aluminum alloy retainers.
   >
   >
   >
   >
   [53][3]https://books.google.com/books?id=MaTmIcR2atAC&pg=PA74&lpg=PA74&
   dq=
   >
   ford+engines+sodium+filled+exhaust+valves&source=bl&ots=RRBKRsUD5Z&sig=
   >
   gPx7pk_Kb-FH5ufMokP2IXgNQBw&hl=en&sa=X&ei=6vjlVKj4JYqryQTJ14EI&ved=0CDs
   >
   Q6AEwBjgK#v=onepage&q=ford%20engines%20sodium%20filled%20exhaust%20valv
   >    es&f=false
   >
   >
   __________________________________________________________________
   >
   >    From: B. SEIB <[4]oldwheel at shaw.ca>
   >    To: 'j g' <[5]notstock at yahoo.com>
   >    Sent: Wednesday, February 18, 2015 6:27 PM
   >    Subject: RE: [DeTomaso] Sodium valves
   >    I wonder if the Buick GN had sodium ex valves then too?
   >    Do you know if any of Ford's turbo or supercharged engines use
   sodium
   >    filled valves jg?
   >    Barry
   >
   __________________________________________________________________
   >
   >    From: j g [mailto:[6]notstock at yahoo.com]
   >    Sent: February-18-15 5:25 PM
   >    To: B. SEIB; 'Ken Green'; 'Charles De Francisco'; 'DetomasoList'
   >    Subject: Re: [DeTomaso] Sodium valves
   >    sodium filled exhaust valves were also used on the corvair turbo
   >    charged engines  from 62 on to the end of the 68
   >    all 911 engines up to the 964  have sodium filled exhaust valves .
   >    lt-4 zo6 had sodium filled exhaust valves . all turbo and
   supercharged
   >    chevrolet engines have had sodium filled exhaust valves from the
   >    factory. ls7 included
   >    On the exhaust side, sodium-filling is the best way to increase
   the
   >    head cooling capacity of a hollow exhaust valve. If stock diameter
   >    steel valves are required, but a valve weight is not mandated,
   going to
   >    a hollow intake and sodium-filled exhaust is certainly a major
   >    advantage. better cooling of the valve and the guide as well as
   lighter
   >    than other types except titanium .
   >    Stainless steel (for street performance) has much better
   durability
   >    characteristics than titanium, and the street guys wonat usually
   see
   >    the real benefits of titanium. In racing, use titanium when you
   want to
   >    lose weighta|and spend a lot of money. sodium filled exhaust
   valves
   >    were an off shoot spin off from the aircraft engines way back .
   >
   >    jg
   >
   __________________________________________________________________
   >
   >    From: B. SEIB <[7]oldwheel at shaw.ca>
   >    To: 'Ken Green' <[8]kenn_green at yahoo.com>; 'Charles De Francisco'
   >    <[9]drfortinbras at gmail.com>; 'DetomasoList'
   <[10]detomaso at poca.com>
   >    Sent: Wednesday, February 18, 2015 4:12 PM
   >    Subject: Re: [DeTomaso] Sodium valves
   >      Yes, that sounds reasonable. I think it was for use in aircraft
   >    engines
   >      with some form of supercharging that they were originally
   developed.
   >    I
   >      just didn't realize they were back in style!
   >      Barry
   >
   __________________________________________________________________
   >      From: Ken Green [mailto:[54][11]kenn_green at yahoo.com]
   >      Sent: February-18-15 4:07 PM
   >      To: B. SEIB; 'Charles De Francisco'; 'DetomasoList'
   >      Subject: Re: [DeTomaso] Sodium valves
   >      What I read said the stock LS7 has sodium filled exhaust valves.
   >      I would guess that a turbo charged production engine might have
   them
   >    to
   >      handle the heat?
   >      Ken
   >
   __________________________________________________________________
   >      From: B. SEIB <[55][12]oldwheel at shaw.ca>
   >      To: 'Charles De Francisco' <[56][13]drfortinbras at gmail.com>;
   'Ken Green'
   >      <[57][14]kenn_green at yahoo.com>; 'DetomasoList'
   <[58][15]detomaso at poca.com>
   >      Sent: Wednesday, February 18, 2015 2:00 PM
   >      Subject: Re: [DeTomaso] Sodium valves
   >          Thanks Charles
   >        I wouldn't be surprised if sodium valves were used in Nascar
   hemis
   >    or
   >        Boss 429 engines too. I just don't recall any production
   engines
   >    with
   >        them, but I could be wrong.....
   >        Ken Green says the LS7 uses them !
   >        I'm surprised at that. I wonder if that's in the GM engine as
   >      produced
   >        or an aftermarket thing?
   >        Ken, do you know?
   >        Barry
   >
   >    __________________________________________________________________
   >          From: Charles De Francisco
   [mailto:[1][59][16]drfortinbras at gmail.com]
   >        Sent: February-18-15 3:41 PM
   >        To: B. SEIB
   >        Subject: Re: [DeTomaso] Sodium valves
   >        Hi Barry your info was almost rite on.  Ford did offer the
   sodium
   >        valves on the 427 engines for thr Cobras used in their race
   program
   >        There was a issue with the nos valves as the sodium corroded
   the
   >      inside
   >        causing them to come apart as they were drilled to make the
   stem
   >        hollow..the story I heard was the sodium was to provide
   cooling of
   >      the
   >        valve stem in endurance racing...we used some
   >        In drag race engines as they were somewhat lighter..a much
   better
   >    set
   >        up would be manley stainless valves..?..Pete Coleman
   >        At manley in Lakewood n.j. 732-905-3366 would be able to help
   you
   >    on
   >        this issue.
   >        On Wednesday, February 18, 2015, B. SEIB
   >    <[1][2][60][17]oldwheel at shaw.ca>
   >      wrote:
   >          Hi Robert
   >          Sodium valves were a feature in the 375HP version of
   Corvette 327
   >          engines
   >          with fuel injection. I don't recall sodium valves being used
   in
   >          other US
   >          standard production engines. Maybe some other exotic engines
   did.
   >          Later
   >          valve steels and technology made the risks and expense of
   sodium
   >          filled
   >          valves obsolete in HP engines. The idea originated in
   aircraft
   >          piston
   >          engines back around WWII, I think, and was related to trying
   to
   >      cool
   >          exhaust
   >          valves under high stress loads.
   >          The 1971 Cleveland 351-4V engines in Panteras (and
   Mustangs,etc.)
   >          had high
   >          compression closed chamber (quench) heads, single point
   >          distributors, small
   >          square bore 600cfm 4300A carbs and 2 bolt mains. The Boss
   351 was
   >          the only
   >          351C to get 4 bolt mains, dual point distributor and the
   large
   >          spreadbore
   >          Motorcraft 4300D carb in 1971 along with high compression CC
   >    heads.
   >          Some people have said that some 1971 4V engines found there
   way
   >      into
   >          very
   >          early 72 Panteras, but probably only in early January 72
   cars.
   >    The
   >          1972
   >          Cobra-jet engines would have entered production in Sept of
   1971
   >    and
   >          by the
   >          end of 1971, DeTomaso was likely to have used their engine
   stock
   >    on
   >          hand and
   >          have received new Cobra-jet engines from Ford. I understand
   >      DeTomaso
   >          was
   >          generally receiving engines only about a month or so after
   they
   >      were
   >          produced in the US plant.
   >          1972 Panteras came with Cobra-jet engines that had open
   chamber
   >          (lower
   >          compression) 4V heads but with 4 bolt mains, dual point
   >    distributor
   >          and
   >          large spreadbore Motorcraft 4300D carb. This was the strange
   >    result
   >          of Ford
   >          trying to recover some of the power lost to stricter
   emission
   >          standards for
   >          1972. The compression had to come down for unleaded gas and
   Ford
   >          upped the
   >          RPM to try to get some oomph back. They retarded the cam
   timing
   >    and
   >          hopped
   >          it up a bit to get the power at higher revs, thus the dual
   point
   >      and
   >          4 bolt
   >          mains.
   >          1973 and 74 went downhill from there, with increasing
   emissions
   >    and
   >          lower
   >          compression.
   >          So...the best heads were in 1971, but everything else was
   better
   >    in
   >          1972.
   >          Unless you have a 1971 BOSS 351 engine, which never came in
   a
   >          production US
   >          market Pantera. Pity that.
   >          Barry
   >          _______________________________________________
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   >      References
   >        1. mailto:[5][63][20]oldwheel at shaw.ca
   >        2. javascript:;
   >        3.
   [6][64][21]http://poca.com/mailman/listinfo/detomaso_poca.com
   >      _______________________________________________
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   >      Posted emails must not exceed 1.5 Megabytes
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   >      To manage your subscription (change email address, unsubscribe,
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   >      use the links above.
   >    References
   >      1. mailto:[67][24]drfortinbras at gmail.com
   >      2. mailto:[68][25]oldwheel at shaw.ca
   >      3. mailto:[69][26]DeTomaso at poca.com
   >      4. [70][27]http://poca.com/mailman/listinfo/detomaso_poca.com
   >      5. mailto:[71][28]oldwheel at shaw.ca
   >      6. [72][29]http://poca.com/mailman/listinfo/detomaso_poca.com
   >      7. mailto:[73][30]DeTomaso at poca.com
   >      8. [74][31]http://poca.com/mailman/listinfo/detomaso_poca.com
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   >
   > References
   >
   >    Visible links
   >    1.
   >
   [34]http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=e
   ditAS:ion=4
   >    2. [35]http://en.wikipedia.org/wiki/Saturn_Ion
   >    3. [36]http://en.wikipedia.org/wiki/Eaton_Corporation
   >    4. [37]http://en.wikipedia.org/wiki/Roots-type_supercharger
   >    5. [38]http://en.wikipedia.org/wiki/Intercooler
   >    6. [39]http://en.wikipedia.org/wiki/GM_Ecotec_engine#cite_note-8
   >    7.
   >
   [40]http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=e
   ditAS:ion=10
   >    8. [41]http://en.wikipedia.org/wiki/Pontiac_Solstice
   >    9. [42]http://en.wikipedia.org/wiki/Gasoline_direct_injection
   >  10. [43]http://en.wikipedia.org/wiki/Pontiac_Solstice
   >  11. [44]http://en.wikipedia.org/wiki/Saturn_Sky
   >  12. [45]http://en.wikipedia.org/wiki/Sodium
   >  13. [46]http://en.wikipedia.org/wiki/Inconel
   >  14. [47]http://en.wikipedia.org/wiki/Poppet_valve
   >  15.
   >
   [48]http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=e
   ditAS:ion=11
   >  16. [49]http://en.wikipedia.org/wiki/Sodium
   >  17. [50]http://en.wikipedia.org/wiki/Inconel
   >  18. [51]http://en.wikipedia.org/wiki/Poppet_valve
   >  19. [52]http://en.wikipedia.org/wiki/Opel_Insignia
   >  20. [53]http://en.wikipedia.org/wiki/Kilowatt
   >  21. [54]http://en.wikipedia.org/wiki/Metric_horsepower
   >  22. [55]http://en.wikipedia.org/wiki/Horsepower
   >  23.
   >
   [56]http://en.wikipedia.org/wiki/Buick_Regal#Fifth_generation_.282009.E
   2.80.93present.29
   >  24. [57]http://en.wikipedia.org/wiki/Kilowatt
   >  25. [58]http://en.wikipedia.org/wiki/Metric_horsepower
   >  26. [59]http://en.wikipedia.org/wiki/Horsepower
   >  27. [60]http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
   >  28. [61]http://en.wikipedia.org/wiki/Kilowatt
   >  29. [62]http://en.wikipedia.org/wiki/Metric_horsepower
   >  30. [63]http://en.wikipedia.org/wiki/Horsepower
   >  31.
   >
   [64]http://en.wikipedia.org/wiki/Buick_Regal#Fifth_generation_.282009.E
   2.80.93present.29
   >  32. [65]http://en.wikipedia.org/wiki/Kilowatt
   >  33. [66]http://en.wikipedia.org/wiki/Metric_horsepower
   >  34. [67]http://en.wikipedia.org/wiki/Horsepower
   >  35. [68]http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
   >  36. [69]http://en.wikipedia.org/wiki/Saab_9-5
   >  37. [70]http://en.wikipedia.org/wiki/Saab_9-3
   >  38. [71]http://en.wikipedia.org/wiki/NEVS
   >  39. [72]http://en.wikipedia.org/wiki/Opel_Insignia
   >  40. [73]http://en.wikipedia.org/wiki/Opel_Astra#OPC_2
   >  41. [74]http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
   >  42. [75]http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
   >  43.
   >
   [76]http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=e
   ditAS:ion=25
   >  44.
   >
   [77]http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=e
   ditAS:ion=26
   >  45. [78]http://en.wikipedia.org/wiki/Turbocharged
   >  46. [79]http://en.wikipedia.org/wiki/Cadillac_ATS
   >  47. [80]http://en.wikipedia.org/wiki/Chevrolet_Malibu
   >  48. [81]http://en.wikipedia.org/wiki/Cadillac_XTS
   >  49. [82]http://en.wikipedia.org/wiki/Twin-scroll_turbocharger
   >  50.
   [83]http://en.wikipedia.org/wiki/Centrifugal_casting_(industrial)
   >  51.
   >
   [84]http://www.caranddriver.com/reviews/2012-ford-mustang-boss-302-test
   -review
   >  52.
   [85]http://blog.caranddriver.com/name-that-exhaust-note-episode-103/
   >  53.
   >
   [86]https://books.google.com/books?id=MaTmIcR2atAC&pg=PA74&lpg=PA74&dq=
   ford+engines+sodium+filled+exhaust+valves&source=bl&ots=RRBKRsUD5Z&sig=
   gPx7pk_Kb-FH5ufMokP2IXgNQBw&hl=en&sa=X&ei=6vjlVKj4JYqryQTJ14EI&ved=0CDs
   Q6AEwBjgK#v=onepage&q=ford%20engines%20sodium%20filled%20exhaust%20valv
   es&f=false
   >  54. mailto:[87]kenn_green at yahoo.com
   >  55. mailto:[88]oldwheel at shaw.ca
   >  56. mailto:[89]drfortinbras at gmail.com
   >  57. mailto:[90]kenn_green at yahoo.com
   >  58. mailto:[91]detomaso at poca.com
   >  59. mailto:[92]drfortinbras at gmail.com
   >  60. mailto:[93]oldwheel at shaw.ca
   >  61. mailto:[94]DeTomaso at poca.com
   >  62. [95]http://poca.com/mailman/listinfo/detomaso_poca.com
   >  63. mailto:[96]oldwheel at shaw.ca
   >  64. [97]http://poca.com/mailman/listinfo/detomaso_poca.com
   >  65. mailto:[98]DeTomaso at poca.com
   >  66. [99]http://poca.com/mailman/listinfo/detomaso_poca.com
   >  67. mailto:[100]drfortinbras at gmail.com
   >  68. mailto:[101]oldwheel at shaw.ca
   >  69. mailto:[102]DeTomaso at poca.com
   >  70. [103]http://poca.com/mailman/listinfo/detomaso_poca.com
   >  71. mailto:[104]oldwheel at shaw.ca
   >  72. [105]http://poca.com/mailman/listinfo/detomaso_poca.com
   >  73. mailto:[106]DeTomaso at poca.com
   >  74. [107]http://poca.com/mailman/listinfo/detomaso_poca.com
   >  75. mailto:[108]DeTomaso at poca.com
   >  76. [109]http://poca.com/mailman/listinfo/detomaso_poca.com
   >
   >    Hidden links:
   >  77.
   >
   [110]http://en.wikipedia.org/wiki/File:2006_Saturn_Ion_Red_Line_engine.
   jpg
   >  78.
   >
   [111]http://en.wikipedia.org/wiki/File:2006_Saturn_Ion_Red_Line_engine.
   jpg
   >  79. [112]http://en.wikipedia.org/wiki/File:Car_show_013.jpg
   >  80. [113]http://en.wikipedia.org/wiki/File:Car_show_013.jpg
   >
   > _______________________________________________
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   --
   Sean Korb [116]spkorb at spkorb.org [117]http://www.spkorb.org
   '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
   #1382
   "The more you drive, the less intelligent you get" --Miller
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References

   1. mailto:detomaso-bounces at poca.com
   2. mailto:detomaso at poca.com
   3. https://books.google.com/books?id=MaTmIcR2atAC&pg=PA74&lpg=PA74&dq=
   4. mailto:oldwheel at shaw.ca
   5. mailto:notstock at yahoo.com
   6. mailto:notstock at yahoo.com
   7. mailto:oldwheel at shaw.ca
   8. mailto:kenn_green at yahoo.com
   9. mailto:drfortinbras at gmail.com
  10. mailto:detomaso at poca.com
  11. mailto:kenn_green at yahoo.com
  12. mailto:oldwheel at shaw.ca
  13. mailto:drfortinbras at gmail.com
  14. mailto:kenn_green at yahoo.com
  15. mailto:detomaso at poca.com
  16. mailto:drfortinbras at gmail.com
  17. mailto:oldwheel at shaw.ca
  18. mailto:DeTomaso at poca.com
  19. http://poca.com/mailman/listinfo/detomaso_poca.com
  20. mailto:oldwheel at shaw.ca
  21. http://poca.com/mailman/listinfo/detomaso_poca.com
  22. mailto:DeTomaso at poca.com
  23. http://poca.com/mailman/listinfo/detomaso_poca.com
  24. mailto:drfortinbras at gmail.com
  25. mailto:oldwheel at shaw.ca
  26. mailto:DeTomaso at poca.com
  27. http://poca.com/mailman/listinfo/detomaso_poca.com
  28. mailto:oldwheel at shaw.ca
  29. http://poca.com/mailman/listinfo/detomaso_poca.com
  30. mailto:DeTomaso at poca.com
  31. http://poca.com/mailman/listinfo/detomaso_poca.com
  32. mailto:DeTomaso at poca.com
  33. http://poca.com/mailman/listinfo/detomaso_poca.com
  34. http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit&section=4
  35. http://en.wikipedia.org/wiki/Saturn_Ion
  36. http://en.wikipedia.org/wiki/Eaton_Corporation
  37. http://en.wikipedia.org/wiki/Roots-type_supercharger
  38. http://en.wikipedia.org/wiki/Intercooler
  39. http://en.wikipedia.org/wiki/GM_Ecotec_engine#cite_note-8
  40. http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit&section=10
  41. http://en.wikipedia.org/wiki/Pontiac_Solstice
  42. http://en.wikipedia.org/wiki/Gasoline_direct_injection
  43. http://en.wikipedia.org/wiki/Pontiac_Solstice
  44. http://en.wikipedia.org/wiki/Saturn_Sky
  45. http://en.wikipedia.org/wiki/Sodium
  46. http://en.wikipedia.org/wiki/Inconel
  47. http://en.wikipedia.org/wiki/Poppet_valve
  48. http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit&section=11
  49. http://en.wikipedia.org/wiki/Sodium
  50. http://en.wikipedia.org/wiki/Inconel
  51. http://en.wikipedia.org/wiki/Poppet_valve
  52. http://en.wikipedia.org/wiki/Opel_Insignia
  53. http://en.wikipedia.org/wiki/Kilowatt
  54. http://en.wikipedia.org/wiki/Metric_horsepower
  55. http://en.wikipedia.org/wiki/Horsepower
  56. http://en.wikipedia.org/wiki/Buick_Regal#Fifth_generation_.282009.E2.80.93present.29
  57. http://en.wikipedia.org/wiki/Kilowatt
  58. http://en.wikipedia.org/wiki/Metric_horsepower
  59. http://en.wikipedia.org/wiki/Horsepower
  60. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
  61. http://en.wikipedia.org/wiki/Kilowatt
  62. http://en.wikipedia.org/wiki/Metric_horsepower
  63. http://en.wikipedia.org/wiki/Horsepower
  64. http://en.wikipedia.org/wiki/Buick_Regal#Fifth_generation_.282009.E2.80.93present.29
  65. http://en.wikipedia.org/wiki/Kilowatt
  66. http://en.wikipedia.org/wiki/Metric_horsepower
  67. http://en.wikipedia.org/wiki/Horsepower
  68. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
  69. http://en.wikipedia.org/wiki/Saab_9-5
  70. http://en.wikipedia.org/wiki/Saab_9-3
  71. http://en.wikipedia.org/wiki/NEVS
  72. http://en.wikipedia.org/wiki/Opel_Insignia
  73. http://en.wikipedia.org/wiki/Opel_Astra#OPC_2
  74. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
  75. http://en.wikipedia.org/wiki/Buick_Regal#.23Regal_GS
  76. http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit&section=25
  77. http://en.wikipedia.org/w/index.php?title=GM_Ecotec_engine&action=edit&section=26
  78. http://en.wikipedia.org/wiki/Turbocharged
  79. http://en.wikipedia.org/wiki/Cadillac_ATS
  80. http://en.wikipedia.org/wiki/Chevrolet_Malibu
  81. http://en.wikipedia.org/wiki/Cadillac_XTS
  82. http://en.wikipedia.org/wiki/Twin-scroll_turbocharger
  83. http://en.wikipedia.org/wiki/Centrifugal_casting_
  84. http://www.caranddriver.com/reviews/2012-ford-mustang-boss-302-test-review
  85. http://blog.caranddriver.com/name-that-exhaust-note-episode-103/
  86. https://books.google.com/books?id=MaTmIcR2atAC&pg=PA74&lpg=PA74&dq=ford+engines+sodium+filled+exhaust+valves&source=bl&ots=RRBKRsUD5Z&sig=gPx7pk_Kb-FH5ufMokP2IXgNQBw&hl=en&sa=X&ei=6vjlVKj4JYqryQTJ14EI&ved=0CDsQ6AEwBjgK#v=onepage&q=ford%20engines%20sodium%20filled%20exhaust%20valves&f=false
  87. mailto:kenn_green at yahoo.com
  88. mailto:oldwheel at shaw.ca
  89. mailto:drfortinbras at gmail.com
  90. mailto:kenn_green at yahoo.com
  91. mailto:detomaso at poca.com
  92. mailto:drfortinbras at gmail.com
  93. mailto:oldwheel at shaw.ca
  94. mailto:DeTomaso at poca.com
  95. http://poca.com/mailman/listinfo/detomaso_poca.com
  96. mailto:oldwheel at shaw.ca
  97. http://poca.com/mailman/listinfo/detomaso_poca.com
  98. mailto:DeTomaso at poca.com
  99. http://poca.com/mailman/listinfo/detomaso_poca.com
 100. mailto:drfortinbras at gmail.com
 101. mailto:oldwheel at shaw.ca
 102. mailto:DeTomaso at poca.com
 103. http://poca.com/mailman/listinfo/detomaso_poca.com
 104. mailto:oldwheel at shaw.ca
 105. http://poca.com/mailman/listinfo/detomaso_poca.com
 106. mailto:DeTomaso at poca.com
 107. http://poca.com/mailman/listinfo/detomaso_poca.com
 108. mailto:DeTomaso at poca.com
 109. http://poca.com/mailman/listinfo/detomaso_poca.com
 110. http://en.wikipedia.org/wiki/File:2006_Saturn_Ion_Red_Line_engine.jpg
 111. http://en.wikipedia.org/wiki/File:2006_Saturn_Ion_Red_Line_engine.jpg
 112. http://en.wikipedia.org/wiki/File:Car_show_013.jpg
 113. http://en.wikipedia.org/wiki/File:Car_show_013.jpg
 114. mailto:DeTomaso at poca.com
 115. http://poca.com/mailman/listinfo/detomaso_poca.com
 116. mailto:spkorb at spkorb.org
 117. http://www.spkorb.org/
 118. mailto:DeTomaso at poca.com
 119. http://poca.com/mailman/listinfo/detomaso_poca.com


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