[DeTomaso] fuel pumps

mark skwarek ehpantera at yahoo.com
Wed Nov 19 00:39:04 EST 2014


I've installed -8 from the pickup to the carb. Pickup tube runs thru the filler neck  Sometimes fill up are a bit slow. No problems running lean with Robbmc 500 pump and 623 HP. 

     On Tuesday, November 18, 2014 11:26 PM, Garth Rodericks via DeTomaso <detomaso at poca.com> wrote:
   

   I didn't use an adapter to the tank drain either.  The 1/2" SAE Groco
  fuel valve threaded right into the metric bung on the bottom of the
  tank. I did have a fuel drip at first, but the added fuel safe joint
  compound to the threads on the valve, as well as an O-ring from
  O'Reilly Auto Parts and everything is sealed up tight.  And it sure
  came in handy to just close the fuel valve when I replaced my fuel pump
  with the RobbMC pump a few months ago - no mess, no need to drain the
  tank, no clamping the fuel line to stop flow to the pump, etc. Just
  turn the valve a quarter turn.  Also a great theft deterrent.  I just
  reach under there and give the valve a quarter turn when not using the
  car (or when staying at a hotel such as when I took it to the Ironstone
  Concours in September) and if someone tries to steal it, they won't get
  far.
    __________________________________________________________________

  From: Will Kooiman <will.kooiman at gmail.com>
  To: Garth Rodericks <garth_rodericks at yahoo.com>; Larry - Ohio Time
  <Larry at ohiotimecorp.com>; "adin at frontier.net" <adin at frontier.net>
  Cc: "detomaso at poca.com" <detomaso at poca.com>
  Sent: Tuesday, November 18, 2014 4:16 PM
  Subject: Re: [DeTomaso] fuel pumps
  I did an AN 90-degree on the bottom of the tank to -8, to a mongo
  filter,
  to an electric pump.
  I know, youA^1re not supposed to run a filter before the pump.  Sue
  me.  I
  will clean it annually, and itA^1s a really big filter.
  I had a RobbM mechanical, but I recently switched to Webers, which like
  4-6psi.  I was going to run the Robb pump with a regulator to step it
  down
  to ~5psi, but all that crap on the front of the engine looked too red
  neck.
  At any rate, -8 is a nice size from the bottom of the tank to the fuel
  pump, and it doesnA^1t hang lower than the body/frame, so IA^1m not
  worried
  about it hitting anything.
  Another note is that the plug has metric threads that are very close to
  AN
  threads.  If you use the proper sized AN elbow, you donA^1t need an
  adapter.
  If I had the tank out, I might try a submersible electric pump.  But
  as-is, I am very happy with my results.
  On 11/18/14, 5:35 PM, "Garth Rodericks via DeTomaso"
  <[1]detomaso at poca.com>
  wrote:
  >  If I recall correctly, the welded bung in the bottom of the tank
  >  already extends at least 1/4" up into the tank. I'm not too
  concerned
  >  with crap from the bottom of the tank.  My tank was spotless inside
  >  before reinstalling the engine and I added a serviceable pre-filter
  >  between the tank and the pump and the obligatory fuel filter between
  >  the pump and carb as well.  The only way crap will get into the tank
  is
  >  if it comes from the gas pump at a station, and I'd rather the crap
  >  gets removed from the bottom of my tank and trapped by the filter
  than
  >  left to collect and build up to the point of causing recurring
  >  problems.
  >  My 2-cents. YMMV.
  >    __________________________________________________________________
  >
  >  From: Larry - Ohio Time <[2]Larry at ohiotimecorp.com>
  >  To: 'Garth Rodericks' <[3]garth_rodericks at yahoo.com>;
  [4]adin at frontier.net
  >  Cc: [5]detomaso at poca.com
  >  Sent: Tuesday, November 18, 2014 12:56 PM
  >  Subject: RE: [DeTomaso] fuel pumps
  >  The only thing I mite add is to weld a small nipple (1\2" long) onto
  >  the end
  >  of the valve going into the tank so that you are not taking the fuel
  >  and
  >  crap off the bottom of the tank into the line.
  >  Larry (too much old crap) - Cleveland
  >  -----Original Message-----
  >  From: DeTomaso [mailto:[1][6]detomaso-bounces at poca.com] On Behalf Of
  Garth
  >  Rodericks via DeTomaso
  >  Sent: Tuesday, November 18, 2014 3:40 PM
  >  To: DeTomaso Mail List; [2][7]adin at frontier.net
  >  Subject: Re: [DeTomaso] fuel pumps
  >  One more comment...
  >  Note that this 90-degree valve is only 2.75" top to bottom, which
  means
  >  the
  >  installed height is less since it threads into the drain plug bung
  in
  >  the
  >  bottom of the
  >
  tank.http://images.jamestowndistributors.com/woeimages/hardware/large/5
  >  6744-
  >  1.jpg
  >  Therefore, there are no valves, hoses or fittings to dangle below
  the
  >  Pantera's chassis or frame rails to risk being broken off by speed
  >  bumps or
  >  stray road debris.
  >        From: Garth Rodericks <[3][8]garth_rodericks at yahoo.com>
  >  To: DeTomaso Mail List <[4][9]detomaso at poca.com>;
  "[5][10]adin at frontier.net"
  >  <[6][11]adin at frontier.net>
  >  Sent: Tuesday, November 18, 2014 12:35 PM
  >  Subject: fuel pumps
  >
  >  <<< Also, it seems any pump sucking through a tiny inlet will never
  be
  >  happy. Anyone done a -8 upgrade from the tank to the pump? >>>
  >    Not a -8, but I plumbed mine with 3/8" (-6).
  >  I went with the RobbMC pump and pre-filter on my 383 stroker
  Cleveland
  >  when
  >  the Holley mechanical pump began leaking.I plumbed it from the
  bottom
  >  of the
  >  tank with a 1/2" 90-degree stainless marine fuel valve from Groco.
  >
  [7][12]http://www.jamestowndistributors.com/userportal/show_product.do?
  pid=
  >  56744
  >  and 3/8" steel fuel line from the pump to the top of the engine
  where
  >  it
  >  goes through a fuel filter right before the carb inlet.
  >  The biggest issue, regardless of where you plumb your fuel line from
  is
  >  the
  >  restriction in the banjo fitting or elbow.  The stock banjo fitting
  on
  >  the
  >  top of the tank forces all the fuel through a small orifice that's
  >  about
  >  1/8" in diameter.  And many 90-degree fittings significantly
  restrict
  >  fuel
  >  flow as well.  I went with the 1/2" Groco Marine fitting so it
  wouldn't
  >  become the bottleneck that starves my engine for fuel.
  >  Cheers!Garth#4033
  >
  >References
  >
  >  1. mailto:[13]detomaso-bounces at poca.com
  >  2. mailto:[14]adin at frontier.net
  >  3. mailto:[15]garth_rodericks at yahoo.com
  >  4. mailto:[16]detomaso at poca.com
  >  5. mailto:[17]adin at frontier.net
  >  6. mailto:[18]adin at frontier.net
  >  7.
  >[19]http://www.jamestowndistributors.com/userportal/show_product.do?pi
  d=56744
  >_______________________________________________
  >
  >Detomaso Forum Managed by POCA
  >
  >DeTomaso mailing list
  >[20]DeTomaso at poca.com
  >[21]http://poca.com/mailman/listinfo/detomaso_poca.com

References

  1. mailto:detomaso at poca.com
  2. mailto:Larry at ohiotimecorp.com
  3. mailto:garth_rodericks at yahoo.com
  4. mailto:adin at frontier.net
  5. mailto:detomaso at poca.com
  6. mailto:detomaso-bounces at poca.com
  7. mailto:adin at frontier.net
  8. mailto:garth_rodericks at yahoo.com
  9. mailto:detomaso at poca.com
  10. mailto:adin at frontier.net
  11. mailto:adin at frontier.net
  12. http://www.jamestowndistributors.com/userportal/show_product.do?pid=
  13. mailto:detomaso-bounces at poca.com
  14. mailto:adin at frontier.net
  15. mailto:garth_rodericks at yahoo.com
  16. mailto:detomaso at poca.com
  17. mailto:adin at frontier.net
  18. mailto:adin at frontier.net
  19. http://www.jamestowndistributors.com/userportal/show_product.do?pid=56744
  20. mailto:DeTomaso at poca.com
  21. http://poca.com/mailman/listinfo/detomaso_poca.com

_______________________________________________

Detomaso Forum Managed by POCA

DeTomaso mailing list
DeTomaso at poca.com
http://poca.com/mailman/listinfo/detomaso_poca.com


   
-------------- next part --------------
   I've installed -8 from the pickup to the carb. Pickup tube runs thru
   the filler neck  Sometimes fill up are a bit slow. No problems running
   lean with Robbmc 500 pump and 623 HP.
   On Tuesday, November 18, 2014 11:26 PM, Garth Rodericks via DeTomaso
   <detomaso at poca.com> wrote:
     I didn't use an adapter to the tank drain either.  The 1/2" SAE Groco
     fuel valve threaded right into the metric bung on the bottom of the
     tank. I did have a fuel drip at first, but the added fuel safe joint
     compound to the threads on the valve, as well as an O-ring from
     O'Reilly Auto Parts and everything is sealed up tight.  And it sure
     came in handy to just close the fuel valve when I replaced my fuel
   pump
     with the RobbMC pump a few months ago - no mess, no need to drain the
     tank, no clamping the fuel line to stop flow to the pump, etc. Just
     turn the valve a quarter turn.  Also a great theft deterrent.  I just
     reach under there and give the valve a quarter turn when not using
   the
     car (or when staying at a hotel such as when I took it to the
   Ironstone
     Concours in September) and if someone tries to steal it, they won't
   get
     far.
       __________________________________________________________________
     From: Will Kooiman <[1]will.kooiman at gmail.com>
     To: Garth Rodericks <[2]garth_rodericks at yahoo.com>; Larry - Ohio Time
     <[3]Larry at ohiotimecorp.com>; "[4]adin at frontier.net"
   <[5]adin at frontier.net>
     Cc: "[6]detomaso at poca.com" <[7]detomaso at poca.com>
     Sent: Tuesday, November 18, 2014 4:16 PM
     Subject: Re: [DeTomaso] fuel pumps
     I did an AN 90-degree on the bottom of the tank to -8, to a mongo
     filter,
     to an electric pump.
     I know, youA^1re not supposed to run a filter before the pump.  Sue
     me.  I
     will clean it annually, and itA^1s a really big filter.
     I had a RobbM mechanical, but I recently switched to Webers, which
   like
     4-6psi.  I was going to run the Robb pump with a regulator to step it
     down
     to ~5psi, but all that crap on the front of the engine looked too red
     neck.
     At any rate, -8 is a nice size from the bottom of the tank to the
   fuel
     pump, and it doesnA^1t hang lower than the body/frame, so IA^1m not
     worried
     about it hitting anything.
     Another note is that the plug has metric threads that are very close
   to
     AN
     threads.  If you use the proper sized AN elbow, you donA^1t need an
     adapter.
     If I had the tank out, I might try a submersible electric pump.  But
     as-is, I am very happy with my results.
     On 11/18/14, 5:35 PM, "Garth Rodericks via DeTomaso"
     <[1][8]detomaso at poca.com>
     wrote:
     >  If I recall correctly, the welded bung in the bottom of the tank
     >  already extends at least 1/4" up into the tank. I'm not too
     concerned
     >  with crap from the bottom of the tank.  My tank was spotless
   inside
     >  before reinstalling the engine and I added a serviceable
   pre-filter
     >  between the tank and the pump and the obligatory fuel filter
   between
     >  the pump and carb as well.  The only way crap will get into the
   tank
     is
     >  if it comes from the gas pump at a station, and I'd rather the
   crap
     >  gets removed from the bottom of my tank and trapped by the filter
     than
     >  left to collect and build up to the point of causing recurring
     >  problems.
     >  My 2-cents. YMMV.
     >
   __________________________________________________________________
     >
     >  From: Larry - Ohio Time <[2][9]Larry at ohiotimecorp.com>
     >  To: 'Garth Rodericks' <[3][10]garth_rodericks at yahoo.com>;
     [4][11]adin at frontier.net
     >  Cc: [5][12]detomaso at poca.com
     >  Sent: Tuesday, November 18, 2014 12:56 PM
     >  Subject: RE: [DeTomaso] fuel pumps
     >  The only thing I mite add is to weld a small nipple (1\2" long)
   onto
     >  the end
     >  of the valve going into the tank so that you are not taking the
   fuel
     >  and
     >  crap off the bottom of the tank into the line.
     >  Larry (too much old crap) - Cleveland
     >  -----Original Message-----
     >  From: DeTomaso [mailto:[1][6][13]detomaso-bounces at poca.com] On
   Behalf Of
     Garth
     >  Rodericks via DeTomaso
     >  Sent: Tuesday, November 18, 2014 3:40 PM
     >  To: DeTomaso Mail List; [2][7][14]adin at frontier.net
     >  Subject: Re: [DeTomaso] fuel pumps
     >  One more comment...
     >  Note that this 90-degree valve is only 2.75" top to bottom, which
     means
     >  the
     >  installed height is less since it threads into the drain plug bung
     in
     >  the
     >  bottom of the
     >

   tank.http://images.jamestowndistributors.com/woeimages/hardware/large/5
     >  6744-
     >  1.jpg
     >  Therefore, there are no valves, hoses or fittings to dangle below
     the
     >  Pantera's chassis or frame rails to risk being broken off by speed
     >  bumps or
     >  stray road debris.
     >        From: Garth Rodericks <[3][8][15]garth_rodericks at yahoo.com>
     >  To: DeTomaso Mail List <[4][9][16]detomaso at poca.com>;
     "[5][10][17]adin at frontier.net"
     >  <[6][11][18]adin at frontier.net>
     >  Sent: Tuesday, November 18, 2014 12:35 PM
     >  Subject: fuel pumps
     >
     >  <<< Also, it seems any pump sucking through a tiny inlet will
   never
     be
     >  happy. Anyone done a -8 upgrade from the tank to the pump? >>>
     >    Not a -8, but I plumbed mine with 3/8" (-6).
     >  I went with the RobbMC pump and pre-filter on my 383 stroker
     Cleveland
     >  when
     >  the Holley mechanical pump began leaking.I plumbed it from the
     bottom
     >  of the
     >  tank with a 1/2" 90-degree stainless marine fuel valve from Groco.
     >

   [7][12]http://www.jamestowndistributors.com/userportal/show_product.do?
     pid=
     >  56744
     >  and 3/8" steel fuel line from the pump to the top of the engine
     where
     >  it
     >  goes through a fuel filter right before the carb inlet.
     >  The biggest issue, regardless of where you plumb your fuel line
   from
     is
     >  the
     >  restriction in the banjo fitting or elbow.  The stock banjo
   fitting
     on
     >  the
     >  top of the tank forces all the fuel through a small orifice that's
     >  about
     >  1/8" in diameter.  And many 90-degree fittings significantly
     restrict
     >  fuel
     >  flow as well.  I went with the 1/2" Groco Marine fitting so it
     wouldn't
     >  become the bottleneck that starves my engine for fuel.
     >  Cheers!Garth#4033
     >
     >References
     >
     >  1. mailto:[13][19]detomaso-bounces at poca.com
     >  2. mailto:[14][20]adin at frontier.net
     >  3. mailto:[15][21]garth_rodericks at yahoo.com
     >  4. mailto:[16][22]detomaso at poca.com
     >  5. mailto:[17][23]adin at frontier.net
     >  6. mailto:[18][24]adin at frontier.net
     >  7.

   >[19][25]http://www.jamestowndistributors.com/userportal/show_product.d
   o?pi
     d=56744
     >_______________________________________________
     >
     >Detomaso Forum Managed by POCA
     >
     >DeTomaso mailing list
     >[20][26]DeTomaso at poca.com
     >[21][27]http://poca.com/mailman/listinfo/detomaso_poca.com
   References
     1. mailto:[28]detomaso at poca.com
     2. mailto:[29]Larry at ohiotimecorp.com
     3. mailto:[30]garth_rodericks at yahoo.com
     4. mailto:[31]adin at frontier.net
     5. mailto:[32]detomaso at poca.com
     6. mailto:[33]detomaso-bounces at poca.com
     7. mailto:[34]adin at frontier.net
     8. mailto:[35]garth_rodericks at yahoo.com
     9. mailto:[36]detomaso at poca.com
     10. mailto:[37]adin at frontier.net
     11. mailto:[38]adin at frontier.net
     12.
   [39]http://www.jamestowndistributors.com/userportal/show_product.do?pid
   =
     13. mailto:[40]detomaso-bounces at poca.com
     14. mailto:[41]adin at frontier.net
     15. mailto:[42]garth_rodericks at yahoo.com
     16. mailto:[43]detomaso at poca.com
     17. mailto:[44]adin at frontier.net
     18. mailto:[45]adin at frontier.net
     19.
   [46]http://www.jamestowndistributors.com/userportal/show_product.do?pid
   =56744
     20. mailto:[47]DeTomaso at poca.com
     21. [48]http://poca.com/mailman/listinfo/detomaso_poca.com
   _______________________________________________
   Detomaso Forum Managed by POCA
   DeTomaso mailing list
   [49]DeTomaso at poca.com
   [50]http://poca.com/mailman/listinfo/detomaso_poca.com

References

   1. mailto:will.kooiman at gmail.com
   2. mailto:garth_rodericks at yahoo.com
   3. mailto:Larry at ohiotimecorp.com
   4. mailto:adin at frontier.net
   5. mailto:adin at frontier.net
   6. mailto:detomaso at poca.com
   7. mailto:detomaso at poca.com
   8. mailto:detomaso at poca.com
   9. mailto:Larry at ohiotimecorp.com
  10. mailto:garth_rodericks at yahoo.com
  11. mailto:adin at frontier.net
  12. mailto:detomaso at poca.com
  13. mailto:detomaso-bounces at poca.com
  14. mailto:adin at frontier.net
  15. mailto:garth_rodericks at yahoo.com
  16. mailto:detomaso at poca.com
  17. mailto:adin at frontier.net
  18. mailto:adin at frontier.net
  19. mailto:detomaso-bounces at poca.com
  20. mailto:adin at frontier.net
  21. mailto:garth_rodericks at yahoo.com
  22. mailto:detomaso at poca.com
  23. mailto:adin at frontier.net
  24. mailto:adin at frontier.net
  25. http://www.jamestowndistributors.com/userportal/show_product.do?pi
  26. mailto:DeTomaso at poca.com
  27. http://poca.com/mailman/listinfo/detomaso_poca.com
  28. mailto:detomaso at poca.com
  29. mailto:Larry at ohiotimecorp.com
  30. mailto:garth_rodericks at yahoo.com
  31. mailto:adin at frontier.net
  32. mailto:detomaso at poca.com
  33. mailto:detomaso-bounces at poca.com
  34. mailto:adin at frontier.net
  35. mailto:garth_rodericks at yahoo.com
  36. mailto:detomaso at poca.com
  37. mailto:adin at frontier.net
  38. mailto:adin at frontier.net
  39. http://www.jamestowndistributors.com/userportal/show_product.do?pid=
  40. mailto:detomaso-bounces at poca.com
  41. mailto:adin at frontier.net
  42. mailto:garth_rodericks at yahoo.com
  43. mailto:detomaso at poca.com
  44. mailto:adin at frontier.net
  45. mailto:adin at frontier.net
  46. http://www.jamestowndistributors.com/userportal/show_product.do?pid=56744
  47. mailto:DeTomaso at poca.com
  48. http://poca.com/mailman/listinfo/detomaso_poca.com
  49. mailto:DeTomaso at poca.com
  50. http://poca.com/mailman/listinfo/detomaso_poca.com


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