[DeTomaso] headers
Julian Kift
julian_kift at hotmail.com
Mon Jan 7 17:51:28 EST 2019
No mention of Pat Mical's headers, which I heard were some of the most unrestrictive.
Julian
________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Mike Drew via DeTomaso <detomaso at server.detomasolist.com>
Sent: Monday, January 7, 2019 2:45 PM
To: Charles Engles
Cc: detomaso at detomasolist.com; Rich Hoppe
Subject: Re: [DeTomaso] headers
Chuck,
The Mind Train headers have proven in dyno tests to be the best among the old-school solutions. They are now being made and marketed by PIM and are designed to bolt up to Euro GTS mufflers. I believe they fit quite well.
Hedmann used to make Pantera headers in both 2v and 4v variety, and 20 years ago I was riding with Larry Stock when we stopped by their factory and he took their whole inventory. I don’t know if he is still selling those, or if he has had them run a new batch since then? I think that was the only option for true 2v headers. Rich—if that is what you have, they are valuable due to their rarity and quality.
The GTS headers feature too-large primary pipes and too-small collectors. They give up a fair bit versus the other ones as a result.
I have heard a handful of anecdotal stories of problems with Wilkinson’s system, but apart from the paint burning off, the ones on Lori’s car fit almost perfectly (one muffler is angled sideways a bit and the pipe could stand to be bent) and have had no longevity issues, after about 3000 miles (which admittedly isn’t all that much).
Mike
Sent from my iPad
> On Jan 7, 2019, at 14:30, Charles Engles <cengles at cox.net> wrote:
>
> Dear Rich,
>
> I don't know that there is a consensus. IIRC, the Euro GTS
> headers-exhaust were considered the best although they lost a reported 50
> hp. The Hall Big Bores have a smallish collector and lose more hp. I am
> also aware of one cognoscente that finds the BB exhaust note unpleasant.
> Then....came the Wilkinson headers. Initially, they were reported to look
> good, sound good and have the lowest hp loss. For a while, they were the
> ticket. Then scattered reports of poor durability due to poor construction
> were filed on Pantera message boards.
>
> I have a '74 Pantera. The euro GTS headers hit the left
> engine mount on installation and were" fixed" in 1990 by the mechanic who
> installed them with a BFH. Years later I discovered that they *still* did
> not completely clear the engine mount. I also have a pair of Hall BB
> headers on the other 74 Pantera. The do not interfere with the engine
> mounts . Neither the GTS nor the HBB interfere with the gas tank shield.
>
> I suppose the easiest option is to buy a set of the euro GTS
> headers. The best and most expensive option would be to have a set of
> headers fabricated. Whatever manufactured headers you buy, CHECK the
> fitment carefully before the final exhaust gaskets and bolts are applied.
>
>
> Warmest regards, Chuck Engles
>
> -----Original Message-----
> From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
> Of Larry Weston
> Sent: Monday, January 07, 2019 8:26 AM
> To: Rich Hoppe; detomaso at detomasolist.com
> Subject: Re: [DeTomaso] headers
>
> Last experience with 2" GTS tri-wye pipe arrangement required serious gas
> tank heat shield movement for clearance. Hall Big Bores not so much, but
> they touched.
> ________________________________
> From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Rich
> Hoppe <richbhoppe at gmail.com>
> Sent: Sunday, January 6, 2019 4:53 PM
> To: detomaso at detomasolist.com
> Subject: [DeTomaso] headers
>
> I have a pair of headers for 2v heads is someone needs them.
>
> I need to purchase a new set for a 4v.
>
> Tri wye or big bore.
> What is the consensus?
> Thanks
>
> _______________________________________________
>
>
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-------------- next part --------------
No mention of Pat Mical's headers, which I heard were some of the most
unrestrictive.
Julian
__________________________________________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
Mike Drew via DeTomaso <detomaso at server.detomasolist.com>
Sent: Monday, January 7, 2019 2:45 PM
To: Charles Engles
Cc: detomaso at detomasolist.com; Rich Hoppe
Subject: Re: [DeTomaso] headers
Chuck,
The Mind Train headers have proven in dyno tests to be the best among
the old-school solutions. They are now being made and marketed by PIM
and are designed to bolt up to Euro GTS mufflers. I believe they fit
quite well.
Hedmann used to make Pantera headers in both 2v and 4v variety, and 20
years ago I was riding with Larry Stock when we stopped by their
factory and he took their whole inventory. I don't know if he is still
selling those, or if he has had them run a new batch since then? I
think that was the only option for true 2v headers. Rich--if that is
what you have, they are valuable due to their rarity and quality.
The GTS headers feature too-large primary pipes and too-small
collectors. They give up a fair bit versus the other ones as a result.
I have heard a handful of anecdotal stories of problems with
Wilkinson's system, but apart from the paint burning off, the ones on
Lori's car fit almost perfectly (one muffler is angled sideways a bit
and the pipe could stand to be bent) and have had no longevity issues,
after about 3000 miles (which admittedly isn't all that much).
Mike
Sent from my iPad
> On Jan 7, 2019, at 14:30, Charles Engles <cengles at cox.net> wrote:
>
> Dear Rich,
>
> I don't know that there is a consensus. IIRC, the Euro
GTS
> headers-exhaust were considered the best although they lost a
reported 50
> hp. The Hall Big Bores have a smallish collector and lose more hp.
I am
> also aware of one cognoscente that finds the BB exhaust note
unpleasant.
> Then....came the Wilkinson headers. Initially, they were reported to
look
> good, sound good and have the lowest hp loss. For a while, they were
the
> ticket. Then scattered reports of poor durability due to poor
construction
> were filed on Pantera message boards.
>
> I have a '74 Pantera. The euro GTS headers hit the left
> engine mount on installation and were" fixed" in 1990 by the mechanic
who
> installed them with a BFH. Years later I discovered that they
*still* did
> not completely clear the engine mount. I also have a pair of Hall
BB
> headers on the other 74 Pantera. The do not interfere with the
engine
> mounts . Neither the GTS nor the HBB interfere with the gas tank
shield.
>
> I suppose the easiest option is to buy a set of the euro
GTS
> headers. The best and most expensive option would be to have a set
of
> headers fabricated. Whatever manufactured headers you buy, CHECK the
> fitment carefully before the final exhaust gaskets and bolts are
applied.
>
>
> Warmest regards, Chuck Engles
>
> -----Original Message-----
> From: DeTomaso [[1]mailto:detomaso-bounces at server.detomasolist.com]
On Behalf
> Of Larry Weston
> Sent: Monday, January 07, 2019 8:26 AM
> To: Rich Hoppe; detomaso at detomasolist.com
> Subject: Re: [DeTomaso] headers
>
> Last experience with 2" GTS tri-wye pipe arrangement required serious
gas
> tank heat shield movement for clearance. Hall Big Bores not so much,
but
> they touched.
> ________________________________
> From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf
of Rich
> Hoppe <richbhoppe at gmail.com>
> Sent: Sunday, January 6, 2019 4:53 PM
> To: detomaso at detomasolist.com
> Subject: [DeTomaso] headers
>
> I have a pair of headers for 2v heads is someone needs them.
>
> I need to purchase a new set for a 4v.
>
> Tri wye or big bore.
> What is the consensus?
> Thanks
>
> _______________________________________________
>
>
> Detomaso Email List is not managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> DeTomaso at server.detomasolist.com
> [2]http://server.detomasolist.com/mailman/listinfo/detomaso
>
> To manage your subscription (change email address, unsubscribe, etc.)
use the links above.
>
> Members who post to this list grant license to the list to forward
any message posted here to all past, current, or future members of the
list. They also grant the list owner permission to maintain an archive
or approve the archiving of list messages.
_______________________________________________
Detomaso Email List is not managed by POCA
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