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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
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Seems like it would not be hard to make a mini heat exchanger by making a tube or box around only the secondary pipe. There is lots of room.
Some one could even make up a kit. Another idea would be the have the secondary pipe turn further away from the motor and add a sport cat to each side. Optionally, could add a mini heat exchanger to the side or off the end of the cats. Purrrrrrfict. ] 
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05-01-2008, 04:09 PM
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The OBX headers are the same inner width as the Euro pipes on 3.2 ROW / Euro engines, correct? If so, there is really no benefit going with the OBX headers, correct?
TIA, Scott
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72 911 T Targa in Orient Red / Black - more like a 85 Euro RS IROC now - 85 Euro 3.2 with x-faktory EFI ITB + SSI + Dansk, 915 + Wevo, flares + IROC bumpers + duck tail, RS door panels, Corbeau LG1 microsuede seats, Speedware harness bar + drop links + Scroth DOT harnesses, adj Tarett sways, sport shocks, alloy trailing arms, Elephant Racing oil lines + spring plates + bushings, RSR Rota Foxes + Bridgestone S-04 PP, 2450 lbs |
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05-02-2008, 09:38 AM
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Location: Northern CA
Posts: 4,703
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doesn't the Euro 3.2 have the pipe that runs back by the transmission... OBX is like a backdated 911 header... if that is the case you gain not having a messed up and long exhaust path...at least on the one side.
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05-02-2008, 09:51 AM
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New Thread?
I keep coming back here thinking someone's posted about SW chips, but it seems to be about exhausts, and has been for quite some time now.
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Black Widow Blk on Blk '86 911 "...the secret to Porsche: we do things others cannot" |
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05-02-2008, 10:44 AM
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Quote:
Incorrect... If that were actually true, the Euro exhaust manifolds would be highly sought after...
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'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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05-02-2008, 12:36 PM
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Join Date: Jan 2004
Location: Sacramento
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Factory Euro/USA heat exchangers (same-same)are larger than SSI's in side. I think the OBX headers are biger inside yet but not sure.
SSI's and the OBX have equal length primary tubes. The SSI's I belive have a sweet spot aroung 2500rpm's on a 3.2 where they are very efficent. Factory heat exchangers are not really a problem, it is mostly the Cat that is. Take off the cat and you should get close to Euro HP numbers. Euro just has a bit more compression. If both are chiped for US fuel, the US should be as fast. At least that is what I want to belive. |
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05-02-2008, 02:01 PM
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my targa
2017 Porsche Macan GTS
Black Widow
