Alloy tubing inlet manifold for 01-??
#1
Alloy tubing inlet manifold for 01-??
Anyone seen or bought a alloy tubing (larger) inlet manifold for their WRX?
If so, how much did it cost and did it have any of the brackets etc to fit other parts and pipes to it like the oe manifold?
If so, how much did it cost and did it have any of the brackets etc to fit other parts and pipes to it like the oe manifold?
#2
Can't help you very much I'm afraid but a Canadian company called Magnus Motorsport is manufacturing an alloy manifold which they claim gives 35HP. You can see a picture here
http://www.magnusmotorsports.com/STI_info.htm
It has been discussed a little on NASIOC so a quick search on there may provide a little more info. Price is circa US $980 / CA $1200.
http://www.magnusmotorsports.com/STI_info.htm
It has been discussed a little on NASIOC so a quick search on there may provide a little more info. Price is circa US $980 / CA $1200.
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#9
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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Andy.. I can guess what your up to
Any pics, as I was just about to set about a 97/98 but most likely in a different way to you!
Any pics, as I was just about to set about a 97/98 but most likely in a different way to you!
#10
Thats interesting, didn't think they'd be out of balance, more the internal surface isn't smooth (being a cast)....
Cost of alloy tube above is crazy though. Wonder if its possible to get them balanced and gas flowed in some way...?
Cost of alloy tube above is crazy though. Wonder if its possible to get them balanced and gas flowed in some way...?
#11
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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It is possible...
you extrude hone them, Richard (Dowser) on 22b did his this way... extrude hone in the uk arent interested.
David
you extrude hone them, Richard (Dowser) on 22b did his this way... extrude hone in the uk arent interested.
David
#13
I have a <97 manifold modified and fitted to a >99 set of heads. It is a job a I can probably do, but it would cost about £300 including the adaptor plates (different stud layout on later heads).
Paul
Paul
#18
Originally Posted by Absolute Shower
I'm thinking alloy tubing as its what is used on the prodrive rally car...and it allows much bigger diameter piping...equals more power and equal length tubes.
Paul
#19
Just the man...Paul, are you available sometime in the future to do some head work on 02 WRX to suit 2.5L? Also, do you polish inlet manifolds and ports?
My email is anthonyplumley@its.hoarelea.com
Oh, I've seen a prodrive rally car with what looks like alloy piping on the inlet manifold...oh well.
My email is anthonyplumley@its.hoarelea.com
Oh, I've seen a prodrive rally car with what looks like alloy piping on the inlet manifold...oh well.
#21
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Two almost identical spec cars.... Only major differences were HKS headers/H+S headers and one has phase 1.5 manifold and one has phase 1.
One car made 630ftlb the other made 560ftlb, boost for boost.
Rob
One car made 630ftlb the other made 560ftlb, boost for boost.
Rob
#24
Subaru Tuning Specialist
Join Date: Jun 2002
Location: 7.74 @179 mph 1/4 mile - road legal
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Originally Posted by Pavlo
The stock runners are more than large enough, and you will not get any more power by enlarging them.
Paul
Paul
Andy
#25
Originally Posted by Andy.F
However the stock runners are all different internal areas through out the run and the plenum is far too small for optimum power. On the 99 manifold one runner reduces to 70% of the CSA of the others and some of the bends inside radius' need to be seen to be believed
Andy
Andy
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