what header's will give me most torque.......
27 February 2007, 12:16 AM
#1
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what header's will give me most torque.......
.... i am after some advice.
i want to find out what header set-up will give me the biggest torque gain.
either;
tubular s/s un-equal lenght header's
tubular s/s equal lenght header's
standard header's ported
all would be heat wraped obviously.
thank's Ben
i want to find out what header set-up will give me the biggest torque gain.
either;
tubular s/s un-equal lenght header's
tubular s/s equal lenght header's
standard header's ported
all would be heat wraped obviously.
thank's Ben
27 February 2007, 02:24 AM
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equal length probaly when mapped properly but im goin 4 un equal ones from zen performance very soon, dont think there will be much in it unless u r goin 4 serious power
27 February 2007, 02:27 AM
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the gain of equal vs unequal is an unproven one on scoobs. Best stick to the ones known to cause no issues. These are either the gruppe-s (2 bolt up-pipe) and gt-spec (3 bolt up-pipe). I have the gruppe-s and in 2 years have never given me any trouble.
27 February 2007, 07:22 AM
#5
Had my 2 bolt Gruppe S on for 3 years now @ 1.6 bar and all is perfect, inc the flex up-pipe. Buy quality once.
As to best for torque at the sacrifice of top end, I think you will find the ported stock unit's best.
You can get a set from David at Welcome to the API website
Graham
As to best for torque at the sacrifice of top end, I think you will find the ported stock unit's best.
You can get a set from David at Welcome to the API website
Graham
27 February 2007, 11:04 AM
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yeah i have hurt the stnd header's ported are good for torque,
i want idealy to have more torque than bhp, for how i use and drive my car that will be better suited to me. plus as i'm on a budget etc huge bhp is out of my reach.
i want idealy to have more torque than bhp, for how i use and drive my car that will be better suited to me. plus as i'm on a budget etc huge bhp is out of my reach.
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27 February 2007, 10:48 PM
#11
Any mod on it's own will be compromised, bring a few all to gether and the effect can be very good, but you will need about £1000 to really feel it.
Maybe 5% increase in everything.
Graham
Maybe 5% increase in everything.
Graham
27 February 2007, 11:03 PM
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well i have a 3'' straight through exhaust, and will have a green cotton pannel filter with direct cold air feed from the front bumper, will up the boost to 1.1bar along with FPR and 225 fuel pump.
all on a my95 wrx with a Z4
and the cast header's and modded up pipe
all on a my95 wrx with a Z4
and the cast header's and modded up pipe
Last edited by crazy ass; 27 February 2007 at 11:08 PM.
28 February 2007, 07:12 AM
#13
That is a good basis to start from.
An Apexi FC would release more boost and control the fuel/ignition well.
You will then get the low/mid range torque you want for a good drivable road car.
An Apexi FC would release more boost and control the fuel/ignition well.
You will then get the low/mid range torque you want for a good drivable road car.
i'm going to be having a semi closed sti block going in soon but i will keep you posted.
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