estimate bhp
ive got a 04 wrx ppp i have a decat downpipe and system, what i want to know is i have bought a cheapass vf34(£385 new woohoo) and a frontmount intercooler. once these are fitted with remap what kind of power am i looking at reckon this will be quicker than the wifes 56 sti
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Originally Posted by easyscoob
(Post 6613139)
ive got a 04 wrx ppp i have a decat downpipe and system, what i want to know is i have bought a cheapass vf34(£385 new woohoo) and a frontmount intercooler. once these are fitted with remap what kind of power am i looking at reckon this will be quicker than the wifes 56 sti
£385 for a new VF34????? Is it from Flea bay??? With those mods, your car should be quicker that the wife's STi, but why not just upgrade to an Sti too?? Ns04 |
Maybe 340bhp. But then maybe not. :D
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ive got 332/312 on my 03 wrx
td05 decat fmic sti injectors and fuel pump |
Originally Posted by easyscoob
(Post 6613139)
reckon this will be quicker than the wifes 56 sti
Expect around 300bhp, you will be limited by the injectors on your WRX. |
new scoob, question, honest one. How do you port headers? They're just tube, unlike some cars with cast exhaust manifolds, there's really not much you can do to tubing...
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To port headers all u are doing basically is opening the ends that match up againt the heads on the engine, can be done with a dremel.
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Originally Posted by stormsubaru
(Post 6635681)
new scoob, question, honest one. How do you port headers? They're just tube, unlike some cars with cast exhaust manifolds, there's really not much you can do to tubing...
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I see, i had just never heard of porting headers before. I thought he meant maybe porting the heads and it was just a typo. I've built quite a few american v8's and hadn't come across that, but it's probably because i've always replaced the existing cast manifolds with brand new headers. thanks guys.:thumb:
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Porting the headers on a twin scroll car is rather more complex, as they are tube, but the end flanges and joins are welded from the inside.
We take them off, weld them on the outside after stripping off all the shielding. Then we remove all the welding on the inside of the pipes and flow out the flanges so that there are no restrictions all the way to the turbo Then wrap in heatproof material refir and watch the spool up really sharpen. Quite complex compared to the rather easier old cast iron style but it still carries all the benefits. David APi |
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