Fitted a boost guage at the weekend, register about 10-11 psi when pushing hard.

Does this sound about right.

I know a standard 3-door cossie is about 9.8psi, but do not have any figures for a 94' WRX

Cock on mate!!!!

Should be .8 bar, which is 11.7...... psi http://bbs.scoobynet.co.uk/biggrin.gif

Shaun

Remember its warm at the moment (hence less boost), so your figures sound right!!

[This message has been edited by Shaun (edited 07 August 2000).]

That surprises me a little... I have a UK-spec car with "215ps" (but reckoned to be a little more really) and that pulls up to about 15psi after a bit of hard driving, even in the warm weather...

Any explanations, oh knowledgeable peoples?

Richard

hmmm,

so many factors affect this - but unmodified uk car is normally 12 psi peak with 11 held - rising to 14peak/12 held with easier breathing + cats removed etc....

wrx would normally be about 14/12 psi -

with a downpipe and better filter etc. you could see 16/14 - sti slightly more - bear in mind that most mechanical gauges are not that accurately calibrated - a good tuning centre will have a nice big gauge which is probably more accurate - get a check done sometime - but be careful if they 'tee-in' to the turbo pipework that they use a cable tie to properly secure the pipes afterwards.

as already mentioned above - cold days = more boost.

don't get too hung up on this though 11 psi does not necessarily mean your wrx is poorly.

- cheers,

Paul W (16,16 fwiw)

Yeah, it's true I have an uprated air filter which may be worth another 0.5psi at most. Other than that it's perfectly standard. I thought the normal rating was 13.5psi for a stock UK car?

Cheers
Richard

MY00 No Mods.
Peak 14-14.5 psi, drops to about 12-13 psi.