how much PSI

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03-26-2004, 08:44 PM

philioWRXman

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how much PSI

how much PSI does the new STi putout stock?

sorry for the noob question.

03-26-2004, 08:54 PM

Kevin M

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~14.5 psi

03-28-2004, 10:10 AM

Rocket Man

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burp.

Last edited by Rocket Man; 05-21-2005 at 09:30 AM.

03-28-2004, 12:18 PM

Mole177

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12.5 bars??????

you're boosting 181.25lbs!

03-28-2004, 08:07 PM

Rocket Man

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oops. Sorry. About .12

03-29-2004, 12:31 AM

Kevin M

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Quote:

Originally posted by Rocket Man
oops. Sorry. About .12

That's kPa not bar.

.12 bar is less than 2 psi.

.12 kPa =~16 psi.

Quote:

Originally posted by Rocket Man
at 14.5 pounds, how much boost can you max out at? I can't bring it above 12.5 bars. Normal?

Not sure what you mean. 14.5 psi is the measurement for boost... that's what it is, 14.5 pounds. I would guess that max safe boost on the VF39 is ~15.5-16 psi, but I don't have that turbo personally.

03-29-2004, 09:05 PM

Rocket Man

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Quote:

Originally posted by BAN SUVS
That's kPa not bar.

.12 bar is less than 2 psi.

.12 kPa =~16 psi.

Not sure what you mean. 14.5 psi is the measurement for boost... that's what it is, 14.5 pounds. I would guess that max safe boost on the VF39 is ~15.5-16 psi, but I don't have that turbo personally.

thanks. How does kPa translate to psi and bars?

(sorry we don't have a nobie forum).

03-30-2004, 08:44 PM

raje7

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if you noticve where you start the boost from on the negative side youll see why same on mine alli can figure

03-30-2004, 09:07 PM

asianboy101

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you will max boost at 18.6, then fuel cut will kick in and you will get an cel. assuming you have an sti

04-01-2004, 06:50 PM

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Mach5WRX

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I make around 1.1 bar

04-03-2004, 05:32 AM

#11

Hummer

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My max boost with the Xede is 16.5 psi. Detonation generally occurs over 17 psi.

04-06-2004, 08:14 AM

#12

Rick99gt

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I am currently looking into adding a dual stage boost controler to my wifes xt for when I drive it on the weekends. Since the engines are both 2.5, Would it be safe to bump it to 16lbs psi, I beleave stock is 11.5. Only other mods i plan on doing is k&n and silencer removed

thanks
Rick C

04-08-2004, 10:11 PM

#13

Kevin M

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Quote:

Originally posted by Rick99gt
I am currently looking into adding a dual stage boost controler to my wifes xt for when I drive it on the weekends. Since the engines are both 2.5, Would it be safe to bump it to 16lbs psi, I beleave stock is 11.5. Only other mods i plan on doing is k&n and silencer removed

thanks
Rick C

No, that is very not safe. The XT turbo is much too small to go that high on boost. If you can't afford a reflash, don't mess with boost on a car as sophisticated as a modern Subaru.