How much psi have a stock wrx, and how much can handle it????

 

A stock WRX have 13.5 psi. I think all WRX's can handle it.

 

some push 20psi+ with bigger turbos and supporting mods on the 2.0L

I wouldnt expect it to last long at that level though

 

there are some stock-turboed wrxs pushing 19+ psi, daily-driven. However, 15-16 psi would probably be a safer level.

 

i run a vf-34 with all supporting mods with cobb e.m. it pushes 18 psi max. it is a daily driver and i get the same gas milage as i did stock.

 

To answer your question in full, with a proper boost conrtol you can push a constant 16.5 psi right below fuel cut-off (17 psi). Some people will claim that a stock WRX with BC (boost control) can handle up to 18 psi with no affects. I own an Apexi AVC-R BC and love it. You can control boost in every gear to fit the curve. Electronic over manual no doubt. Just for kicks I think the stock WRX runs 9.5 psi in 1-3rd and 14.5 in 4th and 5th. Not 100% on that though.

 

i believe it is 13.5 psi max in 4th and 5th. i know i don't push any boost in first gear and didn't when the car was stock either.

 

19+ on a stock turbo?

 

i believe 19 psi is the max before you start running into heat problems with the turbo.

 

Stock is 13.5psi - I recently installed my boost gauge, and it only says I am getting 10 psi Max, and my pressure is at 16.

Is the 16 pressure reading normal?

 

i got a ecutek from vishnu, and it runs 16psi (or so they say)

 

It should. Shiv dyno tuned my wagon, my boost will peak at around 16-17 psi wot in 4th on the freeway. This is with pulled timing.

 

I meant my vacuum pressure sits at 16-18

 

i have an 03 wrx and i my boost spools up to 14psi and go down to 13.5psi from 1st to 5th gears. i'm stock everything except for the deleted snorkus. i have an autometer boost gauge, if that matters they all should the same tho.

chris

 

Yeah, I need to get this looked at soon