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How much psi

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Old 09-13-2005, 03:25 PM
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How much psi
How much psi have a stock wrx, and how much can handle it????
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Old 09-14-2005, 10:01 AM
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Originally Posted by Gomy's_WRX
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.
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Old 09-14-2005, 11:26 AM
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some push 20psi+ with bigger turbos and supporting mods on the 2.0L

I wouldnt expect it to last long at that level though
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Old 09-14-2005, 07:42 PM
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there are some stock-turboed wrxs pushing 19+ psi, daily-driven. However, 15-16 psi would probably be a safer level.
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Old 09-14-2005, 11:54 PM
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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.
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Old 09-15-2005, 12:50 AM
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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.
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Old 09-16-2005, 12:14 AM
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Car Info: '03 Wrx w/vf-34, sti pinks,tbe, 2.5l cobb block
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.
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Old 09-16-2005, 01:10 AM
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19+ on a stock turbo?
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Old 09-19-2005, 01:03 AM
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i believe 19 psi is the max before you start running into heat problems with the turbo.
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Old 09-19-2005, 09:47 AM
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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?
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Old 09-19-2005, 12:08 PM
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i got a ecutek from vishnu, and it runs 16psi (or so they say)
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Old 09-19-2005, 01:11 PM
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Originally Posted by truWRXtacy
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.
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Old 09-19-2005, 03:45 PM
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I meant my vacuum pressure sits at 16-18
Last edited by unstble; 10-04-2005 at 03:29 PM.
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Old 10-04-2005, 03:14 PM
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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
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Old 10-04-2005, 03:30 PM
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Yeah, I need to get this looked at soon
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