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What's stock untuned boost limit?

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Old Nov 28, 2009, 03:11 AM
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What's stock untuned boost limit?
My car gets a bit of overboost once in a while, hitting 22-23psi, and when it does it cuts hard. Normal? I'm getting tuned next Friday anyway lol.
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Old Nov 28, 2009, 09:04 AM
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the tune should help...it's because of your un-tuned exhaust modifications for the most part
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Old Nov 28, 2009, 10:28 AM
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i could only do about 21 psi when my car wasnt tuned and it knocked like crazy untuned
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Old Nov 28, 2009, 11:03 AM
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My car must be tuned then. When I purchased it from the dealer it was running about 26-28 psi without any cut out at all. I guess theres not really any way to find out for sure if it has been tuned though.
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Old Nov 28, 2009, 03:27 PM
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if youre running 26-28 psi and your car is not bucking like a bull then the ecu has been messed with somehow
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Old Nov 28, 2009, 05:04 PM
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good exhaust,good tune with healthy turbo 30 cold and 28 hott
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Old Nov 28, 2009, 07:54 PM
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Ya, i figured that something was done with the ecu for not having fuel cut or anything at that psi level. The problem is im not sure what. lol.
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Old Nov 28, 2009, 08:35 PM
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Originally Posted by SLYDOGRACING
good exhaust,good tune with healthy turbo 30 cold and 28 hott
not the smartest boost level to run on pump gas
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Old Nov 28, 2009, 08:53 PM
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get some tools to monitor your car, mitsulogger or evoscan, cable and wideband. you will be happier knowing that your motor is running correctly
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Old Nov 29, 2009, 09:54 AM
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Yea if your running that high i would say it has been tuned.
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Old Nov 29, 2009, 09:55 AM
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Originally Posted by EvoJoeIX
not the smartest boost level to run on pump gas
I agree!
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Old Nov 29, 2009, 01:00 PM
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FOr daily use i'd say keep it anywhere from 15-17psi. And thats for DD. If you had to try to get it tuned at around 21-22psi. Play it safe man. Your not running Any alch. or meth And your on Pump gas.
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Old Nov 29, 2009, 01:08 PM
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get it tuned at about 24 psi and call it a day
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Old Nov 29, 2009, 01:10 PM
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Yeah, I thought it was something like that, it only does it in 3rd or 4th, full WOT, anything less than full throttle, and it pulls fine. Tune T-minus 5 days.
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Old Nov 29, 2009, 02:12 PM
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Originally Posted by F0RSAKEN
Yeah, I thought it was something like that, it only does it in 3rd or 4th, full WOT, anything less than full throttle, and it pulls fine. Tune T-minus 5 days.

Just don't get on it too hard until you get it tuned. Your fuel and timing maps are most likely in need of help.
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