 GT4 Turbo Boost Problem |
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 Aug 24, 2006 - 2:03 PM
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 Enthusiast  Joined Mar 20, '06 From Ireland Currently Offline Reputation: 0 (0%)  |
I have nocticed over the past few weeks that my GT4 doesnt seem to be boost as much. It doesnt seem as quick off the line as it use to be! Has anyone ever had something like this before? If any one can shed some light would be a great help? Is the turbo on the way out?
I put 18" tenzo r wheels on the car but im sure this isnt the cause of it. Thanks Alan |
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Aug 24, 2006 - 2:06 PM
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 Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
the turbo is almost NEVER to blame for boosting issues or the car feeling slower. normally its caused by a boost or vac leak. you can make a boost leak tester (google it) and find any leaks you might have.
but, adding heavy 18s on the car, might also make it slower. This post has been edited by lagos: Aug 24, 2006 - 2:07 PM -------------------- 15PSI - 30MPG - Megasquirt Tuned
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Aug 24, 2006 - 2:13 PM
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Enthusiast Joined Mar 20, '06 From Ireland Currently Offline Reputation: 0 (0%) |
I remeber when i got the 18's about 3 months ago it was still quick as hell. Then I started to notice it didnt seem as fast at taking off as before. I just thought i was getting use to the turbo boost but now im thinking something got to be wrong...
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Aug 24, 2006 - 2:40 PM
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Enthusiast Joined Jan 9, '05 From Under the car Currently Offline Reputation: 0 (0%) |
Have you done an error code check??????...some error codes will cause the car to reduce boost to help prevent damage to the engine.
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Aug 24, 2006 - 2:45 PM
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Enthusiast Joined Nov 9, '03 From Dayton, OH Currently Offline Reputation: 2 (100%) |
hook up a boost gauge and see how much boost your making
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Aug 25, 2006 - 10:19 AM
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Enthusiast Joined Mar 20, '06 From Ireland Currently Offline Reputation: 0 (0%) |
I have boost gauge hooked up to it and i get about 1 bar pressure or so. Whats the seem like?
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Aug 25, 2006 - 5:36 PM
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Enthusiast Joined Jan 9, '05 From Under the car Currently Offline Reputation: 0 (0%) |
1 bar is slightly over the stock boost level
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Aug 25, 2006 - 10:01 PM
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Enthusiast Joined Jun 19, '06 From Portland, OR Currently Offline Reputation: 1 (100%) |
Hey, I was wondering if you could make this question anymore vague?
-------------------- 87 4runner DLX 22re, 5spd, 4.30gr, 4" lift, 30" tires, HID w/ Projectors, 6spkr + sub, custom exhaust, 94 celica leather seats, SR5 gauge cluster and clinometer. Future engine swap... possibly a 2jzge.
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Aug 26, 2006 - 9:39 PM
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 Enthusiast Joined Oct 29, '03 From Gosport, Hampshire, UK Currently Offline Reputation: 0 (0%) |
stock boost level should be at 0.9 bar.
have you checked the exhaust system for any leaks? -------------------- |
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