WASTEGATE PROBLEMS I THINK
06-12-2006, 05:27 PM
#1
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WASTEGATE PROBLEMS I THINK
OKAY SO I GOT A 95GSX AND THE TUBO IS BIGGER THAN A 14B BUT ITS GOT THE 34MM WASTEGATE LIKE ON A 14B , but the thing is i took the profec b out of my car cause it wouldnt let me raise or lower boost replaced it with a greddy manuel hooked up the vacum line to the nipple on the wastegate still has the same problems .....only 9-11 psi still , SO THEN I UNPLUGED the vacum line from the wastegate nipple to see if it would run 35 psi like it should with open wastegate and it only spiked 15 and 20 sometimes and when i get full throttle on it at like 4500 rpm's or 5500 its like it wants to lose boost and the car studders......but if i stay half throttle it pulls good with a little studder
now i do however still have stock exhaust with a cat converter and i was wondering if maybe that would be an issue witch i dont know why it would
but my guess is the wastegate is bad
if any1 can help me with ideas it would be greatly appreciated
also i checked for any boost leaks and i cheked it good and everything looks good NO LEAKS
now i do however still have stock exhaust with a cat converter and i was wondering if maybe that would be an issue witch i dont know why it would
but my guess is the wastegate is bad
if any1 can help me with ideas it would be greatly appreciated
also i checked for any boost leaks and i cheked it good and everything looks good NO LEAKS
06-12-2006, 06:14 PM
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Re: WASTEGATE PROBLEMS I THINK
errr well, I would't recommend boosting 20 psi on the stock fuel pump/etc and with no way to tune it..
It's probaly pulling timing like a mofo b/c your detonating.
Turn the boost back down to below 15 psi...
It's probaly pulling timing like a mofo b/c your detonating.
Turn the boost back down to below 15 psi...
06-12-2006, 07:12 PM
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Re: WASTEGATE PROBLEMS I THINK
Be careful dude, ur gonna blow your motor man, u can't just mess with this kinda stuff bro. 20psi is a lot of boost to be running when ur not tuning it at all.
06-13-2006, 12:32 AM
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Re: WASTEGATE PROBLEMS I THINK
what kinda of wastegate u got? can u replace the spring? id turn it all the way down at an see if it acts up. then slowley go from there. but then again..i hardly know what im talking about when it comes to turbos. :P
06-13-2006, 05:37 AM
#6
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Re: WASTEGATE PROBLEMS I THINK
either the wastegate actuator is bent/bad (i couldnt find the one i had) or the exhaust side of the turbo is cracked or theres a exhaust leak somewhere
Last edited by g S x; 06-13-2006 at 05:52 AM.
06-13-2006, 11:50 AM
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Re: WASTEGATE PROBLEMS I THINK
You have a loose nut behind the wheel and under the hood. Fix that and your car will run right again.
At the rate you're going, you might want to start pricing new motors, and be prepared do build a couple. you can't jsut set boost to whatever. you need to build a car properly.
At the rate you're going, you might want to start pricing new motors, and be prepared do build a couple. you can't jsut set boost to whatever. you need to build a car properly.
06-13-2006, 12:19 PM
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Re: WASTEGATE PROBLEMS I THINK
Originally Posted by HighPSI TSi Guy
You have a loose nut behind the wheel and under the hood. Fix that and your car will run right again.
At the rate you're going, you might want to start pricing new motors, and be prepared do build a couple. you can't jsut set boost to whatever. you need to build a car properly.
At the rate you're going, you might want to start pricing new motors, and be prepared do build a couple. you can't jsut set boost to whatever. you need to build a car properly.
I wouldn't imagine he still has the BCIS intact?
06-13-2006, 02:15 PM
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Re: WASTEGATE PROBLEMS I THINK
Originally Posted by HighPSI TSi Guy
You have a loose nut behind the wheel and under the hood. Fix that and your car will run right again.
At the rate you're going, you might want to start pricing new motors, and be prepared do build a couple. you can't jsut set boost to whatever. you need to build a car properly.
At the rate you're going, you might want to start pricing new motors, and be prepared do build a couple. you can't jsut set boost to whatever. you need to build a car properly.
and ask around my car has been built properly
06-13-2006, 02:33 PM
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Re: WASTEGATE PROBLEMS I THINK
ITS got plenty of fuel a 255 wlboro fp and a safc to tune it ive messed with the safc in any way imaginable and it still runs the same but its like im always on the rich side and if i lean it out it still does the same when i hook the maual boost controller back up on the wastegate it only allows the turbo to get 9-10 psi and it wont allow me to go up on boost or down with the manual BC but the only thing i could think of is that the wastegate is getting stuck , my spark plugs do need to be changed but the car seems fine when driving and idle , i do have a very hard to notice hairline crack in exhaust housing but nothing major you could barley notice it