turbo going bad?

[jongreene]

whenever i floor it, it feels like im not getting anymore power, my gauge reads 15 psi like it should, but i feel like im getting more power if i just steadily increase the gas/boost, could it be a huge boost leak or my wastehate staying open? help.....

 

[EclipseTrbo420A]

Yes you could have a bad boost leak. check the 2 things you mentioned and report back.

 

[jongreene]

will do..thanks for the fast response

 

[highboostintsi]

how many miles are on the car? if the 2 probs above check out, check for shaft play.

 

[jongreene]

113,000 and some odd numbers

 

[kottyking]

Stock boost guage or aftermarket?

 

[jongreene]

i have aftermarket boost controller along with gauge

 

[EclipseTrbo420A]

i have aftermarket boost controller along with gauge

Heres acouple more things to look/listen for. Smoke out the rear is a big one and also a scream/whine sound as throttle progresses. Let us know.

 

[jongreene]

ive seen a puff of black once running rich obviously.. but its not often..and what kind of whine/scream do you mean...i can hear the turbo really well but it doesnt really sound like anything out of the ordinary..thanks for the help

 

[vaboys2ndgen]

Heres acouple more things to look/listen for. Smoke out the rear is a big one and also a scream/whine sound as throttle progresses. Let us know.

i got this problem on my automatic 96 gsx

 

[EclipseTrbo420A]

i got this problem on my automatic 96 gsx

Does the car feel strong or is it really slugish?

 

[EclipseTrbo420A]

ive seen a puff of black once running rich obviously.. but its not often..and what kind of whine/scream do you mean...i can hear the turbo really well but it doesnt really sound like anything out of the ordinary..thanks for the help

Do the boost leak test, Im betting thats your problem.

 

[jongreene]

me too...but yeah the car feels really strong until i get on it hard

 

[jongreene]

oops that was to the other guy .. well if you wanted to know on my car there you have it

 

[majik2k5]

A simple test to see if your wastegate is sticking open is to just take a compressor and pressurize the vacuum lines for the wastegate. You should see it open and close immediately. Normally when your wastegate sticks open your spool up times will be incredibly horrible.

 

[jongreene]

alright thanks alot, that must not be it , i can hit 15 psi in no time

 

[vaboys2ndgen]

Does the car feel strong or is it really slugish?

if i ease into the gas pedal its sometimes slugish and sometimes just fine.


the boost gauge will read 11-12psi but the car wont be pulling at all. its spooling just not going anywhere...


then sometime everything will be just fine.

 

[jongreene]

same here sometimes....normally when cold

 

[EclipseTrbo420A]

You guys both need to do boostleak tests first. I would not keep getting on it till you did. Also check your wastegate arms for eratic behavior.

 

[dalatinromeo]

Do what he said. ^^^

 

[vaboys2ndgen]

will get done asap.. gotta find a tester first! yea yea i kno about building one.



btw i try and stay outta boost as much as possible even getting on the highway