I don't know who else has this problem but i've tried searching and it doesn't seem like everyone has the same issues... My secondary turbo kicks in at 5500RPM, instead of the 4500RPM... Does anyone have similar problems? Are my turbo's dead? they are stock turbo's btw.

 

Are you judging this based on a boost gauge readout, or seat-of-the-pants? If it's a boost gauge, does the boost drop at 4500rpm?

Bad turbo control solenoids or a leaking pressure chamber can cause slow secondary boost.

Dave

 

when i got my car tuned by steve kan, he told me i had no 2nd turbo, t'ill he found out it came in at 5500 rpm vs. 4500 rpm. Then i noticed especially when boosting as well too...

 

OK....

What mods do you have? Posting this will help get you answers...

 

The ECU controls the 4500rpm transition point by way of the solenoids. If it's truly transitioning at 5500 instead of 4500, the answer lies there.

Dave

 

okay, imma try that... see if getting new solenoids will fix my boost issue...

 

HAte to bring back an old thread, just did the vacuum simplification and I dont get secondary turbo till 5500. Was a solution ever found to this? Or does anyone have one, thanks


Chris

 

Any help with this?