Boost Creep Over 4000rpm

[Equinox]

This is really getting on my nerves.

Tried both types of Turbotech controllers (with and without the drilled hole) both set at 12psi and lately when it's been really cold (eg. at night), whenever I go over 4000rpm the boost creeps slowly up towards a maximum of 14psi at redline. Everyone says how well these hold boost, and they have for me too all through summer, but lately as soon as the air temperature drops, it just creeps like mad.

Anyone have any idea how to stop this? I have an AMPerformance CES-style one piece front/dump pipe if it makes any difference.

I might have to bite the bullet and buy an EBC if this keeps up.

Edited May 10, 2007 by Equinox

[Guilt-Toy]

if its freezing cold then the extra couple of PSI would be a bonus and wont hurt your turbo. its mainly when hammering the turbo on big boost when its hot is when we have seen ceramic wheels let go.

[NYTSKY]

I had one of those turbotech ones then one day it boost to 25psi! Kept doing it.Pulled it out now have profec B.

Save your pennies and get a reliable EBC.

[R33GOD]

i used teflon

spike gone

[Rocket_Rosco]

This is really getting on my nerves.

Tried both types of Turbotech controllers (with and without the drilled hole) both set at 12psi and lately when it's been really cold (eg. at night), whenever I go over 4000rpm the boost creeps slowly up towards a maximum of 14psi at redline. Everyone says how well these hold boost, and they have for me too all through summer, but lately as soon as the air temperature drops, it just creeps like mad.

Anyone have any idea how to stop this? I have an AMPerformance CES-style one piece front/dump pipe if it makes any difference.

I might have to bite the bullet and buy an EBC if this keeps up.

Sounds like the problem could be a restrictive wastegate or dump pipe/exhaust or both. If you can't release the exhaust flow fast enough the boost will creep due to the increased pressure within the turbo. I had this problem and had to have the wastegate modified larger and problem solved. There is no boost controller ever made that can hold boost if the exhaust system can't release pressure fast enough.