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bad wastegate? - 6G Celicas Forums

Topic #70704 4 posts Started by easternpiro1
hey all, i have been having problems with the car going into boost and have been getting horrible throttle response.

i figured it was a leak so i checked all my ic/piping and the POS knock off Blow off valve i had (replaced with a tial Q)

after i did that, i drove it still bad response, so unless i missed a leak somewhere (i doubt) im automatically thinking wastegate. (i ruled out it being vaccum line placement because before i changed BOV's i could still feel a little boost albeit not much)

before i go taking apart the wastegate to inspect diaphram/spring i want to be sure so i will tell you what i hear when accellerating: when on WOT i hear a rush of air (similar to what it sounds like when i used to hit boost and it exits the dump tube when it was functioning proper)

whats weird is that my boost guauge will read 20psi if i hold it, but wont hold steady and will flutter when cruising on highway.

after researching im thinking wastegate, although i hear tial's reliability is near bulletproof. but ive also read other possiblities. I just want 6gc community opinion on this

thanx! biggrin.gif

This post has been edited by easternpiro1: Nov 20, 2009 - 11:08 AM

QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
anyone?

QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
Did you chech to see if thhe diaphram is stuck open or torn ?

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
>
QUOTE (presure2 @ Nov 21, 2009 - 3:22 PM) *
>Did you chech to see if thhe diaphram is stuck open or torn ?



thats what i will be doing tonight, i was making sure i didnt overlook anything else before i went and opened it up. im really hoping its that though! will post up later

QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.