Majior boost spike problum, please help!

[1madgumby]

Just put A 20-g on the truck, with A Greddy boost controler. with the boost controler turned all the way down & the WG rod @ stock adjustment ( half the hole showing) with A A.R.T. pit bull chip. boost spike is uncontrolable. not even half throtlle & IM @ 15 + psi. full throttle & it hits 22-24 psi & blows the rubber boot that connects to the upper intercooler to the throttle body off. NOT GOOD! were should I start adjusting @ next? adjust the rod longer? ( less boost) not sure guy's please help. put it back to stock is not A bad idea!!

Thanks!
Aj.

 

[dgoodhue]

Re: Majior boost spike problum, please help!

I would double check your wastegate operation. Make sure the boost controller is setup right (vacuum hose) and maybe even settings. Also make sure you wastegate is opening with boost. I have used a mitivac to make sure the actuator is moving the puck.

 

[1madgumby]

Re: Majior boost spike problum, please help!

I put A little bit of air into the WG accuator & it moves back & forth just fine. I will double check the controler to make sure it's in the lowest setting.

Thanks!
Aj.

 

[dgoodhue]

Re: Majior boost spike problum, please help!

You can also try bypassing the boost controller and running the boost source straight to the actuator.

 

[1madgumby]

Re: Majior boost spike problum, please help!

did that got 8-10 psi.

 

[turbodig]

Re: Majior boost spike problum, please help!

Just put A 20-g on the truck, with A Greddy boost controler. with the boost controler turned all the way down & the WG rod @ stock adjustment ( half the hole showing) with A A.R.T. pit bull chip. boost spike is uncontrolable. not even half throtlle & IM @ 15 + psi. full throttle & it hits 22-24 psi & blows the rubber boot that connects to the upper intercooler to the throttle body off. NOT GOOD! were should I start adjusting @ next? adjust the rod longer? ( less boost) not sure guy's please help. put it back to stock is not A bad idea!!

Thanks!
Aj.

Sounds like the boost controller is hooked up wrong. Your base canister boost is right where it should be.