Question about wastegate

[Flys007]

When I got the truck it had the motor not installed. Everything is together, but i have a question.
It has an aftermarket wastegate mounted on the cross pipe, and i am trying to finish up the vacuum line routing. No wastegate actuator....Can I buy any wastegate actuator, or is there a specific one that i am looking for? Stock motor, and stock turbo.

 

[BoostedSUV]

Re: Question about wastegate

This is a specific actuator that works with our trucks ECM and there should be a plug for it somewhere around the passenger side valve cover. Otherwise you will need an aftermarket boost controller to control boost. Either a manual or elec will work fine. Only other option is to change the spring rate to whatever you wish to achieve for boost and run a feed line off the turbo but you won't have any adjustablity

 

[BoostedSUV]

Re: Question about wastegate

Check sytyauthority.net for a list of part #'s. The wastegate actuator is listed and is still available from GMpartsdirect.com. I would get the part number for you but I can't do it from my blackberry.

 

[Flys007]

Re: Question about wastegate

It was my understanding that with an external aftermarket wastegate you didn't need to use the stock wastegate actuator that is located on the harness.

 

[turbodig]

Re: Question about wastegate

This is sorta confusing....

Crossover pipe mounted WG doesn't need an actuator, because it *is* one.

You don't need the stock electronics either.

You will need a bleeder or an external controller to control the WG past what the spring tension is set to.

A word of caution - make *really* sure you know how much boost you're set to before getting on the throttle really hard. Too much boost too fast is a good way to have a new motor go *poof*.

 

[sytyguy]

Re: Question about wastegate

A word of caution - make *really* sure you know how much boost you're set to before getting on the throttle really hard. Too much boost too fast is a good way to have a new motor go *poof*.

What Dig said. Post a pic up of the wastegate and we can help you out with the vac routing for the bleeder or EMBC.

 

[Flys007]

Re: Question about wastegate

sorry about the bad picture, it is the best I could find. This was before the rest of the truck got put together. I don't remember the brand.. but I can look when I get home.
It has two vaccum nipples on it one on the top and one on the side.