So I got fucked on my ching chong internally gated turbo. It was supposed to be an 8 psi wastegate. It wasn't. I threw a gauge on it and it was more like 13-14 psi. So what to do? I cut the bottom off the chamber where the spring was. I cut a coil out and tigged that ---- back together. Bam. 8-9 fully extended on the flapper. No leaks.

So yes, yes you can lower the psi of an internal wastegate actuator.


---- you China. Good day.

 

pics!!!!!

 

haha nice Dave

 

Lol I got a junk GT15 with a slightly leaking WG actuator, I pulled it apart to do something else with it, so I know its not that hard & can be done.

I can't recall, maybe it was the Volvo guys who were doing this. They were chopping and adding springs to save money rather than buying a weaker actuator, or getting a MBC.

 

I wonder if this will work with my holset. ------- extending the arm to the max = 30psi.
Detached arm and "open" wastegate = 25psi.
****** needs some porting.

 

U never turn the boost down NeVERRRRRRR

 

yes you do.. you have a target,, so why aim high.

you can add a spring pulling the arm the other way,, affix it to a point that makes it easyier to move the wastegate arm.. I use 2 attach points .. one hold steady ad 5psi, the other at 8psi, remove the spring you get 13 psi..

No way wa I going to spend $90 to lower my boost level with a new wastegate.. I dont like adjusting the push rod because it limits the funtionality of the wastegate.. This method works just as though you had opened it up and replaced the spring..

 

jwildman. check the post date before replying. these are all 3 year old threads.