38R wastegate adjustment

[ftech79]

Hello, I was wondering if anyone has adjusted the wastegate on a 38R and if they have is it a noticeable difference and how the affect it had on boost and egt's?

 

[sootie]

depends what injectors you are running but i believe most guys on stock sticks crank it all the way shut.

 

[ghohouston]

It just depends how the wastegate was set from the factory. Obviously if its cranked way down, boost, backpressure, and egt's will increase. Id set it around 30 psi.

 

[CarportMechanic]

I tighten mine all the way with my 175's.

I hit about 36-38 psi with BP at about 45 psi. really not too bad. 1.0 AR.

 

[ftech79]

Thanks everyone. I have 175 sticks and I was just curious because I've heard several people say that garrett sets up the wastegate loose

 

[jeremiahmercier]

Tighten that baby down, best thin we ever did in our 02, stock turbo too

06-6.0l, studded, reworked heads, egr ******, blue spring mod, 6.4 banjos, dummy plugs, stand pipe, upgraded stc fitting, New oil cooler, New ipr, New icp, atlas 40 FICM, stage 1 powermax, and Looney wild, 325/65R18

 

[Justin@DP-Tuner]

Most 38r's I see have the wastegate set to start opening around 15psi from the factory. That is much too loose for even bone stock trucks. I just crank it as tight as I can get it.

 

[fyrehose]

Since I am pushing 40 lbs of boost, mine is closed.