I am fixing to put twins on my truck. HT3B on the bottom then the stock 35 on the top. I was wonderin how to set the stock wastegate on the stock 35?

 

IIRC, most people run the wastegate on the top at 22-25 psi.

 

but how do u set the stock wastegate to that?

 

Usually with a boost elbow, or some manual boost controller. If 21 psi setting is needed, just use the stock elbow, since that is where the turbo wastegates normally.

 

You might consider having the wastegate modified to flow more air.... Also have the snail crossdrilled. This is what we do for these types of turbos for twins.

Doug Smith

 

I agree with what Jetpilot said. Make the WG hole bigger. If you want to get real fancey you can make a differant flapper for the WG and make the hole realy big. I prefer to grind the center section divider down about 1.5" as aposed to drilling through the divider. I've seen to many cracks. I grind them down into a U.