What is the most hp you can run a hx40 on and not worry about egt's?

 

Not an exact HP # but I would guess, with your set up, going to HX40 would lower your egt's 2-300* and just as important, take longer to get to max. Don't know the Dodgezilla well, so this is piecing together what I have heard. But with your Box, on higher settings, and any street driveable single turbo, you will get hot, IMO.

11:46 - Just found this chart that shows 440 street, 550 racing, as max hp for HX40. See 5/28 - 10:36 on this thread. https://www.dieseltruckresource.com/...threadid=45038
Rowland

 

Well with my HX 40 and Edm 2.5's and an Edge Comp on 5 I could bury my EGT pyro at 1500* it was piersified as well. So that should give you an indication of where you will be.