coop661

Far as I can tell from reading here and other forums, the E7 350, 400, and 427 are the same motor, just with different turbo, injectors, and camshaft. So turning a 350 up to 400 or 427 doesn't sound like it's asking too much of the drivetrain.

Hi everbody, long time listener first time caller. I recently picked up a 93 CH613. It has a 350 with Vmac1 and a 9speed Eaton. I'm using it to haul logs and it has done surprisingly well hauling 80k. That being said I would definitely like to get a little more power out of the motor. I see these tuner programmer things that claim 10-30% power increase, has anybody on here used one without upgrading turbo or injectors? I'd definitely like to get 400-425 but not if that means great risk of engine failure. Thanks for any advice y'all can give