on3 76mm?
 

What is this turbo capable of on a 6.0L? I have seen a few people that have pushed this turbo pretty hard but I wanted to see if anybody had maxed one out yet. I'm on a tight budget right now and my mp70 is on its way out so I'm looking for something cheap for now. Eventually I will step up to a tc76 or swap the 7675 off of my silverado in to the truck. This is in my s10 and its a old style rod stock 6.0L with a cam so 650-700rwhp would be the max anyway. Also, does anybody know what size exhaust wheel it has?

It has a smaller exhaust wheel. 68mm or so. As long as you have the .96 A/R you can push it to 600whp on a 6.0. I'm sure it will go higher, but nobody has really pushed one to see how much higher.

On3 did make a larger wheel version of the 76mm. Was at least 75mm on the exhaust side. I know that one has been over 700whp.

I pushed the turbo harder than that on the street. Power fell off fast past 5500 rpm but screamed all the way there. There was a big difference when I switched to the Turbonetics 7875 though. Made about 50 rwhp more at the same boost setting and picked up more up top. I made 677 rwhp on the Turbonetics at 16 lbs. and that was through a hurt trans.