How much HP can a T78 produce
 

I was wandering how much HP a T78 greddy can produce at the most.

I was just wondering where on earth you were wandering to? :confused: I guess I'm glad you wandered into our forums here. :bouncy:

With big enough cams, enough boost, and enough octane in your race fuel to support that boost level, a GReddy T78 can produce about 775rwhp through a 6spd. For 800rwhp+ in the GReddy turbo family, you'll need a GReddy T88.

Please note that the GReddy T78 is a VERY old turbocharger design; for the power it can produce it has a LOT of lag. In contrast, the new Garrett GTX series turbos have much less lag at the same horsepower...or for the same amount of lag a bigger GTX will give you much more horsepower (your choice).