hey tunnerz i have a gsr block with stock crankshaft 8.5mm 9:1 cp pistons, port and polish skunk 2 pro 1's camshafts tdo5 greedy turbo kit with 450cc injectors does anybody knows whats the horsepower can i get out of it. any answers will be appriciated. thanks.

 

you'd be lucky even on the most generous dyno to hit 300whp....get a new turbo setup and larger injectors if you want more.

Also i think you meant 81.5mm Pistons....unless this is a nitro rc car...