Quote:
Originally Posted by 1971Stepside
I have a 6.0 and went with the BTR Stage IV. They told me that would add about 75hp to the engine. I added the large tube headers. That is supposed to add another 20 -25hp. I'm hoping to hit 400hp once it is tuned. I don't think you will be close to 450hp with a stage 3 cam. Mine is together, but far from running at this point so I can't speak to the overall feel. Mine will only be a sunny day ice cream fetcher.
|
You two are talking different measurements, Flywheel vs Wheel HP.
Your BTR cam will add that horsepower with proper tune and headers, you won't see extra with the headers.
My LQ9 based 6.0 with the following mods puts 425hp to the ground:. LS6 intake, FMS F13 cam (230/232, .595/.585, 112+4), 1 3/4" primary tube mid length headers. Equates to over 500ho at the crank with a conservative 18% drivetrain loss. And it has a nice big flat torque curve.
That rwhp number is backed up with a scale ticket and ET at the dragstrip.