Quote:
Originally posted by Red Mustang Gt 46
The HP gained is usually in the upper RPM's...with an open exhaust. Since 4.6's have a mild compression ratio, back pressure is needed to have a complete burn within the cylinder, if you were running 10:5 compression or higher...back pressure has a minimal effect...in my experience. (I am no expert)...
|
Ok.. did you lose any low-mid power when you did your exhaust?
I know that there is a claim of HP gains with exhaust systems, but thats just in the higher rpm's...
Wondering if you lose a little low end with a cat-back system, since it loses a lot of back pressure...
???
__________________
Torch Red '02 GT Convertible 5 spd
BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin!
Click here for pictures & more info!
If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!
|