"Super Chevy's" CompCam-XE Comparo

[Street Lethal]

For those who haven't read it already, enjoy. :D

LS1 Cam Comparo (http://www.superchevy-web.com/technical/engines_drivetrain/cams_heads_valvetrain/0406phr_gen3/)

[hammertime]

Good Read!

I was impressed that the largest cam tested still posted better TQ numbers down low than the stock cam. Makes me feel better about wanting a big cam for my (non-daily-driven) street car.

Stock (F-Body) LS1 vs Xtreme
RPM High Lift XR281HR
The increased duration offered by the XR281HR cam hurt power production compared to the smaller cams, but the larger cam still managed to post better low-speed torque numbers than the stock cam. It is out past 5000 rpm that the XR281HR cam started to get with the program. Without proper control of the rev limit, fuel and timing curves, this cam would not be the ideal choice. The XR281HR managed to post the highest peak power numbers with 455hp at 6,200 rpm, but the peak torque number was down by 1 lbs.-ft. compared to the smaller XR275HR cam. With good heads, an intake and full control of the fuel and timing, this XR281HR cam would make serious power.