Thread: What do you guys think of this combo for torque...

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Comp has dyno sheets for the XE250H and the XE256H cams on their website.

http://www.compcams.com/Technical/Dy...50H-10_001.asp
http://www.compcams.com/Technical/Dy...56H-10_001.asp

They make pretty much identical power curves with the same peak torque and horsepower at the same engine speeds. The 256 just carries itself for a few extra rpm. That means you can stay in your lower gears longer to help get that heavy car rolling.

Horsepower is what gets you down the track, not torque. I can exhert just as much torque as my engine to the wheels of my truck and more. Yet, I cannot exhert that torque fast enough (horsepower) to get it rolling at any appreciable speed. If you have a car running at a certain mph and two engines running at the same horsepower output, yet one is running at 3000 rpm and the other is running at 6000 rpm, they are both putting the same amount of torque to the wheels even though the 6000 rpm engine is making significantly less at the crankshaft. Maximize your horsepower and generate your torque with gearing (those 3.73's are going to be plenty sufficient).

Here is a clip of my truck running a 15.372: http://videos.streetfire.net/search/...E19507E2C1.htm
By using the detent to keep the truck in 2nd gear, I was able to increase the MPH from 88 to 90.5 in a later run, but I spun the tires bad off the line.

The combination I gave is entirely capable of getting a 3600 lb Vette into the 14's, especially with your gearing and tires. No slippery converter or high octane gas required. It was topped off with an out of tune Q-jet and a stock HEI ignition.