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Quote:

Originally Posted by mattrem

I knew Marc was going to chime in on this one,

Haha... me and my big mouth, right? ;)

I like what you say about the 216/220... I hate to admit it, but at times I feel like I almost have TOO MUCH lowend power and torque at times. It doesn't take much pedal to accelerate from a stop and jerk passengers heads back. I assume a converter will soften that hit, but I've been toying around the idea with going with some bigger cam specs...

I really do miss a lumpy idle... I just have a little cackle right now.

No, not a big mouth. Just alot of useful info, You are the cam guru :hail:

The stock cam was a neck jerker for sure, Now it is alittle easier on driving and my girlfreinds neck. When you get on it, it hauls, I think your 220 would have really liked the headers.
ILL, The only reason I went with the 216/220 was I don't want to change the stall. I kicked this idea around for like a month before I made a move, I picked Allens brain for the longest time. He said that a 6L needs more cam, I was almost set on a 212/218.

Quote:

Originally Posted by ILLNALI

Yes its mainly street driven, I have been to a track and do plan on going every now and then. Once I get a stall it can help me keep the lowend and maybe I could get the cam advanced if needed to, to make the power where i want it. The problem I'm having right now with the truck as far as power goes is on the top end, not the low end. I've never been one to believe in getting a small cam like a 208/212/218 etc etc.... I like the big cams

If you like big cams, then I'm pretty sure you'll like it. If you're asking if your motor will fart, backfire, and stumble down low - nope! - it just won't have much 'area under the curve'. It may feel quite doggy around town an on the highway. You may be travelling up a long incline to feel the truck lose speed - you may step on the gas some more, only to have the truck slow down even more. (things I experienced). You can change your shift and lockup points to quicken downshifts and to keep your RPM's out of these doggy areas, but that may be an annoying fix if you have to move them too much.

I think the main idea with cams is more or less picking the duration based off of the powerband you're looking for in your particular motor and chassis. Tall gears, taller tires, heavy weights - they'll all typically prefer smaller durations. Light vehicles, deep gears - you know, bigger cams.

I know what you mean about top-end power. I get nasty amounts of power out of my little stick at 25% and 50% throttle way down at 2,000rpm -- power that would have required a 75% throttle and a downshift with the other cam... but my top-end isn't all that enthusiastic. It's not really what the cam was designed for. I'm looking into other mods to help out the top end on things - intake and exhaust setups.

Man, I can't wait for the track to open in April.