NoChrome

iTrader: (1)

I talked to the guys a comp today and asked what would be a good cam choice for my 2500hd, I told them I tow a little and wanted some lope, and I know you cant have lope and torque, but this is their suggestion, by the way I dont speak cam so if you can explain a little Id appreciate it.

Cam specs: 212/216 .520/.524 115* with hardened push rods, and 918 springs.

Also could I run 1.8 rockers or should I stick with 1.7's, Im not worried about the ramp rates just piston to valve clearence.

Thanks.

98TAauto

iTrader: (2)

yes you could run 1.8's with that cam since the lift is low....

but why not get a 212/218 .565 114 cam and not worry about the rockers.. it would be cheaper to get a cam with higher lift ground in

check out vinci performance... i have the 210/218 .535 114 and love it you can barely hear it though... but vinci has cams with .550-.565 lift which is a little less than what the rockers would give you on that .520lift comp cam. But you would save 300bucks

NoChrome

iTrader: (1)

Hell I dont know, Im just lookin for a cam that will keep low end torque I would like lope but can live with out it, what builds torque any way, is it the lift or lsa?

But yeah I can put that 300 to use else where.

Trevor @ Texas Speed & Perf.

iTrader: (3)

When I had my '02 GMC 6.0L 2500HD, I installed a 212/212 camshaft on a 112 LSA. It still had the factory RPM idle, and the only tuning I had done was a Hypertech (over three years ago!). With the factory idle, I could not hear the cam at all. I was trying to retain low-end power as well since I did a lot of towing with the truck. It managed to pickup 25 RWHP over the factory cam, but I could not tell a difference at all in the low-end power. FYI, I did have 4.10's in my truck. The 212/216 camshaft that Comp recommended would work for you, but I would put it on a narrower LSA such as a 112 and then add some advance into it. This will help to bring the powerband of the cam down a little further to try and maintain some of the low-end power you're looking for. Don't expect a huge difference for the really low RPM range, though (i.e. 2,000 RPM and below). It's not going to gain much in that range, if any.

Feel free to give me a call or e-mail me at trevor@texas-speed.com. I'll be glad to discuss some cam specs further with you.



Trevor
Texas Speed & Performance

Flyer

iTrader: (1)

I'd go a little bigger personally. A lot of people here truck and are somewhat conservative. You've got some cubes over the 5.3. The 212/216 is a small cam for the 5.3.

NoChrome

iTrader: (1)

You sir got an e-mail.