Drake

I know nothing about cams....are these good specs?

TR 224/224-562/562 cam and Comp 26918 springs

69z-28

thats a huge lift and small duration i think, those are goofy numbers, idk ask someone who knows a lot about that.

Mike Jones

iTrader: (1)

I've been looking into cams, try a search at LS1Tech.com. They have the most information as far as the LS1 is concerned.

JesasaurusRex

Its quite simple actually, what do you want to know? duration has to do with how long the valves stay open. Lift has to do with how far they open.

JesasaurusRex

You realize LSx type cars have possible rocker ratios of 1.8

Our Gen 1 or 2 small blocks have ratios up to 1.65 (might be higher ones but thats the highest ive ever seen) 1.6 is normal anywayz, but theres 1 out there thats 1.65. Anywayz those duration #s and lift #s match in my book for a hydro roller cam.

Ill say that cam pulls to 6500rpm max going off that duration. Basically, when you do top end stuff. You want to match everything, (cam, intake manifold, and heads) If ur heads only flow good to .5 lift and then drop off, its useless to get a cam that goes above that. Get some flow #s for ur stock heads (if they are infact stock), and let me know the rpm range ur intake manifold uses. And ill try 2 help you out. Only if u want to tho.

69z-28

didnt know that.lol

archemedes

all depends on the rest of the system a cam can make power or kill it real easy you have to match the rear gear, the trans the heads and intake, the best thing to do is call the cam companies they spend billions on r&d and dyno time

69z-28

yea, if u call isky, they ask you every spec about yuor car to find you the perfect cam. then i think they can show u one that would work well or refer u to a diff. company that has a better match.