Most of the posts i see on this site are considering power in the higher RPM ranges for straightline racing, but im interested in having a really broad, really flat torque curve for my LT1 so that i can have lots of power in the lower RPM ranges(where it matters to me) i think this is probably more of a cam issue than anything else, and im just a little confused cuz i see people saying that with most cams youll be giving up some low end power for some top end gains, i kinda want the opposite from my car, and if a custom grind is in order, thats just fine with me. any advice as far as cams and head porting and the like is really appreciated. Thanks in advance.

 

There's a Crane cam that might interest you, here're the spec's: 210 / 224, .479 / .518 112 LSA

Thunder Racing seems pretty fond of it. It looks like it'd have plenty of torque down low and very easy to live with every day. Give 'em a call and tell them what you're looking for, I have a feeling this might be one of their recommendations.

FWIW, the cam I've got isn't too bad below 3k rpm's. It seems about the same as when I had just headers, exhaust, CAI, 52mm, stock stall. After that, it really kicks in big time. Passing someone at 70? No sweat. Got to merge quick? Done. Have a nice day . There's some fun to be had above 3k rpm's, I'd suggest not writing off the upper rpm band too quickly. The 224/230 XE is a great 'middle of the road' cam. Not too small, not too big and all that..

 

all performance engines are built to perform best in a given rpm range. i can only assume from reading your post that you want the engine to be torquey at low rpm... but exactly what is "low rpm" for you?
most of the time spent cruising in my car spins the engine at about 2000-2500 rpm. that's cruising. now if i decide that i really want to stand on it, i downshift once... maybe even two gears down. what rpm range did i just put myself in?
if you have an automatic, where does it rev to upon kickdown? so again, where do we want to build the power?

do you want to floor it in say 4th hear at 2000 rpm (no downshift) and have the thing accelerate hard or would you rather downshift/kickdown and work for power in that rev range?

PS, you are giving up power throughout the rev range with a wide lsa camshaft. unless you need to meet emissions, i waould make a pass on them.

JB

 

Ok, I did a little more research and hopefully this will help you guys help me a little bit. I want my motor to make good power from ~2k to ~6k. I see all these cams out there that make power to 6.5k and others all the way to revs that the stock pcm cant even handle. i dont really need something that makes power past 5.5k-6k cuz i wont ever spin my motor past that. I was just hoping that since i dont need for these crazy revs that i could be pointed in the direction of a cam or heads/cam combo that would be more of a compromise between top end power and a really strong low/mid range because my motor is gonna spend most of its time in low to mid revs. Id like to make a solid 400RWTQ average, and like i said i want to do this without spinning the motor too fast, is it possible NA? thanks.

CR

 

ttt

 

Crane powermax as mentioned above
ZZ3 GMPP (made by crane)
CC502 - 218/224 112LSA

The latter is what i got from combination motorsports because their kit was complete and the least expensive. I got it ground 111 though. Sorry I don't have it in yet though.

I agree with your ideas on where you should be making power. ALthough i drive stick great and often downshift, i didn't want to spin too high and wanted little to no cam surge for my commute.

-brent