Need help with cam selection

[3timeracin]

I have been a member of LS1 tech under the same name for a while with several cars.... Well it has come time to do my old truck up I have a set of CNC'd 243 ls6 heads 64cc with patriot extremes and the truck is a 2003, 2500hd, LQ9, 4x4 extended cab with 4.10 gears 33" tires.

I have already put on a ported throttle body, cold air intake, Edelbrock headers. I have noticed the stock converter seems pretty loose ? like 2200-2300 ? Id rather not change it what cam have you used or do you recomend for my application ? I was thinking 218/224 .580 112 ? I was gonna go larger 228/230 .590 but decided it would loose too much low end even with the added compression of the heads ?

[Show&Go]

The 218/224 would probably be up your alley sounds like from what you want. Or maybe a Tr220

[sprayedenali]

i bet a 224 on a 114 would do you good.... the 112 might be a little tight for a 2500

[98aggie]

Get with Patrick G on Ls1tech to get you a cam

[GasGuzzler]

I would also go 114.

[3timeracin]

Get with Patrick G on Ls1tech to get you a cam

Dont get me wrong he is a great guy, but I had tried 3 or 4 cams he has designed and not been tottally happy. I was doing the L92 stuff when it first cam out and using cams with the big split with great sucess 236/250 and such. He posted up some crap about I was makin up numbers and those splits would not work in the L92 because of runner velocity and some other stuff ? Well guess what everyone is runnin now 3 years later ? the big split cams. I have built a couple hundred engines over the last 12 years and worked for a well known shop and west tech too. I just was wondering what everyone has used with sucess. I feel anyone can look at the big picture and guess pretty close, but if you can find people doing it you get the very best results and info....Thats why I am here, you guys know first hand from using them...

[3timeracin]

i bet a 224 on a 114 would do you good.... the 112 might be a little tight for a 2500

I was thinkin the 112 would be better the valve events with a 112 would build more compression and torque at lower rpm ?

[sprayedenali]

i dont know much about it at all, but from ive learned around here the lower the LSA the "peakier" the power band will be, so with a higher LSA you will have a flatter, and therefore "torqueier" power band... right?

[RedHeartbeat]

seems as though the 118+ cams have a broad powerband and the 112 and less overlap cams have a much tighter powerband and choppier idles.

[3timeracin]

you are both right but you have to consider a 218 cam with a 112ls has less over lap than a 228 cam with a 114 or even a 115 for that matter ? I build alot of racing stuff solid rollers and torque is not a concern with heads that have 260+cc ports and 14.1 compression. I have 2 cores heres what i have decided to do I am regrinding one as a 218/224 .550/560 with a 114ls and the other with a 228/230 .575/.590 with a 114ls and try them both ?