Ok im buying a cam from texas speed but i have no idea what lsa to go with the cam is the 220/220 u can pick from lsa 110 to 115 but its like talkn greek to me on this so any help would be nice.... and what does the lsa do?

 

You first need to decide on what size converter you will run. Then you can start looking. The LSA determines when the power comes in at in the rpm range, the rate at which it makes hp tq, how flat the curve is.. A tight lsa cam 110-112 will make more peak hp usually but it is peak hp, where a cam with a wider lsa 114-115-116 will have a broader tq, hp curve, but might not make more hp... There is also alot more to it but this is a general idea..

http://compcams.com/Community/Articl...?ID=1726205736

 

stock tc

 

then maybe look into 115... just a heads up, with that cam and a stock TC, trucks gonna be a slug off the line..

 

what LSA to go with? I suggest the one in the CTS-V

 

Well I would look for a mild stall, just to take advantage of the 220 dur.. You can get away with a 220 on a 114-15 with a stock verter, but you won;t like it....

 

youve got it backwards, lower LSA lowers the powerband and broadens it, tighter LSA like 114+ raises the powerband and is more peaky.

Lower LSA will have more off idle power/low end power

 

so your sayin a 112 makes a flatter smoother curve then a wider one 115-118??? Tighter cam 112 peaky curve... Wider cam 118 flatter curve

 

+1 on that general idea, but lowering the LSA also increases the overlap, which determines the HP RPM band... More overlap means it is more efficient in the upper rpms and less efficient in the lower rpms

 

Ive read that wider LSA produces a broader curve, but from what I've seen in our LS based motors it's pretty much opposite. I could be completely wrong, but to the OP, I would get it on a 112lsa