ok, ive been doing on research on lsa and whanot. 106 degrees gives you the rough idle/muscle car sound. the 110-112 is what most street cars are running because it has descent overlap but is still streetable and the 114 had lower compression and runs alot smoother, but doesnt take advantage of headers like the 106 or 110's. now to the question. if running a normal aspiration racer, you want to use the lower lsa so it can take advantage of the scavanging effect from the headers. and adding a longer collector will aid that in certain rpm rane..BUT! what about running forced induction? the greater the lsa, say 114 or so, would it stop the overlap and not blow through the exhaust valve at the begining of the intake stroke? which lsa would be the best for a turbo/blower? i know lobe lift/grind has alot do to with the intake charge, but i am talking strickly valve timing. all things being the same, when you spool up whatever power adder you use (non N2O), which cam would be best? is it as i think, or am i off? please explain if i am not even in the ball park. thanx. by the way, happy turkey day. we got served by the officers here in iraq. was nice. food was outstanding for an outpost. it just doesnt seem right tho, there isnt football until like 8am tomorrow morning. kinda sux..=) and no beer. but! there is a nap coming on right after this post... zzzz
Longer LSA's work better with forced induction. I've found it to work on carbed motors too, better than the shorter LSA's. Now a day, 108-110 is considered a short LSA.
