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which lsa???

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Old Sep 20, 2009 | 09:54 AM
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okay so situation is, i want to get down the 1/4 mile as quickly as possible, i have 59cc heads and am going to put the biggest cam that will fit, they say it should be high 220's and low 590's, i am going to be running a 373 gear, ported 92/92, full bolt ons...and the 59cc 243 heads are ported ....what im wondering is....does anybody know what lsa i should go with to get me down the 1/4 as fast as possible, car is a4 and still has stock trans so i dont want it shifting any higher that 6600/6700rpm, so with that in mind, any ideas on what lsa would be in my best interest, i understand it doesnt have a huge effect but i want to squeeze every hundreth off my time i can, thanks in advance.
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Old Sep 20, 2009 | 02:14 PM
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112lsa imo, depends on cam profile exactly. But many guys have gone even tighter and wider with your same goals with great results.
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Old Sep 20, 2009 | 02:50 PM
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isnt 220 small for an optimal track car?? 590 lift too!!
You have to know your exact cam spec before throwing a lsa, but in the stickies, it seems that 111-112 always come with great results.
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Old Sep 20, 2009 | 03:14 PM
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he needs to stay in the 220s with that stock a4 otherwise if he goes bigger he runs the risk of blowing thru the STOCK converter... i would go with a 112 lsa on a stock cube motor that will be plenty aggressive
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Old Sep 20, 2009 | 04:07 PM
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Originally Posted by Johnnystock
isnt 220 small for an optimal track car?? 590 lift too!!
You have to know your exact cam spec before throwing a lsa, but in the stickies, it seems that 111-112 always come with great results.
well i said high 220's meaning like a 228/228..593/593 or somethin like that would be the example of the cam im gonna need, the car has 11.2-1 compression and 59cc heads so i really cant put anything bigger in it or i would....thanks a lot guys a appreciate the advice.
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Old Sep 20, 2009 | 04:11 PM
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Originally Posted by Lances02ss
he needs to stay in the 220s with that stock a4 otherwise if he goes bigger he runs the risk of blowing thru the STOCK converter... i would go with a 112 lsa on a stock cube motor that will be plenty aggressive
i also forgot to mention i have a vig2800-3200...sorry

another question that ties into this one is it was said above that it depends on "cam profile exactly"...is that because of split duration and/or scr and dcr? or other reasons?? cuz im looking for a lopey idal so i really would like to run a 112 i just didnt know if id have greater performance from like a 114 or something.....i guess the question is, what to the exact cam specs have to do with deciding your lsa??
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