EPS 222/226 vs 226/230, LS2 GTO
01-08-2012, 12:28 AM
#22
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You are correct sir. I typed it wrong for sure. Basically what I was trying to say is the lower LSA will have a narrower powerband that starts later and have to rev higher to use the power. The higher LSA has a wider power band that starts lower. Correct? The torque falls off earlier in the narrow LSA but the HP doesn't if other supporting mods are there such as intake, other parts of valvetrain etc, right?
My understanding is that a lower lsa is not ideal for a stock verter because it runs a little choppier and may have a little surge/push on the brakes (as it also probably makes less vacuum at idle). 114 -115 is generally recommended, but I think 113 will still be fine while giving me a little more low end and lope then the 115 version.
It's what I'm hoping for at least. I am a little worried that the powerband will drop off to fast to make use of 3.91 gears that I'm planning. perhaps a intake manifold like the typhoon will help to extend the powerband...what do you guys think?
I think it's doable on stock verter, but I'll want to keep the idle down to lessen brake push
01-08-2012, 01:23 AM
#23
i run a comp cams 224/230 .58x 114 on a stock converter on my 98 a4 z28 and i have no problems with driveability at all...after cam install i picked up 8 tenths with some et streets...im def goin to do a converter this spring, but the stock converter is no problem (other than the fact i have to launch at like 1600 rpm lol), but for street driving its perfect, and that cam loses no low end torque whats so ever...
