Originally posted by DemonSVT: With my setup right now the 4.06 is definitely the better choice of final drives. There is absolutely no question about it.
The 3.84's would not help with launching and it would make every other gear a hair slower.
Totally disagree. The Contour chassis does not have enough room under the front end to fit any tire that will hook at higher power levels, slick or not. Explain how you feel that a second gear start *could* have provided better numbers (at the possible sacrifice of parts) but a slight shift in final drive would not provide some of the same effect?
Originally posted by DemonSVT: Also your rpm level after each shift will be lower. That will slow you down as well.
No, it won't. RPM split between shift changes are not effected by final drive changes. If you're spinning through second, and higher gears will stop the spinning sooner, who will get to point B first?
Originally posted by DemonSVT: A S/C car could probably go either way. Most likely the 3.84's would be better because it effectively lengthens the powerband & a S/C car is really only great on the highway.
However the same could be said that the 4.06's get you up into boost sooner since the S/C has to waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaait for it's real boost. (I.E. using gears 1-3 or road racing)
The lower rpm shift drop means less boost after shifting and a hair longer to get back into it "comparatively"
I would think the longer legs (I.E. top end HP) should definitely out weigh that in the top few gears. However not in the lower gears.
SC'ed 2.5L, yes, keep stock gears. SC'ed and NA 3L, no. Low RPM torque wins nothing but bragging rights on the dyno with this chassis because none of it can make it to the ground unless you're doing a higher gear roll on starting at low RPMs. Case in point, SZ02, I dynoed 45 more FWTQ than Worldtour's SC'ed 2.5L up through about 5,000 RPM. Later, he took off in front of me from a stop... after first gear stopped spinning for both of us, he was gone!!! Lot of good that torque did me.
Originally posted by DemonSVT: A turbo car would benefit the most from it because of the monster flat torque curve. The loss in acceleration from prolonging each gear would likely be outweighed by having a greater TMF longer.
Also since the TQ curve is flat the lower rpm drop after shifting really makes little difference unlike an NA or S/C car.
Agreed, for the most part.
Originally posted by DemonSVT: That's about as nice as I can be about the POS Vorcrap setup.
Remember my whole goal was to spite it's existence.
I like the Vortec. Nothing you can do about it.
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