Subject: Re: The old 3.73 vs 3.53 debate by dan0617 on 2009/4/21 18:03:58
Quote:
anesthes wrote: Gears should match the tire size + camshaft. There is no debate.
For a street car that means keeping it in the power band for passing and acceleration, for a track car that means crossing the finish line in your 1:1 gear right below redline.
A 3.07, with 26" tires crossing the finish line in your 1:1 gear at 4500rpm (redline) would be going 113mph.. No stock L98 does 113mph at the track, so saying 3.07 is a perfect ratio for 1/4 mile in a stock L98 doesn't make any sense. The math doesn't lie.
Most L98s run somewhere between 95-98 mph, so a 3.45/3.54 gear ratio should have you cross the finish right about where it needs to be, and it should provide the best 60' and ET.
The 3.73, I think may run out of steam up top with a stock cam, I think you'll see around 93mph at redline which tells me it's too steep. A 3.73 would be PERFECT with a short duration (6,000 RPM shift) camshaft and a good intake like a miniram. That's an instant 125mph car, mid 11s.
-- Joe
WOW, I need a new car then. If I could start over with an L98 car bone stock, throw in a set of 3.73's, a short duration cam (224/230 maybe??) and a miniram and run mid 11's then that is what I should do. I'll even throw in a converter and a good exhaust if I can pull mid 11's at 125 mph with just those mods.
I think I'd need those mods AND your blower setup to run mid 11's at 125.
