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82 GT · 08-17-2004, 06:17 AM

Hey, ieatcamaros , where are you getting the math formulas to calculate engine speed/MPH? I couldn't find any for a C-4, they were all for the T-5

Anyway, what would be my RPMs at 65-70mph using the same 225/60/15 tire with a 4:10 gear?
Those 4:30's seem a bit much for the street. I really think I would run out of gear before I hit the traps though shifting at 6000rpms.

i8urz282 , I am getting slicks as well.

08-17-2004, 06:17 AM	#10
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Hey, ieatcamaros , where are you getting the math formulas to calculate engine speed/MPH? I couldn't find any for a C-4, they were all for the T-5 Anyway, what would be my RPMs at 65-70mph using the same 225/60/15 tire with a 4:10 gear? Those 4:30's seem a bit much for the street. I really think I would run out of gear before I hit the traps though shifting at 6000rpms. i8urz282 , I am getting slicks as well. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.