|09-15-2002, 01:07 AM||#1 (permalink)|
Join Date: Apr 2002
Location: Portland Oregon
Recommendations on a rear gear ratio
Hi. My engine is a 351 Winsor, .30 over, forged pistons, balanced & blueprinted. Cam is 278 duration .478 intake and .498 exhaust. Running ported trick flow twisted wedge heads and RPM edelbrock manifold. I have a modified Holley 750 running annular front boosters and double downleg rear boosters. Last night I ran 13.9 et at 100 mph. I currently have 3.25 gears and a C-4 automatic with 1800 RPM stall converter.
I cross the quarter mile at about 3300 RPM in 3rd gear. I would like to use a rear end gear that will put me at 6,000 RPM in 3rd gear at end of the quarter mile.
Any suggestions on the right gear ratio. Any suggestions on a stall converter point to maximize launch? At 3,100 lbs, does anyone have a program to compute my rear wheel horsepower?
I am thinking 4.57 or 4.80 gears would be about right. But what are you guys running?
1966 Customized for daily street and highway domination. 358 Windsor running 425 HP
C-4 Auto and 3.25 Posi
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