What rpm does 3:91 gears give at the end of the 1/4 mile
My combo is geared for 93=6160 in Second-over with 3.55s; for the Eighth mile, which is mathematically same as 106@7000
Oh you said 3.91s;
Well then, the gearing will take it to;
93=6340 in Third with 3.91s, which would be 106@5160 in Fourth or 5636 in Third-over.
But If I had enough power to go 115; 3.91s would do it at 5600 in Fourth or 6120 in Third over.
I have a 360 magnum in a 1974 Duster, With 28.2” tall tires and a tight 3500 stall converter, 727 trans with 3:91 gears. What trap RPM will I see at the end of the quarter mile?
