GEARING OPINION
Moderator: John_Heard
GEARING OPINION
I HAVE A 71 NOVA FOOTBRAKE BRACKET CAR THAT JUST REPLACED A BASICALLY STOCK 350 ENGINE WITH A 385 INCH THAT NEEDS TO TURN 7300 RPMS.I RUN A GLIDE WITH A 1.76.I TOOK THE CAR TO THE TRACK FRIDAY AND THE MOTOR TURNED 6000 AT THE TRAPS.IT HAS A 4.88 GEAR NOW WITH 30X10 GOODYEARS.CAR RAN 6.85 AT 100.5 MPH.ANY SUGGESTIONS ON A GEAR?IM THINKING A 5.57 MIGHT BE THE RIGHT GEAR BUT I ONLY WANT TO SPEND THE 350.00 ONCE.THESE CALCULATORS ONLINE ARE KINDA CONFUSING.THANKS TIM
To turn 7300 rpm, at 100 mph, using a 30 inch tire, you're going to need to run a 6.35 rear gear.
A 5.57 will let you run 6400 rpm through the traps.
I don't know how accurate these numbers are but here's where they came from:
http://www.ringpinion.com/Calc_RPM.aspx
A 5.57 will let you run 6400 rpm through the traps.
I don't know how accurate these numbers are but here's where they came from:
http://www.ringpinion.com/Calc_RPM.aspx
gear
i ran a 6:33 in my truck with a 32 tall tire it was abt 7800 thru traps , most of the guys arnd here running close to that setup, run 6:30-6:50 gear for 1/8 mile
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stall
what is your stall?
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77 corvette backhalf
weight 2950 w/o driver
482 735hp na 300shot out of the hole
1/8 th mile racing 5.77 121mph 1.29 60ft
WWW.COONASSONGAS.COM
77 corvette backhalf
weight 2950 w/o driver
482 735hp na 300shot out of the hole
1/8 th mile racing 5.77 121mph 1.29 60ft
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