The gearing alone doesn't really mean anything. People run different tire diameters and transmissions with different drive ratios etc. What rpm are you cruising at on the freeway? For example I am running a 29" tire in 5th on a g50 trans, 2800rpm at 80mph in florida.
What are you doing with your car, track, race, or cruising around? S
And what kind of gearbox do you have? Knuckle-dragger front engined car guys discuss rear end gearing as an absolute because the premise is that their transmissions are running a 1:1 ratio in top gear. However transaxles rarely have a 1:1 top gear, so comparisons become next to meaningless.
In a GT40 with a standard ZF transaxle, top gear is .70 and the ring and pinion ratio is 4.22. But there are .655 and .642 top gears available, along with 3.77 and other R&P ratios. I don’t have any idea about the various other transaxles commonly used but I presume they are just as varied.
Nick, I’m sure with 600hp it will pull like a beast no matter what gears are in it. The cars only weigh 2100-2500lbs. The reason I stated rpm/tire diameter/speed is that you may not be able to drive it anywhere if you gear it wrong and are taching 3500 rpm at 60mph...... With a 70mph speed limit...... S
A 2500 cruise rpm is reasonable for cruising at 85mph. (I would probably want the rpm to be a little lower going any long trips) Even with a low (.6 something over-drive top gear) and 26" tall tires and a 4.11 r&p you will hit 2500 rpm around 70-74mph........
Which tranny have you chosen that will hold up to 600hp blasts??????? S