Street Gear Poll

440
your combo is trapping around 6969 mathematically speaking.For you it may be optimum.To say that 3.91 to 4.1 is optimum for the average guy is kinda misleading, I think. Unless you know exactly What his W/P ratio is and his trap speed, and his tranny set-up is etc. To throw a number out there for the average guy, you kinda need to define the average guy.
For instance a guy with a 3spd trapping in 3rd will need a different rear than a guy trapping in 4th with a 5 spd.
Or a guy with 350 hp will want a different gear than a guy with 400 or 450.
Or a guy like me ..... who runs 3.55s to 93 in the 1/8th, on 400to 430hp, because I have a 3.09low gear. Now the 3.09 x 3.55 =10.97 starter gear, and 10.97 /the regular 4spd low of 2.66 = 4.12 starter gear. So same car uses two vastly different rears with two different low gears.
Mr Average could stick a 3.91/4.1 in there , go out and make a few runs, get an mph number, and find out he missed the mark a lil, and have to swap those out.
He could have done that with 3.55s or 3.23s or anything and saved himself the cost of at least 1 gearset.
Am I making sense?