Well I do have aftermarket wheels if I remember correctly I'm running Linea Corse Z2S 19x8.5 Front +30, 19x9.5 Rear +30 5x114.3 73hb or 19x8.5 Front +30, 19x9.5 Rear +40 5x114.3 73hb

 

what is the actual rear tire size? 285/30/19?

 

There actually 285/35/19.

 

heres a calculator
http://www.f-body.org/gears/

for yours you would enter

285/35/19 for tire size
4.27 for axle ratio
enter your redline
for a W58 the gears are
1- 3.285
2- 1.894
3- 1.275
4- 1.000
5- 0.783

assuming everything is correct the table it gives you should be accurate to your true rpm/speed

 

Ha! I hate to support GM, but that's the calculator I use also.

 

i have a gs400 pumpkin, my question , what kind of result i should expected, i was told, if you have a 2jzgte 5 speed , a 3.92 would be perfect, but you can get away with an auto tt pumpkin. and the 3.26 will be perfect for a 6 speed, why does it matter, if your car got power, it will moves with a 3.26 diff, with a 5 speed. plz reply

 

with the final gear your trying to maximize the cars efficiency

if my car only has enough power to go 150mph then i dont want a differential ratio thats going to put my maximum speed at 200mph(ie redline in the final gear)

I also dont want a final gear ratio thats going to max out and redline at 125mph

what you want is a final gear that will get you close to but not below 150mph. That way you have enough gear to get you to your top speed, but wont hit the redline before you run out of power.

make sense?

 

don't know if anyone has mentioned this but you can always weld the diff. It's not good on tight turns but it does the job.

 

cruising at 2600 at 80mph with a 3.26 diff ratio is perfect for me, instead of 4 plus diff ratio, a 3.92 ok, even a 3.76, with a 3.26 diff in a 5 speed with power , whom will need a 6 speed, there not enough road for that with power, that is equivilant to a 6 speed with out spending the 6 speed money, am not a block to block racing, am more of a hwy , high speed cruiser. to me hondas are great from block to block, not toyotas, unless you have alot of juice for acceleration.

 

93msb, great site thanks bro

 

70 percent duty of the rearend limits are great for me, so am not over working the diff

 

Hey you got that Diff in yet? Im curious on the results.

Btw do you do more Grip or drift style driving?

 

93MSB explained it nicely.

There are ill effects in not gearing up correctly. Many think that swapping over to manual is instantaneously going to make the car perform a bit faster over it's automatic counter part. With correct gearing that is true.

The effects of a longer gear ratio would be less shifting, lower cruising speeds and a higher top-speed (which is pointless if you don't have the power behind it).

Effects of a shorter gear ratio would be more shifting, higher cruising speed and a lower top-speed making it a rev-happy drive-train.

 

Well this was a very helpful thread. Thanks fellas

 

What about the soarers differential, I think is LSD, I suppose it should be a direct bolt on can someone confirm this?