4.30 lsd in a mk3? How will the driveability be?

[Bobbyt5408]

Im currently in contact with another member about an 4.30 lsd for my mk3 1jz single turbo swap... now im lookin for better numbers at the track but i still drive the car everyday so will i notice a loss of comfortable driveability? Its mainly highway use? what will the RPM be cruzing at like 70? Im sure someone on here has this diff in their car so please some intel would be great!!

thanks in advance!:icon_bigg

 

[mensrea]

Around 3200-3300 rpm in 5th @ 70 mph.
I didn't like it with single, first gear is useless/too short.

 

[IJ.]

Around 3200-3300 rpm in 5th @ 70 mph.
I didn't like it with single, first gear is useless/too short.

Ditto fine off boost the car will "feel" snappier but once on boost it's going to be slower as 1st won't load the Turbo enough for full boost.

 

[suicide]

I'm also trying to decide between a 4.30 or a 3.909. I do track the car 1/4 mile but also street drive it.

What do most of you guys suggest.

 

[xzeror]

http://www.supramania.com/forums/showthread.php?32898-MK3-Gear-Ratio-RPM-Tables

 

[IJ.]

I'm also trying to decide between a 4.30 or a 3.909. I do track the car 1/4 mile but also street drive it.

What do most of you guys suggest.

I was pretty happy with 4.10's and 285/35/18" tires it was a good compromise for a road car.

 

[2543arvin]

I have it and by the time I make it down the track, Im in 5th gear. Definitely not good. Im currently looking for the 3.91 LSD to swap it out with.

 

[mecevans]

4.1 or the 3.9 will be your best option.

 

[RazoE]

I'm on a 4.3 with a 7MGTE, and I have to shift almost immediately, so definitely stick with a lower ratio if possible..

 

[Bobbyt5408]

what if i took the gear set off of my diff in my car now and put it on the LSD thats in the other car? Also in 1988 did they only make one gear set for the supra turbo's (its out of an automatic)