Cannonbear

I've read bout the gs4's using these and having great success, will these work on the 98 sc4s as well? I know of two sc430s using the gs3 and is3 rear differentials for more accel/lower top speed and plenty of gs4s using the tc/lsd option for more response. ive searched and found nothing about anyone actually using these.

Anyone used this combo?

gsshopper

Cannonbear: I have both installed on my 99 sc4, the same model series as your 98. Search for my post on this from last year (can't recall the exact date). I recommend this upgrade combo - made a significant difference in off-the-line acceleration.

Cannonbear

thanks, checking for it now : )

How noticiable was the difference? night/day or a subtle pull? I'm wondering if this is a good way to wake up the car.

gsshopper

Here's my original thread: https://www.clublexus.com/forums/sho...hreadid=116808

The difference from stock is significant, night-and-day off-the-line. The only drawback I can think of is that, when you accelerate from a dead stop slowly, and then mash the throttle, you experience a surplus of revs and a dearth of torque, until the transmission upshifts. But if you accelerate aggressively off the line from the start, no such behavior occurs.

I would never go back to the stock setup, however. These mods made my car much more enjoyable to drive.