Quote:
Originally Posted by racepar1
Kaaz 2 way is super aggressive, it'll be clumsy for your application. I had one in my car shortly, it was just stupid unpredictable understeer. You could literally feel the diff locking and un-locking as you entered the corner. I also ran one of the old Nismo 2-way diffs and it was much better, I think the Kaaz would have been better with better fluid as well. When I put the open diff back in the car I LOVED it in comparison. The car was just so free into the corner, rotated nicely. I honestly think that a 1-way might be the way to go as long as you don't mind the car being a little free on corner entry. All you can do is try it and go from there, but I wouldn't reccomend it...
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Quote:
Originally Posted by Wookie384
Another thing to take into consideration is your driving style, the overall set up on the car and even your alignment. I've known Racepar1 for a long time and he is a pretty aggressive driver in terms of corner entry and speed, his line is nice and clean, on the other hand I'm not as aggressive so his diff and sway-bar settings would not be a perfect fit for me. Since you have the parts handy just throw them on and see what you think, and adjust from there.
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I had a Tomei 2-way in my miata and now have a kaaz 2-way in my S13. I definitely didn't feel it locking and unlocking in decel during hard driving but it definitely makes the car less versatile in driving styles. In the miata for example, in a tight autocross, if you weren't entering the corners properly committed with the weight on the front it would tend to understeer slightly.
Changing the suspension setup (usually just alignment) to a more oversteer-prone setup will get rid of the majority of understeer. You're supposed to do this anyways when changing something as sensitive to handling as the diff.
I also added Ford friction modifier to my 240 diff which is like twice the size of the miata 1.6 diff lol. I think with fewer discs (or rearranged discs) and some friction modifier that would give you a good compromise.
Despite the shortcomings (noisy during normal driving, requiring more maintenance, ideal for a narrow category of driving) of any performance part, ANY proper LSD will far outperform an open diff in a performance driving environment. A 2 way might not be as good as a 1.5 way for performance driving but it will be far better than an open diff.