Versingetrix
Versingetrix New Reader
11/20/09 3:28 p.m.

So the car is 95 VR6 Jetta Rims are 17” OZ’s, rubber is Azenis 615’s, with a Nuespeed 28mm rear adjustable bar that I put in this spring. The RSB really made the car neutral with some very predictable trail brake/lift off rotation and put the car into a great space feel wise, it is set on softest setting. Alignment is the maximum that I can get with stock settings, of 2+ degrees on the fronts, 1/16 toe out. Then...I added a WaveTrac LSD and the car is great except in transition corners like 5a & 5b at Pacific Raceways. This is a 60+ left followed by flowing sharp’ish right hand turn. I am getting a lot of over steer particularly in this turn sequence, where the car was very neutral before. I can feel the rear getting a little out in other turns, but it is that left right combo that is a wee hairy.

I have H&R cupkit that is going away over the winter, and want to know what I need to do spring wise on the new setup to make the car not wallow, which induced a spin into 5b and was skittish all day through there, and I would like to plant the rear end better. I am thinking the Ground control coil sleeves, Koni sports, and spring rates of 400lb front and 340lb rear. It seems that with all the traction in the front right now that I am getting a very swishy rear end, and transition side to side is really exacerbated, making the car feel hard to catch as the transition is fairly sudden.

Thoughts anyone? I know the Jetta is going to have a little more wallow than a GTi would due to the weight out back, but how to counter as much of it as I can?

Thanks, Scott

erohslc
erohslc Reader
11/20/09 5:50 p.m.

Wear gloves when you handle LSD, unless you want to go on a trip ;)

Seriously, if you are good once the suspension settles, then sounds like you should soften the rear shocks a bit for the transitions. OTOH, if the oversteer persists in steady state, then either increase front roll stiffness a bit, or decrease rear roll stiffness. Of course, if you are getting new stiffer springs, might as well just wait and tune from there.

Carter

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