We've got over 120 6000rpm launches with the quaife diff now without a problem, we just recently took it down to quaife for them to inspect it, whenthey took apart they asked if we had actually used it. A testment to their product, also we havn't broken one driveshaft as yet.
Clutch wise it depends whether you want an on /off clutch like a paddle or a sprung plate, we went on the mini2 Top Gear run last Saturday with the paddle and it was a pain at times.
We're fitting the Exedy moly flywheel and clutch with the next engine upgrade which will see us into non nitrous 12 sec 1/4 miles.
Slicks 11.77@115.92mph Street tyres 12.162 @ 119.02
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