TwinTurbo.NET: Nissan 300ZX forum - That wouldn't be the case and here's the technical on it>>>
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Subject That wouldn't be the case and here's the technical on it>>>
     
Posted by AshsZ (Fab Whore, Ph.D) on March 28, 2002 at 1:51 PM
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In Reply To Good job..... posted by RSR on March 28, 2002 at 10:11 AM
     
Message static friction is a far stronger force than dynamic friction. Meaning basically, it is much harder to get a heavy box on the ground to slide than to maintain the slide once it is moving. What this translates to is when your clutch starts to slip, it goes. It doesn't slip and the grab again until you lower the force making it slip (let your foot off the pedal).

When my clutch was overheated a week ago in some highway racing, third, fourth and fifth gear would slip if I gave it WOT. It would slip and the engine would just overrev, delivering not to the wheels.

With a beat clutch, once it heats up and slips, it will continue to slip until it cools down. This is what I experienced. If it were slipping like you suggest, it wouldn't have held 3rd or 4th gear at all, but it did.

What you are saying makes perfect sense, although it isn't the case in my launch. The track had excellent traction the two runs I had and the tires never spun. On the street, 1st gear is waaaay loose when boost kicks in, but on the track it was grabbing very nicely.

: ...that's great performance on street radials. You know, though, it's possible that the marginal clutch is what's helping you hook up on street tires. I wouldn't be surprised if the better clutch causes wheel spin because it transfers all of the torque, unlike the marginal clutch.

: Drag racing is one big puzzle like that....anyway, keep us informed.

: Later,
: RSR

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