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Rear wheel hop under acceleration

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Old 12-12-2004, 12:20 PM
  #46  
SHRKBIT
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Originally Posted by heinrich
Tyre compound may be a big factor. SHRKBIT, don't both your cars have large wheels?
No, like I wrote, "I never had it happen in my S4 automatic. It happens in both my 5-speeds on street tires, regardless of wheel size." I've had several sets of wheels and tires on each of my cars.
Old 12-12-2004, 03:37 PM
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Vlocity
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I have massive wheel hop in my 85 5 speed with LSD (2.75) if I am very aggressive. If I pedal the launch a bit I can get a nice hook up with out the hop.

I always was curious what would happen if I were to pin the rear axel. It's one of those things I figured I would have to endure with the Weisach rear axel?

Thoughts?


Ken
Old 12-12-2004, 03:49 PM
  #48  
Jim_H
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Originally Posted by SHRKBIT
No, like I wrote, "I never had it happen in my S4 automatic. It happens in both my 5-speeds on street tires, regardless of wheel size." I've had several sets of wheels and tires on each of my cars.
Same here. S4 auto, no wheel hop. Both GT's regardless of wheel size, wheel hop.
Old 12-12-2004, 04:07 PM
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Ian928
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It is funny that this thread came up now, I was just looking at a manual S4 and one thing I didn't like was the wheel hop when spinning in the wet. Not very graceful for such a expensive car! I have always considered wheel hop something for the cheap GM cars with solid rear axle, not expensive German engineering.

I have never experienced this with my own car, just a smooth transition from nongrip to grip. I have konis. I am not sure if the S4 had LSD.
Old 12-19-2004, 07:28 PM
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SHRKBIT
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Originally Posted by Ian928
It is funny that this thread came up now, I was just looking at a manual S4 and one thing I didn't like was the wheel hop when spinning in the wet.
I should have mentioned, you can reduce and eliminate the wheel hop by adjusting throttle inputs.
Old 12-19-2004, 08:53 PM
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mspiegle
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actually.. now that I think of it...

When I first got my car (bone stock 86.5 5spd), it had LOTS of wheel hop. In fact, I took off hard from a light once, and in the midst of the wheel hop - the pssgr side CV-joint grenaded (assuming it was from additional stress of the hopping)

After I got the supercharger (extra 70hp @ the crank or so), i had significantly less wheel hop, but it was still there.

I ditched my rain/snow/road tires, and got a pair of bfg t/a KDs for the rear (best dry traction street tire i've ever used btw), and I can't think of a time i've had wheel hop since then. I used to fear the wheel hop because of the cv-joint incident, but no longer.
Old 12-19-2004, 10:01 PM
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justin
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Well I hardly ever get wheel hop in the dry, just when its wet out.
Old 12-19-2004, 11:19 PM
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Originally Posted by SHRKBIT
I should have mentioned, you can reduce and eliminate the wheel hop by adjusting throttle inputs.
Really?

I know spinning the wheels is not the most effective way of getting along, I just have a feeling that something is wrong when it happens. I also have a feeling it has something to do with the "give" in the Weissach axle.



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