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odd tuck-in on lift throttle

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Old Aug 31, 2002 | 05:03 PM
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Default odd tuck-in on lift throttle

Has anybody noticed the weird sensation that when you lift throttle in a corner, the front tucks drastically? I'm guessing it's coming from a toe-in to a toe-out bushing compliance at the rear during on/off throttle. Is there any aftermarket bushing that will fix this?
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Old Aug 31, 2002 | 05:40 PM
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I suspect it's more the rear suspension geometry than bushing compliance. I noticed it the first time I drove the car, and it reminded me of the tuck-in that 911's are infamous for.

My solution is to just stay in the throttle. <g>

Tim
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Old Aug 31, 2002 | 05:43 PM
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uhhhh, just my guess, but when you lift the throttle in a corner too suddenly, the back end will lift up and swing out, thus leaving the impression that the front end is tucking under.

slow in... fast out. I wouldn't do too much lifting in a corner if I can't help it.
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Old Aug 31, 2002 | 06:39 PM
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[QUOTE]Originally posted by dan02
[B]Has anybody noticed the weird sensation that when you lift throttle in a corner, the front tucks drastically?
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Old Aug 31, 2002 | 06:40 PM
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This must be your first rwd. This is one of its distinguishing characteristics. It is called throttle steering. You should look into a driving course before you learn any more of the these characteristics "the hard way".

Regards
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Old Aug 31, 2002 | 06:52 PM
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It isn't my first rwd vehicle, and other rwd vehicles don't do this. The Vette, Porsche 944, and NSX tuck-in levels are not nearly as high as the S and they are all rwd. Yes, they all can be coaxed into lift throttle oversteer, but what I'm talking about can be felt way below the limit; around 0.2 to 0.3 g's. It's a tuck-in compliant feeling that can be felt on most any car, but it is exceptionally pronounced on the S.
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Old Aug 31, 2002 | 07:10 PM
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It's a designed handling characteristic. If you want understeer, a stiffer front swaybar will quiet the effect.
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Old Aug 31, 2002 | 07:20 PM
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When you lift off the pedal in a corner, you unload the rear by shifting the balance of the car towards the front. The rear tires then do not grip and you may spin if you are not careful. As others have suggested a good driving course is always recommended.
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Old Aug 31, 2002 | 07:23 PM
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[QUOTE]Originally posted by dan02
[B]It isn't my first rwd vehicle, and other rwd vehicles don't do this.
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Old Aug 31, 2002 | 11:15 PM
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Thanks for the input. Your explanation makes sense.
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