Road Racing / Autocross & Time Attack Road Racing / AUTOX, HPDE, Time Attack

Got grip? Lifting a drive-wheel.

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Old Jul 23, 2003 | 06:27 AM
  #1  
Driven's Avatar
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Default Got grip? Lifting a drive-wheel.

Copyright Alex Groves and printroom.com

I'll be buying copies of these.





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Old Jul 23, 2003 | 09:34 AM
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Default Re: Got grip? Lifting a drive-wheel. (Driven)

looks like it's scraping the nose in the first pic, too..
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Old Jul 23, 2003 | 10:01 AM
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Default Re: Got grip? Lifting a drive-wheel. (martini)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by martini &raquo;</TD></TR><TR><TD CLASS="quote">looks like it's scraping the nose in the first pic, too..</TD></TR></TABLE>
it is.

the kart had to run 5" tyres due to a shortage on 6".

the side pods and the front nose cone dragged across the entire course.
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Old Jul 23, 2003 | 03:32 PM
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Default

those karts definatly have some grippy tires, try jamming your finger nail into one after a couple runs and you might not get it back. And I dont think lifting a drive wheel matters so much when you have a solid axle.
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Old Jul 23, 2003 | 05:38 PM
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Default Re: Got grip? Lifting a drive-wheel. (Driven)

Lifting the inside rear tire actually frees a kart up, turning it in more quickly. It counters the inherent understeer of the solid rear axle (and lack of differential effect).

We bought US-made knock-offs of an Italian design (Tony I think) and they worked pretty good the first year. The second year and beyond they became dogs and were slower even with blueprinted KT100s replacing the box-stock** versions. Problem was that the tubing appeared to be stressing past its yield point, softening up the chassis. They were awful - inconsistent, snap oversteering...yuck.

Kirk

** Interesting point: When you buy an "stock" Yamaha from one of the big retailers, you will discover that it has already been unboxed - and might even have been disassembled. They cherry pick the best of the crop from their stock, to turn into their higher-doller blueprinted versions.
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