[98_1LE]

I seem to recall that max lateral G's of friction is 1 G, and that to go above that adhesion is required.

If true I interpret this to mean that typical street tires would be limited to 1.0 G.

Am I nuts, close, or correct?

[Ojustracing]

I seem to recall that max lateral G's of friction is 1 G, and that to go above that adhesion is required.

If true I interpret this to mean that typical street tires would be limited to 1.0 G.

Am I nuts, close, or correct?

I have seen street tires go over 1g. Just look at what Danny P did. The track was not completely dry either.

OLOA 06 Dry skid pad

those results were done on a 2 lap average and one of his lap was above 1.12. On street tires that had seen 4500 miles of use.

John

[John_D.]

I have seen street tires go over 1g. Just look at what Danny P did. The track was not completely dry either.

OLOA 06 Dry skid pad

A little off-topic, but I found it interesting that a Viper and a Vette scored below a Grand Cherokee (24th place)... (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif)

On topic, I think one factor is going to be the interaction of irregular surfaces. The rubber can deform into pits/crevices in the track surface and create a bit of a shearing effect on a small scale.

[Ojustracing]

I have seen street tires go over 1g. Just look at what Danny P did. The track was not completely dry either.

OLOA 06 Dry skid pad

A little off-topic, but I found it interesting that a Viper and a Vette scored below a Grand Cherokee (24th place)... (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif)

On topic, I think one factor is going to be the interaction of irregular surfaces. The rubber can deform into pits/crevices in the track surface and create a bit of a shearing effect on a small scale.

John you are very observant. Yes certain cars did better than others. Basically it came down to driver at these events. Just because A car is capable of X in a magazine doenst mean that the car owner can reach x also. These events were done with a 2 lap clock/counterclock wise average. Some people have never been on the skid pad before other its there job. I personaly did really good counterclock wise because you can see the edge of the track. I screwed up going clock wise and went a bit wide and lost a ton of time. Spinning the car intenially between a direction change might not of been the best thing to do, because I was laughing like a little kid in my helmet. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/rolleyes.gif)

Here's another look at cars during a wet-skid pad, Look what is first a 92 dodge daytona (IMG:http://www.frrax.com/rrforum/style_emoticons/default/ph34r.gif)
wet skid pad

John

This post has been edited by Ojustracing: Aug 31 2006, 03:25 AM