kush07

Great info. Thanks.

Ray S

Great Post Larry

I hope you don't mind if I use the graphic you posted with my students.

GTgears

Nice Larry,

Does your later information include the impact of an LSD on handling? I know that many of our customers go into the purchase of an LSD having no idea that it's going to change the handling of the vehicle and that they may need to make new suspension adjustments to the car and new behaviour adjustments to the driver to put the LSD to full use.

mark kibort

he who moves the sterring wheel less over a lap, wins.

JustinL

Interesting take on the subject. I think a further refinement to this could be changing the shapes of the curves you've drawn. Perhaps the concavity of the early part of the curve could be changed so that force goes up faster than the slip. Similarly, the drop-off after the plateau I think should be less sharp. Also the shape of these curves (not just the peak values) probably changes too between different car setups.



I'm basing this off the Pacejka formula for tires that is much better explained in this blog over at iracing. http://www.iracing.com/news/blog/the...odeling-tires/

jamuz

+1 on the ross bentley reference earlier. i think the suggestion in speed secrets was to find the front edge of the window and stay there as opposed to the ragged edge.

Jarez Mifkin

So true Larry. I've heard and been a believer of this since my first day at an Auto-x 16 years ago.

Subsribed and looking forward to part two.

And never did I believe it more than the first day I drove my RSR after tracking a 73 S for 4 years!

Larry Herman

Frank, I think that is an anomaly of the specific brand & type of tire. Hoosiers can be tough to drive because they are at the pinnicle of DOT construction, while lower end slicks like Pirelli, while certainly faster, are probably the most forgiving of the true racing slicks.

Larry Herman

The softer and more supple your suspension is, the less correction you need to have for grip, because there is less change in grip as the suspension moves. The really stiff cars need constant adjustments. Check out my "traffic at the Glen video". I am driving a stock GT3. Once I get into open track, you can see how smooth everything is, but I am very much at the limit.

Larry Herman

Not at all. Just give me credit.

SAM DACOSTA

Larry, I found your information to be very helpful and correct. Thanks for sharing your thoughts.

986

True. Jensen Button would be the best example.

beentherebaby

I don't think they give "credit" to people at the "poor house", do they?

cello

Great post Larry! Thanks for sharing. Look fwd to Ch 2.

Larry Herman

I completed a follow up article to this one. Click here.