16 inch wheels?

[NoHachi]

Quote:"Wider tires require a smaller slip angles change to produce cornering forces. THAT is what makes the difference in lateral grip, longitudal grip, stability and driving feel. Contact patch size has nothing to do with it."

Where we commenting on the same width tyres not wider tyres?

Your example mentioned tires with different widths, not mine. I just gave you the physical explanation of why you noticed heavier steering feel width with the 16inch setup. It is the force required to generate a slipangle on the 225 wide tire, not the contactpatch size.

Quote:If you want to go on about slip angles i suggest you read lots of Lotus's early 80's information on this. Mostly geometry and track , roll centers , camber , caster has far greater effect on slip angle than just tyre size.

Now you are just guessing... Maybe its better to first understand what each of these terms means before you throw them around. Everything starts at the tire and its slipangle characteristics. The rest of the car is designed so that it makes the best use of the performance envelope they allow. Honestly, you seem to have a serious interest in these matters; do yourself a favour and stop accepting dubious internet resources and start reading some proven references. You will not find these on the net but in a library. Sadly, the material doesn't lend itself well to a popular science type of approach, so a decent background in physics and mathematics is a minimum requirement.

Quote:the brake size on the N2 cars at that stage was locked at that stage

Any proof of this or just a guess? Link?

Quote:maybe give us the maths on the standard car vs a 16' rims size car of equal width

No I can't..that is the point I'm trying to make here. I've seen the calcs, have a masters degree in engineering, but am nowhere near qualified enough to do this stuff. It takes a serious specialisation in tire dynamics.

16s might be faster, they might not be faster. It needs some serious testing to determine what is the case and under which circumstances. Searching for opinions on a forum like this is a start, but adding misinformation to any of these user experiences is always a bad idea.