Tyre/Wheel Size/Camber Advice

[Stangker]

Hello,

I'm developing a mustang for track and I'm wanting to strike a nice balance of reasonable running costs without a huge compromise in performance.

For suspension I'm going to go with MCA Pro Circuits. I'm wondering how much rubber I actually need and what size width wheel to put it on.

Koya have plenty of 18x10, 10.5 and 11 variants that fit with the factory brembos.

I'm wondering if I should go for 11 and 305 or 10 and 285. Assuming the same tyre type, is there going to be a noticeable difference in grip between the 2?

Also, I will eventually run 200tw semi slicks but I want to prioritise seat time in the first year or 2 whilst learning the car, so I'm looking for recommendations on durable tyres that will last 8-10 track days (stock wheels will be put back on in between)

For track camber, I'm thinking -3 up front and -1.7 rear. But if I should run more or less let me know and I'll pick my offsets accordingly for a balance of fitment and function.

Thanks,

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[Grintch]

It's all a question of how much you want to/can pay verses how fast you want to go. As I don't know the prices in Australia, that is impossible for me to judge.
Lets start with camber. I was running max camber with my suspension which was -2.7 F/-2.0 R. Tire wear told me more camber in front would be good, the rear maybe a little more too. With serious suspension and very sticky tires I have heard as much as -3.5 F and -2.5 R is what you want. That seemed to be a reasonable match to the wear I was seeing with it turned up some for a more grippy tire.

In the US 18" wheel options that fit over big brakes are limited, and maybe more expensive than common 19" options. But 18" tires are cheaper. But again getting the big Mustang sizes in 18" tires is often difficult.

In general a sticker compound/better tires will matter more than a bigger tire. And smaller tires are cheaper. If you can get race take offs of the proper size, the best cost and performance is usually take off slicks. I don't know if that is a market in Australia or what race series would have suitable tires.

Big 11" wheels and 305 tires verses 10" wheels and 285 tires is especially tricky. 305's are more particular about the suspension setup. They are more expensive. They are faster for an equivalent tire. So you you want max performance or a lower price? So far I have been sticking to 285, but when the prices go up I start looking at 275's and the lesser known tires. When a good sale is going on I look at 305's and 11" wheels. The fact that they are not an easy bolt on (require new studs) has been the deciding factor so far.