Anyone tried used slicks?

[shogun32]

A couple places sell Porsche Cup or Ferrari Challenge take-offs for $150/tire. On a lark I ordered a set to see how they are and they seem rather more cooked than I'd like to see.

Anyone tried these and gotten more than a day's worth of HPDE session (~30min, 5 rounds) out of them? Did you have to use tire warmers?

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[Rapid Red]

A couple places sell Porsche Cup or Ferrari Challenge take-offs for $150/tire. On a lark I ordered a set to see how they are and they seem rather more cooked than I'd like to see.

Anyone tried these and gotten more than a day's worth of HPDE session (~30min, 5 rounds) out of them? Did you have to use tire warmers?

Sounds about right.

 

[fatbillybob]

Plenty used race tire dealers out there. The only think you have to worry about with slicks is they do not like water, warm them on track before you hit gas, you can’t drive home to track. You can get a few weekends as performance drops off. If you want to win races you need new tires.

Best reliable guy for used race tires
https://www.jbracingtires.net/

 

[TeeLew]

A couple places sell Porsche Cup or Ferrari Challenge take-offs for $150/tire. On a lark I ordered a set to see how they are and they seem rather more cooked than I'd like to see.

Anyone tried these and gotten more than a day's worth of HPDE session (~30min, 5 rounds) out of them? Did you have to use tire warmers?

Honestly, that price is a bit steep. What sizes are you running?

 

[shogun32]

Honestly, that price is a bit steep. What sizes are you running?

275/35/19 hence the Ferrari Challenge as a source. Most of the other cars run 18" in 285 or 305 while Porsche cup guys run 325 rears.

Yeah I probably won't be buying 19" again since they are hard to find and thus likely to be worse quality. I think I'll just stick to Cup2 and Supercar3/R which I can find for about $1000 a set.

@APEX Race Parts is supposed to have some Black Friday wheels sales soon so looking forward to that.

 

[fatbillybob]

I found the most tire variety in 18" wheels. The apex ec7 seems to be the value wheel for s550s

 

[Michael_vroomvroom]

I found the most tire variety in 18" wheels. The apex ec7 seems to be the value wheel for s550s

What width would you recommend for tracking and tire availability/price?

 

[D K]

used slicks are a great way to get a feel for the car how it would feel on brand new A7s and such.

also, much more heat capacity than an R compound, so more consistent over time.

 

[fatbillybob]

What width would you recommend for tracking and tire availability/price?

I running 295 18's square. I only run 1 SCCA class tire the hoosier A7 for sprint racing. They are 1600+ a set new. I do not run used tires.

 

[fatbillybob]

used slicks are a great way to get a feel for the car how it would feel on brand new A7s and such.

also, much more heat capacity than an R compound, so more consistent over time.

Early in my driving using used slicks I found the performance to be all over the place. I think age of old rubber and use of that rubber made for unpredictable tires. Racing costs lots of money because development costs are so high. Everytime you do a heat cycle any tire gets slower. So you make some changes and monitor laptimes and have to factor in a degrading tire. And at some point the tire is so bad the data becomes useless. So if you got money you develop on new tires with each change. Now that is money! The only consistency I have seen in tires is a new tire. Everytime I put on a new set of tires I know what to expect.

But just about any slick is faster than a street tire. So an old slick might be 100 bucks and you could be seconds faster than your street tire for 1/2 the cost.

 

[Michael_vroomvroom]

I running 295 18's square. I only run 1 SCCA class tire the hoosier A7 for sprint racing. They are 1600+ a set new. I do not run used tires.

That means a rim width of 11 inches it looks like then. Thank you.

 

[TeeLew]

Early in my driving using used slicks I found the performance to be all over the place. I think age of old rubber and use of that rubber made for unpredictable tires.

The biggie for me is that you don't know the handling balance of the car they came off. If that car had a 5/5 imbalance one way or the other, you can bet that set of tires is going to be garbage on the end that was getting beat up. If they come off of a car with a decent balance, they might be fine, but if someone has just flogged the dog-piss out of them, then don't expect much.

 

[fatbillybob]

That means a rim width of 11 inches it looks like then. Thank you.

Yes and spacers.

 

[Michael_vroomvroom]

Yes and spacers.

Ah, thanks. What size spacers did you need?

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