Race Tracking Your Supra - Information exchange

[razorlab]

By the way I wear out that same spot on all my front tires regardless of car or tire brand. I have done it to Michelin Primacy, Cup2, RT660, GT Radial SX2, Federal 595 RS-RR using a GR86, GR Corolla and GR Supra. Always thought it was happening due to too much understeer as that part of the tire slides towards the outside.

Only reason I raised the wear pattern is that it doesn't happen to my CRS.

After one day on CRS:

Five days and heat cycled out:

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[Evolution]

My RT660s are worn on the inside like that. The rest of the tire isnt even down to the wear bars yet.

 

[razorlab]

My RT660s are worn on the inside like that. The rest of the tire isnt even down to the wear bars yet.

After one day? I think people are glossing over that fact.

 

[Evolution]

After one day? I think people are glossing over that fact.

I noticed it after track day #2. Could have happened after the first track day and I didnt even notice. I rotate my tires after every event too.

 

[razorlab]

I noticed it after track day #2. Could have happened after the first track day and I didnt even notice. I rotate my tires after every event too.

Got it. Still, the CRS don't even show that over their whole usable lifespan for me. I also rotate my tires after every event.

 

[Evolution]

Got it. Still, the CRS don't even show that over their whole usable lifespan for me. I also rotate my tires after every event.

Yet another reason for me to switch over to them.... I only got 4 track days out of the 660s before the inside was down to threads. Sucks cause the rest of the tire is still good. Not even heat cycled out.

On another subject, what wheel weights did you say to get? The ones that dont melt off.

 

[AndyK5]

Got it. Still, the CRS don't even show that over their whole usable lifespan for me. I also rotate my tires after every event.

Rotate as in front to back left to right or take tire off wheel and swap inside/outside?

and yes, I have done similar damage to a lot of tires in 1 track day, not saying yours is due to the same issue. Maybe Nankangs are resistant to that which would make them very attractive to me.

 

[razorlab]

On another subject, what wheel weights did you say to get? The ones that dont melt off.

Hofmann Power Weight Type 380

 

[razorlab]

Rotate as in front to back left to right or take tire off wheel and swap inside/outside?

Traditional rotation, not flipping on the wheel. My tires heat cycle out before the tread is gone so it's not worth the cost to me.

I think maybe the AR1's just can't handle the shitty light switch modulation of the CSG pads. Another minus for CSG pads.

 

[kaj]

Yet another reason for me to switch over to them.... I only got 4 track days out of the 660s before the inside was down to threads. Sucks cause the rest of the tire is still good. Not even heat cycled out.

On another subject, what wheel weights did you say to get? The ones that dont melt off.

It's crazy that the CRS is a gripier tire and wears longer.

 

[kaj]

Traditional rotation, not flipping on the wheel. My tires heat cycle out before the tread is gone so it's not worth the cost to me.

I think maybe the AR1's just can't handle the shitty light switch modulation of the CSG pads. Another minus for CSG pads.

Funny that you mentioned the lack of modulation with the CSG pads. I keep talking to people that say that using them as like throwing out the boat anchor. I think some of them are confusing initial bite with overall breaking power. Most people, until they get serious, never even bring up modulation.

 

[razorlab]

Funny that you mentioned the lack of modulation with the CSG pads. I keep talking to people that say that using them as like throwing out the boat anchor. I think some of them are confusing initial bite with overall breaking power. Most people, until they get serious, never even bring up modulation.

It's so bad.

 

[AHP]

Except they are off pace by a good margin compared to every single super 200tw that is used in Time Attack, and it doesn't matter because they are 100tw. Not allowed.

Fair enough and I forgot they were rated as a 100TW. Most of the super 200s don't come in the sizes I need so my options are pretty slim.

 

[AndyK5]

It's so bad.

When I used them I actually thought their initial bite was much lower than Carbotech 12s and were easy to modulate. However this was on a 2750lb GR86 with tiny brakes not a 3400lb Supra and Brembo calipers. I did not want to splurge $1000 this time around.

 

[kaj]

....I did not want to splurge $1000 this time around.

Kicking everyone's butt AND having an extra $500 in your pocket is a very nice thing.

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