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      04-16-2021, 09:53 AM   #45
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Quote:
Originally Posted by sc_tr0jan_m3 View Post
I'm testing the 3r's right now and have already bested my previous PB by over a second and theoretical best is still another second more.

It's an amazing tire but let's see how the life span is...
Running on E46? What was previous pb tire?
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      04-16-2021, 12:13 PM   #46
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Quote:
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Quote:
Originally Posted by sc_tr0jan_m3 View Post
I'm testing the 3r's right now and have already bested my previous PB by over a second and theoretical best is still another second more.

It's an amazing tire but let's see how the life span is...
Running on E46? What was previous pb tire?
NT01's and AR1's
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      04-16-2021, 02:05 PM   #47
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Originally Posted by CanAutM3 View Post
Feedback I received from friends who track Camaros is that the 3R is indeed an amazing tire in terms of performance. Their HUGE drawback is their life, with many saying they sometimes struggle to get a full track day out of them.
That life span could be a big concern then.

FormulaMMM and sc_tr0jan_m3 , appreciate if you can share the feedback as you have more track mileage with the 3R on our F8x platform.
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      04-16-2021, 02:11 PM   #48
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Originally Posted by fiveohwblow View Post
I’m currently running 265/285 re71’s and when I need to replace it appears the closest thing I’ll find (street only) is the RT660 in 275/295. I think. Hope.
Yeah the RT660 looks great. If I go that route not sure if I want 265 or 275 in the front. 275 is a little taller and wider which may feel a little sloppier on a 9.5 inch wheel and not sure if it'll rub on full lock. 295/35 is tall as hell hopefully doesn't rub under load!

Have a bit to decide so hopefully somebody can provide feedback.
Based on Apex's fitment guide (wheel offset and width have to be considered too), 275/30-19 and 305/30-19 are available from RT600 too (in my case I need the 19" wheels to clear my brakes).
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      04-16-2021, 02:15 PM   #49
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Quote:
Originally Posted by Bon F80 View Post
Based on Apex's fitment guide (wheel offset and width have to be considered too), 275/30-19 and 305/30-19 are available from RT600 too (in my case I need the 19" wheels to clear my brakes).
Always a great idea to utilize a tire calculator. Iím in the position where I have a set tire/size for the track E46M and the f82 is just street fun. Donít want rubbin in either scenario but less likely for me with f82. Learned that lesson the hard way one time. Never again.
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      04-16-2021, 02:33 PM   #50
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Originally Posted by Bon F80 View Post
That life span could be a big concern then.

FormulaMMM and sc_tr0jan_m3 , appreciate if you can share the feedback as you have more track mileage with the 3R on our F8x platform.
First set (at least fronts) will be limited per my previous post. My own fault. I'll probably end up with 4 new and keep the used rears for spares. I'd be headed into day 3 without hesitation if I hadn't destroyed the fronts.

Don't doubt it, but haven't met anyone who killed them in 1 day. Talked with a ZL1 1LE owner who was getting only a couple days and he bounced to the standard S3. Slowed down in exchange for more tire life and less expense.

One way to think about 3R -- believe they're Trofeo R's at Goodyear prices.
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      04-16-2021, 02:43 PM   #51
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Since we're on the theme of 3R's one of the local drivers in TX also wrote up this article for grassroots motorsports that keeps the comparisons going.

https://grassrootsmotorsports.com/ar...r-and-pirelli/

I've been told that the 3R's are as fast as R7 Hoosiers. I'm still early in my personal testing but they are damn quick in my e46 m3 and I'm planning on using them as a means to get more power and run a wider tire for TT4 class in NASA.

Do I expect NT01 levels of durability? No, but everything's a compromise.
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      04-16-2021, 02:51 PM   #52
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Quote:
Originally Posted by sc_tr0jan_m3 View Post
Since we're on the theme of 3R's one of the local drivers in TX also wrote up this article for grassroots motorsports that keeps the comparisons going.

https://grassrootsmotorsports.com/ar...r-and-pirelli/

I've been told that the 3R's are as fast as R7 Hoosiers. I'm still early in my personal testing but they are damn quick in my e46 m3 and I'm planning on using them as a means to get more power and run a wider tire for TT4 class in NASA.

Do I expect NT01 levels of durability? No, but everything's a compromise.
Good read. Glad I'm not the only one who couldn't manage to keep Trofeo R in the zone. 3R as fast and more consistent sounds about right.
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      04-16-2021, 04:58 PM   #53
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Just received my RT660 265/35 295/35.

Waiting on my Richland forged gt4 19x9.5 19x10.5 wheels. Hoping the rear doesn't rub with the aggressive offsets of these but I think it should be OK.

I'll make a post with some impressions in a few weeks after I get an event under my belt with them. I'm doing Watkins on 5/13 but don't think wheels will be here by then. But I'll def make a post once I run them!
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      04-16-2021, 08:21 PM   #54
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compared to Yoko A052 295 square, the GY SC3R in 285 square were equally fast and didn't fall off as quick. Yoko would start to fall off after 6 sessions, but GY maybe 10. Fast tires both of them!

you guys running staggered must have deep wallets
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      04-17-2021, 02:13 AM   #55
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Quote:
Originally Posted by Bon F80 View Post
Based on Apex's fitment guide... 275/30-19 and 305/30-19 are available from RT600 too
I think those tire sizes would be great for wheels that were 19x10/11. In RT660 specifically the 275/30 tread width is 10.2 and 305/30 is 11.4! For my 19x9.5/10.5 that tread width is much bigger than my wheel width. Will probably feel a little sloppy on track.

Quote:
Originally Posted by biofluke View Post
Just received my RT660 265/35 295/35...
That looks like the best sizes for 19x9.5/10.5 in the RT660. Tread widths are really close to wheel width. Look forward to any feedback
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