[popcornten]

Long story short I may be moving from my 981.1 Boxster S to an M2C. I've been very happy with my Boxster being able to go down from 20s to 18s and running a factory size 235/265 RE71R - i've been pleased with the tire.

I know that I'll need to keep 19's to clear the brakes and prefer to keep factory tire sizes to make sure all the sensors work right and I know larger front tires may require suspension components or spacers to fit which I'd like to avoid.

What wheel options would you recommend to fit the factory sized 245/265 RE71R that appears to be available on DiscountTire? Preferably keeping the factory 19x9 and 19x10, it looks like the Apex options don't line up.

Also regarding brakes, I ran PFC-08 pads on the Boxster and was very happy with their bite and longevity. Am I best off running regular rotors with Pagid Yellows and just upgrade the fluid. Will that work fine for Intermediate level track days? 2:36 best ever for reference at COTA in my 981.1 BS

Thanks!

[5.M0NSTER]

Originally Posted by popcornten

Long story short I may be moving from my 981.1 Boxster S to an M2C. I've been very happy with my Boxster being able to go down from 20s to 18s and running a factory size 235/265 RE71R - i've been pleased with the tire.

I know that I'll need to keep 19's to clear the brakes and prefer to keep factory tire sizes to make sure all the sensors work right and I know larger front tires may require suspension components or spacers to fit which I'd like to avoid.

What wheel options would you recommend to fit the factory sized 245/265 RE71R that appears to be available on DiscountTire? Preferably keeping the factory 19x9 and 19x10, it looks like the Apex options don't line up.

Also regarding brakes, I ran PFC-08 pads on the Boxster and was very happy with their bite and longevity. Am I best off running regular rotors with Pagid Yellows and just upgrade the fluid. Will that work fine for Intermediate level track days? 2:36 best ever for reference at COTA in my 981.1 BS

Thanks!

Can't comment of wheels. Have you considered getting a replica OE set in the same sizes if you want to swap wheels?

I use PFC08 and SRF fluid with great success on my M2. I have Cup2s on OE wheels in factory sizes. Damn near 7:5X on the 'Ring.

[OG Shark]

Originally Posted by popcornten

Long story short I may be moving from my 981.1 Boxster S to an M2C. I've been very happy with my Boxster being able to go down from 20s to 18s and running a factory size 235/265 RE71R - i've been pleased with the tire.

I know that I'll need to keep 19's to clear the brakes and prefer to keep factory tire sizes to make sure all the sensors work right and I know larger front tires may require suspension components or spacers to fit which I'd like to avoid.

What wheel options would you recommend to fit the factory sized 245/265 RE71R that appears to be available on DiscountTire? Preferably keeping the factory 19x9 and 19x10, it looks like the Apex options don't line up.

Also regarding brakes, I ran PFC-08 pads on the Boxster and was very happy with their bite and longevity. Am I best off running regular rotors with Pagid Yellows and just upgrade the fluid. Will that work fine for Intermediate level track days? 2:36 best ever for reference at COTA in my 981.1 BS

Thanks!

Welcome (maybe) to the F87 world! With the proper offsets you can go with a wider front wheel without having to use a spacer - as well as a wider rear if that is of interest. I understand the hesitancy of using spacers on the track too - just sounds like should be weaker than mounting straight to the rotor. But really they shouldn't be - spacers regularly see track time and even come on some factory race cars.

I would personally go for more rubber on the front - at least to get to a square setup at minimum. With a comp having a little more rubber in the rear is not a bad thing either - something like a 275/295 setup typically has good results and can fit well on a stock car. Being stuck to 19' might require a little more work to find the right fitment but you should be able to find something that fits well on your car and gives you a bit more tire than the stock setup.

Going wider should not trip up anything with the car. Need to watch for the rolling diameter difference from front to rear though - if the front is taller than it will kick in DSC randomly. If you run DSC fully off then it's not an issue - but if you want to use it then would avoid this.

Brakes - Castrol SRF & a good track pad can work - just watch the pad wear and for any sign of fade. With COTA being hard on brakes it is not completely uncommon to start seeing fade at that pace - certainly doesn't have to happen but something to really keep aware of. Going to depend a lot on your technique as well. Worth a try if you are not keen on moving to a BBK. A BBK does have its advantages - besides fade resistance another big one on a comp is being able to run 18" wheels - but definitely a steep entry point.

Unfortunately the RE71 is discontinued. Might look at the yoko A0052 or maybe the Falken 660.

[popcornten]

Originally Posted by 5.M0NSTER

Can't comment of wheels. Have you considered getting a replica OE set in the same sizes if you want to swap wheels?

I use PFC08 and SRF fluid with great success on my M2. I have Cup2s on OE wheels in factory sizes. Damn near 7:5X on the 'Ring.

Yea I was also considering getting OG M2 take offs and running those on track.

I don’t see that PFC makes pads for the M2C with the bigger brakes but maybe I just can’t find them? I was happy with them on my 981

[Daytona_550]

Originally Posted by OG Shark

...Unfortunately the RE71 is discontinued. Might look at the yoko A0052 or maybe the Falken 660.

RE71R discontinued? Can you share more details please? (I have an order for two front tires 255/35-19 with Discount Tire and they are supposed to be in this week)

[David.m]

Originally Posted by Daytona_550

RE71R discontinued? Can you share more details please? (I have an order for two front tires 255/35-19 with Discount Tire and they are supposed to be in this week)

RE71R has been replaced by RE71RS

[detroitm2]

Apex has a good OEM+ wheel set for the M2C. I'd suggest starting there.

Also, don't worry about spacers. These arent the types kinds were running back in the 90s. These are all hub centric spacers that do not put additional stress on components.

Also, if you get the right offsets, you won't need spacers at all, even with wider tires. And I'd highly recommend wider tires if you plan on using them for just the track.

I run 265/35r18 square on my LCI, and my next set of tires will probably be 275.

[Daytona_550]

Originally Posted by David.m

RE71R has been replaced by RE71RS

RE71RS are out in some countries but don't think they are here in the US yet.

[CSBM5]

Originally Posted by Daytona_550

RE71RS are out in some countries but don't think they are here in the US yet.

Supposedly the RE-71RS isn't coming to the US market...this discussion has been ongoing elsewhere on this board and others, but it's nothing official yet. Here's a recent post on the subject.

As an aside, so far there doesn't appear to be any follow-on tires from BFG for the Rival/Rival S/Rival S1.5 either. In addition the R1/R1S is apparently being discontinued also according to Tirerack (BFG never updated the R1S nor added sizes larger than 18", so the writing was on the wall).

[Kelse92]

Originally Posted by Daytona_550

RE71RS are out in some countries but don't think they are here in the US yet.

I heard they are never coming to the US either.
Best options are definitely the A052 and Rt660 right now.

[popcornten]

Originally Posted by Kelse92

I heard they are never coming to the US either.
Best options are definitely the A052 and Rt660 right now.

Thanks that’s very helpful, looks like the RT660 are the only option that come in the stock 245/265 fitment. How do those hold up compared to the RE71 I’m used to?

Are the standard Pilot Super Sports trash on track compared to the RE71/RT660 style of tire? The RE71 was a massive upgrade in resistance to overheating and chunking compared to the first tires I ever tracked which were PZeros. Does anybody run the MPSS on track?

[M1500Z]

I've been running on Goodyear Supercar 3s in stock sizes (245/35 & 265/35). For me, they're seeming to hold up quite well with 4 days at COTA. I get the impression from these boards they are not as fast as the RE71. Probably similar to cup 2s with better life.

That aside, unless you just really want to explore the limits of the car on stock tire sizes, go bigger—the car is too heavy for a 245 front. Or, at a minimum, get a lot more camber at a minimum. I'm sure you'll see browsing around here that everyone is running more than -3º (myself included).

I run Pagid RS29s with SRF without issues—although the Pagids don't bite high up in the pedal. I also run 12mm fr and 10mm rr spacers ��.

[GasBurnlife(landapanda)]

Originally Posted by David.m

RE71R has been replaced by RE71RS

That is correct, but Bridgestone has no plans to bring the RS tire to the us, based on my call with Tirerack. You can still have them shipped if you are willing to foot the S&H from Japan, Australia or New Zealand.

[GasBurnlife(landapanda)]

Originally Posted by M1500Z

I've been running on Goodyear Supercar 3s in stock sizes (245/35 & 265/35). They come in stock sizes and for me are seeming to hold up quite well with 4 days at COTA. I get the impression from these boards they are not as fast as the RE71. Probably similar to cup 2s with better life.

That aside, unless you just really want to explore the limits of the car on stock tire sizes, go bigger—the car is too heavy for a 245 front. Or, at a minimum, get a lot more camber at a minimum. I'm sure you'll see browsing around here that everyone is running more than -3º (myself included).

I run Pagid RS29s with SRF without issues—although the Pagids don't bite high up in the pedal. I also run 12mm fr and 10mm rr spacers ��.

BTW, you can easily run 265/285 on stock rims. I run the RE71Rs in these sizes. However, since these have now been discontinued, I am moving to a 275 18" setup per feedback from Bimmerworld.

[Kuervers]

Originally Posted by landapanda

BTW, you can easily run 265/285 on stock rims. I run the RE71Rs in these sizes. However, since these have now been discontinued, I am moving to a 275 18" setup per feedback from Bimmerworld.

Im running same size re-71r's work well excellent balance had one track day on stock wheels before mounting them on 9.5/10.5 titan 7 wheel and their wearing better
-apex
-titan-7
-richland
Seem to be most popular with proper offsets for M2. If i you could fit 275/35 square i might have tried that. Need camber plates to fit 265/35 up front

[dvas]

I think if you do a lot of track days (greater than 5 or 6 a year) and are not doing time trials, where a given single lap time is most important, a square setup is the way to go. Allows rotation of tires between every track day to prolong your tire life, at the cost of marginally slower lap times.

I've been running my 2017 M2 with 275/35 18 square on Apex 18X10 wheels with pretty good success.

[M1500Z]

Originally Posted by dvas

I think if you do a lot of track days (greater than 5 or 6 a year) and are not doing time trials, where a given single lap time is most important, a square setup is the way to go. Allows rotation of tires between every track day to prolong your tire life, at the cost of marginally slower lap times.

I've been running my 2017 M2 with 275/35 18 square on Apex 18X10 wheels with pretty good success.

This is my plan—10.5 w/ 275/35 18 square soon enough (need APs). I really do wonder what the delta is between this and a staggered 275/295 setup is.

[Kelse92]

Originally Posted by popcornten

Thanks that’s very helpful, looks like the RT660 are the only option that come in the stock 245/265 fitment. How do those hold up compared to the RE71 I’m used to?

Are the standard Pilot Super Sports trash on track compared to the RE71/RT660 style of tire? The RE71 was a massive upgrade in resistance to overheating and chunking compared to the first tires I ever tracked which were PZeros. Does anybody run the MPSS on track?

I agree with others that a 265/285 fitment is probably a better choice as these cars are heavy, but you could go either way.

As far as the Super Sports go they are just the older version of that tire, the 4S is newer and a little more track-oriented. They aren't however going to be as track/autocross focused as the RE71 or RT660 which should both be very comparable to each other. I haven't yet used the Rt660 on track but in my limited autocross experience with them last year on a Subaru BRZ they wore very well.

[popcornten]

Originally Posted by Kelse92

I agree with others that a 265/285 fitment is probably a better choice as these cars are heavy, but you could go either way.

As far as the Super Sports go they are just the older version of that tire, the 4S is newer and a little more track-oriented. They aren't however going to be as track/autocross focused as the RE71 or RT660 which should both be very comparable to each other. I haven't yet used the Rt660 on track but in my limited autocross experience with them last year on a Subaru BRZ they wore very well.

I think the ticket for me is going to be OG M2 wheels and factory 245/265 sizes with the RT660!

I never did any suspension/camber plates or GT3 control arms or anything on the Boxster and ran 235/265 factory sizes and it was all the fun and enjoyment I ever needed. Ran circles around plenty of much more expensive cars with much too serious drivers with my PFC pads and RE71 tires as the only mod.

[Kelse92]

Originally Posted by popcornten

I think the ticket for me is going to be OG M2 wheels and factory 245/265 sizes with the RT660!

I never did any suspension/camber plates or GT3 control arms or anything on the Boxster and ran 235/265 factory sizes and it was all the fun and enjoyment I ever needed. Ran circles around plenty of much more expensive cars with much too serious drivers with my PFC pads and RE71 tires as the only mod.

Sweet! Where in TX are you? Maybe we'll run across each other at the track next time. Have fun!
I have a 986 Boxster as my daily right now and I really need to get it out to just one track day for fun soon.

[popcornten]

Originally Posted by Kelse92

Sweet! Where in TX are you? Maybe we'll run across each other at the track next time. Have fun!
I have a 986 Boxster as my daily right now and I really need to get it out to just one track day for fun soon.

Houston - watching all the posts from COTA w/ PCA and MSR Houston with Chin gave me major FOMO this weekend. It's been 1.5-2 years since I've done an event and who knows how long it'll take after the M2C to come in to complete break-in and decide I really want to track it.

[M2joey]

As others have mentioned, no for RE-71R, I know.

Looks like the US will receive the "new" Bridgestone Potenza Sport mid-summer or so. Appears to be on par and better, in a few ways, than the 4S. Should be a nice tire!

Only a couple reviews around at this point - https://www.tyrereviews.com/Article/...-Tyre-Test.htm