[Rumbloki]

Originally Posted by AlpinewhiteM2C

He is lowered a bit and has the camber adjustment knuckles as oppose to stock,

Does this move him out of B-Street?

[Dean_Clevername]

Originally Posted by sholzer

Yep that's me! Did my buddy Eric buy it from you?

I just sold the GT4 and ended up picking up a CS. I wrote a letter to see if there is any plan to put the CS in a street class, but I doubt it will. I'm not even sure that it even qualifies (not sure if required production numbers are worldwide or US). Worst case I'll play with it locally or keep the NC miata I'm trying to sell and just play with that.

Yep, the 996 is Eric's now! It'll be nice to see that car out and about in the future vs shipped off to the other side of the country or something. I still love that thing.

Congrats on the CS! Hope you get classed. The 1M is rare and it got classed, M4 GTS is even more rare and so did that. Excluding the CS would seem out of step with past SCCA precedent? Fingers crossed for you.

Originally Posted by AlpinewhiteM2C

I picked up 2-2.5 seconds on a 55-60 second course after switching to 265/285 RE71Rs from 245/265 stock Michelin PSSs. I haven't tried RE71Rs yet in 40ish degree weather and wet yet. Will get an opportunity as test and tune days starts up here in the PNW on Feb 27.

If the RS is anything like the predecessor, you should be able to put enough heat in them to work surprisingly well at those temps. I hope this is an area Bridgestone doesn't sacrifice for gains elsewhere. I've had RE71R out in low 30 degree weather trackcross and early season autox and after the first run they actually start to get some temp in them and work. Not nearly as much grip as normal obviously, but way better than something like Conti ECS or PSS which I struggled to fire up at all in the same circumstances

[sholzer]

Originally Posted by Dean_Clevername

Congrats on the CS! Hope you get classed. The 1M is rare and it got classed, M4 GTS is even more rare and so did that. Excluding the CS would seem out of step with past SCCA precedent? Fingers crossed for you.

That's true, maybe it'll get put in AS with the other CS's. Won't be the worst thing considering AS and BS run almost the same times anyway. I also might just end up running STR if no one buys my NC lol

[AlpinewhiteM2C]

Originally Posted by Rumbloki

Does this move him out of B-Street?

Yes, no longer B Street eligible which is fine with him. He's focused his M2C build towards SCCA time trials that allows for the mods he added.

[AlpinewhiteM2C]

Originally Posted by Dean_Clevername

Will see on the RT660 fronts shortly. Ordered up a set of 275 square from Strano, but 30 front and 35 rear per his advice. Those sizes allow for some stagger while maintaining a good f/r height ratio. Sticking with 19' wheels for now. Hope to have them on in time for the Refrigerator Bowl this month which should expose any fitment problems.

Very curious about the Falkens, but I think I'll be a poor position to judge them vs the RE71R as this car is new to me. Absolutely loved the RE71R for the last 4-5 years on my prior car. Too much different about the M2 to make an apples to apples comparison.

One of the faster OGM2 drivers in our area came out yesterday with the Falken 660 275/30/19 front and 275/35/19 rear set up. He had no fitment issues and advise me to ditch the RE71s ASAP as he said the Falkens worked better the the RE71 set up he ran last year.

[Dean_Clevername]

Originally Posted by AlpinewhiteM2C

One of the faster OGM2 drivers in our area came out yesterday with the Falken 660 275/30/19 front and 275/35/19 rear set up. He had no fitment issues and advise me to ditch the RE71s ASAP as he said the Falkens worked better the the RE71 set up he ran last year.

Nice! Good to hear. Jealous on two counts. 1) you guys are already autocrossing this season and 2) He has those tires on the car. Rears were backordered for me, still waiting for shipment.

[CSBM5]

Originally Posted by AlpinewhiteM2C

One of the faster OGM2 drivers in our area came out yesterday with the Falken 660 275/30/19 front and 275/35/19 rear set up. He had no fitment issues and advise me to ditch the RE71s ASAP as he said the Falkens worked better the the RE71 set up he ran last year.

That's a significant change in front-rear diameter stagger too (from stock or from 255/35-19 / 275/25-19). I suppose there are no issues with early (unwanted) ABS activation or anything...

[AlpinewhiteM2C]

Originally Posted by CSBM5

That's a significant change in front-rear diameter stagger too (from stock or from 255/35-19 / 275/25-19). I suppose there are no issues with early (unwanted) ABS activation or anything...

He or his co-driver didn't have any issues. He was about 1 second clear of a new 718 GT4 on Michelin P4S driven by the 2018 BSP National champion so the set up was working well for him.

[Gusman1]

Question for you guys, would camber plates, coilovers, 18" 9.5 & 10.5 wheels with 200tw tires in my OG '18 put me in ASP?

I do it for fun and not chasing any titles. Just trying to figure out what class I'll be in for this season. Thoughts?

[sholzer]

Originally Posted by Gusman1

Question for you guys, would camber plates, coilovers, 18" 9.5 & 10.5 wheels with 200tw tires in my OG '18 put me in ASP?

I do it for fun and not chasing any titles. Just trying to figure out what class I'll be in for this season. Thoughts?

You should fit into STU under the catch-all rule which would be a friendlier place to run (less out gunned if you're not on A7s)

[Gusman1]

Originally Posted by sholzer

You should fit into STU under the catch-all rule which would be a friendlier place to run (less out gunned if you're not on A7s)

Thanks for that, I'll have to read up on this rule.

[JustAWhisper]

Originally Posted by Gusman1

Thanks for that, I'll have to read up on this rule.

Just a minor clarification. The NOC designation will only get you into STU in non-national events if your local club allows it. Most local clubs are pretty cool with this sort of thing, especially if you only have partial prep for the class. But if you show up to a ProSolo or something like that just for fun, you'll be in ASP.

There is currently a STU rule overhaul in discussion that would formally class the OG M2 in STU starting in 2022. I expect it will be formally adopted.

[JustAWhisper]

Revisiting the tire discussion, I finally got a set of 18in wheels in and I'm trying to make the decision on what tire size to run.

I was hoping to run A052's but the tire size options for the rear are still not good. I saw some talk earlier of someone trying to squish that 295/30R18, but since Yokos already run wide I'm curious to know how successful that was. It's also way shorter radius than the stock setup, though the pinch might mitigate that somewhat. RT660's have some more options. Supercar3's have less options and are probably not as fast as the other two. RE-71R's are yseterday's news as far as I can tell.

Here's what I'm currently thinking.

Option 1 (A052):
F 265/35R18 (-1.9% radius, +0.8" width)
R 275/40R18 (+1.5% radius, +0.4" width) Does this fit??? I can drop down to 265/40R18 if it doesn't. I'm leery of the 295.

Option 2 (RT660):
F 265/35R18 (same as above)
R 275/35R18 (-2.7% radius, +0.4" width)
There's also a 285/30R18, but that is a much smaller radius as well.

I'm trying not to dork with the car's rake too much, but maybe I'm over-worried about it.

[Gusman1]

Originally Posted by JustAWhisper

Just a minor clarification. The NOC designation will only get you into STU in non-national events if your local club allows it. Most local clubs are pretty cool with this sort of thing, especially if you only have partial prep for the class. But if you show up to a ProSolo or something like that just for fun, you'll be in ASP.

There is currently a STU rule overhaul in discussion that would formally class the OG M2 in STU starting in 2022. I expect it will be formally adopted.

Thanks for the clarification. Definitely will try it, if they don't allow it I'll just run as "fun".

Originally Posted by JustAWhisper

Revisiting the tire discussion, I finally got a set of 18in wheels in and I'm trying to make the decision on what tire size to run.

I was hoping to run A052's but the tire size options for the rear are still not good. I saw some talk earlier of someone trying to squish that 295/30R18, but since Yokos already run wide I'm curious to know how successful that was. It's also way shorter radius than the stock setup, though the pinch might mitigate that somewhat. RT660's have some more options. Supercar3's have less options and are probably not as fast as the other two. RE-71R's are yseterday's news as far as I can tell.

Here's what I'm currently thinking.

Option 1 (A052):
F 265/35R18 (-1.9% radius, +0.8" width)
R 275/40R18 (+1.5% radius, +0.4" width) Does this fit??? I can drop down to 265/40R18 if it doesn't. I'm leery of the 295.

Option 2 (RT660):
F 265/35R18 (same as above)
R 275/35R18 (-2.7% radius, +0.4" width)
There's also a 285/30R18, but that is a much smaller radius as well.

I'm trying not to dork with the car's rake too much, but maybe I'm over-worried about it.

I'm running 265/35/18 & 295/30/18 A052s and yes they do fit. Driven it hard in the canyons and zero rubbing. I will see what happens soon when I do my first auto-x event with this new setup.
I know at least one member that was running 295/35/18 A052 but was getting getting some slight rubbing under full compression, so decided to go with the shorter option.

[JustAWhisper]

Thanks for your reply Gusman.

Funnily enough, I hadn't noticed the 295/35R18 size when I first looked. I'm surprised that rubs because it's still shorter than the stock size and in theory should be about perfect, but I looked at the wheel well on my car and realized that the fender doesn't have much space behind it, so that might be why. I'm still tempted to try it because I don't want to lose 2-3 MPH in gearing by running a short rear tire (I'm DCT).

[Gusman1]

Definitely post up some pics if you do go with a 295/35 give us some feedback.

[CSBM5]

Originally Posted by Dean_Clevername

Will see on the RT660 fronts shortly. Ordered up a set of 275 square from Strano, but 30 front and 35 rear per his advice. Those sizes allow for some stagger while maintaining a good f/r height ratio. Sticking with 19' wheels for now. Hope to have them on in time for the Refrigerator Bowl this month which should expose any fitment problems.

Very curious about the Falkens, but I think I'll be a poor position to judge them vs the RE71R as this car is new to me. Absolutely loved the RE71R for the last 4-5 years on my prior car. Too much different about the M2 to make an apples to apples comparison.

Any update on the RT660? I'm also wondering about using the 305/30-19 rears on the M2C with the 275/30-19 up front. Perhaps in cars with a big front bar the 275s all around helps balance things out (or are you running an OG M2?). So far, totally stock suspension here and have been using 255/35-19 / 275/35-19 RE71Rs, and it sure feels like it could handle 30mm width stagger (i.e. 275/30 and 305/30) since it is so well balanced with 20mm.

[Wisco M3]

I ran mine in street last year with 275 square on 18's and a dinan front bar on full soft. The car was fun but super pushy. I was unable to dial it out, but never tried going back to the stock bar. Instead I'm going fully the opposite way and doing an STU build. I'm tired of killing front tires.

[Dean_Clevername]

Originally Posted by CSBM5

Any update on the RT660? I'm also wondering about using the 305/30-19 rears on the M2C with the 275/30-19 up front. Perhaps in cars with a big front bar the 275s all around helps balance things out (or are you running an OG M2?). So far, totally stock suspension here and have been using 255/35-19 / 275/35-19 RE71Rs, and it sure feels like it could handle 30mm width stagger (i.e. 275/30 and 305/30) since it is so well balanced with 20mm.

Unfortunately no. Autocross season hasn't really started here (DC) and I had to miss the final round of the refrigerator bowl because some 11th hour life stuff got in the way. But I'm registered for PCA and SCCA's first events here on the 21st and 28th. I'm an OG lci m2 btw. All stock. Have a Hotchkis front bar in the shed that I'll throw on after I have a few baseline events with the car.

What's everyone running for alignments on OG/LCI m2? Most alignment talk I find on the forum is centered around cars with camber plates, lowered etc.

From searching I THINK the stock alignment specs are:

Front Camber: -1.5
Front Toe: .05 deg (.1 total)
Rear Camber: -1.29
Rear Toe: .08 deg (.16 total)

From what I think I understand as of now, caster is not adj and there's not much if any additional neg camber available. So really this is a game of toe?

[tux2005]

You can only adjust toe on the front and toe & camber on the rear. For the front you can get different hubs which increase camber by -0.5 I think, otherwise it's camber plates.

[Dean_Clevername]

Originally Posted by tux2005

You can only adjust toe on the front and toe & camber on the rear. For the front you can get different hubs which increase camber by -0.5 I think, otherwise it's camber plates.

Yep. I'm confined to B-Street rules so no mods. Not on a quest for ultimate camber, but in the past I've found toe alone can yield big changes to how a car drives. Was curious if any m2 b-street autocrossers have found value in straying from stock alignments with their setups and driving style.

[Rumbloki]

Originally Posted by Dean_Clevername

but in the past I've found toe alone can yield big changes to how a car drives.

so true