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      09-07-2020, 03:59 PM   #221
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Just finished a track day with Toyo R888Rs - 265/30/19 up front and 295/30/19 in the back with all 4 corners on Titan7 staggered 19" wheels. Running M Performance suspension with the ride height left at stock. There wasn't any rubbing at all. This is with -3.4 camber up front and -2.4 in back.

Overall was very happy with the setup. Everything in the car felt more stable and manageable.
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      09-08-2020, 04:16 PM   #222
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Quote:
Originally Posted by iBrakeLate View Post
Has anyone ran the 265-35/18 and 295-35/18 setup with the Ohlins R&T?

Any one want to chime in on the offsets they are running?

Also surprised to see no one running the Brembo GTS brake setup, most discussions have always been about the Essex/AP brakes.
Currently running 265/35/18 Yok A052's up front with R&T's. 18X10 +33 and a 15mm spacer. Had to increase preload nearly 10 mm beyond the suggested setting. Currently running 275/40/18 in the rear. It's a tall tire, no issues. 18X11 +44, no spacer.
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      09-08-2020, 08:18 PM   #223
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Quote:
Originally Posted by boony1968 View Post
Currently running 265/35/18 Yok A052's up front with R&T's. 18X10 +33 and a 15mm spacer. Had to increase preload nearly 10 mm beyond the suggested setting. Currently running 275/40/18 in the rear. It's a tall tire, no issues. 18X11 +44, no spacer.
Is the extra preload so the collar clears the tire, or something else? Assuming so for a minute.

I知 running a 7.5mm spacer on the front with a 265/35r18 RS4 on an 18x9.5 et28 wheel. Spacer would be totally unnecessary with the spring/collar out of the way. Any adverse affects to ride or handling with the extra preload, assuming you had some time at the recommended preload with s different wheel/tire set?

Has anyone looked into whether a shorter spring could be used to increase tire clearance without risk of coil bind at full compression, but also possible to preload the spring?

While I知 very happy with the coilovers overall, this is the one shortcoming of the Ohlins R&T that I壇 really like to do something about.
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      09-09-2020, 09:12 AM   #224
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The extra preload is needed for the seat to clear the tire's shoulder. The springs are linear, so no handling issues. I'm planning on getting custom perches made that will allow the benefit of shorter springs - 8 to 10 mm of additional tire.
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      09-09-2020, 09:48 AM   #225
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Quote:
Originally Posted by boony1968 View Post
The extra preload is needed for the seat to clear the tire's shoulder. The springs are linear, so no handling issues. I'm planning on getting custom perches made that will allow the benefit of shorter springs - 8 to 10 mm of additional tire.
I値l be very interested to hear about these perches. Please share what you can when they池e complete.
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      09-09-2020, 10:19 AM   #226
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Quote:
Originally Posted by iBrakeLate View Post
Has anyone ran the 265-35/18 and 295-35/18 setup with the Ohlins R&T?

Any one want to chime in on the offsets they are running?

Also surprised to see no one running the Brembo GTS brake setup, most discussions have always been about the Essex/AP brakes.
I'm running Apex EC7 18x10's with 33 Offset & 12 MM front spacers with 265/35 & 295/35's Yoko A052's. Also have full Essex /AP kit.

Have the car setup with TC Kline D/A Koni's. My 295's in the rear will make contact at full compression. I will be adding some shims to the rear to increase Neg Camber so they clear. other than that the setup is outstanding. I'll probably go to the 295/30's next time around.
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Last edited by SEAT TIME RULES; 09-09-2020 at 12:11 PM..
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      09-09-2020, 11:23 AM   #227
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It's crazy the stuff we have to go thru to get a good tire & suspension combo on this car!

There are no good rubber choices for the M2C to put the power down unless you change the brakes so you can put 18s on the car (R888Rs are slow, 71Rs grease out, R7s are expensive and don’t last, Trofeos are better suited for the street, no Pirelli or Michelin slicks), and finding a coilover setup with enough clearance to run wide wheels & tires is a +/- mm experiment each time.

I haven't made the jump to coilovers yet since I daily my car and our roads here are horrible and the Dinan HAS is about the softest setup out there, but it's allowing me to run 265/275 18x10 ET25 in the front and 295/305 18x10.5 ET40 EC-7R's in the back, no spacers.

At some point being able to get max rubber under the car in the best tires/compounds available def outweighs the extra power available from the M2C, or having to deal with the fuss of running crazy spacer & suspension settings to make certain coilovers work.

SEAT TIME RULES is def on the right track, it's just cost an arm & a leg to get there bc of all the constraints with this car!

Last edited by ZM2; 09-09-2020 at 11:42 AM..
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      09-09-2020, 12:14 PM   #228
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Quote:
Originally Posted by ZM2 View Post
It's crazy the stuff we have to go thru to get a good tire & suspension combo on this car!

There are no good rubber choices for the M2C to put the power down unless you change the brakes so you can put 18s on the car (R888Rs are slow, 71Rs grease out, R7s are expensive and don稚 last, Trofeos are better suited for the street, no Pirelli or Michelin slicks), and finding a coilover setup with enough clearance to run wide wheels & tires is a +/- mm experiment each time.

I haven't made the jump to coilovers yet since I daily my car and our roads here are horrible and the Dinan HAS is about the softest setup out there, but it's allowing me to run 265/275 18x10 ET25 in the front and 295/305 18x10.5 ET40 EC-7R's in the back, no spacers.

At some point being able to get max rubber under the car in the best tires/compounds available def outweighs the extra power available from the M2C, or having to deal with the fuss of running crazy spacer & suspension settings to make certain coilovers work.

SEAT TIME RULES is def on the right track, it's just cost an arm & a leg to get there bc of all the constraints with this car!
LOL! I waited for the S55 motor but knew I had to add the Essex Kit to get the 18's we need to run more extensive tire options. When ths car starts to morph more into a track 1st street 2nd car I'll Modify the wheel wells to get 295's up front :-)
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      09-24-2020, 10:59 PM   #229
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Quote:
Originally Posted by bentom2 View Post
Is the extra preload so the collar clears the tire, or something else? Assuming so for a minute.

I知 running a 7.5mm spacer on the front with a 265/35r18 RS4 on an 18x9.5 et28 wheel. Spacer would be totally unnecessary with the spring/collar out of the way. Any adverse affects to ride or handling with the extra preload, assuming you had some time at the recommended preload with s different wheel/tire set?

Has anyone looked into whether a shorter spring could be used to increase tire clearance without risk of coil bind at full compression, but also possible to preload the spring?

While I知 very happy with the coilovers overall, this is the one shortcoming of the Ohlins R&T that I壇 really like to do something about.
I had Mperformance coilovers first then converted to MCS. While the MCS have more clearance the collar still limits me to 265/35/18 fronts using a 12.5 mm spacer with my TA16 18x9.5 ET35. I have 6 inch springs, so I just ordered 5 inch to move the collar up to allow 275s in front....better tire options.
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      09-25-2020, 12:42 PM   #230
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Quote:
Originally Posted by Twt View Post
I had Mperformance coilovers first then converted to MCS. While the MCS have more clearance the collar still limits me to 265/35/18 fronts using a 12.5 mm spacer with my TA16 18x9.5 ET35. I have 6 inch springs, so I just ordered 5 inch to move the collar up to allow 275s in front....better tire options.
Thanks. Please let us know how this works out from a ride/handling perspective. The extra clearance would be nice.
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      09-28-2020, 07:25 AM   #231
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I wanted to chime in on my setup. 2020 M2C

Ohlins R&T (running recommended preload), Front camber plates, -3 camber front, -2.1 camber rear, Brembo GTS 380mm brake kit.

Yokohama A052 265/35/18 front, 295/35/18 rear.

18x9.5 ET22 fronts
18x10.5 ET40 rears

Not running spacers at all, no rubbing.
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      09-28-2020, 08:52 AM   #232
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Quote:
Originally Posted by iBrakeLate View Post
I wanted to chime in on my setup. 2020 M2C

Ohlins R&T (running recommended preload), Front camber plates, -3 camber front, -2.1 camber rear, Brembo GTS 380mm brake kit.

Yokohama A052 265/35/18 front, 295/35/18 rear.

18x9.5 ET22 fronts
18x10.5 ET40 rears

Not running spacers at all, no rubbing.
What ET do you think you壇 need to run an 18x10 front and a 275 with your setup? ET15-17?

Anyone know the spring width difference between M Performance and Ohlins?
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      09-28-2020, 09:44 AM   #233
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Quote:
Originally Posted by ZM2 View Post
What ET do you think you壇 need to run an 18x10 front and a 275 with your setup? ET15-17?

Anyone know the spring width difference between M Performance and Ohlins?
I did the will it fit calculator online.

You need at least ET16 with the 18x10 and the 275 to keep the inner clearance the same. There inner clearance with the Ohlins R&T in the front is pretty much at the least you want it to be with these specs.
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      09-28-2020, 09:53 AM   #234
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Quote:
Originally Posted by iBrakeLate View Post
I did the will it fit calculator online.

You need at least ET16 with the 18x10 and the 275 to keep the inner clearance the same. There inner clearance with the Ohlins R&T in the front is pretty much at the least you want it to be with these specs.
Yeah, did that math in my head. Guess I should have been more specific with my question: how much clearance do you have right now?
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      09-28-2020, 10:51 AM   #235
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Quote:
Originally Posted by ZM2 View Post
Yeah, did that math in my head. Guess I should have been more specific with my question: how much clearance do you have right now?
I haven't measured it, since it is hard to measure, if I had to guess, I'd say maybe half an inch? I was concerned with sidewall flex and the tire rubbing if it flexed, but it looks like the sidewall mainly flexes at the contact patch.
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      09-28-2020, 11:02 AM   #236
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Quote:
Originally Posted by iBrakeLate View Post
I haven't measured it, since it is hard to measure, if I had to guess, I'd say maybe half an inch? I was concerned with sidewall flex and the tire rubbing if it flexed, but it looks like the sidewall mainly flexes at the contact patch.
A half inch is quite a bit! Sounds like a good setup.

My rough math tells me ET20 would work for 18x10 & 275s with Ohlin or M Performance, but test fitting would be the only way to know for sure.
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      10-06-2020, 07:18 AM   #237
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Quote:
Originally Posted by bentom2 View Post
Thanks. Please let us know how this works out from a ride/handling perspective. The extra clearance would be nice.
Put on the shorter springs and added a lot of clearance....can run 275/35/18 on front with 5mm spacer....will track it in a few weeks to see how this changes the handling
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      10-06-2020, 09:27 PM   #238
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Quote:
Originally Posted by Twt View Post
Put on the shorter springs and added a lot of clearance....can run 275/35/18 on front with 5mm spacer....will track it in a few weeks to see how this changes the handling
I知 running a 7mm spacer and clear 265/35r18 RS4. I知 sure a 275 would clear with it as well. I壇 just prefer not to run spacers on track. Yes, I知 being paranoid.
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      10-07-2020, 04:59 AM   #239
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Quote:
Originally Posted by adc View Post
Has anyone tried what us M3 owners run? Nitto NT01 275 fronts on an 18”x10” or 10.5” rim ET25, 305 rears on 18”x11” or 10.5” et44.

ZM2 you’re welcome to stop by my house and try it on.


I have an ulterior motive, I’m on the list for an M2 Competition...
Has anyone tried this specific M3 fitment on their M2 yet ?
18 x 10 et 25
18 x 11 et 44

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      10-21-2020, 01:30 AM   #240
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Quote:
Originally Posted by dmf View Post
Just finished a track day with Toyo R888Rs - 265/30/19 up front and 295/30/19 in the back with all 4 corners on Titan7 staggered 19" wheels. Running M Performance suspension with the ride height left at stock. There wasn't any rubbing at all. This is with -3.4 camber up front and -2.4 in back.

Overall was very happy with the setup. Everything in the car felt more stable and manageable.
Which camber plates did you install? are you planning on lowering your ride height - wondering if it would run given the wife front springs?
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      10-21-2020, 10:33 AM   #241
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Has anyone successfully fit a 305/35r18 NT01 on the rear, ideally on a 18x10.5 et40 wheel? I’m interested in trying them and 275/305 is the closest to ideal sizing for my 9.5/10.5 track wheels that they offer.

The Apex fitment guide makes 305 sound like a tight squeeze, but I see other 305’s being successfully fitted in this thread and elsewhere.

FWIW, my M2 is lowered around 10mm in front and roughly 15mm (I’m guessing as it seems to have settled a bit in the rear since install- open to changing ride height) in the rear on Ohlins R&T. I’m also already running a fair bit of camber at 3.2f/2.4r.

Backup would be to try 265/40f and 275/40 rear, which might not be horrible from a handling perspective as I’m torn on square vs staggered. Will probably just require some massaging of the front liners.
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      10-21-2020, 11:19 AM   #242
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Quote:
Originally Posted by dmf View Post
Just finished a track day with Toyo R888Rs - 265/30/19 up front and 295/30/19 in the back with all 4 corners on Titan7 staggered 19" wheels. Running M Performance suspension with the ride height left at stock. There wasn't any rubbing at all. This is with -3.4 camber up front and -2.4 in back.

Overall was very happy with the setup. Everything in the car felt more stable and manageable.
Pictures of this set-up?
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