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      09-13-2019, 03:31 PM   #155
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Quote:
Originally Posted by K-Fab View Post
LOVE the McMaster-Carr book for reference.
The shop Bible.

So am I allowed to assume that the back ordered shipment of wheels is now being fulfilled? Please say yes.
Ha!

I work @ the yellow book place. This is the first time I see it being used on wheels.
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      09-13-2019, 03:37 PM   #156
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Originally Posted by arciga18 View Post
Ha!

I work @ the yellow book place. This is the first time I see it being used on wheels.
I love you guys



Quote:
Originally Posted by Phantom_9192 View Post
Here's some track video on the PSS and stock wheels (with pressures as delivered and driven to the track). I was taking it a bit easier on this shorter layout so the understeer, while there, isn't as visible. I ran the longer track (still short) this weekend and pushed harder and the understeer was egregious. I'm pretty sure under the current rules (essentially SCCA autocross classing rules) the M2C isn't going to be competitive in time trials with a well-driven C6 Z06 but it's still fun. Better pads and higher temp fluid will help as well, but nothing (legal for class) is going to close that 100HP gap.

That's how I like my vettes
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      09-16-2019, 09:01 PM   #157
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post alignment pic. additional detailed pictures of minor negative camber fronts and rears in my build thread linked in my signature.

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      09-17-2019, 08:02 AM   #158
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Originally Posted by 2PUTT View Post
post alignment pic. additional detailed pictures of minor negative camber fronts and rears in my build thread linked in my signature.

Niiiiice! Cannot wait to get forged 19’s!
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      09-17-2019, 01:46 PM   #159
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Quote:
Originally Posted by Expert@ApexRaceParts View Post
Thank you for your post, do you have any pictures to share? I just wanted a bit more information here if possible. What is the tire size up front that you are currently running on the car?

This 19x9.5 ET28 and 19x10.5 ET45 fitment is offered as a recommended fitment for the M2C. With the proper tire sizes, this is a great fit on cars fitted with the OEM suspension and many aftermarket suspensions that do not limit inner clearance more than OEM.

We do know that the M performance adjustable collars (manufactured by KW) are a bit bulkier than the OEM suspension up front and can cause clearance issues. For KW and the very similar M Performance suspension systems, we do recommend a small 5mm spacer up front to aid in clearance. As these systems do limit inner clearance on the F87 application.

We generally do not recommend a 12mm spacer on the 19x9.5" ET28 wheel up front as this is very aggressive and can cause issues with fender clearance. I believe that your current camber setting are aiding in clearance here, which makes the 12mm spacer up front possible. Did you have a chance to try the 5mm spacer up front for clearance?

We do know that the 19x10.5 ET45 with the 285/30-19 in the rear is a direct fit, per our fitment testing. So I am glad to hear that your fitment test confirms this, especially the bit about the 5mm test for fun!

- Max
Further update.

First tracktime with the 265/30 and 295/30 r888r. 12mm spacer in front.

There was no rubbing on the spring collars of the mperformance suspension.

There was rubbing on the outer fender liner and on the metal fender lip under full compression (downhill hump while braking and slight turn). Only one 1 corner did this occur. On flat corners, no rubbing.

So even with -3 degrees camber, the 12mm spacer is a bit too much.

Im not confident that a 5mm spacer will be sufficient to clear the spring collar with tire deflection during cornering. I'm tempted to try a 7.5mm or 8mm spacer.
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      09-17-2019, 06:09 PM   #160
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Quote:
Originally Posted by mcgarnigle View Post
Quote:
Originally Posted by Expert@ApexRaceParts View Post
Thank you for your post, do you have any pictures to share? I just wanted a bit more information here if possible. What is the tire size up front that you are currently running on the car?

This 19x9.5 ET28 and 19x10.5 ET45 fitment is offered as a recommended fitment for the M2C. With the proper tire sizes, this is a great fit on cars fitted with the OEM suspension and many aftermarket suspensions that do not limit inner clearance more than OEM.

We do know that the M performance adjustable collars (manufactured by KW) are a bit bulkier than the OEM suspension up front and can cause clearance issues. For KW and the very similar M Performance suspension systems, we do recommend a small 5mm spacer up front to aid in clearance. As these systems do limit inner clearance on the F87 application.

We generally do not recommend a 12mm spacer on the 19x9.5" ET28 wheel up front as this is very aggressive and can cause issues with fender clearance. I believe that your current camber setting are aiding in clearance here, which makes the 12mm spacer up front possible. Did you have a chance to try the 5mm spacer up front for clearance?

We do know that the 19x10.5 ET45 with the 285/30-19 in the rear is a direct fit, per our fitment testing. So I am glad to hear that your fitment test confirms this, especially the bit about the 5mm test for fun!

- Max
Further update.

First tracktime with the 265/30 and 295/30 r888r. 12mm spacer in front.

There was no rubbing on the spring collars of the mperformance suspension.

There was rubbing on the outer fender liner and on the metal fender lip under full compression (downhill hump while braking and slight turn). Only one 1 corner did this occur. On flat corners, no rubbing.

So even with -3 degrees camber, the 12mm spacer is a bit too much.

Im not confident that a 5mm spacer will be sufficient to clear the spring collar with tire deflection during cornering. I'm tempted to try a 7.5mm or 8mm spacer.
Think running 5 will be enough with offset at 28, also running kw v3 coils. I'm surprised you were able to fit a 12mm with 265 even with dialing in camber.
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      09-18-2019, 09:36 AM   #161
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Quote:
Originally Posted by mcgarnigle View Post
Further update.

First tracktime with the 265/30 and 295/30 r888r. 12mm spacer in front.


There was rubbing on the outer fender liner and on the metal fender lip under full compression (downhill hump while braking and slight turn). Only one 1 corner did this occur. On flat corners, no rubbing.
hmm that has me a little worried with going 265/35 up front.. but I am stock ride height, with camber plates, no spacers.
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      09-18-2019, 10:12 AM   #162
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Quote:
Originally Posted by Proctor750 View Post
Quote:
Originally Posted by mcgarnigle View Post
Further update.

First tracktime with the 265/30 and 295/30 r888r. 12mm spacer in front.


There was rubbing on the outer fender liner and on the metal fender lip under full compression (downhill hump while braking and slight turn). Only one 1 corner did this occur. On flat corners, no rubbing.
hmm that has me a little worried with going 265/35 up front.. but I am stock ride height, with camber plates, no spacers.
265/35 will rub even on stock height at full compression, camber will help and it'll eventually wear down a bit. It's generally a tire height problem than it is width. If you don't track or autox though I wouldn't be concerned at all.
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      09-18-2019, 11:19 AM   #163
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Quote:
Originally Posted by wanofakind01 View Post
265/35 will rub even on stock height at full compression, camber will help and it'll eventually wear down a bit. It's generally a tire height problem than it is width. If you don't track or autox though I wouldn't be concerned at all.
Right I heard it would rub from ZM2 but if 30 series rub it sounds like it's going to be worse than I had originally imagined. Not a lot of choices

It will be tracked and hard.
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      09-18-2019, 11:24 AM   #164
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Quote:
Originally Posted by Proctor750 View Post
Right I heard it would rub from ZM2 but if 30 series rub it sounds like it's going to be worse than I had originally imagined. Not a lot of choices

It will be tracked and hard.
I don’t think you’ll have any problems with 265/30. I ran that size on 19x9.5 ET30 and -3.0 camber with no issues.
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      09-19-2019, 08:31 AM   #165
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Quote:
Originally Posted by ZM2 View Post
I don’t think you’ll have any problems with 265/30. I ran that size on 19x9.5 ET30 and -3.0 camber with no issues.
unfortunately the RE71's do not come in a 30 series until 305. So it would have to be 35 series if I want to run the 265 up front.

unless you meant 35 in which case that's good news
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      09-19-2019, 08:39 AM   #166
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Quote:
Originally Posted by Proctor750 View Post
unfortunately the RE71's do not come in a 30 series until 305. So it would have to be 35 series if I want to run the 265 up front.

unless you meant 35 in which case that's good news
The 265/35/19 doesn’t rub on my car. The rubbing issue with the 265/35 is tire height. Once you wear a bit of the liner, it goes away—unless you do a large ride height drop upfront.

For me this worked with a 4S, R7, and RE-71R 265/35/19, camber ranging from -1.8 to -3.1, ET30-33, and dropped 12mm in the front with Dinan HAS.

I’m pretty sure the rubbing issue that is being discussed with the 265/30 is an inboard/outboard issue bc of the large spacer that was used and not needed. I was able to fit some 265/30 without a spacer on 19x9.5 ET33, no rub.

Last edited by ZM2; 09-19-2019 at 08:49 AM..
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      09-19-2019, 10:33 AM   #167
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Quote:
Originally Posted by ZM2 View Post
The 265/35/19 doesn’t rub on my car. The rubbing issue with the 265/35 is tire height. Once you wear a bit of the liner, it goes away—unless you do a large ride height drop upfront.

For me this worked with a 4S, R7, and RE-71R 265/35/19, camber ranging from -1.8 to -3.1, ET30-33, and dropped 12mm in the front with Dinan HAS.

I’m pretty sure the rubbing issue that is being discussed with the 265/30 is an inboard/outboard issue bc of the large spacer that was used and not needed. I was able to fit some 265/30 without a spacer on 19x9.5 ET33, no rub.
I require a spacer to clear the spring collar on the m performance coilovers with a 265/30 r888r.

I don't have a 7.5 on hand to try. The 5 I do have doesn't appear to be enough to address clearance and sidewall deflection under hard cornering. So I used a 12.

I will buy a set of 7.5 and see how they work next track day.
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      09-19-2019, 11:59 AM   #168
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Quote:
Originally Posted by mcgarnigle View Post
I require a spacer to clear the spring collar on the m performance coilovers with a 265/30 r888r.

I don't have a 7.5 on hand to try. The 5 I do have doesn't appear to be enough to address clearance and sidewall deflection under hard cornering. So I used a 12.

I will buy a set of 7.5 and see how they work next track day.
I think it’s worth trying the 5mm. Seems crazy that >ET23 would be required to clear the MPS.

wanofakind01 is running V3’s with 255/35 RE-71R with no issues and the math says a 5mm spacer would be enough for a 265/30 to clear if the V3’s and MPS are the same size.

If it clears statically with a couple mm to spare, it should be good dynamically. Sidewall deflection isn’t a concern on the topside of the tire where it would rub the strut.
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      09-19-2019, 12:57 PM   #169
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by mcgarnigle View Post
I require a spacer to clear the spring collar on the m performance coilovers with a 265/30 r888r.

I don't have a 7.5 on hand to try. The 5 I do have doesn't appear to be enough to address clearance and sidewall deflection under hard cornering. So I used a 12.

I will buy a set of 7.5 and see how they work next track day.
I think it's worth trying the 5mm. Seems crazy that >ET23 would be required to clear the MPS.

wanofakind01 is running V3's with 255/35 RE-71R with no issues and the math says a 5mm spacer would be enough for a 265/30 to clear if the V3's and MPS are the same size.

If it clears statically with a couple mm to spare, it should be good dynamically. Sidewall deflection isn't a concern on the topside of the tire where it would rub the strut.
Yep, running 5mm spacer with the 255/35/19 RE71s on KWs, which puts me at around ET23. I can't imagine needing to go beyond that. The 255 RE71s are beefy tires, they likely closer to a 265 Michelin.
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      09-19-2019, 01:23 PM   #170
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Quote:
Originally Posted by wanofakind01 View Post
Yep, running 5mm spacer with the 255/35/19 RE71s on KWs, which puts me at around ET23. I can't imagine needing to go beyond that. The 255 RE71s are beefy tires, they likely closer to a 265 Michelin.
Didn’t realize you were running a spacer. Did you need it for the tires to clear, or just playing it safe?

The 265/30 is 5mm wider on each side than the 255/35, so he may very well need the 7.5mm spacer at a minimum if your 255/35s rubbed.
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      09-19-2019, 06:12 PM   #171
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Quote:
Originally Posted by ZM2 View Post
Quote:
Originally Posted by wanofakind01 View Post
Yep, running 5mm spacer with the 255/35/19 RE71s on KWs, which puts me at around ET23. I can't imagine needing to go beyond that. The 255 RE71s are beefy tires, they likely closer to a 265 Michelin.
Didn’t realize you were running a spacer. Did you need it for the tires to clear, or just playing it safe?

The 265/30 is 5mm wider on each side than the 255/35, so he may very well need the 7.5mm spacer at a minimum if your 255/35s rubbed.
I was playing it safe from one of the posts above that was running kw's. When I ran ET35 with 5mm spacers I was rubbing the spring perch on 265/35 toyos. I did 12mm back then that set me at ET23. But with these at ET28 I can't even see fitting a 12mm to begin with as I'd be right at the fender with ET16.
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      09-24-2019, 03:26 PM   #172
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Originally Posted by Proctor750 View Post
I love you guys





That's how I like my vettes
That looks like a seriously fun track.
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      10-03-2019, 03:59 PM   #173
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Ok, so I finally got my tires on the wheels and tried to mount. I saw someone say they were having the same problem I'm now having earlier in the thread. The front tires do not clear the suspension collar. I have the MPerformance coilovers.

I suppose a spacer of some size (maybe 5mm?) will work, but I'm not sure. Has anyone found a solution?

Also, where is the best place to get 5mm spacers and new studs on the quick?!
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      10-03-2019, 08:02 PM   #174
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Quote:
Originally Posted by GreyAggie View Post
Ok, so I finally got my tires on the wheels and tried to mount. I saw someone say they were having the same problem I'm now having earlier in the thread. The front tires do not clear the suspension collar. I have the MPerformance coilovers.

I suppose a spacer of some size (maybe 5mm?) will work, but I'm not sure. Has anyone found a solution?

Also, where is the best place to get 5mm spacers and new studs on the quick?!
Any hub centric spacer will work, 5mm did the job for me on kws. Would check out burgertuning
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      10-03-2019, 08:24 PM   #175
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Quote:
Originally Posted by wanofakind01 View Post
Quote:
Originally Posted by GreyAggie View Post
Ok, so I finally got my tires on the wheels and tried to mount. I saw someone say they were having the same problem I'm now having earlier in the thread. The front tires do not clear the suspension collar. I have the MPerformance coilovers.

I suppose a spacer of some size (maybe 5mm?) will work, but I'm not sure. Has anyone found a solution?

Also, where is the best place to get 5mm spacers and new studs on the quick?!
Any hub centric spacer will work, 5mm did the job for me on kws. Would check out burgertuning
I talked to Max at Apex and ordered a set of 5mm spacers and hardware. Really looking forward to the setup.
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      10-04-2019, 01:55 PM   #176
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Quote:
Originally Posted by GreyAggie View Post
Ok, so I finally got my tires on the wheels and tried to mount. I saw someone say they were having the same problem I'm now having earlier in the thread. The front tires do not clear the suspension collar. I have the MPerformance coilovers.

I suppose a spacer of some size (maybe 5mm?) will work, but I'm not sure. Has anyone found a solution?

Also, where is the best place to get 5mm spacers and new studs on the quick?!
Same thing on front with KW HAS kit, 5mm spacers helped, but 265/295 r888r is rubbing arches on high bumps...

Playing to go with ohlins suspension, will it help to eliminate the spacers or it will rub in front as well?
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