08-28-2022, 03:27 PM | #1 |
Enlisted Member
53
Rep 41
Posts
Drives: 2016 BMW X5M
Join Date: Feb 2013
Location: Vancouver, BC
|
Track/weekend + wet tires for 19x9.5"/10.5" wheels
Sorry if this is a repost but I searched and didn't find anything all that recent on this topic that wasn't specifically for "just dry". Tire tech seems to be changing frequently so looking for recent experiences.
Background: I live in the pacific northwest and it rains 10 months of the year. I need to be able to get to the track safely (the best track is 300 miles away) and there's a good chance that it will rain on the track day. I don't have the facilities to be swapping wheels/tires all the time. I did 3 track days this year + 2 autox. Planning to do ~10 track days next year. I'm currently on the OEM rims and rubber but have purchased forged rims (below) and need tires. Setup:
From my research here I've read that I should keep the OEM 20mm difference between front and back. Beyond that, I'm reading a lot of conflicting opinions on what would be best for a largely track but also wet weekender combo. Thank you in advance! |
08-28-2022, 05:02 PM | #2 |
Major General
10665
Rep 6,939
Posts
Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA
|
I would go with Michelin PS4Ss in 255/35/19 and 275/35/19.
__________________
BMWCCA member Puget Sound Chapter
|
Appreciate
0
|
08-28-2022, 06:41 PM | #4 |
Major General
10665
Rep 6,939
Posts
Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA
|
|
Appreciate
0
|
08-28-2022, 07:07 PM | #5 |
Brigadier General
2814
Rep 3,696
Posts |
255/35/19 & 275 or 285/35/19 RE-71RS. Prob won’t find a better arrive & drive track/wet tire setup.
Also, I keep sending people to the chart at the bottom of this article: https://grassrootsmotorsports.com/ar...-buyers-guide/ We all have different track day tire wants/needs, and this is a good way to start narrowing the possibilities. Last edited by ZM2; 08-28-2022 at 07:19 PM.. |
Appreciate
0
|
08-28-2022, 08:36 PM | #6 | |
Enlisted Member
53
Rep 41
Posts
Drives: 2016 BMW X5M
Join Date: Feb 2013
Location: Vancouver, BC
|
Quote:
|
|
Appreciate
1
ZM22813.50 |
08-28-2022, 09:29 PM | #7 | |
Major General
10665
Rep 6,939
Posts
Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA
|
Quote:
You definitely don’t want Michelin CUP2 tires because the suck in the rain. |
|
Appreciate
0
|
08-28-2022, 10:21 PM | #8 | |
Brigadier General
2814
Rep 3,696
Posts |
Quote:
If you Pacific NW guys see 5/10 days wet, I’d go 4S. Otherwise, grab some more dry grip with something like the 71RS which is still a great wet tire. |
|
Appreciate
0
|
08-29-2022, 12:24 PM | #10 |
Brigadier General
2814
Rep 3,696
Posts |
I’ll add that it also depends on the type of rain you mostly get. The old RE-71R was a decent bit quicker than the 4S in light-med rain. And, the 71RS is even quicker than the 71R in the wet.
If you start to get rivers or large puddles, that’s when you want the 4S. It doesn’t make any sense to keep PSS/4S on both sets of wheels. Run the PSS/4S on the street and track weekends that look like heavy rain. Run the 71RS for dry & light/med rain track weekends. That’s the whole point in having two sets of wheels/tires! Last edited by ZM2; 08-29-2022 at 12:29 PM.. |
Appreciate
0
|
08-29-2022, 01:58 PM | #11 | |
BimmerPost Supporting Vendor
3530
Rep 6,752
Posts |
Quote:
If on the other hand, you plan to sell the OE wheels and run only the VS-5RS, then I think the PS4S makes sense as a do-it-all option and we list various sizes that can work on the fitment guide as well: https://support.apexraceparts.com/hc...-Fitment-Guide -Tom
__________________
925-245-0773 /// info@apexraceparts.com
Wheels /// Accessories /// Vehicle-Specific Fitment Guides /// Careers |
|
Appreciate
0
|
08-30-2022, 02:41 AM | #12 | |
Major
1364
Rep 1,335
Posts |
Quote:
|
|
Appreciate
0
|
08-30-2022, 10:43 AM | #13 | |
Brigadier General
2814
Rep 3,696
Posts |
Quote:
A 255 & 275/285 71RS setup will be quicker in the dry and light-med rain than a 265 & 295 4S setup. |
|
Appreciate
0
|
08-30-2022, 03:55 PM | #14 |
Major
1364
Rep 1,335
Posts |
I agree, but that size can be mounted on oem wheels.
|
Appreciate
0
|
09-03-2022, 03:53 PM | #16 |
Enlisted Member
53
Rep 41
Posts
Drives: 2016 BMW X5M
Join Date: Feb 2013
Location: Vancouver, BC
|
I had challenges getting sizes and 71RS was hard to get here.
I went with, Michelin Pilot Sport 4 S 100(Y) BSW XL 255/35-19 275/35-19 I figure I can always swap the PS4S onto my oem wheels next spring and then will likely try out the 71RS on these track wheels. I have -3 camber up front so may well go with the wider setups recommended here. Thanks! Last edited by alkatraz; 09-03-2022 at 04:36 PM.. |
Appreciate
0
|
Post Reply |
Bookmarks |
Tags |
apex wheels, m2c, m2c tires, tires |
|
|