18*10 ET25 Track tire choices

lutfy · 09-19-2012, 02:54 PM

Guys,

I did do a search and was able to find some answers but the variables (suspension, spacers etc.) were different.

I have a set of 18*10 ET 25 wheels which I run just for the track. Its a stock E90 and I intend to add -3 camber up front soon (GC Plates).

Previously I ran 275/18s front and rear. The tires are gone and before I purchased another set of Toyo R888 or R1s, wanted to know my options please:

1) What is the maximum I can stuff on these wheels without rubbing or running spacers. Can I go 285s in the front or 275s is about the limit? What about the rears? Would 295s or 305s work?

2) If I ran spacers, what would my option be then without rubbing? Again car is not lowered and running stock brakes. Basically looking for an option to run the widest rubber on a stock setup.

Thank you in advance.

Lutfy

Car54 · 10-23-2012, 07:34 AM

If you go bigger than 275 on a 10" rim you'll start to lose steering feel. Read the tire specs as each tire is different. Might want to look into Nitto NT01's in 275/35.

BTW...how do you like the mix of PFC 01 and 08? I'm also running 01's in the rear and 08 in the front.

checkmate · 10-23-2012, 09:49 AM

I did a square set of PSS 275/25/18. Wih PSS, rain or shine...it owns the track. On the flip side, I think NT-01s or Dunlop Direzza manage heat better (based on hearsay not experience).

Expert@ApexWheels · 10-23-2012, 03:59 PM

The 18x10" ET25 supports the 275/35/18 tire sidewall very well, any larger and the tires will balloon a bit. We would recommend sticking to the 275/35/18 tire size for the best steering response and sidewall support.

Car54 · 10-23-2012, 05:14 PM

David,

Good call on the Anthracite with Jerez!

Expert@ApexWheels · 10-23-2012, 06:22 PM

Quote:

Originally Posted by Car54

David,

Good call on the Anthracite with Jerez!

Glad you like it, great combination!

rzm3 · 10-23-2012, 06:54 PM

I use a 18x10 et25 set up all around. With 3+ camber up front and 2+ in the rear.

Due to the amount of camber, I can easily use 10 mm spacers front and rear on 275/35/18 Continental scrubs. However, it is pretty tight in the rear (tire to fender) with spacers. There's plenty of room if you don't use spacers in the back.

Front space I cannot say since I have aftermarket struts.

One consideration is that there are not too many tires available in 285/35/18. 285/30/18 offers more but you would lose your side wall.

Another consideration is the balance. The M3 understeers from the factory, so depending on your set up you may prefer a square over a staggered.

chili cheese · 10-23-2012, 08:05 PM

Quote:

Originally Posted by David@ApexRaceParts

The 18x10" ET25 supports the 275/35/18 tire sidewall very well, any larger and the tires will balloon a bit. We would recommend sticking to the 275/35/18 tire size for the best steering response and sidewall support.

Running the ARC-8s as noted above with Nitto NT01s and happy so far. No spacers.

Protocav · 10-23-2012, 11:31 PM

I put a set of 275/35-18 Nitto NT-01's on a 9.5/10.5 wheel setup this evening. They are bulgy on the 9.5 and pretty square on the 10.5. They fit like 285's and would be perfect on 10's.

A 275 might sound small for a 10" wide wheel if it was a street tire, but the NT-01 runs really wide. You will have tons of room to the inside with this 275 on the 10 ET25 wheel, and it will completely fill it out.

09-19-2012, 02:54 PM	#1
lutfy Captain 252 Rep 633 Posts Drives: G87 M2, NASA ST5 86, Defender Join Date: Mar 2012 Location: Washington DC iTrader: (1)	*1810 ET25 Track tire choices** Guys, I did do a search and was able to find some answers but the variables (suspension, spacers etc.) were different. I have a set of 18*10 ET 25 wheels which I run just for the track. Its a stock E90 and I intend to add -3 camber up front soon (GC Plates). Previously I ran 275/18s front and rear. The tires are gone and before I purchased another set of Toyo R888 or R1s, wanted to know my options please: 1) What is the maximum I can stuff on these wheels without rubbing or running spacers. Can I go 285s in the front or 275s is about the limit? What about the rears? Would 295s or 305s work? 2) If I ran spacers, what would my option be then without rubbing? Again car is not lowered and running stock brakes. Basically looking for an option to run the widest rubber on a stock setup. Thank you in advance. Lutfy
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10-23-2012, 07:34 AM	#2
Car54 Captain 36 Rep 927 Posts Drives: 2014 M-Sport Wagon - EBII Join Date: Sep 2007 Location: Lutz, FL iTrader: (1)	If you go bigger than 275 on a 10" rim you'll start to lose steering feel. Read the tire specs as each tire is different. Might want to look into Nitto NT01's in 275/35. BTW...how do you like the mix of PFC 01 and 08? I'm also running 01's in the rear and 08 in the front. __________________ Craig Brickner Click to Join: BMWCCA # 366493
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10-23-2012, 09:49 AM	#3
checkmate Major 119 Rep 1,497 Posts Drives: AW M3 E90 Join Date: Apr 2010 Location: Bel Air, MD iTrader: (2)	I did a square set of PSS 275/25/18. Wih PSS, rain or shine...it owns the track. On the flip side, I think NT-01s or Dunlop Direzza manage heat better (based on hearsay not experience).
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10-23-2012, 03:59 PM	#4
Expert@ApexWheels BimmerPost Supporting Vendor 3519 Rep 6,701 Posts Drives: M3 Join Date: Jun 2012 Location: Bay Area iTrader: (0)	The 18x10" ET25 supports the 275/35/18 tire sidewall very well, any larger and the tires will balloon a bit. We would recommend sticking to the 275/35/18 tire size for the best steering response and sidewall support. __________________ 925-245-0773 /// info@apexraceparts.com Wheels /// Accessories /// Vehicle-Specific Fitment Guides /// Careers
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10-23-2012, 05:14 PM	#5
Car54 Captain 36 Rep 927 Posts Drives: 2014 M-Sport Wagon - EBII Join Date: Sep 2007 Location: Lutz, FL iTrader: (1)	David, Good call on the Anthracite with Jerez! __________________ Craig Brickner Click to Join: BMWCCA # 366493
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10-23-2012, 06:54 PM	#7
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	I use a 18x10 et25 set up all around. With 3+ camber up front and 2+ in the rear. Due to the amount of camber, I can easily use 10 mm spacers front and rear on 275/35/18 Continental scrubs. However, it is pretty tight in the rear (tire to fender) with spacers. There's plenty of room if you don't use spacers in the back. Front space I cannot say since I have aftermarket struts. One consideration is that there are not too many tires available in 285/35/18. 285/30/18 offers more but you would lose your side wall. Another consideration is the balance. The M3 understeers from the factory, so depending on your set up you may prefer a square over a staggered.
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10-23-2012, 11:31 PM	#9
Protocav Private 4 Rep 62 Posts Drives: 2008 E90 M3 Join Date: Aug 2012 Location: San Diego iTrader: (0)	I put a set of 275/35-18 Nitto NT-01's on a 9.5/10.5 wheel setup this evening. They are bulgy on the 9.5 and pretty square on the 10.5. They fit like 285's and would be perfect on 10's. A 275 might sound small for a 10" wide wheel if it was a street tire, but the NT-01 runs really wide. You will have tons of room to the inside with this 275 on the 10 ET25 wheel, and it will completely fill it out.
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