Tire setup for track racing

E92inSG · 09-17-2013, 07:16 AM

Ok I'm about to bite the bullet and splash for a set of semi slicks.

My rim setup is TE37SL 18x9.5 front and 18x10.5 rear.

Currently on hankook R-S3 265/35 and 285/35

Will most likely be going for Pilot Sport Cups for my next competitive event.

I can either go 265/35 and 295/30 or I was also thinking of running a square 285/30/18 to provide a bit more grip upfront (slight understeer currently) and also maybe extend tire life by rotation (not a huge concern)

What would you hardcore track guys recommend?

1) stay with 265/35 and 295/30

2) go 285/30 square on staggered wheels

3) go 285/30 front and 295/30 rear

E92inSG · 09-17-2013, 07:33 AM

Edited 1st post

Porschefile · 09-17-2013, 09:40 AM

Definitely option 2 or 3. Wider tires up front= more overall grip for sure, and likely better balance. 275 square on 10's works well.

1MOREMOD · 09-17-2013, 09:52 AM

option 4- square set of tires and wheels. if you have staggered wheels and square tires means you cant change front to rear at the track to even wear out which is the advantage of having a square set in the first place.

E92inSG · 09-17-2013, 10:04 AM

Like I said for me the advantage of square setup is more of the additional rubber in front vs the possibility of front to rear rotation.

I definitely won't be getting another set of wheels so option 4 is out

So
With that outta the way,
You guys are saying I shouldn't run square tires on non square setup?

mkPOTO · 09-17-2013, 10:22 AM

yes squared, I ran staggered and you can tell the car twitches a bit, so I went with 18x10 apex with 285 tires and the car feels planted!

E92inSG · 09-17-2013, 10:28 AM

So there shouldn't be any issue running square tires on non square wheels yah?

1MOREMOD · 09-17-2013, 11:08 AM

no you can do it but might want to think about 275-35 square as you are putting a pretty wide tire already on the front 9.5 rim.

E92inSG · 09-17-2013, 11:11 AM

MPSC doesn't come in 275/35

anyway i found some good info from michelin themselves so looks like i'm gonna stick with 265/35 in front and 295/30 rear

FYI

1MOREMOD · 09-17-2013, 11:17 AM

265 shows fits 9-10.5? i ran advan ad08s in 265-30-19 as my track tire for a time and still think the benefit of square front to back outweighs slight decrease in tire width in the rear. your entry and mid corner speed will be better and handle more neutrally and exit will only suffer slightly.

E92inSG · 09-17-2013, 11:35 AM

Hmm so your saying I should decrease rear width? I always thought the way to go square was to increase front width instead.

Will do a bit more research

swartzentruber · 09-17-2013, 11:58 AM

Why PSC? I think there are far better R-comps for cheaper. I had them once, never bought them again.

Groundpilot · 09-17-2013, 12:06 PM

+1. PSC are not nearly as good as BFG R1

E92inSG · 09-17-2013, 12:06 PM

Quote:

Originally Posted by swartzentruber

Why PSC? I think there are far better R-comps for cheaper. I had them once, never bought them again.

What would you recommend?

E92inSG · 09-17-2013, 12:11 PM

Quote:

Originally Posted by Groundpilot

+1. MPC are not nearly as good as BFG R1

I'm not allowed to use straight grooved semis in my class.

radiantm3 · 09-17-2013, 12:14 PM

Get Hankook TD's. They are worlds better than PS Cups (or R888's). I just ran them last week and I'm in love with these tires. They come in 265/295 as well (that's what I run). Feels like and endless amount of grip.

E92inSG · 09-17-2013, 12:30 PM

Quote:

Originally Posted by radiantm3

Get Hankook TD's. They are worlds better than PS Cups (or R888's). I just ran them last week and I'm in love with these tires. They come in 265/295 as well (that's what I run). Feels like and endless amount of grip.

That's the only other alternative I was considering.

Z221.

So u ran both and the TD's were noticeably faster?

1MOREMOD · 09-17-2013, 03:55 PM

Quote:

Originally Posted by E92inSG

I'm not allowed to use straight grooved semis in my class.

try nt01. comes with thread.

OC3 · 09-17-2013, 05:00 PM

Quote:

Originally Posted by E92inSG

Hmm so your saying I should decrease rear width? I always thought the way to go square was to increase front width instead.

Will do a bit more research

I run 285/30/18 TD's (squared) on TE37SL 18x10.5 squared. Fits perfectly, no rubbing, no need for spacers, etc.

And, 275/35/18 NT01's (squared) on TE37 18x10.5 squared. Works great too.

E92inSG · 09-17-2013, 05:56 PM

What do a set of TDs run for in those sizes in USA?

radiantm3 · 09-17-2013, 05:57 PM

Quote:

Originally Posted by E92inSG

That's the only other alternative I was considering.

Z221.

So u ran both and the TD's were noticeably faster?

The cups were horrible. And once you pass the fairly low limits of grip they just give out from under you with little warning.

OC3 · 09-17-2013, 06:29 PM

Quote:

Originally Posted by E92inSG

What do a set of TDs run for in those sizes in USA?

$1,300 or so.

09-17-2013, 07:16 AM	#1
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	Ok I'm about to bite the bullet and splash for a set of semi slicks. My rim setup is TE37SL 18x9.5 front and 18x10.5 rear. Currently on hankook R-S3 265/35 and 285/35 Will most likely be going for Pilot Sport Cups for my next competitive event. I can either go 265/35 and 295/30 or I was also thinking of running a square 285/30/18 to provide a bit more grip upfront (slight understeer currently) and also maybe extend tire life by rotation (not a huge concern) What would you hardcore track guys recommend? 1) stay with 265/35 and 295/30 2) go 285/30 square on staggered wheels 3) go 285/30 front and 295/30 rear __________________ IG @f80_guy
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09-17-2013, 07:33 AM	#2
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	Edited 1st post __________________ IG @f80_guy
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09-17-2013, 09:40 AM	#3
Porschefile Major 59 Rep 1,250 Posts Drives: E92 M3 Join Date: Jul 2008 Location: Tennessee iTrader: (7)	Definitely option 2 or 3. Wider tires up front= more overall grip for sure, and likely better balance. 275 square on 10's works well.
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09-17-2013, 09:52 AM	#4
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	option 4- square set of tires and wheels. if you have staggered wheels and square tires means you cant change front to rear at the track to even wear out which is the advantage of having a square set in the first place. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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09-17-2013, 10:04 AM	#5
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	Like I said for me the advantage of square setup is more of the additional rubber in front vs the possibility of front to rear rotation. I definitely won't be getting another set of wheels so option 4 is out So With that outta the way, You guys are saying I shouldn't run square tires on non square setup? __________________ IG @f80_guy
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09-17-2013, 10:22 AM	#6
mkPOTO Mr. Nice Says Hello 635 Rep 16,662 Posts Drives: BMW M3 \| X5 xdrive 35i MSport Join Date: Dec 2008 Location: USA iTrader: (25) Garage List 2002 Lexus GS300 [0.00] 2008 BMW E92 M3 [5.58]	yes squared, I ran staggered and you can tell the car twitches a bit, so I went with 18x10 apex with 285 tires and the car feels planted!
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09-17-2013, 10:28 AM	#7
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	So there shouldn't be any issue running square tires on non square wheels yah? __________________ IG @f80_guy
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09-17-2013, 11:08 AM	#8
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	no you can do it but might want to think about 275-35 square as you are putting a pretty wide tire already on the front 9.5 rim. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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09-17-2013, 11:11 AM	#9
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	MPSC doesn't come in 275/35 anyway i found some good info from michelin themselves so looks like i'm gonna stick with 265/35 in front and 295/30 rear FYI __________________ IG @f80_guy
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09-17-2013, 11:17 AM	#10
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	265 shows fits 9-10.5? i ran advan ad08s in 265-30-19 as my track tire for a time and still think the benefit of square front to back outweighs slight decrease in tire width in the rear. your entry and mid corner speed will be better and handle more neutrally and exit will only suffer slightly. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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09-17-2013, 11:35 AM	#11
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	Hmm so your saying I should decrease rear width? I always thought the way to go square was to increase front width instead. Will do a bit more research __________________ IG @f80_guy
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09-17-2013, 11:58 AM	#12
swartzentruber Captain 30 Rep 742 Posts Drives: 2011 E90 M3 Join Date: Oct 2008 Location: Chicago NW suburbs, IL iTrader: (0)	Why PSC? I think there are far better R-comps for cheaper. I had them once, never bought them again. __________________ 2011 Jerez Black/Fox Red E90 M3 DCT, ZCP, ZCV, ZCW, ZP2, BMW Apps 2015 Golf R
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09-17-2013, 12:06 PM	#13
Groundpilot Banned 476 Rep 1,711 Posts Drives: 135I DCT , e92 M3 DCT, Audi A6 Join Date: Mar 2010 Location: long island,ny iTrader: (0)	+1. PSC are not nearly as good as BFG R1
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09-17-2013, 12:14 PM	#16
radiantm3 Apex Everything! 976 Rep 4,378 Posts Drives: 2007 Honda S2000, 2017 GT350 Join Date: Sep 2008 Location: Cedar Park, TX iTrader: (6) Garage List 2011 E92 M3 [9.35] 2014 BMW i3 [10.00]	Get Hankook TD's. They are worlds better than PS Cups (or R888's). I just ran them last week and I'm in love with these tires. They come in 265/295 as well (that's what I run). Feels like and endless amount of grip. __________________ 2011 E92 M3(Sold). 2007 Honda S2000 (Track Car). 2016 Cayman GT4 (Sold). 2017 Shelby GT350 (AKA Crowd Killer). My pet project: https://stickershift.com
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09-17-2013, 05:56 PM	#20
E92inSG Captain 553 Rep 815 Posts Drives: F80 M3 Join Date: Jul 2012 Location: Asia iTrader: (1)	What do a set of TDs run for in those sizes in USA? __________________ IG @f80_guy
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