BMW 3-Series (E90 E92) Forum - View Single Post

IN54NITY · 02-04-2011, 11:05 AM

It sounds like you've left some rubber down on Route 7. Good to hear. I have found the same problem as you, I corded 2 sets of front RE050As at the shoulder last summer, and I am now on my second set of front Yokohama Neova AD08s - all in one year. The AD08s do have a tire shoulder that is more square. The RE050As as you know are quite rounded. Square shoulder design, IMO, is more resistant to wear ~some~. I can't say if regular tires are more resistant to RFTs with ~same~ tire shoulder design, as I don't have the experience to compare the two. I will say though that I corded my front AD08s (~with~ camber plates though!) closer to the tire center, mostly due to braking. I finished off the AD08s in two days at HPR and one day at Pueblo, which btw has very rough pavement. I will tell you that the importance of correct (on the high side) tire pressure is paramount, so bring tire chalk or windshield paint and mark your shoulders! (See http://racingready.com/2010/05/27/ti...s-tuning-tips/ and http://racingready.com/wp-content/up...angle-mark.jpg) In your case (since you have stock suspension), IMO, the next important thing is having ~patience~ with the throttle coming out of turns. Remember that our cars have a propensity to understeer, meaning the front tire slip angles are greater than the rear tire slip angles, and the front tires will reach their cornering limit before the rears. So if you apply throttle too early, near the limit, all you will do is rub your front tire's rubber off the shoulder without going any faster! (The sensation will be that your car is pushing, and not turning.) I hope this helps. Hope to see you out there at HPDEs, I'm in Louisville.

Some tire links:
http://www.tirerack.com/tires/tires....VAN+Neova+AD08

Your former RE050As
http://www.tirerack.com/tires/tires....+RE050A+II+RFT

Another good tire:
http://www.discounttiredirect.com/di...%2FPerformance

My next HPDE tire: =)
http://www.tirerack.com/tires/tires....r&tireModel=R6

Edit: if you're really serious:
http://www.e90post.com/forums/showthread.php?t=440609

02-04-2011, 11:05 AM	#3
IN54NITY Major nutz 86 Rep 1,488 Posts Drives: '09 n54 e92xi, 6mt, kw v3 Join Date: Sep 2009 Location: Colorado, USA iTrader: (0) Garage List 2009 335xi [8.89]	It sounds like you've left some rubber down on Route 7. Good to hear. I have found the same problem as you, I corded 2 sets of front RE050As at the shoulder last summer, and I am now on my second set of front Yokohama Neova AD08s - all in one year. The AD08s do have a tire shoulder that is more square. The RE050As as you know are quite rounded. Square shoulder design, IMO, is more resistant to wear ~some~. I can't say if regular tires are more resistant to RFTs with ~same~ tire shoulder design, as I don't have the experience to compare the two. I will say though that I corded my front AD08s (~with~ camber plates though!) closer to the tire center, mostly due to braking. I finished off the AD08s in two days at HPR and one day at Pueblo, which btw has very rough pavement. I will tell you that the importance of correct (on the high side) tire pressure is paramount, so bring tire chalk or windshield paint and mark your shoulders! (See http://racingready.com/2010/05/27/ti...s-tuning-tips/ and http://racingready.com/wp-content/up...angle-mark.jpg) In your case (since you have stock suspension), IMO, the next important thing is having ~patience~ with the throttle coming out of turns. Remember that our cars have a propensity to understeer, meaning the front tire slip angles are greater than the rear tire slip angles, and the front tires will reach their cornering limit before the rears. So if you apply throttle too early, near the limit, all you will do is rub your front tire's rubber off the shoulder without going any faster! (The sensation will be that your car is pushing, and not turning.) I hope this helps. Hope to see you out there at HPDEs, I'm in Louisville. Some tire links: http://www.tirerack.com/tires/tires....VAN+Neova+AD08 Your former RE050As http://www.tirerack.com/tires/tires....+RE050A+II+RFT Another good tire: http://www.discounttiredirect.com/di...%2FPerformance My next HPDE tire: =) http://www.tirerack.com/tires/tires....r&tireModel=R6 Edit: if you're really serious: http://www.e90post.com/forums/showthread.php?t=440609 Last edited by IN54NITY; 02-04-2011 at 12:14 PM..
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