PS2 at the front / S-drive at the back = steering issue ?

kirvan599 · 12-06-2011, 06:35 PM

problem solved

Bandini3 · 12-06-2011, 07:02 PM

Any suggestions?

Yes, any driver who has an interest in vehicle dynamics and handling feel will want a matched set of tires -- same brand, same model, and either a 'square' (identical size) or, on RWD performance cars, 'staggered' (rear tire wider than front) setup.

Different tire models will behave differently in terms of adhesion, slip and sidewall flexing. You, being presumably a perceptive driver, can detect this difference in behaviour front-to-rear. The vehicle's handling dynamics have been thrown off by the mismatch in tire performance.

The alternative would be to drive slow, avoid energetic turns and turn up the sound system. Then, perhaps you won't notice the quirky feel.

kirvan599 · 12-06-2011, 07:13 PM

i can only feel it in high speed turn, not when i corner hard, maybe it will get better after they broke in

Atomicteal_M3 · 12-06-2011, 07:35 PM

Quote:

Originally Posted by kirvan599

i can only feel it in high speed turn, not when i corner hard, maybe it will get better after they broke in

Post pics of your rear wheels.

catch · 12-06-2011, 07:45 PM

I was running PS2s on the front and another tire on the back for a little bit... car didnt handle properly, nor really feel right to me even in a straight line.
The day I swapped to matching tires again it felt normal....

kirvan599 · 12-06-2011, 07:53 PM

Quote:

Originally Posted by catch

I was running PS2s on the front and another tire on the back for a little bit... car didnt handle properly, nor really feel right to me even in a straight line.
The day I swapped to matching tires again it felt normal....

what tire were you running at the back ?

kirvan599 · 12-06-2011, 08:06 PM

Quote:

Originally Posted by BLKLYZ

Post pics of your rear wheels.

i'll post some pic tomorrow

12-06-2011, 06:35 PM	#1
kirvan599 First Lieutenant 13 Rep 332 Posts Drives: '08 E92 335i Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (3) Garage List 2008 E92 335i [0.00]	PS2 at the front / S-drive at the back = steering issue ? problem solved __________________ Last edited by kirvan599; 09-12-2012 at 08:28 PM.. Reason: problem solved
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12-06-2011, 07:02 PM	#2
Bandini3 Reader 31 Rep 126 Posts Drives: 535xi, 435xi Join Date: Apr 2011 Location: Northeast iTrader: (0)	Mismatched Front - Rear Tires Any suggestions? Yes, any driver who has an interest in vehicle dynamics and handling feel will want a matched set of tires -- same brand, same model, and either a 'square' (identical size) or, on RWD performance cars, 'staggered' (rear tire wider than front) setup. Different tire models will behave differently in terms of adhesion, slip and sidewall flexing. You, being presumably a perceptive driver, can detect this difference in behaviour front-to-rear. The vehicle's handling dynamics have been thrown off by the mismatch in tire performance. The alternative would be to drive slow, avoid energetic turns and turn up the sound system. Then, perhaps you won't notice the quirky feel.
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12-06-2011, 07:13 PM	#3
kirvan599 First Lieutenant 13 Rep 332 Posts Drives: '08 E92 335i Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (3) Garage List 2008 E92 335i [0.00]	i can only feel it in high speed turn, not when i corner hard, maybe it will get better after they broke in __________________
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12-06-2011, 07:45 PM	#5
catch Major General 669 Rep 7,148 Posts Drives: F80 M3 Join Date: Jan 2009 Location: Thornhill iTrader: (27)	I was running PS2s on the front and another tire on the back for a little bit... car didnt handle properly, nor really feel right to me even in a straight line. The day I swapped to matching tires again it felt normal.... __________________ 2016 F80 M3 Mineral White/Sakhir Orange 2013 BMW S1000RR Flat Silver <stolen> 2007 BMW E92 335i Jet Black/Jade Grey <sold>
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