Corner weight balancing

uplusd · 01-11-2013, 07:40 PM

Quick, and possibly silly, question about CWB. I'm wondering if which wheels you have effects the balance? Like for example if I corner weight balance my car with one set of wheels, and then put on another set, does it throw off the balance?

bigjae1976 · 01-11-2013, 07:51 PM

I would say no. Maybe if you have staggered wheels that are significantly different in weight for a weird reason. Even then I think the difference will be negligble.

Snertz · 01-11-2013, 07:54 PM

Since CWB takes into account the wheel weight, I think it does though to a very minimal effect since changing wheels results in perhaps <10lb total change per corner.

bigjae1976 · 01-11-2013, 08:00 PM

The key is the cross weights and the proportional weight at each corner. So if you put wheels that are all 2lbs heavier at all 4 corners, it has no effect on those numbers.

Raucky2000 · 01-11-2013, 10:04 PM

Not a big enough difference for you to notice IMHO, one set to another.

Techevo · 01-17-2013, 11:47 AM

No, changing wheels makes no difference to corner weighting adjustments.

Corner weighting is done to adjust suspension lengths so that they give an even cross corner footprint. Think of it as adjusting a tables leg lengths so that the table doesn't wobble due to one or two legs being too short.

In adjusting the lengths, you are trying to obtain equal cross corner weights (as said by bigjae) so the front left and rear right weights added together equal the front right and rear left.

The only way to change weight distribution is by physically moving weight around, and cannot be done by corner weighting.

ortho281 · 02-24-2013, 11:03 AM

Quote:

Originally Posted by Techevo

No, changing wheels makes no difference to corner weighting adjustments.

Corner weighting is done to adjust suspension lengths so that they give an even cross corner footprint. Think of it as adjusting a tables leg lengths so that the table doesn't wobble due to one or two legs being too short.

In adjusting the lengths, you are trying to obtain equal cross corner weights (as said by bigjae) so the front left and rear right weights added together equal the front right and rear left.

The only way to change weight distribution is by physically moving weight around, and cannot be done by corner weighting.

^This. I used my street wheels/tires to do my corner-balancing because they were relatively new and the track tires were un-evenly worn!

Superfly_M3 · 02-24-2013, 12:25 PM

Does CWB have that of a drastic effect on the way the car handles?

bigjae1976 · 02-24-2013, 10:45 PM

Depends how far off it is. If your close is pretty close to stock is should already be close. If you've got the full interior...unnecessary. Since you did put on TCKlines...as long as your car has a similar height ratio from side to side and front to back as the stock suspension...it should be close optimal.

IMO, corner balancing is only necessary when you've added a lot of weight or took some off. Otherwise its a very fine tuning detail step.

I have removed about 300 lbs from my track car...so I will corner balance it.

01-11-2013, 07:40 PM	#1
uplusd First Lieutenant Drives: 2013 E92 M3 Join Date: Nov 2011 Location: NorCal Posts: 379 iTrader: (6)	Corner weight balancing Quick, and possibly silly, question about CWB. I'm wondering if which wheels you have effects the balance? Like for example if I corner weight balance my car with one set of wheels, and then put on another set, does it throw off the balance? __________________
	Tweet

01-11-2013, 07:51 PM	#2
bigjae1976 Brigadier General Drives: 04 330Ci, 11 E90 M3 Individual Join Date: Mar 2006 Location: Milwaukee, WI Posts: 4,066 iTrader: (8)	I would say no. Maybe if you have staggered wheels that are significantly different in weight for a weird reason. Even then I think the difference will be negligble. __________________ Sponsored by Momentum BMW #593...We Bleed BMW BLUE!

01-11-2013, 08:00 PM	#4
bigjae1976 Brigadier General Drives: 04 330Ci, 11 E90 M3 Individual Join Date: Mar 2006 Location: Milwaukee, WI Posts: 4,066 iTrader: (8)	The key is the cross weights and the proportional weight at each corner. So if you put wheels that are all 2lbs heavier at all 4 corners, it has no effect on those numbers. __________________ Sponsored by Momentum BMW #593...We Bleed BMW BLUE!

02-24-2013, 10:45 PM	#9
bigjae1976 Brigadier General Drives: 04 330Ci, 11 E90 M3 Individual Join Date: Mar 2006 Location: Milwaukee, WI Posts: 4,066 iTrader: (8)	Depends how far off it is. If your close is pretty close to stock is should already be close. If you've got the full interior...unnecessary. Since you did put on TCKlines...as long as your car has a similar height ratio from side to side and front to back as the stock suspension...it should be close optimal. IMO, corner balancing is only necessary when you've added a lot of weight or took some off. Otherwise its a very fine tuning detail step. I have removed about 300 lbs from my track car...so I will corner balance it. __________________ Sponsored by Momentum BMW #593...We Bleed BMW BLUE!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

01-11-2013, 07:54 PM	#3
Snertz H O O N Drives: ein M?! Join Date: Oct 2008 Location: NY Posts: 512 iTrader: (7)	Since CWB takes into account the wheel weight, I think it does though to a very minimal effect since changing wheels results in perhaps <10lb total change per corner.

01-11-2013, 10:04 PM	#5
Raucky2000 First Lieutenant Drives: SGM E90 M3 dct Join Date: Nov 2012 Location: Ohio Posts: 332 iTrader: (1)	Not a big enough difference for you to notice IMHO, one set to another.

01-17-2013, 11:47 AM	#6
Techevo Evo Junkie Drives: E91 325D M-Sport, Evo 6 Join Date: Dec 2009 Location: Bedford, UK Posts: 48 iTrader: (0)	No, changing wheels makes no difference to corner weighting adjustments. Corner weighting is done to adjust suspension lengths so that they give an even cross corner footprint. Think of it as adjusting a tables leg lengths so that the table doesn't wobble due to one or two legs being too short. In adjusting the lengths, you are trying to obtain equal cross corner weights (as said by bigjae) so the front left and rear right weights added together equal the front right and rear left. The only way to change weight distribution is by physically moving weight around, and cannot be done by corner weighting.

02-24-2013, 12:25 PM	#8
Superfly_M3 Captain Drives: 2011 M3 Sedan Join Date: Sep 2011 Location: Toronto Posts: 883 iTrader: (0)	Does CWB have that of a drastic effect on the way the car handles?