Light Weight Wheels (Advan RS-DF VS stockers)

MF80 · 10-03-2010, 03:59 PM

I just wonder...what kind of benefits can you get from running light weight wheels such as Advan RS-DF (or some other brand with similar weight) comparing to stockers. Do you actually notice any performance improvement from daily driven or tracking???

Weight w/o tires:

189 Styling front 18x8.0 = 24.8 lbs.
189 Styling rear 18x8.5 = 26.3 lbs.

VS

Advan RS-DF front 19x9 = 18.4 lbs
Advan RS-DF rear 19x10 = 19.0 lbs

Thanks,

D_o_S · 10-03-2010, 04:16 PM

For every 1 kg of unsprung mass saved, it is similar to reducing 2x - 4x the same sprung mass...

The car will accelerate, turn and brake better.

ModBargains.com · 10-04-2010, 04:58 PM

As a general estimate, 1 pound of unsprung weight is equal to 10 pounds of static weight. (weight that is supported by the vehicle's suspension). So for example, with the weights your provided your stock 189s weigh a total of 102.20 lbs and the ADVAN RZ-DF weight 74.80 lbs. You're actually saving about 322 lb total or 80.50 lbs per corner!! Going with a light weight wheel such as the ADVAN RZ-DF is defintely going to make a big difference in terms of acceleration, braking, handling, and many other performance aspects of your vehicle. I'll shoot you over a PM with more details!

- Alan

enrita · 10-04-2010, 05:07 PM

my car has improved massively with the Advan RZ-DF compaired to the CSL reps i had. Its much lighter and reactive on all conditions, steering wheel is much more precise. I did not expect such a big difference and i am very pleased with them. Now i just need to test them on the track.

Ryan@IND · 10-07-2010, 04:06 PM

The RZ-DF is definitely a great lightweight/Strong forged wheel from Advan.

Unsprung weight savings really come into play on acceleration and braking.
The lower unsprung weight is what will allow you to brake late and blast out of a corner better than when you have much heavier weight on the corners. The "felt" reduction in weight is definitely more than removing the equal weight from static/body components.

The key here is that Yokohama original designs has had a long history of racing and due to homologation rules, have always made lightweight cast wheels under the Advan line. They have kept true to their principles and worked their magic on a lightweight forged wheel. You can't go wrong with these, whether it is for looks or for performance.

this is a matte black set that we did on our customer's car.

remmib · 10-07-2010, 04:17 PM

^Those black wheels really shows the lovely Brembo's.

TSM330i · 10-08-2010, 11:47 AM

My Advan RS weigh a little less than the DF, but mine are 18".

You will definitely feel a difference in the cars performance. Yes, wheels ARE a performance part when they are light weight.

The only thing that's going to "hurt" you is the 19" diameter. If you put the weight of the wheel farther away from the center line (i.e. 19" vs. 18"), then the rotational mass will have a stronger adverse affect.

10-03-2010, 03:59 PM	#1
MF80 Captain 45 Rep 809 Posts Drives: AW 2008 E92 335i Join Date: Dec 2009 Location: Area51 iTrader: (10)	Light Weight Wheels (Advan RS-DF VS stockers) I just wonder...what kind of benefits can you get from running light weight wheels such as Advan RS-DF (or some other brand with similar weight) comparing to stockers. Do you actually notice any performance improvement from daily driven or tracking??? Weight w/o tires: 189 Styling front 18x8.0 = 24.8 lbs. 189 Styling rear 18x8.5 = 26.3 lbs. VS Advan RS-DF front 19x9 = 18.4 lbs Advan RS-DF rear 19x10 = 19.0 lbs Thanks,
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10-03-2010, 04:16 PM	#2
D_o_S LCI'd 283 Rep 822 Posts Drives: 335i LCI Join Date: Feb 2008 Location: Home iTrader: (1)	For every 1 kg of unsprung mass saved, it is similar to reducing 2x - 4x the same sprung mass... The car will accelerate, turn and brake better.
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10-04-2010, 04:58 PM	#3
ModBargains.com Banned 492 Rep 13,582 Posts Drives: JB E92 335i Join Date: Feb 2008 Location: 1721 E. Lambert Rd #C, La Habra, CA 90631 iTrader: (51)	As a general estimate, 1 pound of unsprung weight is equal to 10 pounds of static weight. (weight that is supported by the vehicle's suspension). So for example, with the weights your provided your stock 189s weigh a total of 102.20 lbs and the ADVAN RZ-DF weight 74.80 lbs. You're actually saving about 322 lb total or 80.50 lbs per corner!! Going with a light weight wheel such as the ADVAN RZ-DF is defintely going to make a big difference in terms of acceleration, braking, handling, and many other performance aspects of your vehicle. I'll shoot you over a PM with more details! - Alan
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10-04-2010, 05:07 PM	#4
enrita Major General 163 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	my car has improved massively with the Advan RZ-DF compaired to the CSL reps i had. Its much lighter and reactive on all conditions, steering wheel is much more precise. I did not expect such a big difference and i am very pleased with them. Now i just need to test them on the track. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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10-07-2010, 04:06 PM	#5
Ryan@IND 1842 Rep 7,632 Posts Drives: ACR Join Date: Mar 2008 Location: Chicago iTrader: (18)	The RZ-DF is definitely a great lightweight/Strong forged wheel from Advan. Unsprung weight savings really come into play on acceleration and braking. The lower unsprung weight is what will allow you to brake late and blast out of a corner better than when you have much heavier weight on the corners. The "felt" reduction in weight is definitely more than removing the equal weight from static/body components. The key here is that Yokohama original designs has had a long history of racing and due to homologation rules, have always made lightweight cast wheels under the Advan line. They have kept true to their principles and worked their magic on a lightweight forged wheel. You can't go wrong with these, whether it is for looks or for performance. this is a matte black set that we did on our customer's car.
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10-07-2010, 04:17 PM	#6
remmib General 1596 Rep 29,218 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	^Those black wheels really shows the lovely Brembo's. __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
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10-08-2010, 11:47 AM	#7
TSM330i 2006 330i, TSM, Black, manual, sport 899 Rep 3,698 Posts Drives: '17 C2, GTI, Z4 3.0si Racecar Join Date: Nov 2005 Location: Chester Springs, PA iTrader: (2)	My Advan RS weigh a little less than the DF, but mine are 18". You will definitely feel a difference in the cars performance. Yes, wheels ARE a performance part when they are light weight. The only thing that's going to "hurt" you is the 19" diameter. If you put the weight of the wheel farther away from the center line (i.e. 19" vs. 18"), then the rotational mass will have a stronger adverse affect. __________________ 2017 Porsche C2 - manual of course 2015 GTI S 2008 BMW Z4 3.0si Coupe - because racecar
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