neutral setup for track

328skidpad · 07-01-2010, 02:42 PM

anyone put 245 35 18 or 245 40 18 around to get a more neutral stance on stock sport oem wheels?

Obviously the other benefit is being able to rotate tires.
thanks

satakal · 07-01-2010, 02:50 PM

4 rear wheels all around is the way to go

ModBargains.com · 07-05-2010, 11:45 AM

When it comes down to performance you want to not only take into consideration the tire size, but also the wheel set up in general. Wheel weight is something that shouldn't be looked over. The Forgestar F14 flow form wheel in 18x8.5 ET48 only weighs 17.6 lbs! Flow Form Casting is a production procedure that turns the wheel (or rim section) over a special mandrel and three hydraulic rollers using tremendous pressure. The pressure and turning then force the rim area to form against the mandrel, creating the shape and width of the rim. During Flow Forming, the rim actually "flows" down to create the full rim width. During Flow Forming, pressure applied to the cast rim actually changes its mechanical properties, so its strength and impact values become similar to those of a forged rim. That translates to up to 15% less weight when compared to a standard cast wheel. Flow form wheels IS the industry standard for F1 race teams!

Forgestar wheels are also much lighter than cast wheels. The 18x8.5 F14 wheel weighs an amazingly light 17.6 lbs, where a cast wheel of this same size would weigh anywhere from 23-27 lbs. This saving of roughly 6-10 pounds per wheel makes a BIG difference in regards to handling and drivability. Reducing unsprung weight (weight that is not supported by the car's suspension, i.e wheels, tires, brake rotors, and brake calipers) is one of the easiest ways to improve your car's handling, braking, and acceleration. 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). By using this ratio if you were to replace your stock wheels that weighed 25 lbs with Forgestar wheels you would be saving 320 lbs. in static weight!

I'll shoot you over a PM with more details

- Alan

Flyer · 07-05-2010, 01:11 PM

Great info TrackRat!

07-01-2010, 02:42 PM	#1
328skidpad Lieutenant 49 Rep 494 Posts Drives: 328xi e350 Z4M X3 M40 Join Date: Jun 2005 Location: Princeton NJ iTrader: (0)	neutral setup for track anyone put 245 35 18 or 245 40 18 around to get a more neutral stance on stock sport oem wheels? Obviously the other benefit is being able to rotate tires. thanks
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07-01-2010, 02:50 PM	#2
satakal Major 95 Rep 1,476 Posts Drives: e46 Join Date: Nov 2007 Location: socal iTrader: (2)	4 rear wheels all around is the way to go
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07-05-2010, 11:45 AM	#3
ModBargains.com Banned 475 Rep 13,583 Posts Drives: JB E92 335i Join Date: Feb 2008 Location: 1721 E. Lambert Rd #C, La Habra, CA 90631 iTrader: (51)	When it comes down to performance you want to not only take into consideration the tire size, but also the wheel set up in general. Wheel weight is something that shouldn't be looked over. The Forgestar F14 flow form wheel in 18x8.5 ET48 only weighs 17.6 lbs! Flow Form Casting is a production procedure that turns the wheel (or rim section) over a special mandrel and three hydraulic rollers using tremendous pressure. The pressure and turning then force the rim area to form against the mandrel, creating the shape and width of the rim. During Flow Forming, the rim actually "flows" down to create the full rim width. During Flow Forming, pressure applied to the cast rim actually changes its mechanical properties, so its strength and impact values become similar to those of a forged rim. That translates to up to 15% less weight when compared to a standard cast wheel. Flow form wheels IS the industry standard for F1 race teams! Forgestar wheels are also much lighter than cast wheels. The 18x8.5 F14 wheel weighs an amazingly light 17.6 lbs, where a cast wheel of this same size would weigh anywhere from 23-27 lbs. This saving of roughly 6-10 pounds per wheel makes a BIG difference in regards to handling and drivability. Reducing unsprung weight (weight that is not supported by the car's suspension, i.e wheels, tires, brake rotors, and brake calipers) is one of the easiest ways to improve your car's handling, braking, and acceleration. 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). By using this ratio if you were to replace your stock wheels that weighed 25 lbs with Forgestar wheels you would be saving 320 lbs. in static weight! I'll shoot you over a PM with more details - Alan
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07-05-2010, 01:11 PM	#4
Flyer Captain 21 Rep 766 Posts Drives: 2011 e92xi Join Date: Nov 2009 Location: Richmond, VA iTrader: (8)	Great info TrackRat!
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