Autocross Wheels - BMW Forum

Benny Z · 02-26-2005, 10:38 PM

Thinking about picking up a set of wheels to mount some Kumho race rubber to.

What is an inexpensive lightweight OEM-sized wheel for my 325i sedan? I'm wanting to stay in stock class for now, so I must keep the OEM size.

Also, is the spring rate of the E36 M3 OEM springs stiffer than those on my 325i? If so, I believe I'm allowed to swap those in as they retain factory ride height...correct? I was thinking of mating them with some Koni or Bilstein adjustable dampeners.

Shudogg · 02-26-2005, 10:45 PM

16's come stock - what ever is the lightest i dont know...if your getting adjustable dampeners then isnt that changing it from stock? jw

Kevin325i · 02-27-2005, 12:05 AM

Ussually stock wheels can be used with any size tires. BUT you need to talk with someone from the club you'll be racing with, it varies everywhere.

Cruzin 323is · 02-27-2005, 12:06 AM

they have a nice set of 16" bbs looks alike on tirerack that weigh i think 16 lbs each! take a look!

tomctx · 02-27-2005, 12:55 AM

Quote:

Originally posted by Benny Z@Feb 27 2005, 12:38 AM
Thinking about picking up a set of wheels to mount some Kumho race rubber to.

What is an inexpensive lightweight OEM-sized wheel for my 325i sedan? I'm wanting to stay in stock class for now, so I must keep the OEM size.

Also, is the spring rate of the E36 M3 OEM springs stiffer than those on my 325i? If so, I believe I'm allowed to swap those in as they retain factory ride height...correct? I was thinking of mating them with some Koni or Bilstein adjustable dampeners.

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what size are your wheels. Some cars had 15's, some had 16's. the M3 springs are stiffer, but I think they are shorter. Need to check before you buy.

CiscoKid · 02-27-2005, 08:40 AM

go to turner motorsport. They have a nice set of OZ track wheels for cheap. They are only about $17 a piece.

Nunzio · 02-27-2005, 08:51 AM

I have these and did a few Auto X's at the end of last year. They are ASA (Licensed by BBS) meaning same build quality. I run 17x8 and I used Yokohama AVS 100's. They did quite well IMHO. I also drive the car 80 miles a day to and from work and that was a condiseration.

I picked the whole set up from the tire Rack for around $1300.

Benny Z · 02-27-2005, 07:08 PM

Quote:

what size are your wheels. Some cars had 15's, some had 16's. the M3 springs are stiffer, but I think they are shorter. Need to check before you buy.

Thank you. I think you may be the only person who replied who actually understood what I was asking.

My stock wheels are 15" alloys. I am uncertain on the width. The OEM tire size is 205/60/15.

I can change tire size, but need to keep OEM size wheels. They can be lighter than OEM, which is why I am looking for a 15" OEM-sized light-weight wheel. Sorry, I should have stated that my wheels are 15" to begin with.

Do you know where I can go to find the height and spring-rate info of the M3 v/s 325i springs? Any resources for this?

Thanks!

- Ben

tomctx · 02-27-2005, 09:07 PM

I can change tire size, but need to keep OEM size wheels. They can be lighter than OEM, which is why I am looking for a 15" OEM-sized light-weight wheel. Sorry, I should have stated that my wheels are 15" to begin with.

Do you know where I can go to find the height and spring-rate info of the M3 v/s 325i springs? Any resources for this?

Thanks!

I have found, at tire rack (www.tirerack.com) a Kosei K1 Racing wheel at about 13.2 pounds. They also have SSR wheels, which are light, but expensive. M3's seem to sit lower than 325's, so I believe the springs are shorter. I'm sure there is a resource, but I don't know of any, sorry. Maybe ask some of the autocross crowd how they are set up?