stock rim weight?

I keep hearing 24 lbs. but I don't know if anyone has ever verified it by weighing the heavy mofos.
 
I just read a copy of Modified magazine at the store. There was an article comparing gravity cast to MAT cast to SSR to fully forged wheels. I browsed over most of the technical information and jumped right to the test results. The wheels were all run on an EVO with the same pair of tires, identical fuel volume in the tank, same driver etc. In other words, a proper and scientific test. On the test track, there was scant difference in the times they could muster between all the wheels. The differences were so small they were deemed negligible. Suprisingly the fastest times were NOT with the fully forged Volk's but with a set of 5-zigen cast.

They reasoned the issue has mostly to do with the tires and the fact that most of the rotational mass at the outside of the tire is responsible for the test results. So.......looks like tire weight is more important than wheel weight. I would imagine having both of them as light as possible would provide the best results however.

Not that magazine test results are the be all, end all, last word on all subjects automotive but these are interesting findings. For me personally, I had been keeping the Enkei RPF1 in the back of my mind as an upgrade some day due to their light weight and low cost. Now they don't quite have the same priority. The RPF1 are still a solid choice, but I think I'll start looking for better looking wheels that are still lighter than stock but give me the look I'm after.

Here's the article.

http://www.modified.com/tech/modp-0906-mitsubishi-lancer-evo-9-wheel-tester/index.html
 
I keep hearing 24 lbs. but I don't know if anyone has ever verified it by weighing the heavy mofos.
I did. Weighed both a stocker and an RX-8 on a calibrated digital scale when I was swapping wheels.

Stocker = 24 lbs

RX-8 = 22 lbs
 
RPF1's
 

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i have RPF1's too and i could tell a difference form stock when i put them on. the car lost traction a lot more when hitting boost in 1st and 2nd.
 
It's total wheel/tire weight that's most important. Total unsprung weight on each hub is what to look at. Unspring weight is your enemy.
 
It's total wheel/tire weight that's most important. Total unsprung weight on each hub is what to look at. Unspring weight is your enemy.

remember..you wheel can be really light, but if the tire is really heavy too, that will kill your performance gains of having a light wheel. Alll that rotational mass on the outside is bad.
 
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