Wheel weights discussion

B6/7 S4/RS4
#7

my wheels are 16.1lbs each with center caps, the lug bolts and spacers add a few more ounces. The RS3s are a heavy tire though due to their super beefy nature, so together its about 42lbs per corner.

My old oz ultraleggeras were 37.5lbs per corner, the conti xontact sport 3 tires they had were only 20lbs a piece

magnesium alloyed wheels are a cool idea, but iirc they are no longer used in motorsport becuase of the combination of super hot carbon ceramic rotors and the violent flammability of magnesium

for me there while a lighter wheel is always better there is a diminishing return between a well designed and forged aluminum wheel vs a carbon fiber barrel/face or magnesium wheel. An SSR, volk, OZ or enkei wheel would always be my choice.

#8

My summer set up is this:

http://i275.photobucket.com/albums/jj283/supremepowerparts/Picture14489.jpg

They’re Neuspeed RS10, forged in 19x8.5 and weigh in at 20lbs. I’ll probably go to a lightweight 18" wheel next summer.

Currently have 18" BBS RX II (about 24-25lbs) for winter and looking for something lighter.

#9

those are damn light considering the size. They’re also a reasonably aggressive offset aren’t they? ET35?

AndyGs4 has a set of those.

#10

Yea, ET35. With a 245/35 tire they come pretty close to rubbing on stock suspension.

I’ve only put about 4000 miles on them but they seem to be holding up really well to the shitty new england roads.

#11

My forgestar f14 wheels 19x10 et 30 weigh just under 26lbs. Not bad for the size of them

#12

Good time for the discussion. I’m still gutted at missing out on those Volks on AZ. But I’m not in a rush to buy.

I’ve been using this site: http://www.wheelweights.net/ I have no idea how accurate they are though.
The links above are useful, useful to have multiple resources.

After I found out that bee was running 17" Oz Ultras on his old S4 and cleared the brakes, I’m on the lookout for a set of those. Having said that, it was also said that aftermarket 17’s should clear the S4’s brakes. I know 91 is selling his 19’s and on the lookout for 17’s in his quest for world domination.

Questions:

  1. If you have 2 wheels of the same weight (say 19lbs) but one is 17" and the other is 18", am I right in thinking that the 17" yield the faster acceleration times, because the rotating mass is closer to the centre of the wheel?
  2. To carry on the theme - what’s the “sweet spot” for (a) 18 inch wheels (say 18x8 for the sake of argument) and (b) 17 inch wheels (17x8) regarding the tyre’s profile/sidewall.
  3. In terms of load rating, are there any caveats for downsizing the S4’s wheels to 17"? IIRC OEM tyres come with the XL load rating, which my 18" all seasons have. My 17" winters are not XL rated (98 rated).
#13
  1. yes, less torque to spin it. Consider how much of the weight is in the barrel vs the face/backplate of the wheel. A smaller barrel moves a large proportion of the mass inwards
#14

Here…these will make those Volks look heavy lol

http://forums.quattroworld.com/classifieds-wheels/threads/1711.phtml#6454

although I’m not a huge fan of the polish lip look. Could always take them to Hamilton Wheel Wizards and get them made gunmetal for a fair price.

SSR COMP TYPE C

http://img.photobucket.com/albums/v662/adamb1923/Parts/5b4bdab7.jpg

#15

Hmmm… SSR comps/type C. Very nice. Do JHM run 17" or 18" versions of these on one of their shop cars? I guess 18" will mean clearance of any brakes, including BBK (which I would only do for the bling factor, my understand is that our stock brakes are more than enough for street use). Decisions, decisions.

Thanks bee, that’s what I thought.

#16

I’m going to be buying a set of 18x8 RPF1’s over the winter. I’m going to be ordering a JHM BBK in the next month or so, so 18’s are really my only option. Plus, red brembos look amazing behind the thin spokes of the Enkei’s

#17

Yea that guy is ok lol

Seriously guys, for those OZ’s I’m very motivated to sell so make me an offer, low ball me please, I do not mind.

Bango, those were never for my b6, I bought them for my mk6 gti but ended up buying set of 17" rpf1’s for it. They weigh 15.2 lbs each! My JHM bbk won’t allow me to run anything smaller than the 18" rpf1’s I have on there right now.

Btw, I’m on my 4th set of rpf1’s now lol

#18

holy shit, those Enkei wheels really are the best combo of light and reasonable price. Amazing how light they are.

I think Jay’s car had Volk TE37 wheels on there at one point. Now he has some OZ wheels. He has their Brembo Cayenne BBK so he’s definitely 18 at the least.

#19

speak of the devil. 8.0x19" RPF1

18.7 lbs each I believe.

http://www.audizine.com/classifieds/showproduct.php?product=62597&title=19-26quot-3b-enkei-rpf1-lightweight-wheels&cat=48

#20

Wow that’s a good looking wheel for a cheap price. I wish I had the money right now; I’d be all over those.

#21

WTF? I’m selling mine for $500 with tires. It would cost maybe $250 to fix the two bent outer lips.

#22

My bad, can’t remember the other thread where I’ve misrepresented, think it was on the 'tex. But 4th set of RFP1’s - what happened to the others? (Presumably one on the S, the other on the GTI?)

#23

lol, i keep selling them to change things up and i run back everytime because for the price, i cant find a better candidate.

#24

so fix them and ask 900

asking means jack shit anyway. 91gl would be a good guy to ask what the market is on these, since he has made the bid and ask side on that market over the years lol.

What tires are on yours? Any life left in them?

#25

500 for 19" rpf1’s with tires? holy shit please post more details like size offset bore size and post pics! people are idiots if they dont jump on that deal.

#26

Here is a site you all might like if you haven’t seen it:

http://mechdb.com/index.php/19"_Wheel_weights#

Dave