Forged RS4 Replicas?
11-30-2007, 10:18 AM
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Forged RS4 Replicas?
Anyone know where I can get forged RS4 replicas?
If I had to guess, they would be 15lbs lighter than stock wheels (assuming stock wheels are 5lbs).
What kind of difference would 60lbs in total unsprung weight make in performance?
If I had to guess, they would be 15lbs lighter than stock wheels (assuming stock wheels are 5lbs).
What kind of difference would 60lbs in total unsprung weight make in performance?
11-30-2007, 11:46 AM
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18"x8.5" ET 38 from Velocity Motorsports=23.8 lbs, which is only....
2 lbs. more than the 19" x 8" Hartmann forged.
They're not forged, but they are nice, and light for a cast wheel.
Oh, BTW - I run them as my summer set up, and weighed them personally.
They're not forged, but they are nice, and light for a cast wheel.
Oh, BTW - I run them as my summer set up, and weighed them personally.
12-01-2007, 05:42 AM
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I think that's a subjective thing. I personally can easily tell the difference between my...
..B7 RS4 reps (23.8 lbs each) and my OZ Superleggeras (18 lbs. each).
5.8 lbs/corner may not sound like much, but I feel it in the way the suspension reacts and the way the car moves off the line.
Others have mentioned that they don't notice the difference at all. I guess our "butt-dynos" all have differing levels of sensitivity! ;-)
Truly, though, reducing unsprung weight will help all aspects of performance - that is, acceleration in ANY direction, be that longitudinal, lateral or rotational.
That's why racing cars often use Magnesium wheels - super light! They're also flammable, but hey, anything in the name of performance, right? ;-)
5.8 lbs/corner may not sound like much, but I feel it in the way the suspension reacts and the way the car moves off the line.
Others have mentioned that they don't notice the difference at all. I guess our "butt-dynos" all have differing levels of sensitivity! ;-)
Truly, though, reducing unsprung weight will help all aspects of performance - that is, acceleration in ANY direction, be that longitudinal, lateral or rotational.
That's why racing cars often use Magnesium wheels - super light! They're also flammable, but hey, anything in the name of performance, right? ;-)
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12-01-2007, 06:44 AM
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I think the rims were just under 27lb each when I put mine on a scale.....
Where are you get 50+lbs each?<ul><li><a href="https://forums.audiworld.com/rs4b7/msgs/54969.phtml">https://forums.audiworld.com/rs4b7/msgs/54969.phtml</a</li></ul>
12-01-2007, 09:38 AM
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Re: I think the rims were just under 27lb each when I put mine on a scale.....
sorry for the confusion. i saw an older posting that had the stock wheels at 35lbs each. so using a 20lb wheel on each corner would be a savings of 15lbs each (60lbs in total). but then, you weighed in the stock wheel at around 27lbs ...
12-02-2007, 05:30 AM
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Re: I think the rims were just under 27lb each when I put mine on a scale.....
No big deal; I just didn't want you to have an unrealistic idea of the weight you might save. I have found that along with all of the great information we have on this board a small amount of it can be misinformation. Especially from some of the BMW guys that don't even own an Audi.