Carbon fiber/magnesuium wheels for the 914 would be nice

[nine_one_4]

Ultra light carbon wheels come stateside

The gains you'd get from reducing the mass of the wheels would be greater for a "modestly" powered car like the 914 but it would probably require cubic dollars to purchase them.

[Joe Ricard]

Well that's not light unless we are talking 17 and 18 inch wheels.
I would go to 16's and put some REALLY big Hoosiers on my car. That would be cool.
Make mine all black please

[nine_one_4]

Those carbon-fibre/magnesium wheels weigh 57% less than the standard Porsche 18" wheels. If you could cut the weight of the 914's stock wheels by 57%, your car would be quicker because it takes power to accelerate the wheels both in a straight line (translationally) as well as rotationally. E.g., it takes less power to accelerate a wheel to a certain angular velocity on a chassis dyno than it does to accelerate the same wheel to the same angular velocity on a moving car. Saving weight on rotating parts is better than saving the same amount of weight on non-rotating parts.

[Joe Ricard]

If I cut my wheels and tires currently 30 pounds total rotating wieght by 57% it would be so fast I would haveto drive it on the ceiling it would be so light.

[nine_one_4]

Exactly.

[mskala]

Originally posted by nine_one_4
...If you could cut the weight of the 914's stock wheels by 57%, your car would be quicker ...

We understand the concept you're talking about. But of
course the point is moot because you can already easily
have <14 pound wheels on your 914 (15" 911 rims), so
savings by using these would be zero.

[nine_one_4]

But what if the 15" 911 rims were made out of this carbon-fibre/magnesium material? How much could you save then?



13lbs/wheel * 0.57 * 4 wheels = 29.6 pounds of rotating mass saved.