Left & Right Turbo-Twists?
11-20-2003, 01:01 AM
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Left & Right Turbo-Twists?
I like turbo twist style wheels and was wondering if anyone makes left and right wheels that are mirror images? Does it bother anyone else that the spokes point in the direction of rotation on one side of the car but not on the other? I find asymmetry very disturbing.
11-20-2003, 01:19 AM
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It took me a few months to realize that my wheels pointed different ways on each side of the car. I was bothered for a day or two, and forgot about it. After all, it did take *months* for me to notice.
11-20-2003, 01:24 AM
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Steve,
I think you are out of luck on that one. In one of the Porsche magazines (might be Panorama) that is out now, a reader asks the same question and the answer is... unfortunately no. Sorry.
Rob
I think you are out of luck on that one. In one of the Porsche magazines (might be Panorama) that is out now, a reader asks the same question and the answer is... unfortunately no. Sorry.
Rob
11-20-2003, 03:04 AM
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When I had my '86 RX-7, it had alloy wheels with similar directional spokes - and they WERE different on each side of the car! Yep - two different pairs. A great level of detail, I thought. Not on the aftermarket rims for the 928, though...
11-20-2003, 12:07 PM
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Huh - I don't understand.
Wheels are typically manufactured without a left or right side configuration - when laying them flat on the ground side-by-side, the twist direction will be the same for all of them.
It is only when they are mounted on the car that the twist direction is different between the right and left sides. Typically, when viewed from the side, the driver's side wheels will have the wheel spokes twisted clockwise, while the passenger side twist will be counter-clockwise.
Wheels are typically manufactured without a left or right side configuration - when laying them flat on the ground side-by-side, the twist direction will be the same for all of them.
It is only when they are mounted on the car that the twist direction is different between the right and left sides. Typically, when viewed from the side, the driver's side wheels will have the wheel spokes twisted clockwise, while the passenger side twist will be counter-clockwise.
11-20-2003, 04:11 PM
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But Steve you can only see one side at a time !! plus which way would be right or wrong ? perhaps that is the question . In spite of those "comments" I agree they both need to tilt forward or backward but not both ...........and no that is not an option even with Oem Porsche rims .
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11-20-2003, 07:50 PM
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Jim - For the rear wheels, you would want the spokes pointing into the direction of rotation like a saw blade. The axle's torque would be pushing into the spokes rather than pulling at them (which would have a shearing force.) The fronts then should match the rears to look right.
11-20-2003, 07:57 PM
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Ok Steve do you develop more "torque" under accelereration or braking ? How do spoked bicycle wheels work with such thin wires they would seem to easily compress and bend ?
11-20-2003, 08:17 PM
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Had twist type rims for a while.... then got rid of them. After a while I couldn't stand the ones that went the wrong direction any more. 
I can't imagine that it would be so difficult for a manufacturer to make L&R rims. With Cad it shouldn't take more than an hour to turn a left rim into a right rim... and that is if it had to be done completely manually. On a CadCam system all you would need to do is change the sign on all the Z dimentions (parallel to the axle) to get the other side. - Not to mention that he could charge a premium for rims going in the opposite direction.
I can't imagine that it would be so difficult for a manufacturer to make L&R rims. With Cad it shouldn't take more than an hour to turn a left rim into a right rim... and that is if it had to be done completely manually. On a CadCam system all you would need to do is change the sign on all the Z dimentions (parallel to the axle) to get the other side. - Not to mention that he could charge a premium for rims going in the opposite direction.
