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Installed the V8R rear hubs last week, ran them at the track yesterday. So far so good, I was running the original Mazda hubs until now, no signs of failure but it seemed like good insurance. The black oxide coating is nice too.
I picked up a 513155 front hub for my 1990 NA Miata. Wondering if anyone can help me identify if it's genuine? It is not labelled Timkin anywhere on the part, and the bearing also has no markings. It came in the orange/black Timkin box from amazon, with a made in China label.
The thickness of the hub (where the disc brake and wheel sit against) is .2" or 7/32", which seems thin compared to photos of some others I have seen.
It also has the ABS ring on it, which I don't need. Any point in pulling it off?
Thanks for the help!
Well, so much for the V8R rear hubs. I installed these in 2020, have done about 4 or 5 track days since then. Looks like they are two pieces welded together, with essentially zero weld penetration. WTF!
Our flanges are one piece, machined from a forged billet.
yeah, car is fine. The axle nut kept the wheel on, and I noticed it while driving home from work. Surely I can’t be the only one who suffered a failure of these V8R hubs? I only have ~240 ft lbs of torque and 225 RS4s. It failed while street driving. And they are supposed to handle V8 torque?
I only swapped the rear hubs as preventative maintenance. And then this happens! I would have been better off leaving it alone. Now I need a new axle and wheel bearing too.
yeah, car is fine. The axle nut kept the wheel on, and I noticed it while driving home from work. Surely I can’t be the only one who suffered a failure of these V8R hubs? I only have ~240 ft lbs of torque and 225 RS4s. It failed while street driving. And they are supposed to handle V8 torque?
I only swapped the rear hubs as preventative maintenance. And then this happens! I would have been better off leaving it alone. Now I need a new axle and wheel bearing too.
The OEM hubs fail after by fracturing in that same spot. Not a ton of data but the data points we do have indicate high risk between 75-200hrs of competition style driving. Much of that data comes from this thread.
The OEM hubs fail after by fracturing in that same spot. Not a ton of data but the data points we do have indicate high risk between 75-200hrs of competition style driving. Much of that data comes from this thread.
These failed after approximately 4 hours of HPDE, and less than 1000 miles of easy street driving.
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