Three of the top four finishers end in DQ. I haven't heard any reasons why...
Richard P.
Three of the top four finishers end in DQ. I haven't heard any reasons why...
Richard P.
Wow! Diff builders too
"It's all ball bearings these days"
Bryan Leinart
CMC #24
Here is the summary:
https://nasaspeed.news/misc/summary-...hampionships/#
And here is Jim Drago's (a top builder) explanation:
https://mazdaracers.com/topic/6956-n...read/?p=110151
-Wayne
-CMC #85
https://nasaspeed.news/misc/summary-...hampionships/#
But of course there is more to the story if you talk to a miata guy.
Bryan Leinart
CMC #24
We rebuilt the rear axles in my M3 - probably had right at 300,000 miles on it at the time. It was either $200 for the rebuild kits or $1200 for replacements.
You could tell there was some wear on the cages and bearings, which there should have been at that point, but nothing that looked or felt worn.
Based on that experience, I would say the only reason the cages may get modified at all is to make the reassembly, especially on the blind, or closed axle stub end, easier.
My early thought is the rule was exploited though I'm not convinced it created an advantage, but my experience is no wear would open up the cage enough for a bearing to pass through. To be fair, the Miata joint could be a different enough design.
And I can't imagine having to drag a tub onto the open trailer to get the race car home.
#39 CMC Camaro
Orange is Fast!
CMC-NT01 FTW!
Anyone know if this was a true competitive advantage over stock parts or just simply not stock parts?
James Proctor
http://www.jp-motorsports.com
Wow...All the issues with the dyno sound pretty good right about now.
On the mazda racers forum someone referenced an SAE paper that measured efficiency of these types of ball joints at 99.5% at 5 degrees angle. Not sure how much angle an SM puts on these but in any case it aint much.
Al Fernandez
Yeah maybe .13 hp. Maybe they had larger ball bearings? I did read that guys long post last night and it was interesting. You can reman or get reman axles but there isn't a spec on what can be done. Would love to know if it was an actual witch hunt and what the SM communities opinion is of all of this. If I remember even the winner had a DQ for the axles. Good point was asking did the subsequent winner get his axles checked and the same teardown?
Does anyone know why they even send the Miata's to the dyno? I thought it was basically an unlimited class as far as power and why they spend so much on drivetrain.
Guess a little different tech than dealing with quarter glass windows.
Bryan Leinart
CMC #24
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