Notices
Race Prep Miata race-only chat.
Sponsored by:
Sponsored by: 949 Racing

Miata Track Hubs: Custom design

Old Feb 26, 2016 | 01:40 PM
  #21  
slammed200's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Jun 2012
Posts: 486
Total Cats: 30
From: Knoxville, TN
Default

If someone knew more about electronics and we could use an alternative sensor that packaged well would be another option.
Old Feb 26, 2016 | 01:40 PM
  #22  
slammed200's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Jun 2012
Posts: 486
Total Cats: 30
From: Knoxville, TN
Default

For reference, here is their X-Tracker hub they developed with SKF

C6 Corvette SKF HD (X-tracker) Racing Hubs w/Active (Bosch) ABS Sensor
Old Feb 26, 2016 | 01:42 PM
  #23  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

An alternative sensor wouldn't help, it has to mount in the same place.

The rear tone rings are on the axles, so no issues there.

All you need is a tone ring that fits in the original front location, and has the same teeth per revolution. Thats not super hard to find.

Then just space the sensor out the correct distance.

I would be happy to test all of the above in exchange for a beta set of hubs
Old Feb 26, 2016 | 01:42 PM
  #24  
slammed200's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Jun 2012
Posts: 486
Total Cats: 30
From: Knoxville, TN
Default

Since they are going with a clean design, we can try to source a more cost effective (higher volume) stud and offer those as well. Trying to maintain the OEM 12mm x 1.5 thread so you don't have something different front to back though
Old Feb 26, 2016 | 01:43 PM
  #25  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Originally Posted by slammed200
For reference, here is their X-Tracker hub they developed with SKF

C6 Corvette SKF HD (X-tracker) Racing Hubs w/Active (Bosch) ABS Sensor
I would have to see the output of the sensor to compare to the Miata output. But with the correct number of teeth and the correct output signal its possible.
Old Feb 26, 2016 | 01:45 PM
  #26  
slammed200's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Jun 2012
Posts: 486
Total Cats: 30
From: Knoxville, TN
Default

Originally Posted by aidandj
An alternative sensor wouldn't help, it has to mount in the same place.

The rear tone rings are on the axles, so no issues there.

All you need is a tone ring that fits in the original front location, and has the same teeth per revolution. Thats not super hard to find.

Then just space the sensor out the correct distance.

I would be happy to test all of the above in exchange for a beta set of hubs
My thought was to replace the tone ring and pick, moving to something integrated that could potentially package better. The small diameter of the tone ring is the issue, and without moving the pickup I don't see anything easing that
Old Feb 26, 2016 | 01:46 PM
  #27  
slammed200's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Jun 2012
Posts: 486
Total Cats: 30
From: Knoxville, TN
Default

Originally Posted by aidandj
I would have to see the output of the sensor to compare to the Miata output. But with the correct number of teeth and the correct output signal its possible.
Exactly, that's what I'm after
Old Feb 26, 2016 | 01:46 PM
  #28  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Originally Posted by slammed200
My thought was to replace the tone ring and pick, moving to something integrated that could potentially package better. The small diameter of the tone ring is the issue, and without moving the pickup I don't see anything easing that
As long as you match the teeth per revolution and the vr signal output you should be fine.

Send me a prototype and I'll test it
Old Feb 26, 2016 | 05:29 PM
  #29  
j_man's Avatar
Senior Member
 
Joined: Dec 2007
Posts: 741
Total Cats: 20
Default

Originally Posted by GraemeD
The rings are the same across all model years, I'm using '04 abs brick in a '94 chassis.
No. Mazda changed/upgraded the front ones (IIRC sometime in '04). Thus the late NB have different front rings and sensors.


Old Feb 26, 2016 | 05:39 PM
  #30  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

I believe the sensors are still interchangeable. I just setup an NA ABS hub with an MSM front sensor.
Old Feb 26, 2016 | 07:26 PM
  #31  
j_man's Avatar
Senior Member
 
Joined: Dec 2007
Posts: 741
Total Cats: 20
Default

Originally Posted by aidandj
I believe the sensors are still interchangeable. I just setup an NA ABS hub with an MSM front sensor.
The newer sensor part number doesn't supersede the old one, so I would keep each sensor type to their corresponding trigger ring type (especially for such critical thing as the ABS system).
Not all MSM use the new type front sensors/rings. The change happened somewhere in the middle in their life cycle and is not MSM specific but affects all NB cars.
Old Feb 26, 2016 | 07:29 PM
  #32  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Interesting. I have 8 sensors at home, and a few look different. I will take pictures and compare when I get my spindles back from powdercoating.
Old Feb 26, 2016 | 07:54 PM
  #33  
codrus's Avatar
Elite Member
 
Joined: Mar 2007
Posts: 5,298
Total Cats: 884
From: Santa Clara, CA
Default

Originally Posted by aidandj
Then just space the sensor out the correct distance.
How are you going to space out the front sensor when it mounts through the upright? You'd need to drill a new hole.



--Ian
Attached Thumbnails Miata Track Hubs: Custom design-abs23.jpg  
Old Feb 26, 2016 | 07:55 PM
  #34  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Very true, I was thinking about the rear.

The integrated sensors look boss
Old Feb 27, 2016 | 12:37 AM
  #35  
cordycord's Avatar
Elite Member
iTrader: (2)
 
Joined: Dec 2011
Posts: 3,400
Total Cats: 560
From: SoCal
Default

Not to hijack, but I'm FEA testing front and rear hubs now. Samples will then be tested by Keith Tanner and others. Soon. Price = competitive with Mazda, and will include 70mm studs pre-installed.

The big difference? Tapered bearings.
Old Feb 27, 2016 | 11:42 AM
  #36  
EErockMiata's Avatar
Senior Member
 
Joined: May 2011
Posts: 638
Total Cats: 76
Default

Originally Posted by cordycord
Not to hijack, but I'm FEA testing front and rear hubs now. Samples will then be tested by Keith Tanner and others. Soon. Price = competitive with Mazda, and will include 70mm studs pre-installed.

The big difference? Tapered bearings.
yuusssss
Old Feb 27, 2016 | 09:27 PM
  #37  
Mobius's Avatar
Elite Member
iTrader: (2)
 
Joined: May 2008
Posts: 3,469
Total Cats: 365
From: Portland, Oregon
Default

No abs would be a non-starter for me as well. I won't give up ABS.
Old Feb 27, 2016 | 09:59 PM
  #38  
hi_im_sean's Avatar
SadFab CEO
iTrader: (3)
 
Joined: Sep 2012
Posts: 4,560
Total Cats: 1,143
From: your mom's house phoenix, AZ
Default

Originally Posted by cordycord
Not to hijack, but I'm FEA testing front and rear hubs now. Samples will then be tested by Keith Tanner and others. Soon. Price = competitive with Mazda, and will include 70mm studs pre-installed.

The big difference? Tapered bearings.
Attached Thumbnails Miata Track Hubs: Custom design-80-boom_goes_the_dynamite_geeksandcleats_2aa0807dc7f21663cb0c90b38b3ed3554e438500.jpg  
Old Feb 27, 2016 | 11:47 PM
  #39  
k24madness's Avatar
Senior Member
iTrader: (6)
 
Joined: Jun 2010
Posts: 1,421
Total Cats: 95
From: San Rafael, CA
Default

Originally Posted by cordycord
Not to hijack, but I'm FEA testing front and rear hubs now. Samples will then be tested by Keith Tanner and others. Soon. Price = competitive with Mazda, and will include 70mm studs pre-installed.

The big difference? Tapered bearings.
Holy crap that's great news!!!
Old Mar 1, 2016 | 02:38 PM
  #40  
hornetball's Avatar
Elite Member
iTrader: (4)
 
Joined: Mar 2008
Posts: 6,301
Total Cats: 697
From: Granbury, TX
Default

I've gone through 3 front hubs in 2 years of tracking the Red car. 2 were bearings. But 1 was cracking of the hub itself, which was pretty nasty although I didn't lose a wheel and was able to limp it in.

I've lost 2 rear hubs, both cracked although I caught those cracks with inspections.

So, tapered bearings is only a partial solution for me if we're building "lifetime" hubs. And, yes, $3-400 for a lifetime hub seems like money well-spent.

Thread Tools
Search this Thread

All times are GMT -4. The time now is 09:23 PM.