RX8 to RX7 ABS sensor/calibration
#1
RX8 to RX7 ABS sensor/calibration
The RX8 uses a different style front hub assembly from the RX7, and it looks like the ABS sensor is configured differently in that on the RX7 you bolt the sensor to the upright and there are gear-like teeth on the back of the hub, whereas on the RX8 it seems to be self-contained in the hub, and you just plug into the back of it.
QUESTION: How ridiculously impossible would it be to adapt a plug to an RX8 hub to the RX7 ABS system? Is it the same sort of signal?
RX8 Style:
https://www.ebay.com/p/Wheel-Hub-Front-Left-right-Driver-or-Passenger-Side-RH-LH-Driver-passenger/1575701757?iid=352224580404&_trkparms=aid%3D222007 %26algo%3DSIM.MBE%26ao%3D1%26asc%3D49923%26meid%3D 7de3f31e89a944c2987b5fd1f3f76728%26pid%3D100005%26 rk%3D1%26rkt%3D6%26sd%3D131907379792%26itm%3D35222 4580404&_trksid=p2047675.c100005.m1851
RX7 Style:
https://www.ebay.co.uk/itm/FOR-Mazda...-/151278801655
RX7 ABS Sensor
https://www.ebay.ca/itm/ABS-Wheel-Speed-Sensor-Front-Right-AIRTEX-5S6390-fits-93-95-Mazda-RX-7/112056740721?fits=Make%3AMazda%7CModel%3ARX-7&hash=item1a171a2b71:g:0hoAAOSweM1aDHc9&vxp=mtr
And yes, there is a top-secret feindish plot involved.
QUESTION: How ridiculously impossible would it be to adapt a plug to an RX8 hub to the RX7 ABS system? Is it the same sort of signal?
RX8 Style:
https://www.ebay.com/p/Wheel-Hub-Front-Left-right-Driver-or-Passenger-Side-RH-LH-Driver-passenger/1575701757?iid=352224580404&_trkparms=aid%3D222007 %26algo%3DSIM.MBE%26ao%3D1%26asc%3D49923%26meid%3D 7de3f31e89a944c2987b5fd1f3f76728%26pid%3D100005%26 rk%3D1%26rkt%3D6%26sd%3D131907379792%26itm%3D35222 4580404&_trksid=p2047675.c100005.m1851
RX7 Style:
https://www.ebay.co.uk/itm/FOR-Mazda...-/151278801655
RX7 ABS Sensor
https://www.ebay.ca/itm/ABS-Wheel-Speed-Sensor-Front-Right-AIRTEX-5S6390-fits-93-95-Mazda-RX-7/112056740721?fits=Make%3AMazda%7CModel%3ARX-7&hash=item1a171a2b71:g:0hoAAOSweM1aDHc9&vxp=mtr
And yes, there is a top-secret feindish plot involved.
#5
RX-7 Bad Ass
iTrader: (55)
Haha, haven't had a need to . This is going to be one of those "get the parts and compare and figure it out" projects.
Hey, I bought a used RX-8 AC system to see if any parts could be used on an FD .
Dale
Hey, I bought a used RX-8 AC system to see if any parts could be used on an FD .
Dale
#11
~17 MPG
iTrader: (2)
I've only found some of the info I would want to check, but it looks like the type of wheel speed sensor on the RX-8 is similar to the type of wheel speed sensor on the RX-7. The docs I'm finding show that both are 2-wire Variable Reluctance sensors and will output a sinusoidal waveform. The next piece of the puzzle is finding how many teeth will be present on the trigger wheels, for instance if the RX-7's ABS system is expecting 50* teeth per wheel revolution it would need to see that exact same number of teeth per wheel revolution from the RX-8 hub.
* 50 is a guess, not sure it's actually looking for 50. I'll keep digging.
* 50 is a guess, not sure it's actually looking for 50. I'll keep digging.
#13
~17 MPG
iTrader: (2)
If the photo for this hub is accurate, it looks like there are 44 teeth per wheel revolution.
https://www.autopartswarehouse.com/s.../TM512118.html
If you have the RX-8 hub, it may be possible to remove the sensor, mark teeth with a paint pen, and slowly spin the hub to count how many teeth are on the wheel.
https://www.autopartswarehouse.com/s.../TM512118.html
If you have the RX-8 hub, it may be possible to remove the sensor, mark teeth with a paint pen, and slowly spin the hub to count how many teeth are on the wheel.
#15
A little bit of research suggests that it is also 44 teeth. I think I'll get ahold of a hub to confirm. It may be a matter of simply splicing the connector plug onto the FD wiring.
https://www.rx8club.com/series-i-tec...-teeth-264274/
https://www.rx8club.com/series-i-tec...-teeth-264274/
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