Does the height of the ABS unit matter???
07-31-2013, 04:42 PM
#1
Burning Brakes
Thread Starter
Does the height of the ABS unit matter???
My buddy is relocating his ABS unit and I was wondering if there's a certain way it must be installed. For example, does it need to be a certain distance from the master cylinder or can it not be installed any lower than the calipers or any higher than the MC? Things like that.
Anyone know.
Anyone know.
08-01-2013, 10:18 AM
#6
Burning Brakes
Its a completely sealed hydraulic system that depends on pressure- not gravity. I know of at least one person who has relocated it to inside the passenger compartment (on a dedicated race car). As long as it's bled completely there should be no reason the elevation should be an issue.
08-01-2013, 11:15 AM
#7
Burning Brakes
Thread Starter
I know the system doesn't depend on gravity. The reason why I'm asking is because of air bubbles. For example; you know how calipers are suppose to be installed with the bleed screw on top, not on the bottom. This is done so when the air bubbles travel upwards you have a way of bleeding them out. If you were to mount a caliper with the bleed screw on the bottom, you'll never be able to bleed the system.
What you're saying makes sense though.
We're thinking about mounting it in the rear of the car and just extending the wires. Does anyone think there will be any issues if we simply extend the harness by soldering in more wire between the plug and harness? Same gauge of course.
What you're saying makes sense though.
We're thinking about mounting it in the rear of the car and just extending the wires. Does anyone think there will be any issues if we simply extend the harness by soldering in more wire between the plug and harness? Same gauge of course.
Last edited by Sparo2; 08-01-2013 at 11:24 AM.
08-01-2013, 12:56 PM
#8
Safety Car
ABS wires need to be twisted pairs, otherwise fine. The module takes some juice, so run appropriately (i.e. increased) gauged power wire and keep the ground short.
Really no need to "round trip" the rear ABS sensor wires (which run up to the front on 99+ cars) if you are putting the module back there, just run new wires to the new location.
Really no need to "round trip" the rear ABS sensor wires (which run up to the front on 99+ cars) if you are putting the module back there, just run new wires to the new location.
08-01-2013, 01:14 PM
#9
Racer
ABS wires need to be twisted pairs, otherwise fine. The module takes some juice, so run appropriately (i.e. increased) gauged power wire and keep the ground short.
Really no need to "round trip" the rear ABS sensor wires (which run up to the front on 99+ cars) if you are putting the module back there, just run new wires to the new location.
Really no need to "round trip" the rear ABS sensor wires (which run up to the front on 99+ cars) if you are putting the module back there, just run new wires to the new location.
the power feed to the module is pretty beefy
08-01-2013, 05:02 PM
#11
Safety Car
Keep the unit below the top of the master cylinder fluid level, that's the only restriction.
Most hydraulic units are fused at 40A, some new cars are higher, up to 60. The high current draw is for the pump motor. Use 10 guage wire for power and ground, that will be adequate for anywhere you put it on a C5. Only the CAN lines need to be twisted pair.
Most hydraulic units are fused at 40A, some new cars are higher, up to 60. The high current draw is for the pump motor. Use 10 guage wire for power and ground, that will be adequate for anywhere you put it on a C5. Only the CAN lines need to be twisted pair.
Last edited by ScaryFast; 08-01-2013 at 05:07 PM.
08-01-2013, 06:32 PM
#13
Safety Car
Do you have a C5 or C6? C5 and 2005 C6 is not CAN-based and use a single bus wire.
Regarding the use of twisted pairs -here is a link to the schematic and the text of the "!" icon description
Regarding the use of twisted pairs -here is a link to the schematic and the text of the "!" icon description
