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SN95 ABS Module Relocation

70
79
Exp. Type
Autocross
Exp. Level
5-10 Years
Virginia
On the SN95 cars the ABS module is on the front passenger frame rail mounted up near the radiator. It's got some weight to it, 8 lbs. I'm thinking of mounting it somewhere else to keep weight off the nose. But also it could balance out the weight of the battery? Do you think it's worth it to move to new location?

I'll add that my car does not currently have ABS and I'm in the process of adding it. So it's the same amount of work to add it anywhere. Since my dash is gutted, I'm thinking of mounting it inside the car, under the dash. But I know all the wiring will reach the factory location and I could get factory brake lines, instead of making custom lines.
 
70
79
Exp. Type
Autocross
Exp. Level
5-10 Years
Virginia
I think I've convinced myself to relocate the ABS inside the car. Pros outweigh the cons.

Original LocationRelocated Under Dash
ProsUsing removed harness, wires will reach factory connections
Could get factory brake lines
Factory mounting
Weight behind front wheel axis
Shorter brake line routings
Uses empty space under dash
ConsMounted forward of front wheel axis
Not plug and play since car didn't have ABS
Clutters engine bay
Custom wiring
Custom brake lines
Custom mounting
Could be noisy in car when active
 
I would add having super hot oil in the passenger cabin to the cons of under dash. Please make sure you put a good shield around it and any lines! I like reading your posts and want to see you keeping at it :)
 
70
79
Exp. Type
Autocross
Exp. Level
5-10 Years
Virginia
I would add having super hot oil in the passenger cabin to the cons of under dash. Please make sure you put a good shield around it and any lines! I like reading your posts and want to see you keeping at it :)
A shield is a good idea, although the dash will act as a shield. How often do hard lines burst though (aside from rusted ones). I'm installing all new custom hard lines using copper nickel brake lines.
 
70
79
Exp. Type
Autocross
Exp. Level
5-10 Years
Virginia
There were two potential relocations I was considering. One being in the engine bay on the driver side where the relay box is located. I liked how close this was to master cylinder and looked factory. But would require relocating fuse box or battery. Both of which I didn't want to get into yet. Second location being under the dash as described above. So I got it mounted to the inner firewall using the factory bracket and some welded bolt pads. Looks good and is secure. Plenty of room for easy plumbing and wiring.

As far as mounting in the drivers cockpit, a lot of race cars have it mounted inside. But hydraulic pressure and hot items are always a concern.

PXL_20220126_235943551.jpg
 
Upgrading to a more "intelligent" unit from other (newer) cars is always an option, though I'm not sure how easy it is. Check out the ones that Vorshlag has played with. The factory SN95 units aren't that great, and with good brakes, sticky tires, and a good driver, you can do better generally. Mine on my "racecar" has never been hooked up and I've never missed it. I removed the unit in favor of a delete block for weight purposes and for more space to install a larger radiator.
 
70
79
Exp. Type
Autocross
Exp. Level
5-10 Years
Virginia
Upgrading to a more "intelligent" unit from other (newer) cars is always an option, though I'm not sure how easy it is. Check out the ones that Vorshlag has played with. The factory SN95 units aren't that great, and with good brakes, sticky tires, and a good driver, you can do better generally. Mine on my "racecar" has never been hooked up and I've never missed it. I removed the unit in favor of a delete block for weight purposes and for more space to install a larger radiator.
How new are you talking? S197 and after require CANbus except for the Ford Racing ABS module (FR500). The FR500 would be ideal, but pricier. The one I have is from a 1999 Cobra, so it's the more ideal 4 channel brake and should be setup better for the larger cobra brakes I have. I'm assuming yours was the 3 channel.

I've never raced with ABS. It might be the grass is always greener on the other side kind of thing. If I don't like it then I can also remove it. For autocross, I really think it's going to help the car. I can see how on a road course it might not be as beneficial, where trying to carry more momentum through turns. And the turns are not nearly as tight.
 

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