Got the remote trans cooler mounted up. Much like the fuel filter/regulator, once I got past the fact that there was no easy way to mount it without drilling holes in the floor, it didn't take much time to get it done. I have to plumb and wire it but this is where it's going to live. Under the spare tire well and behind the fuel tank is basically the only spot this thing could go though.
As is the case with everything on this car, this was not a perfect install by any stretch. It might look simple but there were hurdles. The cooler bracket on the right side is really close to the back wall of the tank, like less than 1/8". When you tighten the tank straps it pulls the tank closer to the cooler. The straps are tight enough but the nut is not all the way up. I swapped the J bolts side-to-side and tried to wiggle it as much as I could but it is what it is.
These lines are for mock up as they were some old ones I had laying around. One of the other main hassles with this deal was where the far outlet is located. It's pretty tight there behind the j-bolt but it does clear no problem. If I had a fuel cell this would have been cake but no cell so gotta do what ya gotta do.
View attachment 1716096319
Before hanging it, I cut out two strips of some neoprene tool box liner and glued them to the cooler bracket flanges so it wasn't right up against the floor. Should help to absorb a bit of vibration when the fan kicks on and maybe keep it from instantly destroying the paint. The cooler itself is a basic stacked-plate style but the bracket and fan are a nice design and it's pretty compact for what it is.
View attachment 1716096318
I'd like to be able to have the Holley ECU actuate the fan through a programmed output channel. Only caveat is that the ECU needs a 5V reference coolant temp sensor (as opposed to an older-style 12v) that can thread into a 904. I have an A&A "race prepped" case which has a couple extra ports on the right side so I should be able to install one there. I'm unsure which one would be the best though so I have to call them and ask. I also know can drill a hole for it in my pan but I'd rather not. I have a feeling that's what they're going to tell me but I'll confirm anyway.
The harness coming off the fan is just power and ground. If I can figure out the 5V sensor, that signal goes to an input channel in the ECU. It reads the temp and then sends a signal through an output channel. The signal would run to an external relay then turn the fan on at a predetermined temp and off x amount below it. It sounds complicated but it's really not.
Plumbing the lines backwards will be a PITA. Since the cooler line taps are ahead of the trans cross member I'm going to have to figure out how to get the lines through that area cleanly - there's the crossmember, exhaust etc. Right now I'm not seeing an easy way. Once beyond that point, the lines will just run along the frame connector to the rear.
Gettin' stuff done here. More to come.
