Thermostat placement RV2 compressor

Mako21 said
I’ve tried contacting Original Air for tech support, but have been waiting for a call back or even email for over a couple weeks now. I’ll ask here and maybe someone can help.

Long story short I had my RV2 overhauled and am converting to R134. I purchased the Original Air thermostat kit and am trying to figure how to install/wire this thing up. Can anyone offer advice? Here is thekit:
1961-79 MOPAR A/C Thermostat Switch Kit 134A

Thanks.

View attachment 1716204286

I'm somewhat facing the same questions myself.. but a totally different scenario. I'm doing a Hemi swap. But last year, I did do a complete revamp, upgrading to a sanden style compressor kit from Original Air and it came with that thermostat. I opted not to use it at the time because I knew there was already a thermostat in the box that also acts a compressor switch.. so I just left things as is. The switch allows current to the compressor (with a binary switch in there somewhere) but also has the thermostat built into it that allows for it to thermally shut off if it detects a freeze. So the switch is kinda needed or the compressor will just run no matter what the temp is set at.. you can here the switch click as you slide the temp up and down.

The aftermarket switch can be added to the firewall and the probe can be carefully wrapped around the low side (larger) fitting and tube coming out of the firewall. Clean the fitting and metal tube portion of that line with scotch bright, sand paper, wire etc brush prior to wrapping the probe around it. DO NOT kink the probe. Use a small hose clamp and lightly clamp it in place, holding it firmly to the tube. Use the black butyl tape to wrap around the fitting and probe to insulate it from engine heat. The wire that runs to the compressor will need to be cut and routed through the switch.. 1 terminal is power in and the other is power out. Basically cut the wire in two, put female terminal on each end and plug it into the switch... direction doesn't matter. I'm not sure about that filter tho.

The way I'm thinking of doing it is to put the probe in it's original placement in the evap core. I've read that it only needs to go in a few inches (giggity). It's a hard spot to get o but since my column is loose right now, it might not be too bad. But, the original switch needs to remain wired and the wire just needs to be cut after the switch and routed through the new thermostat. I'll just move the original probe up outta the way somewhere and mount the new switch someplace convenient .

Not sure if you have looked into condensers but you might.. more efficient The 134 condensers are pretty reasonable from Bouchillon . I actually ended up getting something else since my build is a different animal, but you might look into it.

ac multipass condensers - Bouchillon Performance Engineering