control A/C w/ classic FAST?

[buizilla]

I've been searching for this but no luck, I'm thinking a seperate switch to power up the compressor, then a hobbs switch to cut power when under boost, any info or part numbers would be great!

Thanks guys, Greg

 

[turbobitt]

You don't need to run any special switches. You will only need to ground one wire to make this work normally. Unfortunatly it has been to long for me to remember what wire it is.

Allan G.

 

[pacecarta]

find the ground lead to the ac clutch relay (under the hood passenger fender)


get a N/C hobbs switch , you can use a 0 psi hobbs or close to that (ebay has cheap ones)
attach the relay ground wire to one side of hobbs, the other side of hobbs run to good ground ,
attach hobbs to vac source

when not in boost ac will operate , when you boost switch will open and compressor will disengage

cheaper a stock oil switch also functions the same ..closed below 4psi open above 4psi but youll need to adapt the 1/4npt to the vac line

 

[buizilla]

Thats what i was looking for, thanks alot.

Greg.........