AC upgrade that works on 81 sc

[shbop]

Originally Posted by craigmakes3

I guess I didn't really give much of a description of what I am trying to do. i have a 81 sc coupe, with a '79 motor. I stripped out everything related to the non-functioning a/c system, so i am looking for an entire system to replace it. I hope to avoid any additional vents, fans,etc., mounted in or under the existing dashboard. I live in New England, which now gets hot as hell in July and August, and is probably more humid than the Southwestern States.

Thanks

I hope you know you're about to spend a boat-load of cash. Starting from scratch is a blank canvas for some, and a very, very deep hole for others.

[Bob Kontak]

Originally Posted by craigmakes3

I live in New England, which now gets hot as hell in July and August, and is probably more humid than the Southwestern States.

Phoenix in July is hot as hell. New England is merely obnoxious.

Even if you source used parts it will be well over $1000 if you do all the work yourself.

You may be able to buy a complete used system. Probably the cheapest in the long run if it has integrity. (This kind of purchase can also be your worst nightmare)

[kuehl]

Craig,

Maybe these parameters will help you make your decision.
You need integrity for any system, and some performance upgrades.
If we stepped back in time, 1981, and you just purchased your car from a dealer in the summer and drove it off the show room floor with the AC on, you'd turn around and drive it back.

The components you decide on will be your choice. However, designing the right system with the right components (so you don't have to do things twice) requires some thought.

Compressor - a 507 style bolting onto your original York base plate and support brackets. Some suppliers have simple adapter brackets, some provide a set that allows belt tension as well as alignment.

Hoses - barrier stock diameter, pre-cut and with fittings attached and properly orientated.

Drier - new naturally

Evaporator with TEV - there are choices; some are meager improvements and some are max'd out to their best.

Thermostat - get a new one.

Condensers - because of your climate area, it can get hot and humid on the best driving days. Condensers rule!
i) Engine deck lid, I'd suggest reviewing your existing unit, if the tubes and braze joints look good, flush it out and straighten out the fins with tweezers.
ii) Upgrade your front, again like evaporators there are meager and mighty.
iii) You will need more condenser area, hence consider a fender condenser to add on.

Vents and Blower Motors - you an probably get away with improving upon what you have with a simple Kuehl Center Vent. Crank up the blower speed with a better blower motor.

Those are the basics.

Everything you need to know about improving the SC system is mentioned
here: The Mr. Ice Project as well there are plenty of projects found throughout Pelican; one well detailed is A/C Upgrade Project starts tomorrow!

Happy Holidays