Add on A/C

[BowTieJohn]

Does anyone know of a company that makes add on A/C for Corvairs?

[bbodie52]

Opinions on putting A/C in an EM Coupe
http://www.corvairforum.com/forum/viewt ... 714#p42714

http://www.corvairforum.com/forum/viewt ... 513#p59513

Tue Sep 23, 2014 1:02 pm

I've done clark's Aftermarket AC on my 64 and mounted it to the engine hood. It works great and I haven't seen any airflow or overheating problems.

Clark's does make the kit so that you can mount the condenser in the front trunk and talk about options with fans to blow air over it. However it requires some cutting and modifications that I didn't want to do to my car.

Happy to give you pics of the setup if you like.
Doug Gault
Fort Worth, Texas

http://www.corvairforum.com/forum/viewt ... upe#p79486










You might send him a PM (Private Message if you have questions...

Doug Gault
Fort Worth, Texas
http://www.corvairforum.com/forum/membe ... ile&u=3859



http://www.corvair.com/user-cgi/catalog ... _page=AC-1


http://www.corvair.com/user-cgi/catalog ... _page=AC-3

[66vairguy]

The Clark's EM kit to mount the condenser on the engine lid is a nice setup. In very hot climates it might require the addition of an electric fan to improve cooling. That's not a knock on the kit, just typical for R134 refrigerant systems in very hot climates.

I really detest the front trunk condenser installs. You loose the trunk because of a big hole in bottom for the condenser. Not much in the way of keeping out the elements. Also an electric fan is mandatory up front since airflow will be marginal.

I noticed in the pictures a factory under dash housing was used. Not sure if that was an original unit or does Clark's repro it? Generic under dash units are sold.

A word of caution. Charging R134 is a precise operation. There have been a few problems with the Clark's kits that were caused by an unskilled A/C technician overcharging the system. Unlike R12 that tolerates overcharging, R134 is dependent on observing the high side vs low side pressures calculated for the ambient conditions while monitoring the evaporator outlet temperature. Add too much coolant and the evaporator will be less efficient (less cooling for the same compressor effort) and the compressor can start "growling" at a certain RPM.

Oh - if you think going with R12 refrigerant will be easier realize few shops now have the equipment for R12 and those that do usually charge a hefty fee. A good A/C tech will make a R134a system work well. With modern fittings the systems don't leak down and provide years of reliable service.