Re: 1947 2122

Posted by HH56 On 2014/7/21 9:47:22

If converting to 12v there are some things that will be relatively easy but if it is a well optioned Custom sedan there are some items not available in 12v versions period -- and others will be a real pain to convert. The typical dropping resistors would do for some but not work well on other components. Finding a 12v solenoid for the large 356 starter would be quite the challenge. You may have to consider a dual voltage distribution to have some items work properly and other things like the solenoid will still be a challenge.

I am adding air to my 2122 and have decided to stay with 6v by converting a modern AC unit. Have done some experimenting and found some blower units will actually work acceptably on 6v. The compressor is the biggest sticking point since there appear to be no 6v clutches available anymore. Several documented cases where the 12v Sanden will work on a 6v car. Reasoning is it works by virtue of the 7.2 or so volts the generator normally puts out which is at the bottom of Sanden specs but just barely enough to engage the clutch. Others are not convinced so alternatives are being explored.

My AC is more of a research and seeing if it can be done project so have gone farther in the conversion than may be necessary. Point of this ramble is if you are thinking of converting only for the addition of AC there might be options. You could spend the money and time on a higher output generator or alternator instead of a total conversion.