A couple years ago I parts out a old wooden Chris Craft cruiser mainly for the running 283 engine. I happened to be shopping for parts for my 1934 Plymouth Project on E-Bay as I'm into the wiring stages of my project. As I'm going to a 12 volt system but keeping the original 6 volt gauge panel I came across something called a Stewart Warner Shunt out of an old Chris Craft Boat. From reading the auction it was used in boats to drop the amps for gauges in boats that were converted to 12 volts. Well when I was parting out this old Chris Craft I came across one of these in the wiring system. Not knowing what it was, I kept it as it was Real Cool Looking. In my quest for dropping the amps to a couple of the 6 volt electrical gauges, I was told to use something called a Runts. Also I was told that I needed one Runts per gauge. I see that these are also on E-Bay for sale. I know that all this **** gets hidden under the dash so you can't see it. My question is this??? Do I dare using this SW Shunt thing or go to using the runts. My car is a rat rod style without a lot electrical **** going on. I just have the basics. Thanks, Jim
you are not dropping amps , you are dropping voltage to the gauges the "runtz" should work fine , but there are other things available too picture of this boat part?
Use a Ford IVR-1. Available at your local NAPA dealer. If you use the Runtz, you need one for each gauge. With the IVR, one does all the gauges, much cheaper too. OR, use the boat thingy
These guys have a nice little unit. One unit does all gauges. http://vintageautogarage.com/voltage-regulator-12-volts-to-6-vo126.html While I haven't bolted one up yet, I bought two for two cars I'm working on. Nice little compact "regulator" to keep the 6volt gauges working. Well worth a look. Mike
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