| Fully agree you can’t have too much grounding. I like the added headlight grounds.
Adding to the challenge, I have to imagine the internal mass to crank in a C-300 Hemi is a lot more than in a flathead six, plus there is the increased compression ratio which can't help either.
Chuck On Jun 30, 2024, at 1:34 PM, 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
I have been running my 1940’s Desoto’s on 6 volt for two plus decades without much drama. EXCEPT. SOME of the mechanical voltage regulators will over charge an optima 6V battery particularly if you are driving it every day. Look up my old post on this subject. Correct large cables, good grounds and 6 Volt works fine. One thing I do is to take ground flat straps and “jump” the motor mounts from the block to the frame. I also add at least two engine to firewall ground leads and I also add a body to frame ground lead at the rear of the car. Lastly, I make up a set of #10 round wires and run them from the back side of the headlight buckets to the battery ground wire. James From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> On Behalf Of Ron Waters
Sent: Sunday, June 30, 2024 10:05 AM
To: chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: RE: {Chrysler 300} 55 Imperial 8 Volt Also note that this guy’s ‘expert’ mechanic cranked up his voltage regulator to the point where his battery is overcharging and leaking acid onto the holddown strap, causing noticeable corrosion. Ron This is not a Letter Car but many things cross over thus my comments. I spent over five years restoring a like example and know the workings well. I currently have three 6 volt Chryslers and once installed with heavy battery cables, good and a strong battery (I use Optima 6 volts in a case) ZERO issues with cranking and starting. Years ago when we had our first C300 there were starting issues and I went to the 6/12 battery which worked but it looked terrible, was expensive and short life. Ken Brody approached me and said I can fix that. My first reaction was you don't know what you are talking about but after desperation I let Ken do his thing. From that day forward ZERO issues and that has been close to 30 years. Our newest C300 had cranking and starting issues even with a new 6 volt Optima battery. There was a list of repairs needed and one of them was correct battery cables. Brad Brody came over and made them correct size for the application using heaving cables. Once installed and on the first crank she fired and has done so ever since. So on that issue I agree with Ron Waters and would not call it an upgrade. Other items noted in he video (and I'm not to the end yet) was incorrect brake master and booster, wrong upper radiator hose and the list could go on. The owner states Desert Rose for the top color which it may be but not from the factor because that color wasn't offered until 1956. More than likely it was Canyon Tan which was a 1955 color. Now for my personal pet peeve, Kelsey Hayes wire wheels. KH was not the builder but MotorRim was. They were a factory option from 1953 through 1956. If you doubt me on this remove a tire and look at the stamping on the rim and it will verify this. Last, Chrysler Imperial ended with the 1954 models and in 1955 simply became IMPERIAL. This name remained for several years. It’s not an ‘upgrade’. It’s jury-rigging for folks that don’t want to rebuild their starters or replace their crusty, oxidized wiring harnesses. Ron
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