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Thanks. I will give him a call on Monday to discuss. I plan on running the fan at 24-volts to decrease the amperage draw.

Hey Mike - which controller are you running on your electric fan? I would like to have the soft-start feature and variable speed control, however to take your advice I would like to avoid the built-in controller if possible. Thanks.

Thanks for that. I think I am beginning to grasp the theory now. So in your opinion, would your circuit design replicate their OEM circuit, but increase CCA?

Would this work?

I’d sure like to know what those options are. Any advice or suggestions you can provide will be appreciated.

Well, I guess my bubble has burst. I sure did want to increase battery and amperage storage. I wish there was some way to accomplish this, but maybe not. I stand corrected and appreciate the lesson.

Guys, the 24-volts at the buss bar is produced by 2 12-volt batteries wired together in Series. For the back battery, more than 1 battery can be wired together in Parallel to maintain 12-volts while increasing the amperage by the sum of the Parallel batteries. As long as the output to the buss...

Let me get into it after my new engine, tranny, and TC have been installed and I will photo document everything in my rebuild thread. That’s when I will be setting up the system. But for your information, the 24-volt Blue Sea panel will be fed from the 24-volt buss bar on the firewall right...

Marcus - regarding the new design battery tray, yes I plan to include thick rubber isolation pads between the support legs and frame. Similar to a rubber transmission mount. In fact I may even explore using a couple of new transmission mounts so the new design will be easily duplicated for...

Hey Curt - I am of the strong opinion that your squealing belts are caused by a misalignment of the alternator pulleys to the water pump pulley. You can usually sight the belt to see if there is a slight bend in it as it crosses over the pulleys. Take a look at this with a good light and let us...

Marcus - no problem. No offense. Yeah I agree with you, there are guys out there that will buy into anything they read on some of they other forums. I am a member on a couple and you wouldn’t believe some of the stupid preppy questions I get. I used to try to respond but got tired of all the...

Marcus - thanks for your reply. I was kinda waiting for you to chime in. Everything you stated in your post is true. And while I appreciate and agree with your message, I am a little disappointed in your method of delivery, which came across as somewhat arrogant. Regardless, I will...

Yes that is my thinking also,to forego the built in controller in favor of a probe switch in my HMMWV crossover.

I believe I have found the fan. Flex-A-Lite Model 104812 is a 24-volt which moves 3,300 cfm and has an electronic controller. I will continue looking to see if I find ay other 24-volt possibilities...

Yeah I have that same setup that Leroy is offering, however I purchased my FlowKooler water pump directly from FlowKooler and my high-volume fan directly from Derale. My new clutch is NOS GM. After I thought about it and realized that the OEM fan and clutch robs horsepower, it was a no-brainer...

Ok I have made the decision to remove my brand new Derale fan and clutch and go with an electric fan instead. I’ve watched several videos including this very informative one at https://www.holley.com/blog/post/how_to_choose_an_electric_radiator_fan/ I have concluded that I want a pull-through...

Outstanding reply. Thanks so very much.

I'm finishing up my P400-700R4-NP241 build to go into my M1028 and am considering replacing the fan & clutch with a separate thermostatically-operated radiator-mounted fan in order to save a couple horsepower during higher operating temperatures. Just wondering if anybody has ever calculated...