The Stovebolt Site Forums The Shop Area The Electrical Bay watts on deluxe heater blower and w/s wipers

Yes Leitmotif,
I have front clip off the truck and just started ordering parts for the motor its a complete rebuild. As I was removing the wiring I noticed the majority of the wiring was 20 gauage, a small fuseblock, no fusible links. Since I am redoing everything I decided to do the wiring myself. I bought it out of a field and it had not ran in about 20 years. I work with 460, 240,120, & 24 v circuits ac. Now I am getting proficient with 12v dc. I have no battery yet but since I am taking it down to bare metal I thought it would be a perfect time to upgrade the wiring.

The thing I was hoping for was to get an what the factory watts were and not estimate too high. I could take the12 volts times 9 amps approach to get the max running load amps would be but I know its not accurate I believe gm would not cut it that close or there would be a lot more blown fuses. Since its a motor driven circuit and the start up amps should be different than running amps in theory it would throw my running load calculation off. I know I will not be running everything at once but just wanted an idea.

I forgot to mention I was adding cooling fans to the radiator plus adding relays for those fans and relays for the headlights. I want to keep the majority of the hi amps of what I can outside the cab of at least what I can. Its crazy seeing all the power ran off the ignition and headlight control.

Lastly I am using the 12 volt and watts for the amps to size the wire not the 13 or 14 volt so that should give me my cushion plus I plan to use min of 14 garage wire and bigger since I have a surplus of it.

I guess if there is no info on the factory blower and w/s wipers I will just yank them out and do a bench test. I was hoping someone here would know or where to find it. Those where the only two I did not have.

If anyone one else has any input I would love to hear. Thanks to all.