[oil pan 4]

I got my $50 CL generator up and running really good. Its an old coleman 1875 watt generator on an old horizontal briggs 5hp.
I need 2 settings, a fuel saver mode and a power mode.
The power mode runs a cold air intake, and sets the generator to 63Hz and runs up to 125v. The power mode runs air compressors or welders.
The fuel saver setting I turn the generator down to about 50Hz which produces a little over 100v that can be boosted up to 120v with a varrac, that will run most gadgets that put a light load on the machine, charge power inverter batteries, stuff like that.
I think a warm air intake might help some. The generator will be out side and I will most likely need to run economy mode in winter during unexpected power outages.
EGR will be useless with out a way to advance the timing.
Then in power mode when I have to fire up the welder.

I also want to add a nice up sweeping straight pipe exhaust that I can add a muffler to. The straight up exhaust will blow poisonous CO up and away from people and the house. I need to figure out the best length to make the pipe. 2 or 3 feet will be no problem. More of a safety and power mod, not so much an economy mod.