I have been experimenting with using the DuroMax 5500 for emergency charging for my 2013 Leaf S with QC. Looks like the best I can get is 14a at 240v on gas and 12a on Propane. Here is a link to a June 3 post. and a video of it running at 14a on Propane.
It seems that gas is producing more horsepower as expected. I think the generator is overrated in light of it's 7.5 hp engine. I only want to use it on propane and was thinking of pulling the head and removing about .030 to increase compression. I have all the equipment to modify as much as I want, mill, computerized flow bench, dyno etc. etc. (used to build racing engines for racing karts) trying to decide if raising the compression ratio a couple of points would be worth the effort. I would like to get 16a out of it, but can live with the 12a. I am using an OpenEVSE, is there a way to bump the current while it is charging? If so it might support a higher amperage. If I start at 16a it just bogs down and errors out on both propane and gas. I would appreciate anyones thoughts on the subject.