wish id have seen this post before answering on another site lol. unless you have higher than normal compression, running 93 octane is not letting you get full power from your motor. they are designed to run on 87, and the 93 is harder to ignite. combine this to the 36:1 ratio, you are seriously...
I run a 1760 xpress with a 115/80 omc. I started with a 90/65 and it turned 5200 rpm. Swapped powerheads, same impeller bumped up to 5450-5500 rpm and gained 2 mph. The proper liner and 80 hp impeller brought the rpm down to 5300.
speed with the 90/65 was 29 mph.
speed with the 115/80 and...
Removed from my old boat and used on my new boat temporarily until i got everything where i wanted it and could measure out for a longer cable. Works fine, no binds.
Free, but not going to ship it. Its well greased and i dont want to deal with getting it in a box.
Never had an issue running 36 volts to a marinco plug fighting heavy currents all day. Do you have an inline breaker? Possibly those 8 gauge cables not carrying enough juice for the length of the run, and getting hot enough at the plug joint to melt?
It made a 4 mph difference on my old grizzly. Major improvement on hole shot too.
And this was with a 49 cu inch short shaft 75, vs the torqueyer 56 cu in 70.
Id be looking for a 70 over the 60. Same motor weight, and easier to find.
my ghetto way of checking clearance... pull out the spark plugs. shim the impeller. set the liner up. put 2 bolts in. have someone turn the flywheel by hand. shim it down as much as i can without rubbing.
i HATE the studs that came with mine. took them out and replaced with stainless bolts. Everytime I hit something and then later needed to remove the boot, the studs were bent and made getting the boot off a chore.
I take mine as seriously as hitting it with the grinder, then removing the burr on the opposite side. Takes me longer to remove the boot than sharpen the impeller
didnt you relocated batteries from when you first bought it?
and i have a spare keeper washer. its double the thickness of the stock ones, so they wont break.