So, the rule of thumb is 10% of hp is WOT gph usage. I have an 83' Mercury 115hp with I'm told is the year they changed to different hp rating (at the prop rather than crank?) making my 115 more like a 140...meaning I "should" see about 14 gph at WOT.
With all that said, does anyone have a breakdown at various rpms what the gph "should" be.
I know, I know...there are a lot of factors: hull type, prop, wind, temp, weight, current...but just some crude numbers would be greatly appreciated...
WOT = 14 gph
4500 = 12?
4000 = 9?
3500 = 7?
3000 = 5.5?
Thanks
With all that said, does anyone have a breakdown at various rpms what the gph "should" be.
I know, I know...there are a lot of factors: hull type, prop, wind, temp, weight, current...but just some crude numbers would be greatly appreciated...
WOT = 14 gph
4500 = 12?
4000 = 9?
3500 = 7?
3000 = 5.5?
Thanks