Search results

WOT is 4400 rpm and speed is 30 MPH per GPS.

I'm using a fuel flow meter as well. Just seemed that my rpm's are running high for the speed I'm going.

what speed does that put you at. Really wondering why I have to run such a high rpm to go 25 mph.

relentless1996 Join Date: Aug 2010 Location: seal beach ca Boat: sea ray Details: 370 sundancer Engine(s): 454 merc gas Posts: 5 Re: why is my gas mileage so bad I have a 370 sundancer with 454's We cruise to Catalina island off LA Cal 1.5 hours each way at 3400 rpm I burn 18 GPH your RPM...

I guess the other question is why am I turning 4k rpm's to go 25 mph. Everthing I have been reading seems to say I should be under 3k rpm's with fuel burn around 15 gph per motor. Hull is clean. plugs, caps and rotors this weekend. same gph before and after. Could someone in the past have...

I have been reading what others are getting and mine seems to be way off. I have a 1986 sea ray 340 exoress cruiser with twin 454 mercruisers. At 25 mph I am turning almost 4000k rpms and blowing through a litlle over 50 gph (26 gph per motor). I just bought this boat a few months back and just...