I am planning a trip in about 3 weeks and need to get my Gallons Per Hour Figures in order to plan my stops.

1990 Mach 1 Endeavor 29 '
Twin STOCK 454's
Mirage Stainless Props


I need Estimates at the following RPM's

2500

2900

3200

3500

The trip I am thinking of taking is around 450 Miles.. So it's important to figure this out.

Please Help.

fightclub



For those not familiar with the style of boat I attached a pic.

My guess is 1mi=1gal at 2500-3000 rpms. 1.25-1.5mi=1gal at 3500 rpms. Cruise at 45mph...eat 40-45 gallons per hour total. You may get better mileage, this is safe.

Thanks...

I can now plan my stops accordingly.

fightclub

Assuming 330's, you'd be around 33 gallons per hour per engine WFO.

where is the trip at?

START Lake Erie... Up into Lake St Clair - Pt Huron to Lake Huron.... Lake Huron to the Mackinaw Bridge. Bridge to Little Traverse Bay Lake Michigan.


ALL IN ONE DAY

Kidding over two days.

Rough estimate of approx 32 gallons per hour cruise...

If ypour cutting it close going from Mackinaw to Traverse City, you can stop at Northport at the tip of the Lenlenau penninsula. Great place to overnight if you want Mayberry on the water.

A bit different.. but I have to share...
I ran in a Top Gun today that had 675 Chiefs. The flow meters were saying 50 each at 4000rpm.

I think that resembles a garden hose...

330's should be around 26 gph each at WOT.
Maybe around 17gph each at 3600.

Reckless sounds closest so far.