I know I shouldn't ask!
10-28-2005, 02:03 PM
#11
JC Performance Engines
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Re: I know I shouldn't ask!
Originally Posted by Dave M
Someone I know with a 45 Sonic with trip 500's told me he is burning 50 GPH at cruise. 
10-28-2005, 02:12 PM
#12
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Re: I know I shouldn't ask!
Originally Posted by dockrocker
I've had similar bad thoughts about the Mack Daddy Formula 419 - just the *bling* factor might be worth it!
But.... unless you can afford to wipe your bottom with $100 bills....
But.... unless you can afford to wipe your bottom with $100 bills....
What is the optimum cruising RPM of the HP500? Whatever that RPM is, approx what speed would a triple engine 419 travel?
Last edited by formula1; 10-28-2005 at 02:18 PM.
10-28-2005, 02:13 PM
#13
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Re: I know I shouldn't ask!
Originally Posted by East Coast B
Dock Holiday, what speeds are you running at those rpm's? Would like to to a mpg equation...... I'd expect to see 1mpg at best with twin 500's just going by the numbers they post in the magazines. And with trips, I would think you would be under 1mpg....
So if you could post the speeds at your rpms, would appreciate it.. Have any numbers at higher rpms?
So if you could post the speeds at your rpms, would appreciate it.. Have any numbers at higher rpms?
50 divided by 48 = 1.042 Mile Per Gallon
5000 RPM = 70 MPH GPS 44 x 2 = 88 Gallons
70 divided by 88 = .795 Miles Per Gallon
By boat is a true deep vee. I would guess that the stepped hull guys who are running faster at the same RPM's would be more efficient?
Hope this helps.
Dock
