Speed calculator Guru's needed
#1
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Speed calculator Guru's needed
Expert opinions needed on theoretical speed. Besides if it prevents arguing on the Kramer thread this is good!
I went to http://www.go-fast.com/boat_speed_predictions.htm and put in my information and got 72 MPH.
I need any other thoughts from the experts around here with these parameters:
Boat:
2000 Cigarette Tiger Non Stepped hull 9800#
Engines according to Dyno Sheet:
601ft @3700 rpm
547 HP @5400 rpm
Drives:
#6's Dry-Sump (from information I got I figured losing 30 HP/each to turn these monsters)
Transmission:
I put 10hp each to turn tranny
This gives me 507 HP to the prop.
I went to http://www.go-fast.com/boat_speed_predictions.htm and put in my information and got 72 MPH.
I need any other thoughts from the experts around here with these parameters:
Boat:
2000 Cigarette Tiger Non Stepped hull 9800#
Engines according to Dyno Sheet:
601ft @3700 rpm
547 HP @5400 rpm
Drives:
#6's Dry-Sump (from information I got I figured losing 30 HP/each to turn these monsters)
Transmission:
I put 10hp each to turn tranny
This gives me 507 HP to the prop.
#9
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Originally posted by outer42
HEY CORD COORECT IF I'M WRONG,YOU HAVE THE WEIGHT AT 4000 WHICH IT IS 9800LBS AND ONLY HP FOR ONE MOTOR.
HEY CORD COORECT IF I'M WRONG,YOU HAVE THE WEIGHT AT 4000 WHICH IT IS 9800LBS AND ONLY HP FOR ONE MOTOR.
That was for my boat. Guess I was saying that if the right info was put in, that the calculator sees to be generating a accurate speed.
#10
Offshoreonly Advertiser
Offshoreonly Advertiser
It is most accurate once you calculate the exact constant for your particular set up. The constant can change though, a set of labbed props may be worth a couple of MPH, but obviously the HP or weight did not change.
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Marc
www.mercruiserparts.com
www.go-fast.com
www.bammarine.com
www.cyborgtransmissions.com
It's not alive -www.BoatStuffExpress.com - temporarily retired