Time to test the Whipple!!
06-06-2011 | 10:36 PM
#24
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From: Texoma
Boat ran 83 on GPS at 5500 RPM. The lake sucked on memorial day weekend, we had wind and waves like I have never seen before. Me and my wife took it out sunday morning early, It was humid as hell and about 85 degrees. We also had 2 - 100% full tanks of fuel that we put in before we put the boat in the water to stay on the lift.. (which I regret, cause it obviously slowed the boat down). Also left the bow cover off, which usually helps my boat 2-3 mph. We practically idled through 4 footers, under a railroad bridge, and opened it up on the back side of the RR dam. It was close to topped out before we ran out of room. I had to shut it down, but it maybe had one more mph in it?? IDK??
The weather has FINALLY straightened up here and this weekend is time to test and tune. (Relax and Drink Beer afterwards) Really excited to get some testing in!! It was the worst thing ever to set at our slip with friends, stare at the boat on the lift, and talk about how fast it was gonna be... LOL
How much gas do these things hold? How much does Gas weigh? I will get some good numbers this weekend!!!
Derek
The weather has FINALLY straightened up here and this weekend is time to test and tune. (Relax and Drink Beer afterwards) Really excited to get some testing in!! It was the worst thing ever to set at our slip with friends, stare at the boat on the lift, and talk about how fast it was gonna be... LOL
How much gas do these things hold? How much does Gas weigh? I will get some good numbers this weekend!!!
Derek
06-07-2011 | 09:08 AM
#25
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Joined: Nov 2002
Posts: 2,621
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From: Nashvegas, TN
Hi Derek,
Gas weighs 6 pounds per gallon. Regarding full tanks, on my boat when the gauge reads full, I can still get another another 5 or so gallons of gas in them. The factory may be calibrating the senders this way to keep gas from overflowing out of the
vents, which is a violation if it happens on the water.
The tanks on my boat (and probably yours) are 42 gallon IMCOs. If you are truly "full", that is 504 pounds of gas.
Not only does weight affect performance, by lowering your HP to weight ratio, placement of weight (fore and aft, port and starboard) in a hull makes a big difference too.
Weight carried in front of the step, or ahead of the C/G, slows most boats down by making them run with more wetted surface, which induces more surface friction. Weight carried behind the C/G does slow the boat down some (because you can't fool physics), but nearly as bad.
Sounds like you had some tough water conditions and a full load, but your numbers are a lot better. I think with a lighter load, better conditions, and some seat time, you'll be fine. Don't underestimate the seat time. The last 2-3 mph of most high performance boats are attained by careful attention to, and use of trim/throttle/steering/tabs. BTW Derek I hate to sound like a buzz kill, but it sounds like you boat with your family and friends a lot (as do most of us). Please wear your life jackets and kill switch while running at speed. This is a lot of fun, but you can get hurt doing it. We don't want that to happen to anybody, particularly a Nordic Brother.
Regards,
Steve
Gas weighs 6 pounds per gallon. Regarding full tanks, on my boat when the gauge reads full, I can still get another another 5 or so gallons of gas in them. The factory may be calibrating the senders this way to keep gas from overflowing out of the
vents, which is a violation if it happens on the water.
The tanks on my boat (and probably yours) are 42 gallon IMCOs. If you are truly "full", that is 504 pounds of gas.
Not only does weight affect performance, by lowering your HP to weight ratio, placement of weight (fore and aft, port and starboard) in a hull makes a big difference too.
Weight carried in front of the step, or ahead of the C/G, slows most boats down by making them run with more wetted surface, which induces more surface friction. Weight carried behind the C/G does slow the boat down some (because you can't fool physics), but nearly as bad.
Sounds like you had some tough water conditions and a full load, but your numbers are a lot better. I think with a lighter load, better conditions, and some seat time, you'll be fine. Don't underestimate the seat time. The last 2-3 mph of most high performance boats are attained by careful attention to, and use of trim/throttle/steering/tabs. BTW Derek I hate to sound like a buzz kill, but it sounds like you boat with your family and friends a lot (as do most of us). Please wear your life jackets and kill switch while running at speed. This is a lot of fun, but you can get hurt doing it. We don't want that to happen to anybody, particularly a Nordic Brother.
Regards,
Steve
Last edited by Steve Zuckerman; 06-07-2011 at 07:03 PM.
06-08-2011 | 01:22 PM
#26
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Joined: May 2009
Posts: 235
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From: Texoma
Hi Derek,
Gas weighs 6 pounds per gallon. Regarding full tanks, on my boat when the gauge reads full, I can still get another another 5 or so gallons of gas in them. The factory may be calibrating the senders this way to keep gas from overflowing out of the
vents, which is a violation if it happens on the water.
The tanks on my boat (and probably yours) are 42 gallon IMCOs. If you are truly "full", that is 504 pounds of gas.
Not only does weight affect performance, by lowering your HP to weight ratio, placement of weight (fore and aft, port and starboard) in a hull makes a big difference too.
Weight carried in front of the step, or ahead of the C/G, slows most boats down by making them run with more wetted surface, which induces more surface friction. Weight carried behind the C/G does slow the boat down some (because you can't fool physics), but nearly as bad.
Sounds like you had some tough water conditions and a full load, but your numbers are a lot better. I think with a lighter load, better conditions, and some seat time, you'll be fine. Don't underestimate the seat time. The last 2-3 mph of most high performance boats are attained by careful attention to, and use of trim/throttle/steering/tabs. BTW Derek I hate to sound like a buzz kill, but it sounds like you boat with your family and friends a lot (as do most of us). Please wear your life jackets and kill switch while running at speed. This is a lot of fun, but you can get hurt doing it. We don't want that to happen to anybody, particularly a Nordic Brother.
Regards,
Steve
Gas weighs 6 pounds per gallon. Regarding full tanks, on my boat when the gauge reads full, I can still get another another 5 or so gallons of gas in them. The factory may be calibrating the senders this way to keep gas from overflowing out of the
vents, which is a violation if it happens on the water.
The tanks on my boat (and probably yours) are 42 gallon IMCOs. If you are truly "full", that is 504 pounds of gas.
Not only does weight affect performance, by lowering your HP to weight ratio, placement of weight (fore and aft, port and starboard) in a hull makes a big difference too.
Weight carried in front of the step, or ahead of the C/G, slows most boats down by making them run with more wetted surface, which induces more surface friction. Weight carried behind the C/G does slow the boat down some (because you can't fool physics), but nearly as bad.
Sounds like you had some tough water conditions and a full load, but your numbers are a lot better. I think with a lighter load, better conditions, and some seat time, you'll be fine. Don't underestimate the seat time. The last 2-3 mph of most high performance boats are attained by careful attention to, and use of trim/throttle/steering/tabs. BTW Derek I hate to sound like a buzz kill, but it sounds like you boat with your family and friends a lot (as do most of us). Please wear your life jackets and kill switch while running at speed. This is a lot of fun, but you can get hurt doing it. We don't want that to happen to anybody, particularly a Nordic Brother.
Regards,
Steve
Derek
