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#1
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Does anyone have something that will tell me what the fuel consumption
expectations are for a Pro-line 211 walkaround with a 5.7L carbureted engine? It's listed in the Powerboat Guide, which I'm too cheap to buy just to get this question answered. I'm also too cheap to put a fuel meter on it. Actually, I'm so cheap I may not burn the electricity to turn this computer on to get an answer....but I'll love you if you try. Thanks! -- John H "All decisions are the result of binary thinking." |
#2
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Roughly 1-22 gph. There are too many variables: Alpha 1, Bravo 1,2, or
3, Volvo Penta, prop selection, load, fuel & water on board, sea conditions, etc. The most important variable is your speed. You can burn 1-2 gph at a crawl and about 20-22 at WOT. If you want to economize - and your post hints to that - you *should* buy a fuel meter. A boat running 2500 rpms at 21 knots can burn 6 gph with that engine. That same boat at 3500 rpms and 34 knots can burn around 12 gph - about double or half of the fuel economy. A fuel flow meter can help you find your sweet spot, or cruising speed, to get the best bang for your buck and pay off that meter in a short period of time. Here's a boat with a Volvo 5.7 that was tested... RPM MPH Knots GPH 650 3.7 3.2 0.9 1000 5.8 5.0 1.2 1500 8.1 7.0 3.4 2000 15.6 13.6 5.1 2500 24.4 21.2 6.0 3000 31.7 27.6 8.2 3500 39.6 34.4 11.8 4000 45.3 39.4 13.5 4500 49.9 43.3 17.2 4750 54.1 47.0 22.6 Dan John H wrote: Does anyone have something that will tell me what the fuel consumption expectations are for a Pro-line 211 walkaround with a 5.7L carbureted engine? It's listed in the Powerboat Guide, which I'm too cheap to buy just to get this question answered. I'm also too cheap to put a fuel meter on it. Actually, I'm so cheap I may not burn the electricity to turn this computer on to get an answer....but I'll love you if you try. Thanks! |
#3
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On Sat, 09 Apr 2005 21:34:42 GMT, Dan Krueger
wrote: Roughly 1-22 gph. There are too many variables: Alpha 1, Bravo 1,2, or 3, Volvo Penta, prop selection, load, fuel & water on board, sea conditions, etc. The most important variable is your speed. You can burn 1-2 gph at a crawl and about 20-22 at WOT. If you want to economize - and your post hints to that - you *should* buy a fuel meter. A boat running 2500 rpms at 21 knots can burn 6 gph with that engine. That same boat at 3500 rpms and 34 knots can burn around 12 gph - about double or half of the fuel economy. A fuel flow meter can help you find your sweet spot, or cruising speed, to get the best bang for your buck and pay off that meter in a short period of time. Here's a boat with a Volvo 5.7 that was tested... RPM MPH Knots GPH 650 3.7 3.2 0.9 1000 5.8 5.0 1.2 1500 8.1 7.0 3.4 2000 15.6 13.6 5.1 2500 24.4 21.2 6.0 3000 31.7 27.6 8.2 3500 39.6 34.4 11.8 4000 45.3 39.4 13.5 4500 49.9 43.3 17.2 4750 54.1 47.0 22.6 Dan Thanks Dan, I should have mentioned it has an Alpha I outdrive. It looks like trolling (8-900 rpm) will burn about 1 gph and cruising (usually about 3200 rpm) will burn about 10gph. Guess I better spend more time fishing and less time playing! -- John H "All decisions are the result of binary thinking." |
#4
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On average you will get between 2.5 and 3.0 miles per gallon. This assumes
you are running on plane and are running between 3000 and 4000 rpms. The lower the rpms the better the mileage. Everyone wants to quote gallons per hour at a certain rpm. How many hours do you run at the same rpm? Miles per gallon means so much more as you should know how far you have gone using either a chart or a gps. This will tell you exactly how far you can still go on a given amount of fuel. Of course that is my opinion. -- Tony my boats and cars at http://t.thomas.home.mchsi.com "John H" wrote in message ... Does anyone have something that will tell me what the fuel consumption expectations are for a Pro-line 211 walkaround with a 5.7L carbureted engine? It's listed in the Powerboat Guide, which I'm too cheap to buy just to get this question answered. I'm also too cheap to put a fuel meter on it. Actually, I'm so cheap I may not burn the electricity to turn this computer on to get an answer....but I'll love you if you try. Thanks! -- John H "All decisions are the result of binary thinking." |
#5
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On Sat, 09 Apr 2005 22:37:36 GMT, "tony thomas" wrote:
On average you will get between 2.5 and 3.0 miles per gallon. This assumes you are running on plane and are running between 3000 and 4000 rpms. The lower the rpms the better the mileage. Everyone wants to quote gallons per hour at a certain rpm. How many hours do you run at the same rpm? Miles per gallon means so much more as you should know how far you have gone using either a chart or a gps. This will tell you exactly how far you can still go on a given amount of fuel. Of course that is my opinion. Actually, Tony, gph is better in my case. When fishing, I am either trolling or going somewhere on plane and anchoring for a long time (or just drifting). If trolling, I might be on plane for a half hour and then troll at 1-3 mph for four or five hours (unless I'm lucky and limit out early!). If bottom fishing, I may be on plane for an hour getting to the site, and then anchoring for four or five hours. So I really need to know my planing consumption and my trolling consumption. That way, if I'm splitting the gas costs with a couple other folks it'll be fair all around. -- John H "All decisions are the result of binary thinking." |
#6
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Agreed for that situation. But would it not be more fair to start out full
of fuel and then top off when you get back. That way you know exactly how much you burned. -- Tony my boats and cars at http://t.thomas.home.mchsi.com "John H" wrote in message ... On Sat, 09 Apr 2005 22:37:36 GMT, "tony thomas" wrote: On average you will get between 2.5 and 3.0 miles per gallon. This assumes you are running on plane and are running between 3000 and 4000 rpms. The lower the rpms the better the mileage. Everyone wants to quote gallons per hour at a certain rpm. How many hours do you run at the same rpm? Miles per gallon means so much more as you should know how far you have gone using either a chart or a gps. This will tell you exactly how far you can still go on a given amount of fuel. Of course that is my opinion. Actually, Tony, gph is better in my case. When fishing, I am either trolling or going somewhere on plane and anchoring for a long time (or just drifting). If trolling, I might be on plane for a half hour and then troll at 1-3 mph for four or five hours (unless I'm lucky and limit out early!). If bottom fishing, I may be on plane for an hour getting to the site, and then anchoring for four or five hours. So I really need to know my planing consumption and my trolling consumption. That way, if I'm splitting the gas costs with a couple other folks it'll be fair all around. -- John H "All decisions are the result of binary thinking." |
#7
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On Sun, 10 Apr 2005 02:29:07 GMT, "tony thomas" wrote:
Agreed for that situation. But would it not be more fair to start out full of fuel and then top off when you get back. That way you know exactly how much you burned. That would be more accurate, if I wanted to take the time to do so every time I go out. But, I don't. -- John H "All decisions are the result of binary thinking." |
#8
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If your boat holds 120 gallons of fuel and you plan on spending a few
hours cruising or making a quick run to the reef and back, it doesn't make sense to fill your tank every time you go out. That full 700# will cost you more to carry around. I try to start with about twice as much gas as I think I will use. If I'm trailering, I'll fill it up since the gas on shore is so much cheaper than the fuel docks. Dan John H wrote: On Sun, 10 Apr 2005 02:29:07 GMT, "tony thomas" wrote: Agreed for that situation. But would it not be more fair to start out full of fuel and then top off when you get back. That way you know exactly how much you burned. That would be more accurate, if I wanted to take the time to do so every time I go out. But, I don't. |
#9
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I second your opinion! Mpg is much more important than gph.
Taking the chart one step further--adding the conversion for mpg we have: RPM MPH Knots GPH MPG 650 3.7 3.2 0.9 4.1 1000 5.8 5.0 1.2 4.8 1500 8.1 7.0 3.4 2.3 2000 15.6 13.6 5.1 3.1 2500 24.4 21.2 6.0 4.1 3000 31.7 27.6 8.2 3.9 3500 39.6 34.4 11.8 3.4 4000 45.3 39.4 13.5 3.4 4500 49.9 43.3 17.2 2.9 4750 54.1 47.0 22.6 2.4 I wish I got such great "economy"! I average only about 2mpg with my 200hp merc. I usually run 3/4 throttle (35-40mph) for 9miles to the pass then troll or run as fast as I can safely and comfortably go to a bottom fishing spot. My boat has twin 18gal and a third 17gal tank and consistantly, with a mix of trolling and crusing gets between 1.9 to 2.1 mpg. I keep a log with fishing, weather info and how much gas I put in. Maybe to determine the overall running time on the engine an hour meter is good but I could care less about how many gallons it takes me to move for one hour. Once I've commited to go fishing, I just want to be sure I have plenty of gas to get back! In the example it's obvious that at 1500 rpm the boat's trying to get on plane and at 2500rpm it's on plane and that WFO is inefficient (and not too good on the engine life either). Notice that, once it's on plane at 24.4mph it's as efficient as creeping along at 3.7mph. But within the parameters of 3.7mph to 45.3 mph (avoiding the 1500 rpm), there's not much difference. And, in the example, is one really going to run 5.8 mph for 30 miles just for economy? If I run any distance at 3.7 or 5.8 mph it's because I trolling--not trying to save gas. If I really wanted to save gas I guess I'd get a sailboat! Let's go fish! LD "tony thomas" wrote in message news:QOY5e.1364$xL4.780@attbi_s72... On average you will get between 2.5 and 3.0 miles per gallon. This assumes you are running on plane and are running between 3000 and 4000 rpms. The lower the rpms the better the mileage. Everyone wants to quote gallons per hour at a certain rpm. How many hours do you run at the same rpm? Miles per gallon means so much more as you should know how far you have gone using either a chart or a gps. This will tell you exactly how far you can still go on a given amount of fuel. Of course that is my opinion. -- Tony my boats and cars at http://t.thomas.home.mchsi.com "John H" wrote in message ... Does anyone have something that will tell me what the fuel consumption expectations are for a Pro-line 211 walkaround with a 5.7L carbureted engine? It's listed in the Powerboat Guide, which I'm too cheap to buy just to get this question answered. I'm also too cheap to put a fuel meter on it. Actually, I'm so cheap I may not burn the electricity to turn this computer on to get an answer....but I'll love you if you try. Thanks! -- John H "All decisions are the result of binary thinking." |
#10
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On Sat, 09 Apr 2005 16:58:45 -0400, John H
wrote: Does anyone have something that will tell me what the fuel consumption expectations are for a Pro-line 211 walkaround with a 5.7L carbureted engine? I owned 2 Pro-Line's. Sold the off for a hefty profit. -- Bush and the NeoConvicts who control him are destroying the once-great United States. |
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