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Trolling with Twin Outboards

Old 09-30-2019, 09:35 AM
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Default Trolling with Twin Outboards

When trolling for tuna/dolphin I typically shut one down to save fuel and hours on the motors, rotate the motor that is up. I see others keep both up all day. What are the pros and cons of each method?
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Old 09-30-2019, 09:49 AM
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How much gas are you really saving? Depending on what you are pulling (dredges), that can be a lot of strain on the 1 engine too. Plus - I personally just feel better if both my engines stay running 100 miles offshore.
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Old 09-30-2019, 11:20 AM
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I troll on 1 as well. Gives me a cleaner wake as well as 1/2 the hours. I have over 2,000 hrs on my 150 HPDI’s
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Old 09-30-2019, 03:32 PM
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I used to troll on one (alternating) when I had my Stamas 310 Express... Half the hours and fuel burn was significantly better on one engine at 8 knots than on two.
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Old 09-30-2019, 03:33 PM
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Originally Posted by seaox23 View Post
How much gas are you really saving? Depending on what you are pulling (dredges), that can be a lot of strain on the 1 engine too. Plus - I personally just feel better if both my engines stay running 100 miles offshore.
'Strain" pulling dredges..... ROTFLMAO.
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Old 09-30-2019, 04:13 PM
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Originally Posted by seaox23 View Post
I personally just feel better if both my engines stay running 100 miles offshore.
I can see who one might feel this way, I have no concerns whatsoever that a motor wont start. I always bring the idle motor up before shutting the other down. There is a little more sawing on the wheel with only one running but I usually let my AP take care of that.
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Old 09-30-2019, 04:45 PM
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I've done it both ways. At 7.5 knots, I found fuel savings to be negligible, as I needed to significantly increase the RPM's on the single motor to maintain my thru-water speed, especially heading into it. Hours on each motor were cut in half obviously, but those hours were no longer "loafing" hours, but "straining" hours, so each motor was working harder when in use. The noise of two synced motors turning low RPM's was pleasant and the fish liked it. The noise from one straining motor was annoying.

If I had to choose when to shut one down, I'd say for those long pleasant downhill runs.
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Old 09-30-2019, 08:20 PM
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If you don't have auto pilot you are doing a lot of wheeling with one motor and it sucks how much you saving on fuel not worth strugling
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Old 10-01-2019, 08:42 AM
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Whatever works.
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Old 10-01-2019, 06:31 PM
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I troll both synced.
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Old 10-02-2019, 06:31 AM
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Originally Posted by BigtTunaDaddy View Post
I troll both synced.
Because its easier to steer, raises more fish, provides piece of mind, why?

I can troll 7 knots with one motor at about 1400 rpm, I dont see this is any strain at all. The only reason at this point I would consider both synced is if I was convinced it raised more fish.
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Old 10-02-2019, 06:31 PM
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I have started trolling on 1, I leave the other down, Autopilot does the steering. Does it save fuel, yes. And by a fair percentage. but trolling does not burn a lot of fuel, so while I have 50% more efficient, it probably is just a couple of gallons a day. It does save on hours and service etc.
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Old 10-02-2019, 08:02 PM
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I have started shutting one down on the Onslow Bay. Slow trolling 2-3kts it saves hours, but nothing in fuel. Gulfstream at 7.5kts I save about 8-10 gallons in a day. That's an extra $35-40 at the end of the day. If I am fast trolling at 9+ I run both.
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Old 10-02-2019, 10:17 PM
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I tried shutting one down and did not like the constant steering (I don't have autopilot) I also raised more fish with both running
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Old 10-03-2019, 04:25 AM
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Both running synced and I have to go a touch faster than the norm trolling speed. Do it cause that’s how my boat raises fish the best.
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Old 10-03-2019, 04:47 AM
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Originally Posted by tango2echo View Post
I have started shutting one down on the Onslow Bay. Slow trolling 2-3kts it saves hours, but nothing in fuel. Gulfstream at 7.5kts I save about 8-10 gallons in a day. That's an extra $35-40 at the end of the day. If I am fast trolling at 9+ I run both.
English please?
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Old 10-04-2019, 08:25 AM
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I troll on one but leave both down. Steers fine.
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Old 10-04-2019, 12:10 PM
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I have a big single now but when I had twins I trolled with only 1 & alternated from trip to trip ya figure @ 10 hours of trolling per trip 10 to 15 offshore trips a season that adds up to a lot of hours saved over the course of several years
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Old 10-04-2019, 12:22 PM
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I use both for anything above 5 knots. I don't like how hard a single has to work above that. I am usually at 1100 to 1500 rpm trolling on both. With just a single I'm up over 2 grand. I haven't messed around trolling on one enough to notice if it's better at raising fish or not.
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Old 10-04-2019, 05:52 PM
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I troll on both for what it’s worth. Still learning though but may try it to conserve fuel
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