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Post by Reel Good on May 8, 2020 8:44:17 GMT -5
I have a 242CC with twin 150s and was wondering if someone has experience with mounting the GT51M Thru hull side scan transducer. I was going to mount it on the flat keel near the transom without the fairing block. My concern is that even though it is between the engines, that it may cause enough turbulence to cause the engines to ventilate. I already have ventilation problems accelerating out of the hole but can manage that with tilt and trim.
Any experience in this area is appreciated.
Thanks
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Post by fishnfool on May 8, 2020 9:07:32 GMT -5
Not with that ducer, but just had a B175M thru hull installed. Ive seen them mounted on the keel pad on other boats and I've seen them mounted just off center. My only concern with the keel location would be running aground and breaking it off, but I think it would be the cleanest location. Just dont mount it in front of your motor. Also consider where your bunks are located.
What does your electronics dealer suggest?
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Post by Reel Good on May 8, 2020 9:26:39 GMT -5
Thanks fishnfool. My boat came from the factory with the B75M which is the 600W version of your B175M. The thru-hull side scan ducer is big and protrudes 1.5" and is 9" long. I was going to buy the transom mount but it's side scan performance is severely limited by the engine shadows. I had one on my old 218CC and had to tilt the engine up to see on the port side.
I asked Garmin and Sailfish, both saying it was likely the best place but even Sailfish never installed this TH sidescan ducer so had no real world experience.
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Post by fishnfool on May 8, 2020 10:08:01 GMT -5
I have a GT52TM, it is installed near the keel. Seems to work okay for my needs unless I'm going to fast then I get prop wash disturbance but at idle speed does good. The 52 is a bit smaller than the 51 so it doesnt stick out very far.
Try contacting BOE Marine regarding install location, Jim and team are very helpful.
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Post by Reel Good on May 8, 2020 10:23:12 GMT -5
Thanks I will give BOE Marine a try.
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Post by fishnfool on May 8, 2020 12:01:17 GMT -5
Thanks I will give BOE Marine a try. Jim checks the electronics forum on band of boaters, he's one of the site owners too. You could try posting your question there. Olie is real helpful too, hes an installer as well. www.bandofboaters.com/forum/marine-electronics
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Post by Reel Good on May 8, 2020 15:17:30 GMT -5
Fishnfool,
I spoke to Jim and ordered the transducer. I will be checking out the bandofboaters forum as well.
Thanks again
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Post by fishnfool on May 8, 2020 19:30:58 GMT -5
Fishnfool, I spoke to Jim and ordered the transducer. I will be checking out the bandofboaters forum as well. Thanks again Curious what did Jim suggest?
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Post by abouttime2fish on May 8, 2020 19:33:03 GMT -5
I run a Simrad LSS-2 transom mount side/down vue transducer between my twin 150’s. No shadows from the motors at all.
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Post by jski59 on May 9, 2020 22:30:13 GMT -5
I ran a gt51 on the flat keel pad of my old 2360, worked great.
I had ventilation issues on that boat as well (4 blades helped) but the transducer didn’t cause any new problems.
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Post by Reel Good on May 10, 2020 5:28:06 GMT -5
Thanks jski59. Great to confirm it not only works well in that location but won't cause an issue with ventilation. Appreciate the tip on changing to a 4 blade as well.
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Post by abouttime2fish on May 10, 2020 6:26:59 GMT -5
Ventilation - I’ve got a 2360CC and experienced the same issues. I was looking at the lenco auto glide system for the trim tabs and was reading how aggressively the system applies them, and decided to try that. The short answer is you can overcome all the ventilation issues with the tabs. I am running the stock 3 blade stainless from 2006 that I’m not even sure they make anymore.
The longer answer. Go read the owners guide for lenco auto glide then try and replicate it. Think of the tabs as preventive not corrective. Once you are ventilating it’s too late to fix without a throttle adjustment too. So this is what I do. Any time I am slower than on plane, tabs are full down. You’ll find the deep V steers better this way too. Now you can run the throttles in that 1800-2500 rpm zone no issue. As she come up on plane, bring the tabs up all the way then level the boat. Slowing down is the reverse. As you slow below 2800ish hit the trim.
Now if you are going from a stop to WOT, or running on plane and just pull it to neutral, none of that trim work is necessary. Also any weight you can load as far forward as possible helps too. She doesn’t like to run bow high but she needs help keeping it down. Go play, I think you will like the results.
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Post by Reel Good on May 10, 2020 6:37:47 GMT -5
I did notice running the tabs down during acceleration did seem to help. I was actually tabbing down to push the bow down. I also noticed ventilation gets worst if turning while accelerating...so I go straight onto plane.
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Post by abouttime2fish on May 10, 2020 7:41:15 GMT -5
My theory only, but the issue is the hole in the water left by the hull. So yes turning would affect it too. If it really bothers you, there have been a couple folks put jack plates on with 6” of setback. Moving the motors back 6” seems to really do the trick. I think for the same money I’d put in that lenco auto glide or Bennett auto trim pro.
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Post by jski59 on May 10, 2020 16:09:46 GMT -5
Well, I’m one of those guys that did the jackplates...it helped, but the biggest improvement jump was four blade props and wedges.
Not sure if wedges are still needed on the newer boats, but they were a big help on my ‘06.
As far as the four blades, I felt like their additional grip let me control the bow better which helped the wetness in rough seas.
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