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Originally Posted by NASCAT
(Post 4670220)
Yes that's what I've been told, same principal as the trailer torsion axles.
Your question / concern is valid. Here's my theory; a NT-390 on a trailer w/ 1/2 tank of fuel weighs approx 16,000lbs. GMC advertises their Class V hitch towing capacity @ 20,000lbs & suggests a 10-15% tongue weight. I've never been able to achieve 10% tongue weight w/ any boat I've owned including my 34' Nor-Tech. Lets assume I can, that would be approx 1600lbs on the ball on a floating torsion hitch so I'm not only under the receivers suggested max tongue rating of 2000lbs but I also have a hitch that is absorbing the load and dampening the leverage you have raised concern about. The GenY hitch has quite a long 2.5" x 2.5" solid shank w/ 2 hitch pin options, I believe it's in as far as it will go in the pics but I'm not 100% sure which hole, I just installed it and pinned it for the pics. DISCLAIMER: I'm not a Mechanical Engineer, so this is just my hypothesis :cool-smiley-027: |
https://cimg1.ibsrv.net/gimg/www.off...cf68c1d581.jpg
https://cimg2.ibsrv.net/gimg/www.off...8e91ea8a91.jpg If you purchase a GenY Torsion hitch, you'll gain 75lbs tongue weight instantly assuming your current ball mount weighs about 25lbs. I considered the Shocker Hitch too but it's only rated up to 16k which is marginal based on my package so in order to get 20k capacity I was opting for a pintle mount coupler design. Unfortunately the airbag then interferes w/ the lowering of the tailgate so it was a no go (unless you have a lifted truck or drop hitch). The Shocker Hitch has the airbag below the receiver so no issue w/ it. |
I think I like the torsion hitch better. Always been a fan of Torflex axles so may as well have the matching set.
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Definitely a cleaner package but weighs quite a bit more as is it quite a bit more costly than the Shocker.
I had a concern about an air bag failure and or vandalism / sabotage. Definitely would be screwed although I'm told an air bag can be replaced in the field fairly easily. CashBar tows his 32 Skater w/ a Shocker and has been really pleased w/ it. |
https://cimg0.ibsrv.net/gimg/www.off...d501e490b4.jpg
https://cimg9.ibsrv.net/gimg/www.off...7e2c1bcf79.jpg https://cimg7.ibsrv.net/gimg/www.off...78eefc98d4.jpg https://cimg8.ibsrv.net/gimg/www.off...2f091d3062.jpg https://cimg1.ibsrv.net/gimg/www.off...6a4d432af6.jpg https://cimg5.ibsrv.net/gimg/www.off...f0512e9d9b.jpg A few Nor-Tech progress pics courtesy SportBoats Marine |
1 Attachment(s)
Hitch tightener...
NASCAT, I highly advice investing in one of these for your hitch setup too: Attachment 576247 I've tried a slew of hitch tightener devices over the years, and this one is the best one I've come across. I've turned several other folks onto them as well, as I actually have a couple of them. Eventually the square bolt turns into a U-bolt, and you have to replace. |
Originally Posted by NASCAT
(Post 4670269)
https://cimg0.ibsrv.net/gimg/www.off...d501e490b4.jpg
https://cimg9.ibsrv.net/gimg/www.off...7e2c1bcf79.jpg https://cimg7.ibsrv.net/gimg/www.off...78eefc98d4.jpg https://cimg8.ibsrv.net/gimg/www.off...2f091d3062.jpg https://cimg1.ibsrv.net/gimg/www.off...6a4d432af6.jpg https://cimg5.ibsrv.net/gimg/www.off...f0512e9d9b.jpg A few Nor-Tech progress pics courtesy SportBoats Marine Michael, did you ever weigh one of your 340’s on the trailer? passing through a weigh station is on my list of to do’s. Need to get the permit stuff in place for a keys trip (they are strict in Monroe Cnty) The most impressive part of your post is that your dealer sent you pics of your build :) |
Originally Posted by Sydwayz
(Post 4670276)
Hitch tightener...
NASCAT, I highly advice investing in one of these for your hitch setup too: Attachment 576247 I've tried a slew of hitch tightener devices over the years, and this one is the best one I've come across. I've turned several other folks onto them as well, as I actually have a couple of them. Eventually the square bolt turns into a U-bolt, and you have to replace. Mine is not pictured but I did purchase one b/c I get tired of hearing the clunking around unloaded over bumps, coming to stops and taking off from stops. |
Originally Posted by JaxBoiler
(Post 4670283)
Michael, did you ever weigh one of your 340’s on the trailer? passing through a weigh station is on my list of to do’s. Need to get the permit stuff in place for a keys trip (they are strict in Monroe Cnty) The most impressive part of your post is that your dealer sent you pics of your build :) John Kray & Sportboats are top notch, he never compalins about taking pics and often sends me them on his own since he's at NT about weekly. With regard to boat / trailer weights see attached 2 diff NT 340's both on Evolution Trailers w/ 1/2 tank of fuel, weight of the trailer w/o boat, weight including my then 2014 Chevy Silverado 3500 (not sure how much fuel was in truck but I believe FULL since that would have been worse case scenario) The weight tickets dated 2016 would be a slightly heavier 340 (different options) & slightly heavier trailer (dual spare wheels and tires + a toolbox) Whats sad is I can't find one NT 390 owner w/ a weight ticket, nor could the factory provide me w/ any combined boat trailer weights for a triple engine 390. I was told 15,750 w/ 175 gals fuel by an owner thru a post on FB but thats it. https://cimg4.ibsrv.net/gimg/www.off...9f737d2971.jpg https://cimg4.ibsrv.net/gimg/www.off...8d0b47cbcf.jpg https://cimg5.ibsrv.net/gimg/www.off...2776ee61d2.jpg |
So if you add the extra weight for the larger trailer and larger boat, are you going to be over 26,000 lbs?
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Great info as always NasCat. They need to pay you a consulting fee from the factory. I think I’ve asked more questions and received more great answers from you than Nor-Tech and Evolution combined. |
Originally Posted by WARPARTY36
(Post 4670326)
So if you add the extra weight for the larger trailer and larger boat, are you going to be over 26,000 lbs?
If you take the lighter of the 2 boat trailer combos (14,120) & subtract from the 390 weight of 15,750 I was given it's a diff of 1630 lbs. Add 1630 to my GVWR of 23,120 for the the 340 & dually & it totals 24,750 I always weigh the boat full of water & 1/2 fuel so those are things I could adjust in order to lower my GVWR when taking a road trip. |
Originally Posted by JaxBoiler
(Post 4670330)
Great info as always NasCat. They need to pay you a consulting fee from the factory. I think I’ve asked more questions and received more great answers from you than Nor-Tech and Evolution combined. |
Originally Posted by JaxBoiler
(Post 4670330)
Great info as always NasCat. They need to pay you a consulting fee from the factory. I think I’ve asked more questions and received more great answers from you than Nor-Tech and Evolution combined. |
Originally Posted by NASCAT
(Post 4670333)
I appreciate the kind words, lets just say I'm a pay it forward guy who is slightly detail oriented. :party-smiley-004:
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Originally Posted by Double Rigged
(Post 4670361)
Yes you are and you are not alone! 😂 |
https://cimg7.ibsrv.net/gimg/www.off...ad52bb00b2.jpg
https://cimg8.ibsrv.net/gimg/www.off...8dc3d38160.jpg https://cimg9.ibsrv.net/gimg/www.off...131f05734f.jpg https://cimg1.ibsrv.net/gimg/www.off...484d8ccbed.jpg Rigging completes this week then off to paint. Thank you Matt, TJ & Paul for the 1 on 1 time you spent w/ me today to review the remainder of my build. Time well spent IMO. |
Looks awesome!!! I'll be down there in a few days to start my build process. Maybe I'll get to see it up close! Sweet color combo too!
I'm leaning towards matting (satin finish) the under portion of the Top. My concern is how the glossy tubing will blend with the matte finish. Also is that FLIR or thermal? |
I selected the matte or black satin finish for both the underside of my top as well as the powder coating. It’s not a perfect match but neither are shiny. I’d say the underside of the top (same as dash top) are closer to a flat black finish. Yes thats a Flir mounted upsidedown under the top. Does not interfere w/ my line of sight at all. I think it looks cleaner. Boat will most likely be back out on the shop floor for upholstery & electronics install. If if you look at my Avatar that’s the actual paint scheme. What you see pictured is the black gel Hull w/ a white gel deck. If you opt for a black bottom the entire hull is shot in black. |
Very nice, that's the location I intended to place mine too.
How many iterations of the design did you go through? |
I typically provide a pic or 2 of a scheme or stripe layout I like or have seen on another boat. We just evolve from there. |
On my previous build I opted for a carbon panel in place of the forward facing tinted lexan for several reasons;
1- way more durable and resists scratching 2- cuts the heat in the cabin down tremendously while the starboard side light and berth port holes allow plenty of light in. 3- cool factor, I think the high gloss carbon looks way better than the lexan. https://cimg6.ibsrv.net/gimg/www.off...dae89a3bd3.jpg https://cimg5.ibsrv.net/gimg/www.off...13d2428a13.jpg https://cimg4.ibsrv.net/gimg/www.off...f85f09c151.jpg Matt Lamb from Nor-Tech sent me a few progress pics today. |
Carbon fiber looks great. You probably are starting another new trend.
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From my recent visit and the pics that were sent to me it appears that Nor-Tech completely rigged and upfitted my boat including firing off of the engines and running through the electronics prior to paint.
Paul has the boat now & I expect to see it in color by the end of the week. That just eaves the installation of the rubrail, some detailing and clean up in order to complete.https://cimg8.ibsrv.net/gimg/www.off...ea94187cfe.jpg |
Man, this boat is coming along! Looks awesome! Congrats!! |
Should resemble my avatar once complete.
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Looks Great ...Congrats
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Imagine how it will look w/ some paint and minus the plastic :ernaehrung004:
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Michael, looking really nice. As always you have some cool ideas! Looking forward to the finished product! |
Thank you Ron!
Almost time to schedule my electronics tutorial w/ you. I want to make sure I know how to operate the electronic equipment I opted for so I may get the full benefit of them. (ie; Auto Pilot, Flir, Rear Camera etc) |
Wet sanding and buffing today.
Looking forward to seeing the finished product outside in the sunlight. All 4 colors are pearl or metallic. https://cimg8.ibsrv.net/gimg/www.off...c9b2af03b6.jpg https://cimg9.ibsrv.net/gimg/www.off...6af137bf3d.jpg |
Classy
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I've had pearl white boats in the past. Night and day difference between the pics vs in person in the sunlight. It will look great.
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Originally Posted by Mentalpause
(Post 4674876)
I've had pearl white boats in the past. Night and day difference between the pics vs in person in the sunlight. It will look great.
My hullsides are actually silver pearl over the base white Nor-Tech uses to match their gel. They did several sprayouts for me until we got the desired look. The black stripe should really pop, it's a Cadillac color that has allot of flake in it. https://cimg3.ibsrv.net/gimg/www.off...fafabd6dc3.jpg |
We had the same concern we voiced to Mitcher T.... That we didn't want that milky or creamy color look. Same deal, he went white with a pearl overlay. In pics or from a distance you swear it is just white. In sunlight it popped. That cadillac black metallic will look great with it.
https://cimg1.ibsrv.net/gimg/www.off...e108c4e84.jpeg |
https://cimg8.ibsrv.net/gimg/www.off...0fba3316bc.jpgThank you John & Conrad Kray of Sportboats Marine for the progress pics following your Nor-Tech Factory visit today.
A special thanks to Kevin Lane who came up w/ the scheme & Paul Diogo the artist who turns artists renditions into reality. I'm told all she needs is some water & a sea trial. https://cimg7.ibsrv.net/gimg/www.off...079c0d4723.jpg https://cimg1.ibsrv.net/gimg/www.off...a22296808c.jpg https://cimg2.ibsrv.net/gimg/www.off...05a438a1e7.jpg https://cimg3.ibsrv.net/gimg/www.off...10ed7a3d67.jpg https://cimg0.ibsrv.net/gimg/www.off...cd591472e4.jpg https://cimg4.ibsrv.net/gimg/www.off...b826b550f3.jpg https://cimg6.ibsrv.net/gimg/www.off...72c63a11f0.jpg |
Great looking boat, what engines are on that?
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Congratulations Michael, and just in time for spring!!!
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Originally Posted by wananewboat
(Post 4675820)
Great looking boat, what engines are on that?
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