From Cat to Console, a Nor-Tech CC is in my Future
01-29-2019 | 09:20 AM
#881
Registered
Joined: Aug 2012
Posts: 2,301
Likes: 404
From: Collierville, TN and Pickwick Lake
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
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
Last edited by payuppsucker; 01-29-2019 at 09:28 AM.
01-29-2019 | 09:46 AM
#882
Thread Starter
Registered
Joined: Aug 2003
Posts: 2,975
Likes: 12
From: Charlotte, NC
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.
01-29-2019 | 10:09 AM
#884
Thread Starter
Registered
Joined: Aug 2003
Posts: 2,975
Likes: 12
From: Charlotte, NC
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.
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.
Last edited by NASCAT; 01-29-2019 at 10:14 AM.
01-29-2019 | 10:40 AM
#886
Forum Regulator
Joined: May 2001
Posts: 24,204
Likes: 1,592
From: Worldwide
Hitch tightener...
NASCAT, I highly advice investing in one of these for your hitch setup too:
RM-062.html
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.
NASCAT, I highly advice investing in one of these for your hitch setup too:
RM-062.html
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.
01-29-2019 | 11:04 AM
#887
Registered
Joined: Dec 2017
Posts: 23
Likes: 0
From: Jax, FL
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
01-29-2019 | 01:45 PM
#888
Thread Starter
Registered
Joined: Aug 2003
Posts: 2,975
Likes: 12
From: Charlotte, NC
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.
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.
01-29-2019 | 01:55 PM
#889
Thread Starter
Registered
Joined: Aug 2003
Posts: 2,975
Likes: 12
From: Charlotte, NC
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.
Last edited by NASCAT; 01-29-2019 at 01:58 PM.
