WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
You probably won't like the way I do it but look at my tubbie build thread, I am about to do the install on my 300SX.
2022 FX1 maybe the last one?
- Thread starter SALTDOG
- Start date
You probably won't like the way I do it but look at my tubbie build thread, I am about to do the install on my 300SX.
E350
Site Supporter
- Location
- Sacramento Delta
Ok @WFO Speedracer and the rest of you guys and gals, I just went through @WFO Speedracer 's posts and I read his making tubbies thread (awesome) but did not see any tubby adhering posts.
I am not going to glass over the Tom 21FX-1 tubbies which I am installing. I just want to glue down (and maybe also bolt down) my Tom 21 FX-1 tubbies.
Should I use Gorilla glue, 3M 5200, epoxy, what?
I am not going to glass over the Tom 21FX-1 tubbies which I am installing. I just want to glue down (and maybe also bolt down) my Tom 21 FX-1 tubbies.
Should I use Gorilla glue, 3M 5200, epoxy, what?
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
I said about to , I am using Gorilla glue but for most here I am sure it's not the preferred option, Tom 21 will tell you epoxy thickened with cabosil, West Systems six 10 epoxy or other thickened epoxy , my point is epoxy does not stick to foam that well, are you sticking foam to SMC or fiberglass to SMC, I am not familiar with his bolt on tubbies construction.
What's the back look like ?
What's the back look like ?
E350
Site Supporter
- Location
- Sacramento Delta
The FX-1 hull is fiberglass. And yes, Tom 21 tubbies are a fiberglass exterior shell with a foam filler which is shaved down to the height of the shell edges.
The 550SX hull for which I also have a set of Tom 21 tubbies is made out of SMC.
I would appreciate suggestions for adhering both.
And yes, IIRC, Tom said to use thickened epoxy.
The bolt on option is the same as his regular tubbies except for the molded-in indentations with hole for each bolt.
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WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
Thickened epoxy is probably going to be your best option, I am glassing mine on so it doesn't really matter
E350
Site Supporter
- Location
- Sacramento Delta
Understood. Thank you.
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
Also if you don't want to bother mixing up epoxy and filler for my money this is the best option out there right now and it fits in a standard caulking gun..
You never put them on after getting all the suggestions? dude..
Get busy
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
Sorry you will have to excuse my ignorance , since I have tubbie molds I kinda live in a bubble, I haven't ever purchased a set or researched any of the newer versions , I googled tom21 sponson and on his post he clearly states they are just his sponsons with reliefs for screws , basically the same thing I did on the ones I made , I mistakenly thought these bolt on sponsons were removable, I guess they technically are but not easily .
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- Location
- Ormond Beach Fl.
Tubbies integrated on Tom 21 hull vs chubbies on original FX1. Love the chubbies in surf, added rocker to nose and flat matching bottom of hull greatly improve wave riding forgiveness.
I epoxied chubbies on with West Systems adhesive mixture then glassed over with 2 layers of 8 oz. Don’t mind rattle can paint, it’s a rider not a looker.
I epoxied chubbies on with West Systems adhesive mixture then glassed over with 2 layers of 8 oz. Don’t mind rattle can paint, it’s a rider not a looker.
Attachments
tom21
havin fun
- Location
- clearwater FL
In the past on the screw on tubbies I used thickened epoxy in addition to countersunk stainless steel screws. For an extra measure you might want a thin layer of cloth over onto the hull. Mine have been on forever without the layer of cloth but there is a crack between them and the hull. The hull flexed and the epoxy couldn't.
For the bolt on I send the stainless hardware and would recommend any adhesive/sealant. 5200 being the best but some of those caulks are just as stout. As long as its flexible and sticks it should seal it up.
Back on topic, this is the last hull I made but it won't be the last hull I make. I am really getting a kick out of all the comments about the hull. Glad ur enjoying it.
For the bolt on I send the stainless hardware and would recommend any adhesive/sealant. 5200 being the best but some of those caulks are just as stout. As long as its flexible and sticks it should seal it up.
Back on topic, this is the last hull I made but it won't be the last hull I make. I am really getting a kick out of all the comments about the hull. Glad ur enjoying it.
wydopen
onthepipe
- Location
- Goleta the Goodland
This is what Ive always used..
www.neverseezproducts.com
It stays flexible which I think it important. My sons ski had them put on with epoxy before I got it and it's starting to crack the paint around them...
Trace the tubbie on the hull, scuff it up, shave down the extra foam around the edges of the tubbie so the adhesive grabs as much fiberglass as possible and then use SS screws (ive used panheads and it came out cleaner than trying to countersink) and start on one side and work your way to the other so it can conform to the hull. Dont need clamps or anything. Blend the adhesive that squeeze's out with your finger, cut the extra screw off in the engine compartment with a grinder and you are good to go.
Bostik 940FS Marine SMP Adhesive/Sealant 290 ML. Cartridge - Bostik Never-Seez Products
Bostik 940FS - Marine Grade Fast Set SMP Adhesive/Sealant 290 ML. Cartridge Bostik® Marine 940FS is a high performance, rapid moisture-curing, fast skinning, one-component, sealant/adhesive based upon Silyl Modified Polymer (SMP) Technology; specially formulated to withstand harsh marine...
It stays flexible which I think it important. My sons ski had them put on with epoxy before I got it and it's starting to crack the paint around them...
Trace the tubbie on the hull, scuff it up, shave down the extra foam around the edges of the tubbie so the adhesive grabs as much fiberglass as possible and then use SS screws (ive used panheads and it came out cleaner than trying to countersink) and start on one side and work your way to the other so it can conform to the hull. Dont need clamps or anything. Blend the adhesive that squeeze's out with your finger, cut the extra screw off in the engine compartment with a grinder and you are good to go.
tom21
havin fun
- Location
- clearwater FL
Oh and Tim, that's a 2 inch extended ride plate. That was the whole point of making the hull shorter so you could shorten the hull by shortening the plate to whatever suits your ride preference.
- Location
- Ormond Beach Fl.
Thanks, cut the first one down 1” but cutting the wings off the back made a huge difference, Carter said he cuts them off every AM hull he keeps. I epoxied the braces on ride plate as it seemed vulnerable with that much cantilever, met a guy here couple years ago that had one and said he couldn’t keep ride plates on! Easy fix. Need some tray time to determine what to do with 2nd ride plate.
- Location
- Ormond Beach Fl.
Attachments
tom21
havin fun
- Location
- clearwater FL
On your other hull are you running a +1 ride plate? The wide rails are another ride tuning feature to counterbalance the shorter hull. Looks like you took the opposite direction and cut off what I worked hard to install and ignored the part that was intended to be cut. But it's your hull and you obviously have been modifying it to your liking. As long as you enjoy it then it's doing what it was meant to do.
E350
Site Supporter
- Location
- Sacramento Delta
Thank you guys!
Tom how about making a Wamilton's-esque 96-97 RN Super Jet hull out of fiberglass?
@wydopen Bostik 940FS is out of stock everywhere I looked. So I will use 3M 5200 White.
BTW, Tom ships stainless steel hurricane bolts with his bolt on tubbies. They are a flat, relatively thin head which distributes the force over a much wider area than a typical pan head.
Tom how about making a Wamilton's-esque 96-97 RN Super Jet hull out of fiberglass?
@wydopen Bostik 940FS is out of stock everywhere I looked. So I will use 3M 5200 White.
BTW, Tom ships stainless steel hurricane bolts with his bolt on tubbies. They are a flat, relatively thin head which distributes the force over a much wider area than a typical pan head.
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wydopen
onthepipe
- Location
- Goleta the Goodland
I might have a few tubes, I'll look...in my experience 5200 is harder to blend and clean up after and takes along time to dry. If you do use 5200 I'd tape everything off really well to minimize cleanup. I used 5200 to put a hoodliner in and it was kind of a pain. Do those bolts through bolt or do you epoxy the nuts on to the outside of the hull?
E350
Site Supporter
- Location
- Sacramento Delta
@wydopen Tom21's hurricane bolts bolt through the hull. I did buy those perforated epoxy on stainless steel nuts to glue onto the inside of the hull where the hurricane bolts come through.
Thank you for looking for the adhesive. I am sure that I would need two tubes. (And I do have two tubes of 3M 5200 white.) Thank you for suggesting to pencil outlline the sponson on the hull for rough up sanding prior to adhering.
BTW, I am recovering from inguinal hernia surgery and my season is over, so it can take all the time it needs to dry.
And truth be told, although my wife has been water skiing 3 times a week this Summer, I tore up my right shoulder so bad this Winter snow ski season (tearing 2 and 1/2" of my front ligaments - the two which are completely torn cannot be reattached and the third is 1/2 torn through but they won't do surgery on it). So, we never put a jet ski in the water this Summer.
So, I have been doing taxes and catching up on other paperwork (i.e., computer work).
Thank you for looking for the adhesive. I am sure that I would need two tubes. (And I do have two tubes of 3M 5200 white.) Thank you for suggesting to pencil outlline the sponson on the hull for rough up sanding prior to adhering.
BTW, I am recovering from inguinal hernia surgery and my season is over, so it can take all the time it needs to dry.
And truth be told, although my wife has been water skiing 3 times a week this Summer, I tore up my right shoulder so bad this Winter snow ski season (tearing 2 and 1/2" of my front ligaments - the two which are completely torn cannot be reattached and the third is 1/2 torn through but they won't do surgery on it). So, we never put a jet ski in the water this Summer.
So, I have been doing taxes and catching up on other paperwork (i.e., computer work).
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- Location
- Ormond Beach Fl.
In my opinion the wings on the back make leaning hull into a turn more difficult, particularly on a wave. I’msure they are an asset on flat water but make hull want to ride flatter. But anyone can cut off as much as they want based on personal preference. I need more tray time to determine if I want to trim further towards nose.