Search found 63 matches

by electric tug
Mon Nov 21, 2016 2:41 pm
Forum: Jet Ski Power
Topic: Starting my first build with a jet TNT
Replies: 77
Views: 32301

Re: Starting my first build with a jet TNT

Dave, I ran into some issues right of the bat with some of the things you mentioned. First, core was a Bad idea but i needed to try. So i designed up a small sprint jet, which has a lot of those issues solved. 2. I now see im going to have to put the hull on hold in order to get the drive train. I a...
by electric tug
Fri Nov 18, 2016 7:00 am
Forum: Jet Ski Power
Topic: Starting my first build with a jet TNT
Replies: 77
Views: 32301

more on the D.J. and the TNT

Thanks Dave for all your input. great suggestions, I would have never thought of a folder. Im less of a planner than you ,Im more of a jump right in kind of guy. I will say I have been thinking of this boat for ages, so I knew what I was getting into. and it seems small compared to the Fred Murphy I...
by electric tug
Thu Nov 17, 2016 7:39 pm
Forum: Jet Ski Power
Topic: Starting my first build with a jet TNT
Replies: 77
Views: 32301

Re: Starting my first build with a jet TNT

Dave I just started my build. not much room to work with, but its doable till spring when i can move it outdoors to finish. Also I am finding out core is NOT easy to cut. keep me updated on the tnt progress, i might need your technical expertise on the installation... a fun video for anyone to watch...
by electric tug
Thu Nov 17, 2016 10:28 am
Forum: Jet Ski Power
Topic: turbo subaru dyno jet with cored hull
Replies: 4
Views: 5872

the first challenge

HI, If any one out there is reading this, I came across the first hurdle today. (Of Many Im sure). I now own 7 sheets of 1/2inch Nida core. arrived today. But there is a slight issue; Nida core, in all thier wisdom (or greed?), does not make 4 x 8 sheets of core. Nope!, they had to break from tradit...
by electric tug
Thu Nov 17, 2016 9:22 am
Forum: Jet Ski Power
Topic: Starting my first build with a jet TNT
Replies: 77
Views: 32301

Re: Starting my first build with a jet TNT

Hi Doug, thanks for popping in. I'm currently helping a buddy build a Subie 2.5L SOHC for his Outback and I've been studying the design pretty closely. I think these engines would work really well in what you're looking to do. They're very compact, light weight and they will definitely make some ho...
by electric tug
Wed Nov 16, 2016 8:44 am
Forum: Jet Ski Power
Topic: turbo subaru dyno jet with cored hull
Replies: 4
Views: 5872

turbo subaru dyno jet with cored hull

Hi, I am starting a dyno jet build. two things that are going to de different with this build: 1. Im using a 1/2" core rather than Aluminum or wood. wood is far too weak for river travel. also weight is a consideration. A carbon fiber/kevlar hull, costed out is less money than buying a new welder, l...
by electric tug
Wed Nov 16, 2016 7:53 am
Forum: Jet Ski Power
Topic: Dyno Jet with Poly Core instead of plywood?
Replies: 1
Views: 9952

Re: Dyno Jet with Poly Core instead of plywood?

i am doing mine with pp core and cf/kevlar, better, and lighter than Al. :D
by electric tug
Tue Nov 15, 2016 8:38 pm
Forum: Jet Ski Power
Topic: Starting my first build with a jet TNT
Replies: 77
Views: 32301

Re: Starting my first build with a jet TNT

im going to attempt a subaru turbo boxer about 190 hp in a composite/carbon kevlar dyno jet.
nice donor!!!
by electric tug
Sun Mar 06, 2016 11:17 pm
Forum: Metal
Topic: Building a Steel, Fred Murphy!
Replies: 63
Views: 21642

Re: Building a Steel, Fred Murphy!

...I invested in a Milwaukee heavy duty nibbler. (3/16 capacity) It was expensive, but did an excellent job of plate cutting using a batten clamped in place as a guide with very little fit up required after cutting. After I finished with it (about 6 years later!) I sold it for about 70 percent of c...
by electric tug
Sun Mar 06, 2016 11:08 pm
Forum: Metal
Topic: Building a Steel, Fred Murphy!
Replies: 63
Views: 21642

Re: Building a Steel, Fred Murphy!

. ...Was every single bead planned and laid out and prepped in a weld chart before the first pass? If not then I can see lots of room to upgrade the welding knowledge applied. My god man!, its a boat not a nuclear pressure vessel... :lol: ... you're saying there is room to improve some welding rela...
by electric tug
Sun Mar 06, 2016 3:58 pm
Forum: Metal
Topic: Building a Steel, Fred Murphy!
Replies: 63
Views: 21642

Re: Building a Steel, Fred Murphy!

Doug, lots of ground to cover here. I"ll just remark that MIG vs stick is about speed and distortion control. If you've already seen some contraction distortion in the keel assembly? (inferred from my reading of the previous posts??) then.... I'd say it was time to consider faster travel and less n...
by electric tug
Sun Mar 06, 2016 10:11 am
Forum: Metal
Topic: Building a Steel, Fred Murphy!
Replies: 63
Views: 21642

Re: Building a Steel, Fred Murphy!

. If I were welding a small steel boat, I'd want to use MIG with small wire- say 0.023" or 0.030" wire for 1/8"-0.125" hull sheathing. The reason I'd want to stay away from stick welding is the speed of transfer of the weld is so slow... the parent metal will build up much mUch MUch more heat of ex...
by electric tug
Sun Mar 06, 2016 10:00 am
Forum: Metal
Topic: Building a Steel, Fred Murphy!
Replies: 63
Views: 21642

Re: Building a Steel, Fred Murphy!

Doug, thanks for the kind words about my work, You are most welcome Kevin, I will attempt to respond to the key points in your generous responses... Yes, I absolutely will keep it, I will take that advice, to keep my boat parts even if not used. They are worth it As to your project, my take is that...
by electric tug
Fri Mar 04, 2016 6:38 pm
Forum: Metal
Topic: Building a Steel, Fred Murphy!
Replies: 63
Views: 21642

Re: Building a Steel, Fred Murphy!

Doug Have a glass of lemonade. Whatever it is, if you can build it the first time... You can fix it, better! I know that! Bill HI Bill, i Juts looked over your Tahoe build...wow! what else is there to say. btw thanks for taking the time to respond earlier. do you have any youtube vids of it running...