Gas Cat

[Alan Elzer]

I like the way your radio box is it won't let any air get trapped back there my strut gets in the way off moving it that far back

If you used the radio box that comes with hull there's room for strut.

 

[Notter Dean]

Gas tank for the cat fits nice, what brand is that

 

[Roxyflash]

Sullivan s391 marine tank

 

[Jeff Barnes]

Just about done

 

[john v]

I am in the process now building a r42

 

[Jeff Barnes]

Awesome John send some pics easy build

 

[Ted Billy]

Looking great! Should be a fun season in Cat this year.

 

[Jeff Barnes]

Yes I'm looking forward to it Dean got a R42 also

 

[john v]

I set my cg at 35%, the stuffing tube was already glassed in, if the motor is too far forward I will have to cut out the tube and some glasswork, hopefully will be able to test soon

 

[Jeff Barnes]

I'm at 15 1/4

 

[Alan Elzer]

I set my cg at 35%, the stuffing tube was already glassed in, if the motor is too far forward I will have to cut out the tube and some glasswork, hopefully will be able to test soon

John what hull you using? What engine determines cg's. I'm got R42 with Janson 29.5 at 15 1/4". Let me know if you need a ABC prop for it

 

[john v]

The cat I'm building now is a ac r42 cat, older version, I'm guessing when they were built in Canada, this one is getting a small block zenoah, I have a prop from Bob English that is a 2 blade that I will try, most likely run a 3 blade from Bob Austin.
It's a small boat so we'll see how it runs

 

[Jeff Barnes]

Ready for some stickers and try it out oh yah gas line also

 

[john v]

That's a lot of motor for that boat, careful testing, get some props that will calm the boat down, don't be afraid to add some lead in the hull, not a bad thing

 

[Dave Gilles]

That's a lot of motor for that boat, careful testing, get some props that will calm the boat down, don't be afraid to add some lead in the hull, not a bad thing

lol it should be fast!!!

 

[john v]

They scream with a small block, it's going to be impressive with a big block

 

[john v]

Don't forget flotation for the cowl

 

[Roxyflash]

I see you must of liked my tank mount theory hope to get a speed on my f41 yours looks great i tried a zip prop 6717/3 my cmb didn’t like it put a 2714/3 chopper on it was really fast got my gps in it and put a zipkitts pipe on it had a vision pipe I have a couple other props to test.I also added some tubing on the rod for tank the soft tygon

 

[Roxyflash]

When I installed the pool noodles I found some solid 2 1/2 inch noodles they fit in the bottom perfect then I used the standard 2 inch hollow noodles on top of the 2 1/2 I also surrounded the front with the 2 inch.I also used 3/16 tig rod for rudder linkage.I found a heavy duty o ring for radio box came off of a Cummins fuel filter housing it’s Viton .Heres a couple pics.

 

[Jeff Barnes]

Thanks for all the good advice everyone I almost forgot floation in the cowl thanks for the great tank idea it fits in there like a glove thanks again Jeff Barnes