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Thunder Cat 31

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Old 08-25-2011, 12:49 PM
  #2776
erolos
 
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Default RE: Thunder Cat 31

after 2 gallon of fuel i m still using my tc31 with a smile on my face.everybody knows its a LITTLE BIT noisy but we accept it with that problemnow i m back to purple pipe(silent one) again and i will try to reach some good speeds with that pipe.now i m posting a short video of my tc31.enjoy it

http://www.vimeo.com/28148416




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Old 08-25-2011, 08:47 PM
  #2777
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Default RE: Thunder Cat 31

Need to shorten that pipe and get some revs in her. Then she'll fly. Also makes the pipe a bit quieter.

http://www.youtube.com/watch?v=FXcaqgpU5Ro

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Old 08-26-2011, 06:28 AM
  #2778
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Default RE: Thunder Cat 31

Hesco she is running great feel like sharing a few set up tips with everyone pipe length prop and anything done to your engine so far on mine i have shortened the rudder about an inch opened up the exhaust headder and am running a 443 prop think the best prop was an 445 but i tend to run in rougher watter so i like the smaller prop
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Old 08-26-2011, 10:44 AM
  #2779
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Default RE: Thunder Cat 31

thanks hesco,after a couple of attempt with my new exhaust i will try your suggestion and check the difference about speed and noise!
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Old 08-26-2011, 10:50 AM
  #2780
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Default RE: Thunder Cat 31

what about your top speed after that modifications?and did you have any video about your run?i use byron %30 nitro fuel,m445 prop and removed shim on my tc 31 but i dont know what about my top speed,may be 30mph or just a little bit more?
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Old 08-26-2011, 01:26 PM
  #2781
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Default RE: Thunder Cat 31

never gps it but figurer atleast 2 mph or more and just porting the exhaust headder the engine revs so much better (faster) sounded like a different engine using the stop watch method in the mid 30mph range ill post vidio later if i can get it on this spupid computer
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Old 09-02-2011, 06:43 AM
  #2782
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Default RE: Thunder Cat 31

Just purchased a TC with a Axe/Rossi .45 marine built by Race Prep in Cali....hopefully I'll get a chance to get it broke in before it turns off cold.Been thinkn bout getn one for awhile and decided what the hell..had boats before but work interfered last couple years and really anxious to run again.Plan on custom paint job this winter.Lets see some pics of your paint schemes!!
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Old 09-03-2011, 04:46 PM
  #2783
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Default RE: Thunder Cat 31

Heres a pic of mine the paint didnt stick well so I stripped it back down to white with the same vinyl graphics. hope to repaint soon
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Old 09-08-2011, 07:53 AM
  #2784
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Old 09-08-2011, 08:12 AM
  #2785
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Default RE: Thunder Cat 31

Hey everyone been a while since I've been on here. Decided to get the TC out a few weeks ago to see if it'd still run. Fired right up with no problems. Was able to get some good runs in a few weekends ago and got it GPS'd with my iphone. Right at 37mph so I'm thinking close to 40mph without the added weight to the phone.

One thing I did notice, and I think I was having this problem before I put it away last time, is that it is taking on large amounts of water. I've ordered a few autobailers to put it some maybe those will help.

Now that the weather is getting nice here in OK I hope to start running it more. My plans for it this fall are

install autobailers
trim rudder
repair a few hairline cracks and repaint boat
Polish engine? maybe
Figure out a better way to seal the radio box. Taking all the little screws out each time drives me crazy.

Well thats it for now. Good to see theres still a few people active around here!
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Old 09-08-2011, 09:14 AM
  #2786
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Default RE: Thunder Cat 31

Got my boat,now hopefully can start the break-in this weekend!!
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Old 09-08-2011, 09:17 AM
  #2787
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Default RE: Thunder Cat 31

Well for starters that pipe looks way long
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Old 09-08-2011, 09:38 AM
  #2788
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Default RE: Thunder Cat 31

This was boat project started by a fellow who died shortly after he sent it to the shop to customize.This fall will just be a breakin period for the motor then work it over this winter to have it ready for some good running in the spring.Hopefully the .45 will really push it.
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Old 09-08-2011, 11:30 AM
  #2789
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Default RE: Thunder Cat 31

I wouldn`t be surprised if that TC will blow all others away. I made it to 51 miles with only a .27 engine so this one should be faster if everything adjusted properly
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Old 09-10-2011, 05:33 AM
  #2790
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Default RE: Thunder Cat 31

Need some input...ok.. bought a TC that had been customized,never been in water,inside has been epoxy reinforced...45 Axe/Rossi marine..air inlets cut out,air outlets cut out..rudder trimmed down as was the strut,gonna run 20%nitro for break in since I already have some.My question is props...it came with a Prather 215 which I feel is a bit small..I would like to get 2-3 more before I go run so I can experiment..so which 2-3 do you all think would be in the best range??
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Old 09-10-2011, 07:21 AM
  #2791
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Default RE: Thunder Cat 31

Prather 220 great to break in with. 240 size decreased back cut a whoooole lot and made so thin that you can see through it sharp enough to shave with and she will hall a#^e like you wont believe. Wish i can find the bugger that took mine. But I'll make another

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Old 09-10-2011, 07:23 AM
  #2792
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Default RE: Thunder Cat 31

Got some autobailers installed the other day and they came out pretty good. Just setting it in the pool they work really well.

Also started to paint a few things and got a little carried away. Painted the header and exhuast with some high heat black along with the engine mounts. Then Primered the inside of the hull. Looks much cleaner now.

I bought a can of this stuff called Plastidip at home depot the other day. It's like a rubberized spray paint coating that you can peel off. Decided to paint the hull with it! The finish isn't quite a smooth as I was expecting but I didn't do the best job spraying it either. Will be interesting to see how it affects it on the water. And the best thing is if I don't like it you can peel it right off.
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Old 09-10-2011, 10:36 AM
  #2793
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Default RE: Thunder Cat 31

carefull with the primer nitro will disolve it and make a huge mess i would get nitro proof paint and spray the inside just a heads up but it does look clean
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Old 09-10-2011, 10:38 AM
  #2794
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Default RE: Thunder Cat 31


Quote:
ORIGINAL: catman_grrrrr

Need some input...ok.. bought a TC that had been customized,never been in water,inside has been epoxy reinforced...45 Axe/Rossi marine..air inlets cut out,air outlets cut out..rudder trimmed down as was the strut,gonna run 20%nitro for break in since I already have some.My question is props...it came with a Prather 215 which I feel is a bit small..I would like to get 2-3 more before I go run so I can experiment..so which 2-3 do you all think would be in the best range??
447/3 might work well i run one on my k&b 7.5
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Old 09-10-2011, 07:39 PM
  #2795
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Default RE: Thunder Cat 31


Quote:
ORIGINAL: rcguy1411

carefull with the primer nitro will disolve it and make a huge mess i would get nitro proof paint and spray the inside just a heads up but it does look clean
huh thanks for the tip. What are some paints that are nitro proof? Any of the regular spray paints or do I need to order something special?
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Old 09-10-2011, 08:54 PM
  #2796
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Default RE: Thunder Cat 31

i use a product called luster kote comes in a spray bomb have had good results with it its epoxy bassed
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Old 09-14-2011, 08:08 AM
  #2797
catman_grrrrr
 
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Default RE: Thunder Cat 31

Did shorten pipe some as I also thought was a bit long.Installed pressure nipple at the"fat"of the pipe,installed fuel filter and filter on pressure line to prevent crap in the tank.Did fire it(with water running through the head,SOUNDS GREAT!!! This .45 has some gump!!! Gonna try a quick run Sat...next ?????? Should I tilt the strut down a tad since the pipe sits so high to balance getting on plane,keepin the nose down a bit??
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Old 09-14-2011, 10:24 AM
  #2798
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Default RE: Thunder Cat 31

Nope. First see how it runs. Negative trim on a cat is recipe for submarine tendencies. Rather keep the strut square and drop in vertical a bit. Will get the nose down quickly. And ditch the filter on the pressure line. Keep one on the fuel line.

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Old 09-14-2011, 12:41 PM
  #2799
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Default RE: Thunder Cat 31

Cool...thanks for the info...hopefully weather will hold out so I can run Sat..if not week or so will have to do.
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Old 09-15-2011, 12:40 AM
  #2800
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Default RE: Thunder Cat 31

Have you worked on the hull at all or is it still like it came from the supplier?
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