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OS 46 powered TC31 the making...

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OS 46 powered TC31 the making...

Old 07-04-2007, 12:01 AM
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wave waker
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Default OS 46 powered TC31 the making...

ok guys, the waiting is over, got the hull and i'm happy of the outcome...here's she is....any opinion/suggestion either wild and crazy is welcome.

my goal of the project is not just to put a bigger motor but to make the boat run in 50 mph+ with good stability...and the fun just started....
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Old 07-04-2007, 06:21 AM
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gooycheese
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Default RE: OS 46 powered TC31 the making...

That looks really good Wave Good luck with a stable 50mph+ . Looking forward to seeing these pics of this build. I am hoping to take the engine I am putting in this rigger I am building out and maybe trying to put it in the TC, this will be a winter engine upgrade for the rigger ( so put the ops in the cat if I can afford a hotter engine over the winter).


Paul
Old 07-04-2007, 12:50 PM
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Default RE: OS 46 powered TC31 the making...

cool i want to see everything in pictures and video good luck
Old 07-04-2007, 07:08 PM
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Default RE: OS 46 powered TC31 the making...

I put a os.46 in mine and it is way over powered for a rtr boat. It doesn't handle good at all way to much power for this boat.I'm now taking it out and going with a os .21.
Old 07-05-2007, 12:06 AM
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wave waker
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Default RE: OS 46 powered TC31 the making...


ORIGINAL: tugboatjoe

I put a os.46 in mine and it is way over powered for a rtr boat. It doesn't handle good at all way to much power for this boat.I'm now taking it out and going with a os .21.
sad to hear that[]...what u mean of doesn't handle good? does it blowing over, cavitating, hooking,etc?

what set-up u did? like what prop, CG,prop height and angle? did u mind getting the top speed?

i can't tell right now what will happen but pretty soon[8D]..

so how's os .21 compare to stock .32?
Old 07-05-2007, 06:50 AM
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gooycheese
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Default RE: OS 46 powered TC31 the making...

A week from this Saturday I will be getting 2- K&B .21's for my cat, I will let ya know how it does. I'm getting 2, 1 for a spare.
Old 07-05-2007, 06:50 AM
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Default RE: OS 46 powered TC31 the making...

It does alot of hooking. It shoots off to you side real bad. The speed is not as good as you would think.Havn't got the os.21 in it yet. I put a TLR rudder system on it and thinking that would help but still the same. Hope yours does better then mine...
Old 07-05-2007, 07:02 AM
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wave waker
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Default RE: OS 46 powered TC31 the making...


ORIGINAL: gooycheese

A week from this Saturday I will be getting 2- K&B .21's for my cat, I will let ya know how it does. I'm getting 2, 1 for a spare.

Paul,
make it TWIN .21 TC31....keep updating us of ur mod....

tugboatjoe,
is that an in-line rudder?..i might go in-line rudder....

btw, since this OS .46 recommended .60-.90 tuned pipe instead of .40 pipe here's i got for testing, the black one is rossi pipe .45, the next is .60 then a .60 irwin pipe and the biggest one is a .90 this is huge just like gas boat tuned pipe...
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Old 07-05-2007, 07:31 AM
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tugboatjoe
 
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Default RE: OS 46 powered TC31 the making...

Yes it is the inline rudder system. The scoop on your boat is too cool....
Old 07-05-2007, 07:38 AM
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Default RE: OS 46 powered TC31 the making...

I have a .60 pipe on mine...It's pretty loud!! I havn't took the os.45 out yet..I think i'll wait and see how yours run... Did you paint the boat and put that scoop on it?
Old 07-05-2007, 07:45 AM
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gooycheese
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Default RE: OS 46 powered TC31 the making...

You could try off setting your strut to the right , like maybe a thrust plate behind the mount? Do ya think its hooking from prop walk? Ummm and no not gonna do a twin, one engine for me to worry about running is more than enough.


Paul
Old 07-05-2007, 08:00 AM
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Default RE: OS 46 powered TC31 the making...

Kinda new at boats.... When your running about quarter throttle and punch it wide open throttle it will shoot off to one side like crazy. I ask around why it was doing it and was told to much power for that boat.. It don't run as fast as you would think... I lowered and raised the prop and didn't work at all...
Old 07-05-2007, 11:26 AM
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Default RE: OS 46 powered TC31 the making...

hey Wwaker,I also like to overpower little hulls with BIG engines.....,but let me tell you my experiences in doin it[:@]...First,I don't mean to discourage you or flame your idea but It's a lesson in futility,as TugBoatJoe sez,in his "bottom line assesment" it won't handle good,and although the WOW factor is there, it'll soon turn to AAAwwww s.h.i.t.....why is it doing that???....rescue boat please...[:@],by the time that .46 winds halfway up, your in the zone of instability and quikly approaching the danger zone...[:-], I put a KnB.91 in a 40" prather hull and could only get 3/4 max throttle out of it before it became airborne with no other options left in being able to control it's stability,(but the WOW sure was there ....should you consider to proceed,then consider these little hints to help you out,add some more glass/epoxy to the engine/mount area and the transom as well,to handle the extra stress,and use a good strong steering servo....,shim/offset the strut just a coupla degree's to compensate for the prop walk/torque steer effect....,using a prop with a smaller pitch can also help in that matter...IMHO, the os.21 is a great choice and will push your hull to it's limits, goood luck buddy whichever way you go,......
Old 07-05-2007, 11:55 AM
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wave waker
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Default RE: OS 46 powered TC31 the making...

the scoop is made of milk jug handle..

thanks guys for the ideas/ opinion.....as i've said any comment is welcome..

what makes me goin is that when i have the stock set-up and this boat is hitting 40's and i don't have any problem with stability, then i got bored, that's where the power and speed craving comes in,,gotta pretty excited what will be the outcome..

i know couple of guys put .21 but they don't post more info after...i just have a doubt that .21 can push tc31 to 40's mph...

got props to play around...
Old 07-05-2007, 06:06 PM
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Default RE: OS 46 powered TC31 the making...

well I am going to the pond tonight with my OS .21 powered TC31 and a GPS so I will tell you how it goes. All I know is that I dont dare touch the steering when it is at WOT because it gets REALLY touchy! I have barrel rolled it a couple times but it sure is fun to play with! I have been using a modded x440/2 but tonight I will be trying an x440/3 so I will let you know how it goes.

[link=http://youtube.com/watch?v=JuBPLikZuMA].21 TC 31[/link]

This is on traxxas 20% (yuck! It runs waaay better on the Byron 60% I have it on now!)
Old 07-07-2007, 09:56 AM
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Default RE: OS 46 powered TC31 the making...


ORIGINAL: Drmeff

well I am going to the pond tonight with my OS .21 powered TC31 and a GPS so I will tell you how it goes. All I know is that I dont dare touch the steering when it is at WOT because it gets REALLY touchy! I have barrel rolled it a couple times but it sure is fun to play with! I have been using a modded x440/2 but tonight I will be trying an x440/3 so I will let you know how it goes.

[link=http://youtube.com/watch?v=JuBPLikZuMA].21 TC 31[/link]

This is on traxxas 20% (yuck! It runs waaay better on the Byron 60% I have it on now!)

any info?

btw, i installed a streamlined waterpick-up on both sponson bottom, aesthetically better than stock pick-up or transom attached water pick-up, less drag creating too, but i do no yet if it will affect the boat's stability handling,,picture will be posted soon.
Old 07-10-2007, 08:55 PM
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Default RE: OS 46 powered TC31 the making...

pics of streamlined water pick-up, intalled in the rear part of the sponson bottom.
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Old 07-10-2007, 09:16 PM
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Default RE: OS 46 powered TC31 the making...

Ummm wave that looks like terrible drag there to me? Why wouldnt you just get a decent rudder that has a pickup or even 2 pickups?


Paul


ps. See ya in 4 days
Old 07-10-2007, 09:53 PM
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wave waker
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Default RE: OS 46 powered TC31 the making...

gooy, it's an experimental so far, just wanna see what this thing gonna do..at the same time i'm not a big fun of waterline showing behind..

here's the unfinished low profile radiobox with tuned pipe above..
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Old 07-10-2007, 10:15 PM
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Default RE: OS 46 powered TC31 the making...

whats with the tubing going to the stuffing tube? if its a shaft oiler where do you hook it? the tuned pipe.. how does it work? sry for all the questions im interested though...
Old 07-10-2007, 10:49 PM
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Default RE: OS 46 powered TC31 the making...


ORIGINAL: mtruex

whats with the tubing going to the stuffing tube? if its a shaft oiler where do you hook it? the tuned pipe.. how does it work? sry for all the questions im interested though...

yup, it's an oiler,hooked to a 1oz oil tank,,not attached yet....that way, no worries of frying the flexshaft.
Old 07-11-2007, 06:20 AM
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Default RE: OS 46 powered TC31 the making...


ORIGINAL: wave waker

gooy, it's an experimental so far, just wanna see what this thing gonna do..at the same time i'm not a big fun of waterline showing behind..
It's going to create a huge amount of drag and will have a negative effect on the handling of the boat.
Old 07-11-2007, 09:12 AM
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Default RE: OS 46 powered TC31 the making...

Wave do you want to go faster or slower. Whats with the 2 water brakes at the bottom of your hull. Iff you want less drag make a water pickup like the picture below. we have been using it for years on our FSR-V boats and if theirs any class that needs the least amount of drag it is FSR-V.
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Old 07-11-2007, 09:23 AM
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Default RE: OS 46 powered TC31 the making...


ORIGINAL: wave waker


ORIGINAL: mtruex

whats with the tubing going to the stuffing tube? if its a shaft oiler where do you hook it? the tuned pipe.. how does it work? sry for all the questions im interested though...

yup, it's an oiler,hooked to a 1oz oil tank,,not attached yet....that way, no worries of frying the flexshaft.
I hope the oil you're dumping in the pond is biodegradable.
Old 07-11-2007, 09:33 AM
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Default RE: OS 46 powered TC31 the making...

Amen to that piper chuck As mentioned before I changed my shaft to a 1/4" shaft and pack it with grease before every race day. One practice day had the boat run out due to radio problems and had the boat chuing gravel for 2 minutes. Damaged a descent prop but had no canle breakage. The other guys with the original shaft have to bring spare shafts to a race day cause thei dont last more the a few heats.

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