View Full Version : whats the best motor
02-06-2002, 08:32 PM
im looking for the best 'fun' motor that i can find 05 style, i want to put it into my avenger it has a x432 prop on it and a esc w/ no motor limits, so what do u guys think, i want it so that i can afford it too, no $100 motors, like $50 is my max, i dont really care about run times i just want some speed out of this little thing, i dont think that i will race w/ it at all, exept w/ my buddies -Jeff
02-06-2002, 09:20 PM
We use the Trinity Chameleon 19-turn in our club Avengers with the stock prop. Speeds are good and run time with RC2000s are over five miutes. This has worked out great for us, but there have been prop issues.....
Using the x432 prop, run time will be lower and the motor will get hotter...I'd not go much lower in turns than the 19T. You 'could' try a 15-turn and an x427 prop, but I have no idea how well that would work. I suspect that motor temp would be too high after 3-4 minutes, and motor damage would eventually result.
02-06-2002, 09:29 PM
i have put water cooling on the boat, it is just a small little pick up about 2mm under the back of the boat, works great, and the motor that i have now pushes that prop just fine, all i have now is a green machine and it gives me decent run times, and ok speed and has not got really hot evenbefore i put the water cooling on it!
02-07-2002, 05:16 PM
o by the way i also have a x430 for it only a mm smaller tho
02-08-2002, 01:59 AM
... My small Sonia runs with a 15x2 flawlesly ...
and a X434 ...
The difference is I only use 7x800AR and a heat dissipator is cemented to the can ...
So : Heat energy accumulated during the mere 3-4min isn't enough to burn the comm ...
The boat is 930g and the prop is horizontal and semi-immerged ...
Pics ASAP on R/C Saga ...
No no no...
The bestest, cheapest motor for fun on the Avenger is the 550 motor that they put in R/C cars and trucks like Kyosho or traxxas. You just solder on the two wires and stick it in the boat. It runs (forever) and doesn't need any maintenence, except for a drop of oil on the bushings occasionally.
About $12 at a hobby store.
You don't need the spec motors with all that power. They are expensive $40(!), get hot, need lotsa soldering work to install, and wear out really fast.
02-08-2002, 10:39 PM
i have some of the 550 out of my e-maxx! it is the 17x1, powerfull little suckers! or i could use the stock traxxas 550 that i took out, dont know what those are tho
TomL,LMAO...if that motor is the BESTEST what is the WORSTEST:tongue:
I Probably would say the wortest SETUP would be a motor with no vents in the can & plastic endbell, and a x435 prop with 6 cells.
That way you get low RPMs, highest current draw, and no cooling, so the endbell melts, and the motor melts it's way through the bottom of the plastic hull.
BLUB BLUB BLUB BLUB BLUB .....
02-09-2002, 04:05 PM
it sounds like that u know from experience?!?!?!?
02-09-2002, 04:40 PM
Probably we don't talk of similar speeds and the same concerning the setups ...
What I know is that my Sonia mod. doesn't heat !
Sorry, but gonna wonder what kind of poor setup you can have chosen ...
Ha, give us pix, burning the comm seems so natural for you !
From what I know, a motor at lower RPM uses more current than one at higher RPM, and the big prop will load it even more. All this and the can with no cooling slots will cause the plastic endbell to get hotter than usual, and maybe even melt. I have seen some melted ones. I, however, do not set up any of my boats this way.
02-09-2002, 06:36 PM
What I know is that my Sonia mod. doesn't heat!One major difference is that the Sonia is a surface drive and uses low-output cells, which allows it to use a larger prop and/or a lower-turn motor without overheating. If the Sonia gets 4 minutes of run time out of 800mAh cells, then the approximate amp draw is a whopping 12 amps - no wonder the motor doesn't get hot!
02-10-2002, 02:38 PM
Exactly what I refered to when talking about setups ...
In an electric chain, remember you can decide wich is the limitation (Batt, Esc or Motor for the ones who prefer to burn this last), so my Airplane, car and boat tests proved that 800AR is a clever choice when optimizing the use of a 05 mod ...
The first machine was a given 1kg aircraft on which I wanted to get the ultimate power from a 05mod : Answer : Keep the weight as low as possible and choose the minimum Capacity cells that hold the Amp : YES it was 240g 7x 800AR ... And I got unlimited vertical climbs even on a direct drive (SMT Meteor200 + 9x5")
Now let's talk fast e-boats and say
... like SAGA : "You're not alone !"
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