Custom ESCs?

[BrianG]

31% ?!!! Wow, that's a huge difference. Even 5% is pretty large. Since most decent motors are around the 85% range, 31% less would put it much closer to that of a nitro motor.

Seriously, if a motor is pulling ~250w average with 1500w bursts (typical average), then that low of an efficiency would result in really high motor temps. I'd like to see how they got those numbers...

[Unsullied_Spy]

Originally Posted by BrianG

31% ?!!! Wow, that's a huge difference. Even 5% is pretty large. Since most decent motors are around the 85% range, 31% less would put it much closer to that of a nitro motor.

Seriously, if a motor is pulling ~250w average with 1500w bursts (typical average), then that low of an efficiency would result in really high motor temps. I'd like to see how they got those numbers...

I believe they meant a 31% improvement over the Losi motors, not 31% better efficiency.

[BrianG]

Hmm. Still, that's a pretty large amount IMO.

[Unsullied_Spy]

Yes it is. I haven't been impressed by any Horizon electronics, and it seems their motors follow the same degree of quality. I found a link:
http://thetoyz.com/forums/index.php?showtopic=17824

[The Cow]

Originally Posted by Unsullied_Spy

Thanks for the input. I'm thinking of running either a Feigao or another motor which is said to be 31% more efficient than the equivalent Losi motor (I've got the link on another computer). Are you running an extended chassis? The Desert Truck is longer than the Micro T, hard to tell with those big tires.

No problemo my friend

I have used the Feigao motors.... They are excellent little motors however for a speed demon without getting into the custom gearing or extra cells (I prefer light and fast) they do not offer the high KV options. I think 7888 is the highest but its been a while. With the feigo/Lipo you can expect well over a half hour runtime I would suggest you go with the long can as it will run nice and warm while the stubby can run a little hot depending on your gearing/driving/weight etc.

The one above no longer exists in that form. There I was running a 3racing CF DT chassis... The wheels by the way are xray M18 foamies (32mm hieght) custom adapted for the micro t. They are one killer lightweight setup for on-road. I included a few pics in case you might want to try it... Takes some practice to get them balanced but well worth it!




Here is a few pics of how she last sat (Now in pieces for another custom job) Here she was set up as a mid motor/10mm extended wheelbase.... How do you like that center of gravity

Hope that helps

Heath

[Unsullied_Spy]

That looks great, much more work in that than I really plan to do to my Micro My DT is totally stock but I put the mid-sized pinion on it and a Losi 2s lipo and it's reasonably quick now but I'm after the power and runtimes of brushless. How well do the long can Feigaos fit? I was thinking of getting a S can and running either 1s or 2s lipo.

[The Cow]

Originally Posted by Unsullied_Spy

That looks great, much more work in that than I really plan to do to my Micro My DT is totally stock but I put the mid-sized pinion on it and a Losi 2s lipo and it's reasonably quick now but I'm after the power and runtimes of brushless. How well do the long can Feigaos fit? I was thinking of getting a S can and running either 1s or 2s lipo.

Thanks

Keep in mind depending on the motor Kv it will likely end up slower on 1s... However the fiegao/mamba combo with the exact same set up otherwise will likely doublt-triple your run time and be signifigantly faster to...

The long can is tight... Depending on the wheels could be to close for comfort. From the sound of your goals though you may be happy with the stubby... For my use it was very taxed, Not as bad as the excelorin but they are also much higher KV and pretty lousy to be honest in the quality department... The Fiegao is a kick ass little motor either way I would doubt you would be disapionted Just do some math to make sure you purchase the righ KV for your goals...

Heath

[Unsullied_Spy]

OK, Thanks. Does the Feigao have the same splines on the shaft as the Losi motor or do I need to do something else as far as the pinion?

[Pdelcast]

Originally Posted by Byte

+1 for the Quark 22A!

Size: 33.5 x 25 x 6 mm

This should fit, right?

Hmmm, well the Sidewinder Micro is 35mm x 23mm x 6mm. So how is the Quark smaller?

[The Cow]

Originally Posted by Unsullied_Spy

OK, Thanks. Does the Feigao have the same splines on the shaft as the Losi motor or do I need to do something else as far as the pinion?

Been quite some time however I seem to remember using a jewelery engraver to make splines ;)

Heath

[Unsullied_Spy]

That's interesting, but I don't have one. Could I drill out the pinion to the size of the shaft on the motor and glue it on?

[The Cow]

Originally Posted by Unsullied_Spy

That's interesting, but I don't have one. Could I drill out the pinion to the size of the shaft on the motor and glue it on?

Could you?.... Sure but I dont think it would be a good idea in the long run considering future broken gears/adjustments/tuning etc...Assuming you tap the hole to the right size you could esily add diagnal(45degree)splines with a small micro file

By the way the quark while a good ESC IMO the mamba is the only choice here due to the tunability

Heath

[Unsullied_Spy]

Joe Ford says he glues all his pinions on with red loctite (a theory I'll be testing later with another RC). I could try to file the shaft, sounds like a lot of work though.

Right now it's either the mini Sidewinder or the Tekin Mini Rage. I'd like to see Castle modify the Sidewinder to fit the Micros better (basically just dump some FETs, use a smaller capacitor, and smaller wire).

Originally Posted by Unsullied_Spy

Joe Ford says he glues all his pinions on with red loctite (a theory I'll be testing later with another RC). I could try to file the shaft, sounds like a lot of work though.

Right now it's either the mini Sidewinder or the Tekin Mini Rage. I'd like to see Castle modify the Sidewinder to fit the Micros better (basically just dump some FETs, use a smaller capacitor, and smaller wire).

Hell, ever since I put red loctite on that damn grub screw on my Flux pinion, that little bastard hasn't given a hint of coming loose. And when are gonna get your loosing streak Cat ass up here for some bashing?

[The Cow]

If that is what Joe reccomends I am inclined to listen

Heath