Electric NewB please help --

[LosiXXX-NTRacer]

ok i am new to electric cars. I have always had nitro. anyway I know nothing about armatures or brushes etc. I would like to know if this motor would be good for me an give me good speed with a decent run time. Its the Trinity P2k2 stock motor shown HERE (http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXAVJ1&P=0) Its a 27 turn motor and I plan on using it with a ESc that i capable down to 15 turns... will this be ok? I am not planning on racing just kinda driving it around the house , but I would still like it to be fast. Thanks for the help. -J

[BrentK7]

looks like we are in the same boat man, i was a long time nitro driver and just recently switched to electric. I will be watching your thread here to try and learn something.

[slodsm]

Im with ya, I have driven Nitro forever, recently got a XXX Kinwald but don't know a whole lot about it. I would love to learn more. Like for instance, do I have to run shocty (or whatever they are called) diodes on a stock motor Green Machine 3 with aV12XC fwd only esc and no motor limit? Also, what happens if you don't, and what is the purpose of a capacitor and is that required as well.

[MachWon]

Even though you didn't say what car it was going in, I'd say that's a fine choice. Not only will your ESC handle it easily but if you decide to race it should work as well.

If you are really on a budget though, you might look for some of those hand-out stock motors at your local hobby shop. I've had several ppl tell me they are nice motors for 19-25 bucks.

Either way, get some motor spray...

OH.. also, the capacitors are built into the P2k2 and are to reduce radio interference.

Schottky diodes are not necessary on all speed controlers. Your manual should tell you. If needed, they are supposed to provide more consistent braking, more efficient motor operation and allow cooler operation of electronic speed control. (NO REVERSE contollers only)


HTH :)

[LosiXXX-NTRacer]

thanx for the info...... I am putting it in a TC3, as far as LHS hand outs.....I wouln't trust anything from my LHS as far as I could throw that mutha F*cka :D seriously Rider's is a good shop but the one in Ypsilanti sux, I dont think they kno there heads froma hole in the ground... they never have what I need etc. so I rely on the www like tower or stormer now.

BTW that p2k2 is only 24.99 not a bad deal i guess.

[tlane77]

I just bought an ESC for my TA03 and the motor is stock. I was gonna solder the capacitors onto the motor, but, there is only two leads on the outside of the motor. Do I solder them onto the leads at the "can" or should I look into this motor also? The ESC is rated for down to 18 turns.

[MachWon]

The math is pretty easy.. just about any ESC will handle a 27 turn motor. 18 would be a mild modified motor and the lowest you should probably try in it.

As I understand it, if your motor doesn't have caps built in, three are required. One cap soldered to the neg tab and then to the can, one soldred to the positive tab and the can and one between the positive and negative tabs.

I'm sure someone has a link to a tutorial of sorts...guys?

[End Overend]

The P2K2 is a good stock class motor. Running with a 15 turn ESC will be fine and shouldn't cause any problems at all, while keeping the ESC cool.

Speed wise you are going to be in the low 20's with the P2K2 and may get into the mid's 20's with tall gearing. If you were to drop down to a 15 turn motor that your ESC can handle you could get the speed up into the upper 20's or lower 30's range. A Trinity Speed Gem 2 would make a nice motor for your purpose and they are generally around $30.00 - $35.00.

Run time with a 2400 mAh battery should be in the 12-15 minute range under most conditions and could be extended if you are running 3000 - 3300 NiMh's expect that to go up.

As for cap's on the motor. Check the motor out when you purchase it, if it comes with the cap's in the box with the motor then you will need to solder them to the motor. It's really easy to do. Remember some motors alread come with the cap's installed in the endbell, such as the P2K2. If they are pre-installed it will generally tell you on the package or instructions when you purchase the motor.

There should be a small post on the screws that hold the motor together (if there isn't you can solder them to the can, but then you won't be able to take it apart).

Basically you take one capicator and solder one end to the negative post and the other end to the center post. Then take another capicator and solder one end to the positive post and the other end to the center post. Then take the third capicator and solder one end to the positive post and the other end to the negative post. The capicators are unidirectional so it doesn't matter which lead you start with when soldering them to the motor.

Some motors will come with a diagram, others will refer you to the manual on your ESC.

The Shotzky (spelling) diode is only used on a forward/brake ESC and is not to be used with an ESC that has reverse. This is directional and should be soldered according to a hopefully supplied diagram.

[LosiXXX-NTRacer]

Hey bro, Thank you much for the needed info, I didnt even know how to install the caps or anything. :D --J