Drift Car Motor Info Needed.

[WrenchHead]

Hey All; I am looking for some help with drift car motor needs.I want to get a new motor for my drift car project but I am more than a little confused:confused: .I understand all the lower the wind the faster the motor thing. But I have been shopping for a new motor and have found motors with as little as 11turns listed as drift motors and ones with as many as 35turns also listed as drift motors. I am a little confused by all the discrepency.A friend at the LHS gave me a handout motor from an Oval racer used only once for his race.He changes the brushes and the springs out for his race and gets a new one for every race for that little punch left in a new motor at the end of a run,He says.I installed the motor and a new 4200miAh battery.It is replacing a Trinity Monster of Touring motor that came with the car and an older 3300Nicd battery that I used to start drifting a week or 2 ago. That battery came out of my Traxxas EZ-Start.Now the car is easier to get the wheels spinning and they stay spinning longer.I do like more drift time but at the cost of motor and battery heat.Way to hot to touch the motor even with a heat sink attached.I changed the gearing from a 23t gear to a 21t gear but not sure if it is making a dent in the heat factor or not.I know living in SW Florida's heat and humidity is not doing me any favors.But if you can help,Please jump in with any info you might have that will help me find a solution.Later,Wrench:confused:

[hanomag]

Ok, I think you got some things to consider.

First, a good motor to drift would be like a 19T. This is the best thing you can get between speed and torque. Higher turn like 23, 27, 35 will help to get the wheel spinning but it will be slower. And the heat on the motor will be less. Don't forget that when a motor use more current and more amps like a mamba 7700, it will heat up very fast.

If you can go brusless, you can have more torque and speed at the same time.

Now for the heat part, I'm running a mamba max 7700 myself and I'm trying to get a high ratio on my car. TT-01 have an internal ratio of 2.6 . If I want my ratio to be high enough, I have to keep my pinion at 19 and my spur at 61. This way I get Spur divided by pinion multply by internal ratio (61 / 19 * 2.6 = 8.34) which is a good thing. The motor will be hot but it can stand that much heat. I tried a 58 spur and a 22 pinion but the motor was hotter than it is now with my 61 spur gear.

In the end you want to keep a high ratio like 8 or 9 and you would run a nice 19 turn motor. Dont worry about heat, these motor can stand the heat. If you have a temperature gun, you could have a better idea. If you get 135fahrenheit it would be ok. That's what I get with my mamba 7700.

Hope this will help.

[WrenchHead]

OK I am starting to get it.I have been into Nitro for too long I forgot alot of the electric info I had from years ago.I got a 19 turn mod hand out motor from a friend at the LHS. A regular cust. races paved oval and they only use these motors for 2 races and put in a new one.He gave me one and said to change out the sprint brushes for endurance brushed.I did that and then changed the pinion from a 23t to a 21t and after 3min 30 sec it was 175 degrees.Is that to hot for this motor? I live in SW Fla.You Know the back side of the sun.I have room for a 19t pinion on the TL-01.I ordered one yesterday off eBay.I am runnning a new 4200 miAh battery so I'm getting more run time out of it too.Thanks for the help.I also found alot of info on RCDRIFTCLUB.com that has helped me out quite a bit.Later,Wrench.

[hanomag]

Ok, it was pretty fast to get 175 degrees. Do you know your final ratio (spur/pinion * internal ratio)? Maybe it is not enough? Pinion 21 is ok but it depends on the spur now???

But don't worry about the temperature, if it stay at 175 degrees, it is ok! My mamba esc reach 207 degrees the other night. I was drifting on carpet and it was pretty hot. The motor was at 168 degrees. It is a bit high but again, if it is not broken after that, it wont stop. So basically, it is ok!

Try to change the set-up again and I'm pretty sure you will find a good compromise.

[WrenchHead]

Thanks for all the help I appreciate it.I have been running an old motor I had laying around.This new motor I got is a kicker.I also didn't take into account the type of tires I am running.The ABS ones I just got Spin up better but I can't get a full battery run without a heat issue.I put a 19t pinnion and a clip-on heat sink and some Tamiya Type D tires that nowmakes the run time last longer and not nearly as high a heat.I don't know the final gear ratio cause I don't know the gearing inside the chassis on the TL-01 and it has the high speed gears installed.Things seem to be going in the right direction I am having a total blast.Now I just need to get some more stick time so I can perfect my technic and style.If I stick with it I might buy a better drift specific type chassis.I have been looking at a Yokomo D-1 Drift Master.But I am also looking at a Tamiya TT-01D slightly cheeper.Thanks Again,Wrench.