brushless

i drag race 1/10 cars i run cobalt motors 10-24 cell's is their a brushless motor that will work in my application with no power lost run time is no factor just pure power

[RC-Monster Mike]

The only problem with brushless motors and drag racing is the fraction of a second delay from a dead start. In a drag race, the loser or winner is sometimes determined by these fractions, so it puts the brushless at a disadvantage. If you can work it into your takeoff technique, I am positive there is a brushless motor that would perform well.

[Sylvester]

so brushless reactes slower ?

[RC-Monster Mike]

There is about a 1/10 of a second delay from a standstill. Once in motion, there is no delays.

i can work around the delay i am looking at the XL it says 1200w my drag motors does not come close to that are the rated differently than brushed motors and how many cells can the XL hold do you have any motor recommendation that may work

[RC-Monster Mike]

The Xl motors have different cell count capabilities, based on the wind. They are rated for 1300 watts, but some have drawn in excess of 2000 watts under acceleration! The 10 cell motor would be different than the 24 cell motor for ideal performance. For 10 cells, the xl 5000 (probably even the basic 5300, depending on your vehicle's weight) would be pretty impressive. The smaller motors(basic) actually have the ability to spool up quicker, which would probably be to your advantage. The power is ample (a user on this forum has measured close to 2000 watts of output from a basic motor!).

so the basic 4200 is a good start four10 cells how about 18-24 cells soory for so many questions no nothing about brushless

[RC-Monster Mike]

For drag racing, it is fairly safe to push the envelope on cell count, since you are only running for a few seconds at a time. you could probably push the 5300 up to 12 cells for a short run and 10 cells would be no problem. For 24 cells, you could go with the xl2400 would probably be a good choice (or similar basic motor - 2100 or 2700 for short spurts).

thats the info i was waiting thanks, if you where me which motor wold you go with for all out power and what number of cells

[RC-Monster Mike]

I would have to see the car and the competition! The higher the voltage, the higher the efficiency (generally speaking). I would run a LiPo setup (minimize weight) most likely with a 3100 basic motor and around 6 cells (22.2 volts). This should be a rocket in a lightweight car. It is fast in an e-maxx! If it were me, I would also play around with a few motors to see what works the best for the track you run. Weight mey be helpful for traction in some cases, while on a higher bite track, the lighter weight will be quicker.

traction is no problem my car is 2 1/2 ponds with motor and elec with 18 cells and cobalt motor i run 1.68-1.78 at 70-75 mph on 132 ft rc drag strip I'm trying to cut down on maintenance after every round. (my car is in the pic gallery)

[RC-Monster Mike]

I have seen your car then! The 3100 on 6s Lipo (or 18 cells)should work well if you can work the timing.

thanks how about the feigao motors or wold you stay with the lehner motors for this application is the timing adjusted on the motor or speed control

[RC-Monster Mike]

The Feigao motors would work fine as well. I think the Lehner will work better, though. They have less rotating mass and a higher rated rpm capability. the timing is adjusted on the controller.

thanks for all your help