Is 40k RPM too much for Neu?

[Thomas]

Hi there,

I've been reading about conversions and doing calculations for over a year, but now when it comes to ordering, I'd like to get some advice from experienced users.

I'm going to convert my TTR S3 to electric and have chosen 6s Kokam 2400 mAh 30C batteries. For the motor, I was set on the Tekin Neu 1509/2Y/f with 1820 kv. This will spin around 40k RPM on the straight, geared to go just a tad faster than the nitros (using truggy bevel gears).
But, Tekin is recommending this motor for 5s and the 1509/2.5Y with 1450 kv for 6s.

I'm now in doubt which motor is better for me. I thought the Neu motors could handle 40k RPM easily and since the 2Y needs less torque with the shorter gearing, should run cooler instead of hotter. I want sufficient power for racing and long run time (efficiency).

Which motor would you choose for 1/8 buggy on 6s, 1509/2Y or 1509/2.5Y, and why?

Thanks for your help.

Thomas