Hacker Competition Carbon Motors?

[Craps]

Here is the link: www.hackerbrushless.com/motors_carbon.shtml

Any opinions or more information on these for racing in cars/trucks/buggies?

[Mr. Constructor]

i asked rainer hacker himself several months ago, the weight reduction will only be a few gramms, but these Motors do NOT dissipate the heat that good than the normal alu ones will, the strenght will also be little influenced (theme: popping of endbells) so the use in cars could only be done in small 10Th sedans where the stress isn´t that big, but the weight savings aren´t that high (around 5 gr. per Motor in the B 40 class)

So overall i went with the B 50 L series again to make my next 8th conversion.

[Craps]

So weight of the motor is the only advantage to running these?

I thought they may have more power or something special in the power band?

[Mr. Constructor]

not noticeable, the rpm will go up a around 10-20 Rpm under 8 V but that doesn´t matter either, the lack in the drivetrain will compensate that.

The Motor is not spinning up faster at all, they´re only lighter, but as the strenght isn´t any good for cars then i will not use them, esp. with that bad heat transfer !
You could use them in a 10th as there isn´t that much mechanical stress and thermal stress on the Motors, but thats all !!

[Craps]

I don't see an advantage due to the heat transfer issue and even in 1/10th scale heat is the enemy. So scratch that idea!