information on kb45 motors?

[scarletboa]

wouldn't tightening the set screw all the way be sufficient for locking it in first?

[lincpimp]

Originally Posted by scarletboa

wouldn't tightening the set screw all the way be sufficient for locking it in first?

You are not eliminating the function of the one way bearing that 1st gear rides on. Adjusting the set screw adjustment for second gear will only prevent it from shifting into 2nd gear. You need to have the 1st gear spur physically attached to the center shaft to lock the tranny. This will allow motor brakes and reverse.

To physically see this at work hold the spur gear with you had and try to roll the truck forwards, it should not move. Now try to roll it backwards, the one way bearing will allow it to roll backwards by releasing the 1st gear spur from the center shaft.

hpi p/n 100905 is the best and cheapest way to lock a savage into 1st. You will have to fool with the 2nd gear spur if you want it locked into 2nd though, no drop in parts for that yet... I bet that we could nig something up though...

[fastbaja5b]

Keep in mind when using that part the drive gears will wear out every 25-30 packs. Also it's not the easiest part to locate at the moment

[lincpimp]

Originally Posted by fastbaja5b

Keep in mind when using that part the drive gears will wear out every 25-30 packs. Also it's not the easiest part to locate at the moment

The full steel tranny wears out quickly? Sounds like some of that oil modifier would be good for that tranny. I may have to try that.

[scarletboa]

is there any way to prevent it from shifting into 2nd gear while at the same time, getting rid of the owb? or at least locking the owb?

[suicideneil]

Already been explained in post #17- you need to buy some parts, or bolt the gear to the hub, a la revo 2nd gear mod I imagine...

[littlegiant]

Will a KB45L 2300KV motor overheat on 4S lipo in a 4.3Kg e-savage? Assume that it is geared for slightly over 40mph (around 25T)

I have one new kb45 motor but I am not sure if I should just get a HW150A for use with it or should I get a MMM/CC Neu combo.

[_paralyzed_]

Originally Posted by littlegiant

Will a KB45L 2300KV motor overheat on 4S lipo in a 4.3Kg e-savage? Assume that it is geared for slightly over 40mph (around 25T)

I have one new kb45 motor but I am not sure if I should just get a HW150A for use with it or should I get a MMM/CC Neu combo.

It should be alright, but watch temps closely. I'd get the MMM to run the kb, and upgrade to a cc neu if the kb fails.

[littlegiant]

Some pictures of my KB45 L can 2300KV

The rotor looks pretty well made.

The shaft has been ground down to 5mm.

[scarletboa]

Originally Posted by littlegiant

Some pictures of my KB45 L can 2300KV

The rotor looks pretty well made.

The shaft has been ground down to 5mm.

how did you grind down the shaft?

[littlegiant]

Originally Posted by scarletboa

how did you grind down the shaft?

Ran the motor while filing it.

[sikeston34m]

Originally Posted by littlegiant

Some pictures of my KB45 L can 2300KV

The rotor looks pretty well made.

The shaft has been ground down to 5mm.

Did you simply unscrew the front endbell?

How tough was that?

[aqwut]

you just put 2 screw through it and use a channel lock to turn it....

I have to say, the best Cheap motor would be the KB45XL motors... I really did enjoy bashing those motors.. And they are POWERFUL.. efficient..?. that's another thing...

I think Maytech makes the KB line of motors... From my testing, they seem to like 25K rpms...

[scarletboa]

my KB45-8XL separated the rotor from the shaft, so i ground down the shaft on my KB45-12L 1400kv motor and threw it on my savage. the run lasted about 6 inches as my EZrun 150a smoked itself....the only setting i changed on it was turning the LVC off. i was using a lipo monitor that plugged into the balance lead on the lipos, because the stock setting of 3.0v was too low. i had done it manually as i didn't have the program card at that point and i might have messed something up in the programming in the process of turning the lvc off.

BTW: i was running 2 3s packs in series.

[Nixpus]

Will be testing the KB45-08XL in a converted savage soonish... on 6 cells of course. 35k rpm sounds pretty reasonable.