New hi-speed project

[BrianG]

About the amp draw: I won't be spinning the motor at ~55krpm all the time - just when I'm trying to hit really high speeds. For normal play, I'll be gearing down and/or using less voltage and/or using the EPA to limit motor speed.

Still not sure about whether to use two speed or not. But, I can decide that on-the-fly since the single speed/2 speed setups are interchangeable. I just have to remember to use mechanical brakes for the 2 speed. 2 speed would be easier on the motor since it won't have to pull such a tall gear on take-off, but the 1515 or 1521 are pretty powerful motors. My 1512/2d on 4s has no problems pushing my overgeared buggy to around 55mph, and I'm going to try to make this vehicle as light as possible.

For the motor mount, I will probably see what Mike has already and go from there - or make my own. Balance will be very important for something like this, so I have to really do my homework on device placement. The plan is to do a typical setup where the motor is on the steering servo side, battery on the other, ESC/Rx wherever it will fit. I'll probably leave the brake servo where it is, just pushed out to the side to allow room for the motor there.

Yeah, the yusa models are cheap, but I tend to break the same part so I don't want to have 5 chassis's laying around. How long have they been around? I don't want to buy myself into obsolescence.

[jhautz]

I just did a little part number research for the center dif uprights on the GTP. They are different than the Jammin center dif mounts so I dont know if the Jammin buggy motor mount will work. If you can give me center to center measurements on the center dif screw holes I can check it against the Jammin buggy motor moount I have in my DM1.

[Big House]

JHautz,

I did the same checking and cam up witht he same thing. I am hoping the OFNA online help comes on soon. I am going to see if the diff units are interchangible. If that is the case then the CRT mount will work.

[Big House]

Just checked with Ofna and the diff unit in there is the only one for that car. Hopfully Mike can come through with a mount for this one.