MMM getting HOT!

[Jahay]

i dont really want to reply on an additional fan to keep my temps low on my motor... It shouldnt be a cure for hot motors but ill have to see... I may just lower my gearing and see how it runs... I just want reliable bashable fun rather than worrying about that poof of smoke coming from the ESC....

[BrianG]

A hot motor could be caused by gearing that is too low too. If you are maxing out the throttle a lot (winding the motor out for long periods), then it will get warm/hot.

But if geared "right" a decent motor that runs hot could mean partial rotor demagnification.

[Jahay]

neil.. thanks for taking your time to explain this to me... It really has put things in perspective... I tried doing my reading and asking people what would be an ideal motor that would meet my expectations. I guess i am pushing it a little too high.
I was originally wanting to go for the 1518 but due to having no motor at the time and no 1518 in stock anywhere... i went for the 1520.
I have a few gearing options... I will chuck my 17t clutch bell in there first... with the rc calculator it will bring the top speed down from 75mph (very unrealistic, i wasnt even aiming for these speeds) to 60mph... if its still running too hot. I will take out the the high speed idler gear and put the stock one back in and run the 21t pinion which should gear me for around 50-55mph... I will just watch my temps and gear accordingly.

I am going to work out a way to try and cut weight on my truck... At the moment its only weighing 1 ounce heavier over stock. each wheel is 10gram heavier and the tvps weigh only very slightly over stock. Thats the only weight i have added. (maybe the motor too)

Anyway i really appreciate your help! I will get back to you and tell you what happens.

THANKS!

[suicideneil]

Hmm, I thought it was heavier than that, but anything you can do to save weight is always a plus, regardless. I tend not to follow all my own advice though; my tyres weight 1lb each on my TXT-1 , but I have gone to lighter ones for my Gmaxx- have yet to see how that performs though.

[Jahay]

neil i weighed the truck today... and with my wheels and tires and depending on what batteries i am using the weight is 13.1- 14.2lbs.

THAT IS LIGHT FOR A LARGE TRUCK!!! BUT at its heaviest with the large wheels, and large batteries and heavy body... it reaches 17lbs.

I will keep you updated on how it runs with the 17t clutchbell.. .I hope it doesnt cause any more heat problems.