Introduction and twin motor thoughts....

Evening all,

I have just stumbled across this site whilst searching for information on Brushless Truggy conversions, and I have to say it is a mine of information! I've got loads of past threads to catch up on, but I thought I would just ask about an idea I had at work today.

I have been toying with the idea of a Truggy conversion for a while now, and one of my thoughts was the possibility of using twin motors on a chassis, replacing the centre diff assembly (and possibly driveshafts too). I don't know if it has been done before, but has anyone ever seen a conversion that has a single motor powering the fron diff/axle and a single motor powering the rear diff/axle? The motors would be driven by two dedicated ESC's.

I was thinking that it might allow for some interesting tricks with the power split (and braking split) being easy to play around with. I'm not sure of any problems that may occur with this sort of set up, but has anyone ever seen this done, or perhaps has any thoughts on it at all?

Any input would be appreciated cheers!

Andy

[squeeforever]

Personally, I wouldn't do such a thing. It seems like there are to many variables to deal with. What I would do, if you really wanted dual BL motors, is get a motor mount/diff holder from BPP for there BPP LSP's. There is a version that is setup for 2 motors.

[BrianG]

First of all; Welcome to the forums!

You'll find that most people use "only" one brushless motor because that's all you really need. If you want more power, get a bigger motor. With two ESCs and motors, there might be a chance that they would run at different rates reducing efficiency. Plus, you'd need one heck of a battery setup to have enough of a discharge rating for two systems.

I'm sure it IS possible, just not sure if the end result would justify the expense and trouble.

agree with Brian. It will cost more, weigh more, won't work any better than a large single motor, and you will have no options on gearing (unless you devise a spur for each end). But if you'd do this, why bother removing the center diff? Having no clutch slip is tough the motor/geartrain also.

[MetalMan]

There is a guy on another forum who is doing this to a 1/8 buggy:
http://forums.radiocontrolzone.com/s...=182802&page=4
It is an interesting idea, and could work. One nice thing is that you lose the spur/pinion, so that's less drivetrain friction. And with two motors, it'd be a beast! Just waiting for him to do some more testing.

[Serum]

Single motor get's my vote; Reason is pretty simple, one motor will run more efficient, it will be lighter, and if you want more power, take more cells, or a bigger motor.

A Lehner 1950 for excample is capable of torsing out 6000 watts + (with the right batteries/controler ofcourse) this is an awfull lot of power..

This is not the biggest motor they produce.

dual setups might look intimidating, but single setups with equal power will outrun a single one.