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Old 01-31-2009, 06:43 PM   #1
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Default Why motors are on the right side of shaft driven cars?

What explanation can you propose?

I know only one high level car with motor on the left - Barracuda.
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Old 01-31-2009, 10:34 PM   #2
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Unless you prefer the car go backward, otherwise, motor need to be on the right side. (or you can wire the motor in reverse if you prefer to have it on left side).
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Old 01-31-2009, 11:21 PM   #3
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Quote:
Originally Posted by Solara View Post
...or you can wire the motor in reverse if you prefer to have it on left side...
It is suitable for belt car but not for shaft.

The direction of motor rotation does not depend on the side of motor placement on shaft cars.

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Old 02-01-2009, 12:33 AM   #4
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Fail.
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Old 02-01-2009, 05:48 AM   #5
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the HPI E10 has the motor on the left. Look how bad that turned out
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Old 02-01-2009, 06:10 AM   #6
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I believe it has something to do with Torque twist. When reading about the TC3, before it come out, they (AE) talked about this, saying, the directional torque of the motor spinning would offset the directional torque of the shaft and diffs spinning. It was also to help torque steer, but I dont think that really ever had much effect on either. Ive had many of these (TC3,TC4) and they all suffered from this affliction. I still love the sound of a shaft drive though.....

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Old 02-01-2009, 02:51 PM   #7
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The motor also puts more weight on your right rear tire, which is the one you need planted most- since road racing is usually done clockwise.
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Old 02-01-2009, 04:10 PM   #8
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Quote:
Originally Posted by Solara View Post
Unless you prefer the car go backward, otherwise, motor need to be on the right side. (or you can wire the motor in reverse if you prefer to have it on left side).
Putting the motor on the left wouldnt do this. Pointing the pinion toward the front of the car would. But that could be remedied by putting the diffs on the other side of the shaft.

Dont ask me about torque twist though.
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Old 02-02-2009, 08:13 AM   #9
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My trusty (crusty?) Warpspeed Demon I and II TC3 conversion chassis carry the motor on the left. They didn't get MUCH more high-end than those...in their day.

As far as torque reaction, it would make no difference whether the motor was on the left or right. On the right side it's trying to climb the spur ("pulling" to the right), on the left side it's trying to force itself down the spur gear ("pushing" to the right) with exactly the same force.

Weight placement is the only difference I can see.

The old Hyperdrive belt drive conversion for pan cars used to put the motor shaft out the left side of the car since switching motor rotation isn't possible with fixed timing spec motors. That was (and still is) funky to pan car regulars as the only pan cars that ever have that characteristic are those that were converted to belt.
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