<p>The torque in both versions would be the same.</p>

<p>Your first version just adds 3 of these gears:</p>

<p><a href="https://i.sstatic.net/3v8fBs.png"><img src="https://i.sstatic.net/3v8fBs.png" alt="gear 3648"></a></p>

<p>The ratio between them is 1:1 so it will be the same as if you connect the axle straight into those small gears, as you do in the second image.</p>

<p>(Well, technically speaking, having 3 more gears in the mix will sacrifice some power to friction, but the theory is the same.)</p>

<hr>

<p>Note, this answer assumes you aren't also running an axle through both these gears in your first image.</p>

<p><a href="https://i.sstatic.net/3v8fBs.png"><img src="https://i.sstatic.net/3v8fBs.png" alt="gear 3648"></a> <a href="https://i.sstatic.net/3auMds.png"><img src="https://i.sstatic.net/3auMds.png" alt="gear 3649"></a></p>

<p>If you are, then it simply will not work.</p>

CC BY-SA 3.0
2017-01-27T13:39:40.187Z
Thank you so much! That was exactly what I was looking for :)
Kimatuy
CC BY-SA 3.0
2017-01-26T19:59:41.423Z
2017-01-26T19:59:41.423Z
Alexander O'Mara
<p>I got a few XL power functions motors, and want to combine them to make a racing car. Let's get to right to the question: </p>

<p>Which one save the most torque power? This one...
<a href="https://i.sstatic.net/b3Hgd.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/b3Hgd.jpg" alt="enter image description here"></a></p>

<p>...or this one? </p>

<p><a href="https://i.sstatic.net/8amAu.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/8amAu.jpg" alt="enter image description here"></a></p>

<p>PS: It is okay if you warn me that even with three XL motors, the car won't work.</p>

<technic><motor><gears>
Which system is more efficient?
Kimatuy
# Which system is more efficient?

(Asked by: username_0 on 2017-01-26)

I got a few XL power functions motors, and want to combine them to make a racing car. Let's get to right to the question:

Which one save the most torque power? This one...
[![enter image description here](https://i.sstatic.net/b3Hgd.jpg)](https://i.sstatic.net/b3Hgd.jpg)

...or this one?

[![enter image description here](https://i.sstatic.net/8amAu.jpg)](https://i.sstatic.net/8amAu.jpg)

PS: It is okay if you warn me that even with three XL motors, the car won't work.

**Tags:** technic, motor, gears


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## 1 answers

### Answer by username_1 on 2017-01-26. Score: 5 | Accepted answer

The torque in both versions would be the same.

Your first version just adds 3 of these gears:

[![gear 3648](https://i.sstatic.net/3v8fBs.png)](https://i.sstatic.net/3v8fBs.png)

The ratio between them is 1:1 so it will be the same as if you connect the axle straight into those small gears, as you do in the second image.

(Well, technically speaking, having 3 more gears in the mix will sacrifice some power to friction, but the theory is the same.)

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Note, this answer assumes you aren't also running an axle through both these gears in your first image.

[![gear 3648](https://i.sstatic.net/3v8fBs.png)](https://i.sstatic.net/3v8fBs.png) [![gear 3649](https://i.sstatic.net/3auMds.png)](https://i.sstatic.net/3auMds.png)

If you are, then it simply will not work.

> **Comments:**
> **username_0**: Thank you so much! That was exactly what I was looking for :)  

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