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Old 03-15-2006, 02:21 PM   #1
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Default Offroad Servos...

Just thought I'd ask here...

I plan to run a XXX4 and before I go out and buy a new servo I found a JR Racing 4750 in my pitbox. Would this be a decent servo to run in offroad?

I know there are more expensive servos...digital, more torque/speed. But just wondering if this servo can handle the load placed on it in offroad. All my TC's use KO 2143's so I'm not familiar with this JR 4750.


Thanks.
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Old 03-15-2006, 02:51 PM   #2
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That servo would do the job, but for a 4wd i would recommend maybe using a servo with alittle more torque, but that depends on your driving and your wallet. I would use a Airtronics 94360 or 94357.

Hope this helps.
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Old 03-15-2006, 04:39 PM   #3
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The JR4750 will be just fine. The Airtronics ones just have a little more torque but are about equal on speed.

Later,
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Old 03-16-2006, 04:05 AM   #4
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Would Futaba 9550 servos be ok for 1/8th buggy?

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Old 03-16-2006, 04:11 AM   #5
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Old 03-19-2006, 04:43 PM   #6
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I run a 4750 in my B4 and it works awesome. It should be just fine for a XXX4
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Old 03-19-2006, 05:45 PM   #7
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I would give a JR 8800s a shot. I have one in a mf2 and it works awesome. The airtronics 94358 which i believe is 200 oz .1 speed would be the best for the xxx4.
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Old 03-19-2006, 08:35 PM   #8
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If your going with an expensive Airtronics get the 94357 not the 94358, you don't need 200oz-in of torque for 1/10th! Hell I ran an Airtronics standard servo in my B4 for a month and a half and it was enough, of course 4wd is going to need a bit more power though, so the 4750 will easily be enough, it could be a bit slow depending on your track conditions and your level of driving.
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Old 03-19-2006, 08:39 PM   #9
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Quote:
Originally Posted by Bundy_Bear
Would Futaba 9550 servos be ok for 1/8th buggy?

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Maybe for throttle, but not for steering.

*these are the low profile servos, correct?
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Old 03-20-2006, 02:10 AM   #10
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Quote:
Originally Posted by ChadCapece
Maybe for throttle, but not for steering.

*these are the low profile servos, correct?
yes the 9550 are low profile. can i ask why they are not suitable for steering?
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Old 03-20-2006, 09:10 AM   #11
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When I raced my XXX-4, I found that it needs the fastest servo you can find... I ran a Hitec 5925 .08 transit time and it felt pretty good. This is because of the way the steering links, servo horn, and bellcranks are setup: Your servo goes almost full throw to turn the wheels full-lock. This can make a normal servo feel slow and a pretty fast one feel not so fast.

The same servo in my new Lazer ZX-5 feels almost twice as fast because it only travels a little more than half throw to get full-lock. Even a .15 servo feels fast in this car. For racing with the XXX-4, I'd shoot for <.10 transit time.
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