Steering Servo?

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Old 08-19-2009, 06:26 PM
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Default Steering Servo?

I am going to try indoor carpet sedan this winter, I am pretty sure I have settled on a TC5R for a car, but haven't bought it yet.

My question is will my Hitec 7955tg from my 1/8th scale work for a steering servo - or is it to heavy and/or strong and/or slow? If it is not ideal - which servo should I buy? I do like Hitec.

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Old 08-19-2009, 07:21 PM
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KO propo 2413ICS or Futaba S9551 the futaba is what i use and love it plus its only $80

both can be found at www.nexusracing.com

thats a big ol heavy servo for 1/8th off road...

Alex
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Old 08-19-2009, 07:47 PM
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It would be perfectly fine for the time being. Although, as you become more acclimated with your TC5R a faster servo might be desired.

KO propo has a few good choices, and even a compact and lightweight servo (PDS-2413). If you don't really want a low profile servo the PDS-2343 is a little cheaper with similar performance, and the PDS-2367 is probably the ultimate touring car servo that KO Propo has to offer. All these servos I have suggested are a little faster than the hitec servo you would currently be using, and have less torque.

Check out http://www.kopropo.com for more products and information

-Korey
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Old 08-19-2009, 07:50 PM
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Orion 68003 -091 servo. Low profile, fast, light and with good torque
Futaba S9551 (same as above)
Futaba BLS551 brushless.

All will be quite good for an electric on-road car.
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Old 08-19-2009, 07:57 PM
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very good deal ona very good servo here:

http://www.rctech.net/forum/r-c-item...08s-110oz.html

Alex
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Old 08-20-2009, 10:51 AM
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The hitec servo you posted is really slow for 1/10 steering servo. You need something closer to the .10 sec for your transition time.

If you want to stick with Hitec look for 6975 (144oz, .10sec), or the ultimate steering servo Hitec 7940 (180oz, .07sec At 6.0V) But you can also run it at 7.4V for even better performance.


Shawn.
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Old 08-20-2009, 11:12 AM
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Originally Posted by Shawn68z View Post
The hitec servo you posted is really slow for 1/10 steering servo. You need something closer to the .10 sec for your transition time.

If you want to stick with Hitec look for 6975 (144oz, .10sec), or the ultimate steering servo Hitec 7940 (180oz, .07sec At 6.0V) But you can also run it at 7.4V for even better performance.


Shawn.
Actually, the JR DS8915 has better spec, same speed [email protected] but 12kg*cm of torque which is higher than the Hitec. It is more expensive, but it is top quality. I am not sure ont he other hand why it is not very popular with car racing, I found it indeed the best in every aspect (reliability especially is a weak point for Hitecs).

There is an even faster JR servo ([email protected]), the DS9100. But that is a gyro controlled servo for the tail rotor in helis so it doesn't have the torque, doesn't like more than 4.8V and it is going to be twitchy for a car. Plus it may be hunting if the response is not turned down (i.e. at zero dead band) which will defeat the purpose of having fast response.
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Old 08-20-2009, 11:23 AM
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i use sanwa erg-wrx and futaba 9551 all rounder for both ep and gp buy versatile tool and enjoy it at any level. thats from my point of view
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Old 08-20-2009, 04:51 PM
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I am thinking the Hitec 7940TH will be the servo I choose.

Thanks for all the help,
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