I need a new servo, but which one???
 

Hi guys,

My servo is quite old and not in good shape anymore (Ive just realised that it was theone provided with my old Hitec radio purchased in... 2002 !), so I decided it was time for an upgrade.

I don't want to spend a lot there (30-50USD ?) but I would like decent quality.

I'm completely lost in the speed and torque values I see in the specs, so here is my question :
what would you recommend for a 4WD 1/10th buggy mainly used for hard bashing, and occasionally racing?

HITEC -7940th dont mind the price just buy it

:p

No, seriously, is this really worth 150 dollars?

Just to get a quick steering? :weird:

check the savox servos out. There are two models that are about $70. Both have metal gears. One is .07 transit time with about 140 oz/in of torque and the other is .08 with about 165 oz/in.

These are really impressive numbers for the money. Either one would get the job done for a 4wd buggy but as long as you're bashing I'd go with more torque

I would tempt to think that torque is more important than speed for me...

I'm not sure I'll feel the difference between 0.08 and 0.15s of transit time... :confused:

Huge difference in the speed. You'll notice it for sure.

I was more thinking about something like "Are my fingers quick enough to match such high speed servo?" :p :p :p

I've just add a look at the savok, they look really good for the price. :sneaky:

And they have a small heigth one that will help everything to fit in my lazer. :sneaky:

Yes, and yes .08 is noticeable compared to .15. Twice as fast...

That is a HUGE!!!!! difference in speed.

The savok servos are reasonably cheap and around 0.08s, so I'll maybe soon be able to tell you if that makes the difference for me.

I'm not sayiong it's useless, just a bit sceptical for my need as I've never had one. ;)

I understand that. for the price I don't think you can go wrong though. the other options that are even worth buying are gonna start at about $100. A servo that compares to the specs will be closer to $200.

mjk, I just picked up a Savox servo for the 2wd buggy I'm building (factory team B4.1). I got the "low profile" one (SC1251mg, I think). Would you happen to know how it should be setup on the buggy, as far as spacers, etc. go? It's not listed on the servo chart in the instruction manual, and it's been about 15 years since I built a car outta the box.

thanks, dvd

Sorry dvd. I dont know. A little trial and error may be necessary. I'm sure it wont take much to figure out.
I will look up the servo and see what I can figure out. Is it just shorter than most?

ok dvd. from what I see on their website it looks like it would just be a shorter servo. You'll want the threaded piece with the ball cups to be moving straight between the servo and the servo saver. So when you put the servo mounts on the servo and then mount them in the car take a look at it and determine whether or not you need the spacer in between the mount and the servo tabs to get the angle right. Once you have it right snap the ball bup on the servo saver first and then on the servo after it's in the car. It's easier this way. If you have the aluminum servo mounts put a tiny bit of blue locktite on the screws before putting it together. (just a little)

Thanks mjk. Installing the servo happens to be the next step in my build, so we'll give it a go and see what happens!