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Old 01-27-2005, 03:45 PM   #1
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Default Acceptable servo speed and torque?(steering)

Hey guys, i've been spending the winter toying with my car getting it ready for next summer, and while it's apart i'd like to put a better steering servo in place of the jr (whatever comes with a cheap radio), forgot the numbers offhand but it's like a 12 dollar servo, so...
I'm no professional, nor do i plan on it, and i'm not looking to spend anymore than 50 bucks.

Brand doesn't matter to me.
Could someone just point me in the right direction of what speed is acceptable, and torque rating?
I've read other servo posts, and seems everyone suggests 90-130 dollar servos, and unless one of you guys is going to sell me a $100 servo at 50, it's not happening.

Mediocre is what i'm looking for.
Reputable person told my buddy to use a hitec 645mg, but when comparing speeds on servo charts, numbers suggest it's slower than 3/4's of the other servos on the market including ones that are much cheaper, it seems to have more torque but is that what i want, more torque less speed?

I was leaning towards the 625mg which has more speed than the 645 and less torque.

So what does everyone think?
For reference i've been using this chart http://www.fatlion.com/sailplanes/servochart.html
thanks
Car i use is in my sig, on a pretty fast outdoor track
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Old 01-27-2005, 03:52 PM   #2
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Try the JR z590. Good price, numbers, and performance.
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Old 01-27-2005, 03:55 PM   #3
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Don't buy Hitec servos, they have a lot of trouble centering.
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Old 01-27-2005, 03:57 PM   #4
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the jr z590 has similar statistics to the 625mg, does it have metal gears and should i look for mg? I'm not sure i need them, i've never broken anything servo related even with the cheapos.
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Old 01-27-2005, 04:01 PM   #5
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Yes, its metal geared. I use one in my 1/8th scale and my nitro sedan too and its a good budget servo.
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Old 01-27-2005, 04:08 PM   #6
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Speedo- actually Hitec servos are great servos. The digital ones are great. Its the non-digital ones that have problems some times. Overall Hitec is good. I would recomens an Airtronics servo or a KO servo. Expensive but well worth the money
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Old 01-27-2005, 04:18 PM   #7
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I've checked ko pricing, and seems their cheapest is still double what i want to spend.
I'll look through the airtronics stuff, any suggestions?
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Old 01-27-2005, 04:54 PM   #8
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Remember, you get what you pay for... You want a budget price you'll get the same in performance....
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Old 01-27-2005, 05:01 PM   #9
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I've been using the one that comes free with the radio, a z270, so why would a 50 dollar servo be worse than that? I don't have to replace it, i choose to replace it.

So if i get what i pay for and i pay 50 bucks, that should be 60% better than the one i have, so i can live with getting what i pay for.

This is a budgeted hobby for me, i have no intentions on going all out.
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Old 01-27-2005, 05:12 PM   #10
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So... Keep what you have... If you're only mildly upgrading the servo, then why bother???? Use the money for some spare tires or something....
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Old 01-27-2005, 05:25 PM   #11
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Well, you may have a point, but the torque and transit time are about 25% better on the servos i'm looking at.
Do you think that's enough reason to make a change? Besides the fact that it feels like my original has a bit of play in it, although it works fine.
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Old 01-27-2005, 05:27 PM   #12
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Quote:
Originally posted by TL_XXX-S_racer
Speedo- actually Hitec servos are great servos. The digital ones are great. Its the non-digital ones that have problems some times. Overall Hitec is good. I would recomens an Airtronics servo or a KO servo. Expensive but well worth the money
$50 won't buy him a digital servo though.
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Old 01-27-2005, 05:49 PM   #13
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I think $55 would though. I think that's what I paid for my Hitec 5625.
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Old 01-27-2005, 06:01 PM   #14
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My new personal favorite is Futaba 9550 the half ass servo little more pricey than $50 usually run around $75 check servocity.com they have a great selection and prices.
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Old 01-27-2005, 06:06 PM   #15
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I use the S9451's, very pleased and they're smaller than standard servo's... We all know room for electronics is getting smaller....
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