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Old 01-11-2020, 03:13 PM   #1
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Default Savox Servo Question

I have a Savox 1256tg servo that I can pull out of another truck to install into my TRX 4 Sport. I will be using SSD 1.9 steel wheels with pitbull Berserker 4.35" tires. The Savox puts out 277 oz of torque at 6v.

Is this enough torque for those wheels and tires?

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Old 01-11-2020, 03:29 PM   #2
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Default Re: Savox Servo Question

yeah itll turn them, but it would be better to have a servo around 400 oz/in or higher in my opinion.

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Old 01-11-2020, 04:03 PM   #3
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Default Re: Savox Servo Question

Quote:
Originally Posted by midwest_rippa View Post
yeah itll turn them, but it would be better to have a servo around 400 oz/in or higher in my opinion.

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It's only temporary until I can get a permanent servo for the trx4. The servo is coming out of my monster truck that is out of commission at the moment with a broken motor shaft. When I have the extra cash to get the servo, then the Savox is going back into the monster truck.

I just want to get the trx4 up and running.

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Old 01-11-2020, 04:47 PM   #4
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Default Re: Savox Servo Question

Midwest nailed it. It’ll get the truck up n runnin, but it’s a tad on the weak side.
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Old 01-11-2020, 04:58 PM   #5
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Default Re: Savox Servo Question

I'll look and see what is available in the 400 + ounce range. Can probably pick it up next month. My LHS sells Savox and hitec.. I'll probably go with the Savox as it has a 25t.

Do I need to use the aluminum Servo horn from Traxxas that came with the unassembled kit? I know that it's a 25t.

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Old 01-11-2020, 06:07 PM   #6
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Default Re: Savox Servo Question

Quote:
Originally Posted by MaX-D View Post
I'll look and see what is available in the 400 + ounce range. Can probably pick it up next month. My LHS sells Savox and hitec.. I'll probably go with the Savox as it has a 25t.

Do I need to use the aluminum Servo horn from Traxxas that came with the unassembled kit? I know that it's a 25t.

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You can use any brand horn you want. Just make sure it has the same number of teeth, and that the hole-to-hole length is the same. Personally, I always go with aluminum horns, and clamping whenever possible.

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Old 01-12-2020, 09:12 AM   #7
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Default Re: Savox Servo Question

I got to thinking this morning about the servo that is in my wraith that I never drive anymore. It's a Hitec HS 7950tg. 403oz @ 6v. I'll just have to get a longer Servo horn for it as the one that is in it is quite short.

I think The Wraith is going to lose its servo. LOL

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Old 01-12-2020, 09:56 AM   #8
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Default Re: Savox Servo Question

Hitec 7950 are great just remeber there not waterproof factory. I have a savox 1210sg in my trx4 with 1.9 ssd steel wheels and 4.19 inch rc4wd goodyear mtrs and it turns those all day no issue at 7.4 volts and that's making 400 oz plu at 7.4 amd waterproof
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Old 01-12-2020, 11:53 AM   #9
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Default Re: Savox Servo Question

Quote:
Originally Posted by 89lxmorepower View Post
Hitec 7950 are great just remeber there not waterproof factory. I have a savox 1210sg in my trx4 with 1.9 ssd steel wheels and 4.19 inch rc4wd goodyear mtrs and it turns those all day no issue at 7.4 volts and that's making 400 oz plu at 7.4 amd waterproof
Thanks for the heads up on the waterproofing. My truck will probably never see water, but you never know.

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Old 01-12-2020, 12:05 PM   #10
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Default Re: Savox Servo Question

Quote:
Originally Posted by 89lxmorepower View Post
Hitec 7950 are great just remeber there not waterproof factory. I have a savox 1210sg in my trx4 with 1.9 ssd steel wheels and 4.19 inch rc4wd goodyear mtrs and it turns those all day no issue at 7.4 volts and that's making 400 oz plu at 7.4 amd waterproof
I've always been curious about something though, does running a servo on 7.4v drain the battery any quicker than at 6v?

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Old 01-13-2020, 08:00 PM   #11
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Default Re: Savox Servo Question

Yes - you don't get something for nothing Now whether it is a noticeable difference in drive time... no clue!
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Old 01-13-2020, 08:44 PM   #12
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Default Re: Savox Servo Question

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Originally Posted by Icehawk View Post
Yes - you don't get something for nothing Now whether it is a noticeable difference in drive time... no clue!
Cool. Thank you

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Old 01-14-2020, 03:00 PM   #13
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Default Re: Savox Servo Question

Agreed, but buyer beware. Experience tells me a 300 oz Savox puts out more torque, longer and more reliably than a supposedly 400 or 500 oz cheapo brand. If you get my drift.



Quote:
Originally Posted by midwest_rippa View Post
yeah itll turn them, but it would be better to have a servo around 400 oz/in or higher in my opinion.

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Old 01-16-2020, 04:21 PM   #14
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Default Re: Savox Servo Question

Quote:
Originally Posted by Icehawk View Post
Yes - you don't get something for nothing Now whether it is a noticeable difference in drive time... no clue!
It would make sense that there would be a reduction in drive time. I would guess a difference of maybe 3-8 minutes depending how aggressive you are in your steering. Having your tires bound up large amounts during the run will pull a lot more current as compared to a flat hiking trail. My point is that the terrain and how you drive will change your run time more than your servo voltage even though it does contribute to the cause.
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Old 01-16-2020, 09:45 PM   #15
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Default Re: Savox Servo Question

Would it drain the battery faster? Run a crawler on a higher voltage you get longer run times. Run a servo on higher voltage you get less run time?

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