Looking for servo advice

[iaanr]

Hi all,

I recently picked up an XO-1 and love it, but I already have the bug to make some upgrades.

Could anyone recommend a nice fast servo? Also, Looking for details on how people are attaching the servo to the drag link. I suspect the stock servo horn is going to have the wrong spline count.

Any advice from those who have done this?

iaanr

[iMotion_Dung]

I picked up a Savox SC-1257TG Standard Digital "Super Speed" but haven't had a chance to instal it yet.

Specifications:

Speed @ 6.0V: 0.07 sec/60°
Torque @ 6.0V: 138 oz-in / 10 kg-cm
Weight: 52.4g
Bearing: Dual
Type: Standard
Gear: Titanium and Aluminum
Case: Aluminum Heatsink
Output Shaft: 25T Spline (Futaba)
Case Size (LxWxH): 40.3x20x37.2mm

Compared to
Stock Traxxas 2075
Specifications:
Speed @ 6.0V: 0.17
Torque @ 6.0V: 125 oz

http://www.amainhobbies.com/product_info.php/cPath/61_100_2167_2169/products_id/183315/n/Savox-SC-1257TG-Standard-Digital-Super-Speed-Titanium-Gear-Servo

http://c0456141.cdn.cloudfiles.rackspacecloud.com/images/medium/sav/savsc1257tg.jpg

[ducati777]

I think the Traxxas splines are same as Futaba... I've bought off name brands and they fit the traxxas parts just fine.

25 spline or something???

Anyway the stock 2075 is a decent servo, I think its 125 ish on torque, and maybe .18 on speed. Not too fast, but plenty strong.

If you're on a budget I can recommend a cheapo I've been using for a while in my race rig.

http://i15.photobucket.com/albums/a353/ducati777/RC%20Cars/IMG_0800.jpg

Spent a whopping 18 bucks on that badboy. I've had it for a while now and really like it.

[Spain]

Savox also have 25T splines, so the stock horn should work.

You may want to start with the stronger Traxxas 4945 black servo saver spring. Noticeable difference.

[lcaa]

Savox also have 25T splines, so the stock horn should work.

You may want to start with the stronger Traxxas 4945 black servo saver spring. Noticeable difference.

Hi Spain, would you might (or others:-)), to explain to me, why and what difference would it the black spring make?

Is this the same spring, which Traxxas recommends for the ERBE using metall gear servos (part#5344x, which is silver)?

I have mounted a servo saver i.e. on a RC8.2e buggy, but I still dont unerstand, the change it would do to the XO-1 during high speed runs...

Thanks!

[mattbaillie22]

I am big fan of Savox and have used the 1257tg in all my builds, they fit right into all the Traxxas horns I have used and I will be putting them on my XO-1's..


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I am here: http://maps.google.com/maps?ll=-27.470922,153.025265
Hello my name is Matt and i'm addicted to Traxxas.

[mattbaillie22]

If you want Savox servo pm me I bought mine for $55 a piece.


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I am here: http://maps.google.com/maps?ll=-27.470954,153.025233
Hello my name is Matt and i'm addicted to Traxxas.

[ducati777]

Hi Spain, would you might (or others:-)), to explain to me, why and what difference would it the black spring make?

The black spring is a stiffer spring, so the servo saver would be stiffer. If you've got a strong servo, it means the servo can exert more force on the wheels before the saver flexes.

I haven't tried the black one yet, my buddy put one in his XO...

I do think the saver has a hard time at high speed, if you like running around real fast a lot, its probably a worthwhile upgrade. I'm a don't fix it if it ain't broke kind of guy, so I'm in no hurry to replace working parts on a new car.

[iaanr]

Thanks for all the advice. After looking around, I am going to try a Futaba BLS451. Should be a modest improvement hopefully without overloading the internal bec.

SPEED: 0.10 sec/60 degrees at 6.0V
TORQUE: 10.6 kg-cm at 6.0 V (147.2 oz-in at 6.0 V)
SIZE: 40x20x36.8 mm (1.57x0.78x1.45 in)
Weight 58g (2.0 oz.)