Servo Swap & BEC Install! - Traxxas TRX-4 Sport Full Upgrade Project Truck Part 2 | RC Driver

49,478

920 0

Published 2020-02-05

Our project continues, this time with parts that I think will improve anyone’s experience with the Traxxas TRX-4 line of trucks. The ready to runs come with a good servo to get you going, in fact it’s still a used servo in one of our TRX-4 daily driver trucks. But you will probably reach a point when you start to master your truck where you’ll want more steering power. That’s when you’ll want to grab a new servo for your rig. Traxxas has high-torque servo options in their line-up for those who want to plug in and play with genuine Traxxas parts. In this video we’ll show you some of the steps required to install their High-Torque 400 servo and a BEC to supply the power needed to get optimum servo performance. We’ll show you a servo horn/arm upgrade too!

NOTE: I may have gone too basic on the BEC explanation. The BEC uses power directly from the battery to supply a higher voltage to the receiver. The ESC is supplying approximately 6.0V to the receiver which will power any modern servo you install. To get maximum performance, installing a BEC will bump the voltage up to approximately 7.4V to power high-voltage servos. Do not try to power a 6.0V servo with a higher voltage, the servo may burn out. Also I call the servo horn a servo arm in the video, the more appropriate name is “servo horn” I apologize for any confusion.

PRODUCT FEATURED
TRX-4 Sport
By: Traxxas
Part Number: 82024-4
Price: $359.99
Buy: snp.link/469150dc
Visit Traxxas: traxxas.com/

PARTS USED
High-Torque 400 Servo, 2255- snp.link/32819625
Servo Horn, 8247X- snp.link/f81454c7
BEC Assembly, 2260- snp.link/a6d62ecc
Receiver Box Top Option, 8224X- traxxas.com/products/parts/8224X

Project Traxxas TRX-4 Sport Intro Video- • So Many Option Parts! - Traxxas TRX-4...
Project Traxxas TRX-4 Sport Build Part 1- • The Build Has Begun! - Traxxas TRX-4 ...
Project Traxxas TRX-4 Sport Build Part 2- You’re Watching It :-)

Don’t Miss A Thing! Follow Us:
Subscribe: bit.ly/SubToRCD
Website: bit.ly/VisitRCD
RC DRIVER SHIRTS & MERCH: teespring.com/stores/rc-drive...

*Notice: Some of our articles, videos and descriptions may contain affiliate links or coupon codes, which means that if you click on or use one of the product links/ codes, we may receive a small commission. This helps support the website and social media channels and allows us to continue to produce content. Thank you for the support!

#Traxxas #RCCars #RCDriver

All Comments (21)

@ericwerner3163 4 years ago

1 to turn, 2 to burn, that's how I remember the ports.
@douglaselliott8298 4 years ago

IMO the most pragmatic and instantly noticeable improvement one can make to a TRX-4 (or TRX-6) is a steering servo upgrade. The next would be stainless steel skid plates for the pumpkins and center chassis if you regularly play in the rocks. Frequent rock crawling can grind clear through those pumpkins in about 100 hours. I know this from experience.
@jmgypsum 4 years ago

I've always loved the term "one is for turn two is for burn"
@barharborbasher249 4 years ago

The trx is such a great rig! Nice upgrades 🙌 the way I remember is “one to turn two to burn” 😁🤘
@youraveragecoop5633 4 years ago

Lots of fun Greg!
@ar-arnitro 4 years ago

Nice upgrades👍
@JoeOvercoat 3 years ago

Just a note about 7.4V - many mini servos cannot handle over 6V (even some standard servos). I have run Traxxas 2075s at 7.4V, to great effect, but 2065s might be a different matter.
@graymatter45 4 years ago

1To turn , 2to burn
@SternLX 4 years ago

Just wanted to point out you won't need an external BEC if the ESC you use has an adjustable internal BEC. Like the Castle Mamba X for example.
@cwatson42785 4 years ago

Hey greg are you gonna be getting that new redcat kaiju? I'm guessing yes cause you seem to have a good relationship with them. It looks really nice!
@P_double_H 2 years ago

Wait Wait Wait... maybe I'm missing something here. If the Steering servo is the one who needs more power why are we feeding the speed controller instead? Or, does this BEC system feed the whole receiver through the speed controller lead, and everything connected to the receiver gets benefited (including the steering servo) from it?
@antoniofajardophotography 3 years ago

hey can i use a traxxas bec and use a non trax servo? im new at this and looking to upgrade servos..
@swhalstead 4 years ago

You definitely need the taller receiver box cover for the 2-speed/locking diff models. There’s not much room in there as-is.
@joevasquez1776 4 years ago

Great video. Just my first thought 💭 “reward Traxxas with more money, by buying a replacement servo for the insultingly weak servo...”
@BigWillieFPV 3 months ago

What voltage output does the BEC supply? Also, I thought the Traxxas receiver was only rated to 6 V.
@maciekm.4169 1 year ago

Is it still ok if i would use this servo @ 6.0V?
@Cranklotus 3 months ago

How would you use this in an axial scx10.3 with a hobbywing fusion pro esc/motor?
@thedarklordsknigh 4 years ago

I want to do a custom build and was wondering if my E-Maxx would be a good truck or should I up grade to the X-maxx or the new Maxx
@MrYessireebob 4 years ago

1 to turn 2 to burn
@grandwaha 4 years ago

What would I do since I have the Blazer factory 8038 body light kit hooked into the ESC. Should I be an running alternate battery? Or splicing in somehow?