Question: Hi Doc- I have a XTM X-Cellerator and the controls seem to work in the opposite direction than they should. Would you have any idea why? I appreciate any help you can provide. Thank …
Read More »Reversed Controls
Welcome to The RC Doctor, an area of CompetitionX dedicated to helping you diagnose and repair any RC car or truck problems. With over 20 years of RC experience, The RC Doctor provides expert advice on nearly all subjects related to RC cars and trucks. We can help you troubleshoot everything from faulty electronics to broken chassis/suspension parts and point you in the right direction on how to get it fixed. If you have an ailing RC, fill out the Ask The RC Doctor form on the right and let us help you diagnose your problem!
Recent Surgeries
Spektrum DX3C Losing Signal
Question: Hey Doctor- I have an issue with my relatively new Spektrum DX3C radio system’s reception range. I will drive maybe between 75 and 100 feet away and lose all reception. It sometimes cuts in …
Read More »Thunder Tiger MT4-G3 or Team Associated Rival – Which MT is for Me?
Question: Hi Doc- I have a question on Monster Trucks. I am trying to decide between the Team Associated Rival and the Thunder Tiger MT4-G3. I like speed and don’t crash a lot as I …
Read More »TLR Not the Leader of the Pack
Question: Hola el Doctor- I just started in RC cars not long ago. I’m trying to get the same edge as the SC10 drivers I see at the track. I’m getting tired of getting passed …
Read More »Franken-Futaba FP-T6NFK
Question: Hey Doc- I have an old Futaba FP-T6NFK Transmitter which is barely used (crashed on maiden flight), but I don’t have the charger and I am pretty sure the batteries are dead after 20 …
Read More »Fire-Breathing Traxxas Slash 4×4
Question: Hi Doc, I want to know if I can put any electric RC car motor in any rc car? More specifically I want to put the Castle Creations 0808 motor in the Traxxas 1/16 …
Read More »Slippery Savage Center Drive
Question: Hi Doc, I have a question about the drivetrain of my HPI Savage XS Flux. Sometimes when I am enjoying my drive, it is cut short by a weird issue involving the center driveline. …
Read More »Nitro Engines – The Three Needles
Question: Hi Doc, I have the GS Storm Unlimited Truck 1/8th scale with the blue R25MT rear exhaust engine. I have searched high and low and can’t find the answer anywhere regarding the correct carb …
Read More »Making the Smartech Speedy Tiger Speedier
Question: Hiya Doc, I have a Smartech Speedy Tiger and I’m looking to install a new engine in it. It gets really hot, especially when I drive it in grass. Can you tell me what’s …
Read More »Dual Rate Discovered
Question: Hey Doc, I am rebuilding a Kyosho Vanning buggy and regifting it to my 38 year old son – I originally gave it to him when he was 10. I have a question about …
Read More »Slashed my Slash Chassis
Question: Heya Doc, My son just purchased a Traxxas Slash 2WD VXL model and within 10 minutes of driving it the chassis broke in front of where the rear wheels attach. Now he wants to …
Read More »Runtime with my HPI Vorza
Question: Heya Doc, I have a HPI Vorza and was wondering how much run time I should get from 2 3S LiPo batteries. Also, can you tell me the difference between ProRace LiPo batteries and …
Read More »Misbehaving 26cc Engine
Question: Hey there Doc, When I’m out running my 26cc 5B Baja I’ve noticed that when the engine is hot and running near the top end (high revs) it seems to misfire alot. Any suggestions? …
Read More »Traxxas Not Reaching Its Summit
Question: Mr. Doc- I just bought a Traxxas Summit VXL from a guy and it only runs steadily for about 1 minute. After that, it will consistently lose acceleration, stopping throttle response altogether. It will, …
Read More »Brushless Motors – 2 Pole vs. 4 Pole
Question: What up, Doc- What is the advantage in a 1/10 Scale truck of 4 pole over 2 pole motor?? What is the difference technically between the two?? Bud Answer: Hey Bud. This is a …
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