How to Run RC Cars at the Beach Without Destroying Them — Real Tips From Years of Sand Bashing
Alright, it's that time of year — summertime is coming, and one of my favorite things to do is go to the beach and drive RC cars. My wife and I try to go every weekend we can. It's our escape from the rest of the world, and honestly, one of the things we always do is bring the RC cars out there.
Now, it took me a while to figure out how to get the cars to run reliably on sand. I tried to make them sandproof, tried all kinds of stuff — and I realized the cars you run at the beach are probably gonna be a little uglier than the rest of your fleet. But you're gonna have more fun with them than any of the other cars you own. It's a trade-off.
Where We Run: San Luis Pass Sand Dunes
We usually go out to San Luis Pass because they have the sand dunes and it just makes it more fun. You've got a large stretch of sand from the water to the dunes — a good 50 yards plus, sometimes more depending on the tide. Most of those dunes you can drive your RC car right up into. It's sweet, man. It's just really sweet.
Dealing With Sand: The Brush Trick
The sand is always rough on them, so every three to five minutes you bring it back, bang it, flip it upside down, throw it back on the ground. Sometimes you gotta do that, sometimes you don't — it depends on the consistency of the sand.
Something I found that works really well is a brush — like a tire brush for your car, or some detailing brushes. That really gets in there and gets the sand out. Short of that, an air compressor is the best thing. Some of those dudes have air compressors on the back of their Jeeps — that would be awesome to blast it out right there on the beach. When you get home, blast it with an air compressor for sure.
Don't sleep on the brush, man. I saw this one dude, Matt Markarian, he had one stuck on a drill — like one of those plastic dish-cleaning brushes on a rod — and he'd just spin it up and brush the car off. It's genius.
Never Use Water — Here's What I Use Instead
A lot of people think "oh man, I'm gonna come home and just douse it with water." Dude, that's the last thing I would do. Water's gonna get places you don't see, and there's gonna be rust started before you know it.
I try to never introduce water unless it's absolutely necessary. Instead, I use a petrochemical-based cleaner — specifically, that Armor All foamy tire spray, the white foam stuff. It cleans it off and almost leaves a little coating. It's not a magic coating, but it helps keep the salt from deteriorating things as fast. If you have metal turnbuckles, they're gonna get rusty regardless, but this slows it down.
Motor Bearings — Replace Them Regularly
Here's one people miss: you gotta keep tabs on the motor bearings. If you go out there and run, even just a few times a year, you need to think about replacing your motor bearings. I'd say within every three beach trips, swap those bearings out. Same with wheel bearings — I know every so often I'm just gonna have to feed new wheel bearings and motor bearings into those cars. It's the cost of doing business at the beach.
Gear Down and Run Lower Voltage — Trust Me
Here's the real game-changer: if I'm running a 3S car, I'll run it on 2S instead. If I'm running an 1/5 scale monster truck or a big 8S truck, I'll run it on 6S instead of 8S. You know what happens? I don't break it. I have just as much fun — actually more fun — longer run time, and I can drive three sets of batteries instead of driving seven minutes and breaking some crap.
I also gear it down to make it run cooler. Running on the beach, everything runs hotter than normal. I'd rather have more success than worry about top speed. It took a while to figure this out. I used to go out there and break something within the first five minutes every single time.
Seal Your Tires — This Is Huge
So important, man — you have to tape up your tires and make sure they're super glued. Take the time before you go to the beach to give your tires attention. Get some alcohol, clean the inside of the rim where the little ventilation hole is, and tape it up or silicone it up. You do not want sand getting inside the tire. Once it goes in there, your day's over. That's like one of the top things that'll ruin your beach run.
Bring some extra CA glue too, because when sand gets in there, you're in a bad place.
Bring Spare Parts
The top things that will happen to you first: your spur gear is gonna go out. Things are running hotter, the sand loads everything harder, and the spur gear takes the hit. Just bring an extra spur gear and an extra shock. And if you're going out there with a car that's old and the motor's already on the edge — the beach is gonna push it over the edge.
The Golden Rules for Beach RC
Here's the quick version:
- Bring multiple batteries — charge everything the night before
- Don't go in the water — even that wet sand where the tide washes up and back, stay off it
- Seal your tires before you go — CA glue, tape the vent holes
- Gear down, run lower voltage — more fun, less breakage
- Use a brush or air compressor for cleanup — never water
- Armor All foamy tire spray for post-run protection
- Replace motor and wheel bearings every few beach trips
- Bring a spare spur gear and shocks
Now — all that being said — I typically do go in the water sometimes. Driving through that surf, slicking right on the edge of it? It's awesome fun. But I know the consequences, and certain cars become the ones you do the stuff you shouldn't do with. That's the trade-off, right?
Matt Keller is the owner of RC Hobby Pros in Katy, TX. We carry ARRMA, Axial, Losi, E-flite, Spektrum, HobbyZone, and more — everything you need for your next beach run. Stop by the shop or visit us online.
