Meatball Racing

Radio Control Blog

1:1 Scale Electric Car

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When I was getting back into R/C for the 2nd time, circa 2003, I made a conscious choice between getting an HPI Super Nitro Rally and the HPI RS4 (electric) Rally. The music of 18,000 RPMs sounded like a ton of fun, but in the back of my head, it just wasn’t worth it. Smelling like nitro fuel, tuning the engine for the weather, proper maintenance and storage were just a few reasons. Plus all my previous experience was electric.

At the end of 2020 I donated my Subaru WRX to Newgate School. It was feeling its age and had several gremlins that I didn’t want to deal with: a fuel filler neck that wouldn’t refuel at full speed, an undiagnosed misfire on cylinder #1, and a slipping clutch. Like my decision to bypass nitro, the time was right to give up the rumbly EJ motor sound for the whir of a 200HP electric motor.

Introducing the official Meatball Racing vehicle: Chevy Bolt

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Off-Road Racing in Houston

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Every year my family travels out of the frozen wasteland of Minnesota to Texas, usually around Thanksgiving. If flights are cheap, we’ll fly down. If not, the road-trip is on! I personally like the road trip because it means I can bring some extras along which usually means my bicycle and a couple of RC cars.

Since we’d be driving through Dallas on US-75, we stopped at Traxxas HQ in McKinney.

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Spec Slash Parts & Settings

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After a full year of my son and I racing our 2wd Slashes in the “Spec Slash” class, I wanted to record everything we’ve broken, fixed, upgraded, and replaced. I’ll also include a setup sheet of what we landed on being a fairly consistent indoor off-road carpet track setup.

Spec Slash rules differ by track, so check with your local track(s) before you buy anything. Some allow replacing stock plastic parts  with RPM brand replacements, some do not. If you race at multiple tracks, better to error on the side of caution and stick with stock parts. I’ve included both parts here for reference.

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Slash 4×4 Crawler (Part 3) Powertrain & Tires

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With the width of the vehicle worked out, it is time to make it drive like a crawler.

To slow the Slash down to believable crawler speed I actually kept the stock gearing in place (19.23 Final Drive Ratio for the brushed 4×4). Then I added a RC4WD 1:3 Gear Reducer, which would change the final drive ratio to almost 60:1 – a popular ratio amongst crawlers and close to the TRX-4 low-speed setting.

The gear reducer is normally a bolt on part, but there were some tweaks I had to do to get it to fit the Titan 550 motor. First the receiver hole in the gear reducer is too small fo the 550’s standard 13mm bearing enclosure (the part that sticks out right before the motor shaft). Which is strange because the age-old Tamiya 540 motor also specifies 13mm for this part of the motor.

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Solar Charging Setup

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There’s a place I like to race at in St. Peter, MN called Shamrock RC Raceway. It’s an interesting setup because it’s a turf track set up outdoors in a hockey rink that would otherwise go unused in the summer. Rather than bring an insane extension cord to power my charger from the park restroom, I wanted to come up with a more portable (and green) charging solution.

So I put together this simple solar charging setup:

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Best First R/C Car for Kids

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My son and I got 2wd Slash trucks for his birthday and Father’s Day respectively. Since my daughter is left-handed, I would occasionally swap out the radio for the left-handed Arrma ATX-300, put the ESC in “Training Mode” (50% speed) and let ‘er rip.

Swapping out the radio was getting old. Plus one time I left the ESC in training mode when I hit the track. You can imagine my surprise when I’m getting passed in the back straight like I’m standing still, wondering where all the power went 😵

Something Smaller

Why not get her a car/truck of her own? Something smaller and better suited to a 5 year-old. [Read more…]