Posts Tagged ‘rc car tips’

Trust me, rc cars can go very fast. RC gas cars can accelerate from 0 – 60 mph in less than 2 seconds. But the hall of fame cars are all electric cars. So the best guess can be that electric RC Cars seem to dominate. On the other hand talking of racing over 30 to 60 minutes long, gas cars can consistently post the fastest lap speeds. R/C cars started in 1/8th Scale On-Road Gas class. And when it comes to pure performance, nothing beats the speed and realism of 1/8th scale on-road gas cars. They give speeds from Zero – to – sixty miles per hour (mph) in 1.5 seconds, at racing speeds of over 70 mph. And these are real speeds as captured by radar guns. For power, these cars use 3.5cc 2-stroke engines capable of producing 2 horsepower. Power is delivered via a 2-speed or 3-speed automatic transmission to a 2WD or 4WD full suspension chassis. Wide, low profile foam tires produce the grip needed to propel these machines to incredible speeds.

Traxxas Revo 3.3 Nitro RC trucks

Traxxas Revo 3.3 Nitro RTR truck

1/10th Scale Off-Road RC Electric rc Trucks are probably the most popular class. These cars (i.e. buggies, racing trucks, monster trucks) can be run on almost any type of surface. Dirt, dust, water, and jumps add to the fun. These cars also make use of the standard 540 electric motor. The main difference to on-road is the suspension system.

Long shock absorbers keep RC electric trucks stable over bumpy surfaces.

Spring Shock Absorbers

front shock absorbers

nitro rc car tires

Tires are also bigger, have deeper threads or spikes, and are made of rubber. 2WD is still the most popular class for off-road, although there are plenty of 4WD cars to choose from. Early electric rc cars and trucks were 1/12th scale run on-road. Today’s cars are run indoors and outdoors, on asphalt or on smooth carpet. These cars make use of 540 size electric motors, powered by 4 or 7 cell batteries. Pan chassis with direct drive transmission are the norm. Foam tires are used and lightweight Lexan bodies are used.

Because of its small size, 1/12th scale cars are lightweight, and have good power-to-weight ratio. 30+ mph speeds are achievable even with the basic Mabuchi stock motor. 1/10th Scale Gas Touring Cars are similar to electric touring cars, but with more power and 2-speed transmission. At 190mm, these cars are slightly narrower and smaller than the 200mm models. These cars are tamer in performance as compared to 1/8th scale on-road gas, but still capable of speeds in excess of 50mph.

Nitro gas RC car TC3 Plus RTR

nitro tc3 plus rtr

Performance at the track is similar to their electric counterparts. At twisty turns, electrics are usually faster. However, the 2-speed transmission allows gas touring cars to achieve higher top speeds. Some of these cars are Team Associated Nitro gas car TC3 and OFNA Nitro gas car LD3 RTR. These cars have an engine of Force .12 that gives a speed of 40 mph. 1/8th Scale Off-Road Nitro RC Trucks combine the speed and power of a 3.5cc engine with the fun of running in off-road conditions. These buggies need and use 4WD to transfer the power of the 3.5cc engines to the track. Sticky rubber tires provide the much-needed grip. HPI Savage 25 Nitro RC Monster Truck, Associated RC Monster GT Truck, HPI Nitro Savage 21 RTR RC Monster Truck, Tamiya Terra Crusher Nitro Gas RC Truck, 1/10 Traxxas Tmaxx , T-Maxx Nitro RC Truck and Traxxas Rustler are some of the 1/8th scale off road nitro rc gas trucks.



nitro rc car pistol type transmitternitro rc car stick type transmitter

The transmitter is what you hold in your hand. Your left hand is usually used to “squeeze” the trigger, which controls the speed of the car. The more you squeeze, the faster the car will go. If you want to stop or brake, push the trigger towards the opposite direction. Your right hand controls the “steering wheel” on the transmitter. This controls the direction of the car, whether to turn left, right, or just go straight. The stick type used two “sticks”. The left stick is used to control the speed of the car, and the right stick is used to steer the car.

  • The pistol type uses a “trigger” and a steering wheel. The trigger is used to control the speed of the car, the wheel to steer the car.
  • The transmitter needs a 12-volt supply to run, usually via eight AA sized batteries.


nitro rc car futaba 2 channel receiver

The receiver is a small rectangular device mounted on the car. It has a wire (usually 19”) that acts as an antenna to receive signals from the transmitter.
Gas cars need a 2-channel radio control system. 2-channel means that
there are 2 servos connected to the receiver. The receiver needs a 6-volt supply to run, usually via four AA sized

RC car tips:

  • Never, ever, cut the antenna wire. I know… the wire is long… but still, resist the temptation to cut it.
  • To avoid radio glitches, keep the receiver and antenna as far away as possible form the 2-stroke engine.

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A nitro rc gas car engine is a very nifty contraption composed of an array of parts that work hand in hand and mimics almost exactly a real car’s engine. What a sight to behold!

A nitro RC gas car uses a 2-stroke engine. This use specially blended fuel, and will not run
on regular gasoline.
There are two major sizes. There is the .12 size engine commonly used in 1/10th scale, and the bigger and more powerful .21 size engine commonly used in 1/8th scale.

Nitro rc car engine

Nitro rc gas car Engine Parts:
1. Air filter
2. Gears
3. Flywheel
4. Carburetor idle adjustment screw
5. Carburetor low-end adjustment screw
6. Heatsink
7. Pull-start mechanism

Air filter
The air filter is used to prevent dirt from entering and damaging the engine. For maximum power, it is important to clean, lubricate, and replace the air filter on a regular basis.

These gears are connected to the engine via a clutch system. The gears are used to transfer power from the engine to the transmission of the car.

Used in a bump start system and houses the clutch system. Carburetor Idle adjustment screw Rotating the screw clockwise or counter-clockwise increases or decreases the idling speed of the engine.

Carburetor Low-end adjustment screw
Rotating the screw clockwise or counter-clockwise makes the low-end mixture leaner or richer.

Carburetor Low-end adjustment screw
Rotating the screw clockwise or counter-clockwise makes the low-end mixture leaner or richer.
These engines are air-cooled. The heatsink is designed with “fins” to make the engine run cooler.
Pull-start mechanism
Used to start the engine, similar to a lawn mower.
Glow Plug
Similar in function to a spark plug.

…and thats about the basics of a nitro rc gas car engine. Hope you learned a lot.

Always ready to help,