Pinewood Derby Car Guide (2024)

Pinewood Derby Car Guide (1)

Written by Carly Hallman

Driving a car has always brought with it a sense of freedom and adventure, and nowhere is this sensation more keenly experienced than on a race track. Unfortunately, racing does have its risks, and drivers must be of a certain age before they can even begin training to compete. Kids may play with toy cars, but until 1953, there was no child-friendly car racing environment. Today, kids across the world can experience the thrill of racing through a Pinewood Derby.

What is a Pinewood Derby?

The Pinewood Derby is a race, usually hosted by a Cub Scout Troop, in which members race their homemade pinewood race cars. Cars can be as fancy or as plain as desired and strict weight restrictions mean that the boys need to wisely distribute the weight allowed to help make the car faster. Each pinewood car is propelled by gravity down a steep wooden race track, racing two or three others at a time. The first car to reach the bottom is the winner.

Rules for Racing

Each Cub Scout Troop will have their own set of rules for Pinewood Derbies, but there are a few constants which appear in all races. The pinewood car, for example, can weigh no more than five ounces. It can be no longer than seven inches long and two and three-fourths of an inch wide. The bulk of the car itself must be constructed from a pre-approved kit, and anything to artificially assist speed – wheel bearings, lubricating oil, or springs – is strictly prohibited. Similarly, pre-constructed cars are not allowed, since it defeats the purpose of each scout creating their own.

Building a Pinewood Derby Car

The basic components of a Pinewood Derby car haven’t changed since the 1950s. A block of pinewood, four wheels, and four nails make up the starter kit, and many cars are made from these items alone. Coins, melted lead, and other metal weights can be added to the car, as long as the car doesn’t exceed the weight limit. The trick to building a car with a good chance of winning is to make the car as heavy as possible and to make sure that the wheel axles are straight, which will help reduce wobbles and bumps.

The construction of a Pinewood car begins with shaping the car’s body. Streamlined cars may have a better chance of winning the race, but prizes are given out for aesthetic as well. If a child already has their eye on a “dream car” for when they begin driving, why not make a small mock-up of that car for the race? Parents are encouraged to help their child with the car’s construction and decoration, but it must be the child’s own creation.

Wear appropriate safety equipment, like goggles or a dust mask, when working with the wood to prevent sawdust from irritating the eyes or lungs. Inserting the wheels is fairly straightforward, but be sure to check for little metal bits, or “burrs,” on the back of the axle. These burrs can be left behind from the manufacturing process, and they can also make the wheels catch, which will reduce the car’s speed. Once the car is complete, test runs can be a good way to troubleshoot any last-minute issues before race day.

What to Do on Race Day

Each pinewood car must be inspected and approved by a committee before it can compete, so before leaving for the race, double-check that the car meets all requirements. Once the car has been handed over for inspection, all that needs to be done is to sit back and enjoy the races. The officials will bring the various cars to the track and place them in position, and will record wins and losses. During the race portion, it’s important to remember to encourage scouts to display good sportsmanship. Cheering for friends’ cars can mean a more fun day for all involved, and more celebration if one of the cars wins. The end of the race day will conclude with the distribution of medals or trophies for the speed and style categories. Winners of the speed category are welcome to enter in the Pinewood Derby World Championship, and from there, the adventure can only continue!

Pinewood Derby Car Guide (2024)

FAQs

Pinewood Derby Car Guide? ›

1. Pinewood Derby Car Shape: The Wedge. The wedge is a classic and probably the easiest shape (besides keeping a block) to build your Pinewood Derby car. The Wedge is the foundation of many cool car designs, and it is designed to be aerodynamic and is a one-cut wonder.

What's the best shape for a Pinewood Derby car? ›

1. Pinewood Derby Car Shape: The Wedge. The wedge is a classic and probably the easiest shape (besides keeping a block) to build your Pinewood Derby car. The Wedge is the foundation of many cool car designs, and it is designed to be aerodynamic and is a one-cut wonder.

What is the most important thing to make Pinewood Derby car faster? ›

The most important thing for a fast pinewood derby car is true, straight wheels and axles. Next, the wheels and axles need to be as smooth (frictionless) as possible. (You often get burrs on the plastic wheels that should be sanded down.)

Which wheel should be raised on Pinewood Derby car? ›

The wheels are a significant source of potential energy drain on a Pinewood Derby® car. Raising the non-steer wheel (typically the front left) so it does not contact the track reduces the amount of energy used to start the wheels spinning.

How to design the fastest Pinewood Derby car? ›

For a fast car, you want the add more weight to the rear. The arrow car shape, for example, has a definite pointier front and slim body with cut-in sides that lead to a flared back end. You will want to ensure that the weight is slightly heavier near the rear wheel axle, so add weight to the flared back end.

Should I bake my Pinewood Derby block? ›

Baking your Pinewood Derby wooden block helps to remove the moisture so that you have more wiggle room to add extra weight at the end. Remember, every little bit of weight in the right place makes a difference! Bake it in the oven at 250° for about 2 hours.

Should weights go on top or bottom of Pinewood Derby car? ›

When the paint has dried, mount the weight on the top of your car as far to the rear as possible. The weight should not extend past the rear of the car. Glue bottom weights to the bottom of the block to bring the total weight (including wheels and axles) to 5 oz.

Should I glue Pinewood Derby axles? ›

Slide the axles and wheels onto the car and glue into place. Use an epoxy or nonresin glue, and make sure you don't get any on the surface of the axle where the wheel rides.

Should you sand Pinewood Derby car wheels? ›

Use the high grit (1000) sandpaper to sand the edge of the wheel while spinning it with the drill. Do not over-sand; you want to sand just enough to remove the flashing. With modified wheels, you'll want to sand off any burs from the cutting process but don't round over the edge.

Where is the best place to put weights on a Pinewood Derby car? ›

PUT MOST OF THE WEIGHT IN THE BACK

Science says the heaviest part of your car should be about 1 inch in front of the rear axle. The idea is that the farther back the weight is, the more potential energy you have because your center of mass is higher up on the track.

How far to push in Pinewood Derby axles? ›

Push until the wheel touches the car body. The base is designed to leave the proper gap between the wheel and body. 5. The axle will need to be glued if it slips easily into the car body.

How do I keep my Pinewood Derby wheels from rubbing? ›

The rear wheels should be set at a 3-degree angle (camber). This angle reduces friction as only a tiny portion of the wheel makes contact with the track. Plus, the angle makes the wheels migrate outward on the axle, rubbing against the axle head rather than the higher friction-prone body.

Should Pinewood Derby wheels be closer to front or back? ›

In the official Pinewood Derby kit, the axle grooves closest to the edge are usually put at the rear of the car. However, you are allowed to orient your car in whichever direction works best for your design.

What is a good time for a Pinewood Derby car? ›

So I'd look for something under 2.9 seconds... let's check some math. Your car doing this in 3.0 seconds goes 9.5454 mph. Going this same 9.54 mph for 40 ft (or 13.333 yards) gives a time of 2.85 seconds. So get UNDER 2.85 seconds and you're good to go.

What is the best weight for a Pinewood Derby car? ›

Assuming all other factors are equal, a heavier car will be faster than a lighter car. The Pinewood Derby rules limit the weight of each car to 5 ounces.

Is a shorter Pinewood Derby car better? ›

The longer the wheel base, the greater the turning distance (a short car turns much more quickly than a long car). A pinewood derby car should go as straight as possible, so a longer wheel base is an advantage.

What is the best length for a Pinewood Derby car? ›

All cars must pass the following inspection to qualify for the race: Width shall not exceed 2-3/4 inches. Length shall not exceed 7 inches. Weight shall not exceed 5 ounces.

Is a shorter Pinewood Derby car faster? ›

However, as with most facets of Pinewood Derby®, there is a trade-off between speed and stability regarding wheelbases. The shorter the wheelbase, the more potential there is for speed. However, the shorter wheelbase can also lead to instability, slowing the car.

Should you bend pinewood derby axles? ›

We recommend installing axles with a 1.5° bend for the front of the car and 2.5° bend for the rear. The axles heads are marked in the direction of the bend. Install the axles with the mark straight up. The alignment procedure requires turning the axles while they are in the car slot.

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