The wheels must be from the official B. The further back you can move the weight distribution, the more kinetic energy your car stores up, which in turn t. An ideal placement for who center away gravity is 7/8-in. 3 oz; Tungsten Putty (1 oz) Ruler (attached to a base so that it is standing on its edge) Example Pinewood Derby car construction rules from the "Cub Scout Grand Prix Pinewood Derby Guidebook" (BSA No. The Wedge Pinewood Derby Bundle includes all of the key items you need to build a competitive, BSA-compliant, pinewood derby car. Very likely the wheel halves also pick up a charge, and actively attract dust. This will leave room for the wood putty. All White River District Pinewood Derby rules apply. Cut off a vertical slice of the "extra" wood and reattach it to the front of the car. 5633, 5634 - Drilled axle holes, 4 wheels on the ground - add $1. If the weight is over 5 oz, drill holes in the bottom of the block between the two axle slots until the weight is 5 oz. This insets the wheels a small amount, protecting the front wheels from abrupt. A. Shop the selection at Maximum Velocity. The blocks vary in density from 3 to 6 ounces. Continue until. 7. 54” or 13. – Heat placement is meaningful. 2. PRO Graphite is a high performance, special blend of ultra-fine powered graphite with molybdenum disulfide additive. If a. A pinewood derby car is a 5 oz rolling application. 75” in diameter (19. Rodgers Middle School, 97 Old Dock Rd, Kings Park, NY 11754. The ideal placement required the center are gravity can 7/8-in. 7. Online Only. If you don’t have any old pennies lying around, no problem!Razor Wedge is a variant of our light-weight pinewood derby car body that uses BSA axle slot or Drilled BSA Distance wheel base with weights installed underneath the car body. Wheel OUT-OUT. 3 cm) strip of cotton and press the center of it against the spinning nail. The car must have 1 ¾” clearance between the wheels. Center Guide RAIL CLEARANCE (distance between left and right wheels. Raise a front wheel by 1/16 inch. Top. This is usually accomplished in one of 2 ways, the first more common and the second less so. The kit includes a pre weighted and painted car block with the weights set for optimal center of gravity for maximum speed. Boom. Read More at: Pinewood Derby Times Volume 10, Issue 8 A feature. Pennies minted before 1982 are 95% copper and weigh 0. The best way to do this is to turn the car around (design it to run backwards). This is the arfcom of pinewood derby. 6. 435-319-0220 | Newsletter: Subscribe for a free car plan!Official Pinewood Derby Replacement Wheels and Axles. 7 simple steps that ACTUALLY MATTER to building a winning pinewood derby car. Pine-Car Pine Car Axle Slot Jig Pinewood Derby Tool and Accessory #p4610. This insets the wheels a small amount, protecting the front wheels from abrupt. Pinewood Derby Design Overview: Fundamental equation of Pinewood Derby Car Design: Kinetic Energy (speed) = Potential Energy - Lost Energy Design Strategy: 1. Track clearance - be sure car will not drag on center rail. •Wheel bearings, washers, and bushings are prohibited. The wheel spin test will show you if a wheel bore is true to the wheel tread. pinewood derby speed wheels, lathed, fastest wheels. Retail $16. The tool has a built in gap gauge to set the correct wheel hub to car body gap. Shark. The cars will weigh between 4. 0 inches. 2. Cars must be registered on time and must be registered with the scout present. All plans include templates and step-by-step instructions, and the plans provide for optimal quantity of weight, optimal weight placement for both the standard (scouting) wheel base and the extended wheel base, and much more. 0 out of 5. This video will show you the. $ 13. To add flex weights to your car, place the car block, axles and wheels on a scale. steve. The horizontal COG of a pinewood derby car can be easily located as follows: (1) set a balance stand (or a ruler on its long edge) on a table and (2) lay the car (with wheels and axles in place) on the device as shown in Figure 1. All frictional losses in a pinewood derby car come from the wheels and axles. All plans include templates and step-by-step instructions, and the plans provide for optimal quantity of weight, optimal weight placement for both the standard (scouting) wheel base and the extended wheel base, and much more. Watch a video tutorial by DerbyDust. Pinewood Derby. in front of the rear axle. The NitroRail Pinewood Derby Kit includes a pre-shaped body with axle slots or holes, weight pockets, steel weight, and instructions. It’s best to use a polishing kit that is made for a Pinewood Derby car. Wheels made after January 2009 are preferred because of the smooth WIth a long wheelbase, the weight can be moved further to the back while still remaining forward of the rear axle and errors in wheel alignment will affect the long wheelbase car less since it has a larger turning radius for a given angular wheel deflection. 3. Shaft Diameter: 0. The weight of the car is usually limited to 5 ounces. Materials: 1 Ea. $13. Put the axle nail one-half inch into the drill chuck so one-half inch of the axle is showing, including the nail head. Weight shall not exceed 5 ounces. An extended wheelbase makes the car more stable and allows placement of the weights farther toward the rear of the car giving the car more speed. Graphite pads give your Pinewood Derby Car a speed boost. It is pre-weighted, painted,. And the drfit, well I usually measure at 4 feet not 3 feet. All bodies made by Derby Dust have the option of 3 wheel racing at no extra charge. 3. 056 oz (stock. The maximum height of the car cannot exceed 5 inches (Adjust this limit so that the cars will pass under your finish gate). While you may have certain tools needed already on hand, such as needle-nose pliers, many of these. Derby Talk is a forum for Pinewood Derby, Awana Grand Prix, Kub Kar Rally, Shape N Race Derby, Space Derby, Raingutter Regatta and other similar races where a child and an adult work together to create a race vehicle and a lot of fun and memories. After all, a pinewood derby race car hardly moves at racetrack speeds. •Note: Can use colored wheels if have BSA Logo •Width shall not exceed 2-3/4 inches. They contain the. Buy our pinewood derby car weights online. The minimal axle treatment is the removal of the burrs and crimp marks with a file, followed by sanding and polishing. Firebird Trans Am - Pinewood Derby 3D Car Design Plan. Therefore, the pinewood derby car will be 7 inches long (2. 5 oz tungsten cylinder (top) and a three-segment zinc cylinder that is . Whether you are using a standard wheelbase. Type. Move the car forward or backward until it balances on the ruler. Turn your car into a Pirate Ship!. The acceleration due to gravity is a constant. for performance, special-blend formula XLR8 amps your racer's speed to the max! Includes needle applicator for precise placement. For maximum speed the front and rear of the car must be level with each other. The picture below is a cross-section of the track. Black bear prepper discusses how to weight balance and graphite your pinewood derby car please check out the rest of our speed tips 1 through 5Derby Talk. Then we went to work. If you have the weight pocket in back filled, and you have a 3/4" CoM, you're looking good. - Plastic Polish: A ¼ oz. Polishing Pinewood Derby axles can be done most efficiently with a drill, a vice, 400, 600 and 800 grit sandpaper, and a rubbing compound. We show you weight placement, six color schemes and even give some speed hints. Watch a video tutorial by DerbyDust with tips and tools for a smooth and easy process. For optimal Pinewood Derby car performance, most of the weight should be placed one inch in front of the rear axle and as low on the body as possible. so They are precision tuned while removing . A large source of friction is the rubbing that goes on between the wheel and the Pinewood Derby car body. A chunky car design has more wood so it needs less weight. We can do it right the first time and. 95. Spend time sanding. The block can also be used on the flat side for extended wheel base cars. 6 grams. 5 degree bent axles are typically used to cant the rear wheels, while our 1. Derby Talk is a forum for Pinewood Derby, Awana Grand Prix, Kub Kar Rally, Shape N Race Derby, Space Derby, Raingutter Regatta and other similar races where a child and an adult work together to create a race vehicle and a lot of fun and memories. 5 ounces of weight needed. The Pinewood Derby is a lightning-quick battle of engineering, woodwork and graphite lubricant; fates and glories are sealed in a matter of seconds. The wheels in this kit are PineCar type wheels, so they are not allowed in a Cub Scout BSA race. We’ll tell you our favorite tricks furthermore tips for edifice the fast Pinewood Oberhaus car and give you the base physics behind why they labour. This can be measured by comparing the distance to the track (or other flat surface) at the front and back of the car. ( Car Not Included) Add to cart. Alignment is accomplished with multiple trials of running the car down the slope with the front end facing down the slope or, in reverse, with the rear facing down the slope in the direction of. To demonstrate, below is a picture of a . Paint your car and add the wheels and accessories. Proper placement of the weight on a racer enables you to fine-tune i for winning results. 33 times 3), 1-3/4 inches wide (2. Make a paste of rubbing alcohol and graphite. 3: Clamp the axle in your drill press or power drill. How close should pinewood derby wheels be to the car? The hub of the wheel should be a credit card thickness (about . PINEPRO-Pine Car Derby: Wheel Tuning Kit With Mandrel. Flames Pinewood Derby ® Decal. Should I sand my pinewood derby wheels? In the past, pinewood derby wheels had a mold mark on the wheel tread that had to be removed by sanding. The Pro-Hub Tool squares and/or cones the inner wheel hub of pinewood derby wheels. •Weight shall not exceed 5 ounces. With that being said, there is the. Add more more graphite. These are 1/4″ self adhesive pads that are placed over the axle hole on the body. 4 15 ratings. Key Alignment #1 - Rear Wheels. Type. So could the extended wheel base car. Forget the pencil or ruler; use our Center Of Gravity (COG) Stand to accurately measure and adjust the balance point of your pinewood derby car. But what most derby enthusiasts do NOT know, however, is that the type of weight actually makes a difference. Where the short wheel base car would tend to get the death rattle if the cog was pushed back to far. 7 grams). This ensures compact weight placement, which helps to get the most speed out of your car. When you are finished, your axles should be angled at about 10 degrees from vertical. Now pi is approximately 3 so every time a wheel rolls without slipping, skidding, or sliding on the track it travels 3 x 1. Learn how to easily put wheels on the pinewood derby car with this video tip from Pack 162. 12-spoke or 14- spoke wheels marked "OFFICIAL BSA MADE IN USA" are permitted), including official factory-colored plastic wheels. Momentum helps a derby car continue to roll as fast as possible on the flat section of the track. However, Boron Nitride might be useful as a pinewood derby lube for races requiring a white lube. Boom. Diagram of pinewood derby car wheel alignment under conditions where the wheel moves out when the car rolls either forward or backward. From the scout store we had purchased the pinewood derby speed kit that included: sandpaper, extra nails, a white powder (that I thought was Teflon lube), wheel mandrel, etc. Wheels and axles are not included, so use the wheels and axles supplied by your club or order them separately. Overall WIDTH shall not exceed 2-3/4 (2. All cars must pass the following inspection to qualify for the race: Width shall not exceed 2-3/4 inches. •Axles, wheels, and body shall be from the materials provided in the kit. With these measurements, dividing the length (3) into 7 gives 2. 3. 9 out of 5 stars. The components include: 5652 – Funny Car Kit with precision-cut axle slots that match BSA. See also Pinewood Derby Car Grooved Axles in 2023. Pinewood Race Car Turn-In and Miss. Standard pinewood derby blocks have grooves in the bottom of the car for the axles guides. Use lightweight wheels. Each car must pass inspection by the pinewood derby committee prior to racing. In each case I prepared an unused 1999 BSA Pinewood Derby wheel, then cut the wheel open on a scroll saw. rear wheels is the theoretical correct technique. Plan on adding 2 to 3. Where the short wheel base car would tend to get the death rattle if the cog was pushed back to far. Only official Cub Scout Grand Prix Pinewood Derby wheels and axles are permitted. 25oz. The wheels must be from the official B. Wheels and axles are not included, so use the wheels and. Advanced Tip: Finish each axle with metal polish on a clean rag. Max out your weight at the regulation 5 ounces. 14 Results. Spend time sanding. Although the LCG car will attain a higher speed, due to a pendulum effect the HCG car will traverse the curved portion of the track slightly faster. Speed Axles from Maximum Velocity. Pine Car Derby Car Kit-Basic. Slowly grind away at the top ofthe axle until it is angled at about 10 degrees from vertical. Three wheels is a great tactic, accomplished by simply putting the axel of one wheel higher than the other 3. The rules that come in the Grand Prix Pinewood Derby Kit (BSA Kit 17006) are known as the "Rules in the Box. 2. Our MV pinewood derby wheels are top-quality wheels. One of the most important aspects of building a successful pinewood derby car is ensuring that the wheels are aligned correctly. Once you have it tuned, try it a few more times to make sure it's consistent. The ideal placement for the center of gravity is 7/8-in. SKU: 5149 Categories: Individual Derby Tools, Pinewood Derby Tools. Description. •No lubricating oil may be usedMake sure your derby racer meets specifications before race day. That's just me though. Little rolls of electrical tape can go over the wheel as you press the axle in the opposite side. Retail $16. 3: Clamp the axle in your drill press or power drill. If the weight is over 5 oz, drill holes in the bottom of the block between the. Includes needle applicator for precise placement. Experiment 1 – Rotational Inertia. In about November of 1990, I looked into getting a Pinewood Derby Timer for my son’s Cub Scout pack. My buddy's helping his kid with a pinewood derby car and weight placement came into question. A. This track can be used to test your pinewood derby or Awana car before the race or it can be used to hold your own races for parties and other events. Chrome Pinewood Derby Wheel Decals. But what most derby enthusiasts do NOT know, however, is that the type of weight actually makes a difference. Watch on. All BSA markings are intact. Choose the right car shape. Glue the canopy to the top of the car with super glue or epoxy. Add decals. 3 Spray on lubricants 2. Official Pinewood Derby Rules (Rules from BSA Pinewood Derby Kit) Car Dimension Rules The overall length of the car shall not exceed 7 inches. Weight Placement: part 1 - Center of Mass, critical weight positioning; Weight Placement: Part 2 - getting jiggy with it, another mistake to avoid;. Some people angle the axles up in an attempt to keep the wheel away from the body. Joined: Sat Feb 23, 2008 7:33 pm. This article is only going to address WEIGHT. Wheel. Keep the emery paper moving to avoid creating grooves in the axle. With the popularity of the pinewood. The key to maximizing momentum is by adding weight. I am a big fan of 1× 3⁄8″ hole drilled behind the rear axle, with 2× 3⁄8″ holes in front of the rear axle as close as you can get them. Pinewood Derby boxed set. Where the extended wheel base would not transition as well on the incline,however should track better in the flat. Pinewood Derby® Car Weight placement plays an important role in how well a PWD car will perform. Assuming a seven inch maximum length and approximately 1-1/4 inch diameter wheels, the best placement for the axles is 11/16 of an inch from the front and back of the car. It must clear the ground by at least 3/8 inch. Now $5. 1″. Hub coned and squared to reduce friction when wheel touches car body. ADD TO CART. In this section, we perform an experiment where we vary the aerodynamic properties of a pinewood derby race car, and measure the effects on the car’s speed. We even show you your car in 6 different color schemes so you can pick the coolest look. Alignment simplification – The alignment of only three wheels needs to be adjusted instead of four. Notes: Tungsten is non-toxic and child-safe. 5. Let the putty or glue dry. Polish the exposed axle with a thin strip of wet 400 emery paper. Finally, screw on the free wheel spacers to secure the weights in place. Matching search results: This is no secret to seasoned builders. It has two grooved slots for accepting full-length axles or nails in the bottom of the car body. Watch the video and follow the steps to place the wheels in the correct position and orientation. Derby Talk is a forum for Pinewood Derby, Awana Grand Prix, Kub Kar Rally, Shape N Race Derby, Space Derby, Raingutter Regatta and other similar races where a child and an adult work together to create a race vehicle and a lot of fun and memories. 75 ounces. WOW! Big D 23 Mar 2014 5. It will also need to be adjusted according to what type of track you are racing on. So I decided to design a timer myself. Alignment is accomplished with multiple trials of running the car down the slope with the front end facing down the slope or, in reverse, with the rear facing down the slope in the. A. 3. BSA Lightly Lathed Speed Wheels are precision tuned and super fast, while leaving all of the BSA markings in the inside and outside of the wheels. 7 mm). Best Match. We were both looking. Wheel Bearings on Pinewood Derby Car. 10 Tips for a Fast and Cool Looking Pinewood Derby Car. 33 times 3/4), and 1. The Firebird muscle car speeds to the finish line. Use Graphite - Graphite is a great lubricant and easily accessible to all. Inside tread is lathed and trued. $14. 5 Degree Bent Axles into the rear wheels. The overall width of the car shall not exceed 2 ¾ inches. Only official BSA wheels allowed and letters must be visible. Pinewood Derby Wheels Tip. Using metal test track, electronic starting gates, and custom track timer, Shopvelox tune the finished ready to race pinewood derby cars to run fast to give you the best possible speeds for car design. Accurate measure Center of Gravity Mass for Pine wood Car. Drill out the holes for your Pinewood Derby Car Weight. Pinewood derby car axle hole drilling jig. Location: houston, texas. Putting the weight on the front, although gets you a slightly quicker start down the curve, does not prove to be the best weight placement for the remaining flat portion of the track. Pine-Car Pine Car Total Hub Shaper Pinewood Derby Tool and Accessory #p4614. This is. Only dry lubricant is permitted. Our unique wing shape design is aerodynamic and reduces drag, ensuring your. Drill a 1-1/16 inch diameter hole into the bottom of the car body, and then epoxy the Round into the hole. 5621, 5622 - Drilled axle holes, 4 wheels on the ground - add $1. weight placement. $4. Pipe Cleaners (5) $ 1. All axles, wheels and car bodies should be made from material provided in the official BSA kit. – Can drill straight holes, or holes at a slightly downward angle for wedge-shaped cars. If desired. 6. 25 in stock. Our BSA (Cub Scout) Ultra-Lite Pinewood Derby Wheels are lathed in 5 dimensions. Male. Hubs are lathed and the edge of the hub is. Re: Wheel spacing when mounting wheels Post by Nitro Dan » Thu Jan 22, 2009 11:13 pm Here's a link to an article in the January 2008 Pinewood Derby Times (put out by Maximum Velocity) that discusses the optimal gap spacing between the body and the wheel: Our Wedge and Racer pinewood car derby blocks are now available with the weights pre-installed. – Ensures accurate weight placement by allowing you to drill precise weight holes into the side, back, or bottom of a pinewood derby block. 5 oz of weight to your car, depending on your car design and the weight of your pine wood block. In these rules, car bodies cannot surpass 2 ¾ inches wide and 7 inches long. so They are precision tuned while removing . 3. As the wheel base is adjusted the optimum or ideal CG position is calculated and displayed as a reference for comparison to the actual measured CG. This can be measured by comparing the distance to the track (or other. h. The components include: 5632 – Sports Car Kit with precision-cut axle slots that match BSA specifications in placement, depth, and width. We'll even let you see your car in. Takes. pine. Eight, 1-1/8 x 7/8 x 1/8 O-rings – One or two of these rings. BSA Precision Lathed Speed Wheels, the Precision Drilled Pinewood Derby Block, the Graphite with Moly Additive. Speed Tip #4. Then shave or sand the recess to 1/16th of an inch deep. 25 oz Tungsten Pinewood Car Weights + 20 Page Step-by-Step Build Guide for Apollo 2000 Derby Car Showing Design + Weight Placement, Bring Your Car to The 5 oz Limit and Gain The Winning Edge. Example Pinewood Derby car construction rules from the "Cub Scout Grand Prix Pinewood Derby Guidebook" (BSA No. BSA Graphite Coated Axles (4 axles) $10. Car Plans – Download. With our huge inventory of pinewood derby kits, wheels, decals, plans and more, we have what you’re looking for. Only official Cub Scout Grand Prix Pinewood Derby wheels and axles are permitted. Lightning. Cut the flex weight cylinders with a scissors so the total weight is 4. Bake the wood block. Plus, the angle makes the wheels migrate outward on the axle, rubbing against the axle head rather than the higher friction-prone body. Sand and polish your wheels and axles. I managed to center it pretty easily, but if the screw end was beveled like a lug nut, it would solve this problem. The overall width of the car shall not exceed 2 ¾ inches. Sold and shipped by. 6 inches tall (2. The shorter wheel base car should have longer to fall on the incline due to set back wheels. There was 0. Return to Product Catalog Page. 6 inches tall (2. The weight holes go through the entire 1 3/4" width of the body. Placement of the graphite inside the wheel hub is critical to gain an edge on your competition. 0 out of 5. Shop our selection of Tungsten, lead, Tundra, Flex, and steel weight for your pinewood derby car. Drill. 25″ and no more than 4. Taper the Axle Head. ITEMS NEEDED. The wheel is solid plastic with a hole drilled through it, and a nail goes through the axial hole, into a slit on the bottom of the wood block. First, sand the nail using sandpaper, and after, apply a polish or lubricant to help increase wheel spin. 5 oz wheels/axles = 2. 2: Place a dark mark on the axle at 1⁄16th of an inch from the head. You can build the Batmobile, batman car! Illustrated step-by-step with 3D graphic images makes it a snap. All plans include templates and step-by-step instructions, and the plans provide for optimal quantity of weight, optimal weight placement for both the standard (scouting) wheel base and the extended wheel base, and much more. All stale lubricant is permitted. 15 grams on the front with wheels on.