Red RC » McPappy Racing

March 14, 2012

McPappy Racing brushless chassis dyno

McPappy Racing have released their new brushless chassis dyno. The dyno can provide 5 styles of testing including chassis dyno testing, direct coupler in between both motors, direct coupler with flywheel in between both motors, offset motors using 2 pinions and offset motors using 2 pinions + flywheel. Chassis dyno testing offers the most convenience, as you simply set your car down on it and pull the trigger. This convenience allows you to try many variations and find the power you want quicker. You can also share numbers with other racers (regardless if the speedo and motor are different) to get the power dialed in very quickly. The chassis dyno can accommodate most 1/10th, 1/12th, and 1/18th, RC pan cars, dirt oval cars, touring cars (with front wheels propped up), buggies, etc. Direct ‘motor only’ testing is a bit more work to set up, but it provides an additional level of precision because it removes some more variables. If you are looking to find small differences, direct ‘motor only’ testing can be worth the effort. Whichever test method you are using, your overall goal is to turn the slave motor as fast as you can with the least amount of amps.

View more images of the Dyno here

December 30, 2011

McPappy Racing spring buckets

McPappy Racing have released these new spring buckets for 1/10th or 1/12th pan cars using small front springs like Associated, CRC, or WindTunnel “Babies”. They were specifically designed to keep the spring perfectly centered so they won’t touch the kingpin. This will make the front suspension smoother and prevent that metal grinding feel when the suspension is compressed. They also prevent scratches on the kingpin caused by the spring rubbing on it and greatly extends your kingpin polishing efforts. Since there is not much clearance between the kingpin and small springs, these spring buckets are machined Delrin with a very precise +/- .001″ tolerance. An Associated 1/10th .020″ spring was used in these pictures.

Source: McPappy Racing [mcpappyracing.com]

November 28, 2011

McPappy Racing lightweight body posts

From McPappy Racing these ultra lightweight adjustable body posts are half the weight of their competitors. There is about four times the normal machining involved to allow for a very lightweight design. The elliptical design provides a varied exterior wall thickness to lighten the side walls and they even machined a large hole in the middle for extra weight reduction. There are two set screws instead of one which is nice in case you strip one out or want to come in from a different angle. The typical threaded hole in the bottom allows you to mount it traditionally to any flat surface like the chassis or bumper. There is also two threaded side holes which will allow you to mount to any perpendicular surface like a cross brace. This allows you to not only adjust the body post height up and down, but also side to side. The posts offer 0.40″ of height adjustability and the kit includes rough cut 3″ Delrin rods that you can cut to size. Available in anodized Beryllium orange or plain aluminium.

View more images of the posts here

April 15, 2011

McPappy Racing Brushless Dyno

Today’s brushless racing introduced new variables, such as mechanical timing, speedo timing, RPM ranges, rotor diameters on top of the rollout variable. The new McPappy Racing DIY Brushless Dyno helps you to make sense of some of that. This dyno platform will allow you to test your motors against a brushless slave motor that provides consistent resistance from test to test. It was designed to accommodate multiple test configurations: direct coupler in between both motors, direct coupler with flywheel in between both motors, offset the motors using 2 pinions, offset the motors using 2 pinions flywheel. The flywheel provides inertia resistance and the brushless slave provides constant resistance. Together they reproduce similar track resistance. The key component to this dyno platform is a huge piece of 1/4″ 6061 aluminum which acts as a giant heat sink. Two large fans and all of that aluminum mass will bring the temperature of the motors and resistors back down to room temperature very quickly. This allows you to run many tests very quickly. To find your most powerful motor and speedo combination is actually quite simple. Your overall goal is to spin the flywheel and slave motor as fast as you can with the least amount of amp draw. The McPappy Racing DIY Brushless Dyno can help you do just that. You will be able to find your strongest motors and most efficient combination of mechanical timing, speedo timing, RPM ranges, and rotor diameters.

Source: McPappy Racing [mcpappyracing.com]

December 15, 2010

McPappy Racing Dart 2.5 oval chassis

McPappy Racing have introduced the Dart 2.5 and have released a Dart 2.5 Standard Kit and a Dart 2.5 Team Kit. This newest version was designed to stay flatter and turn harder and it has an offset and super offset T-plate position. Shorter wheelbase and lightened pod plates, the left side of the chassis was moved out .100″ to increase the left weight percentage and also taking advantage of the newest Protoform D-HD nationwide body. The LiPo strap brace was moved to the rear of the battery allowing the battery to move toward the LF wheel. This increased front weight percentage. They also added new rubber o-rings designed to work with the carbon fiber flex braces which eliminates all tweaking and finally new standoffs flatten the angle of the side shocks which in testing, has all proven to be better.

View more images of the new car here

February 2, 2010

McPappy Racing 1/10th scale Dart 2.0 Team kit

The new McPappy Racing 1/10th scale “Dart 2.0 Team Kit” has been designed with more new innovations specifically catering to single cell racing. Brand new flex control design offers flex options for any class, race track size or track conditions. For this year they lowered the center of gravity and lightened the car even more while providing even more tuning options. It has the left-most weight, lowest rear roll center, lowest center of gravity, roomiest rear motor pod, and lightest floating T-plate kit available today. The floating T-plate design not only offers centerline position, but also offers an offset position.

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March 10, 2009

McPappy Racing merchandising

Makers of the 1/10th scale Dart oval racer, McPappy Racing have released a line of merchandising. Their team polo shirts (55% Cotton / 45% Polyester, 7 oz. fabric) are black with orange accents and feature the McPappy Racing logo embroidered on the chest. High tech wicking finish that quickly draws moisture away from the skin and dries rapidly, perfect for those high pressure situations. Also new is the team cap, which is black with orange pinstripe around the peak. These 100% cotton caps sport an embroidered McPappy Racing logo on the front and are fully size adjustable with fabric strap closure and metal buckle at the rear.

Source: McPappy Racing [mcpappyracing.com]

February 24, 2009

McPappy Racing Caster Blocks & Bumpstops

McPappy Racing has now released a number of new items for their Dart 1/10th scale oval racer. First up is a line of 0, 5 and 10 degree Caster Blocks, which feature 3 holes for the upper wishbone mount that allow you to choose how much camber gain you want ,while providing 0, 5 or 10 degrees of active caster. To compliment the new blocks are these precision machined, adjustable bumpstops that allow you to independently control exactly how far each front wheel suspension will travel. You can engage them just a little bit to keep your chassis from bottoming out, or you can engage them earlier to control how the car reacts in the corner. One of the biggest benefits of running bumpstops is getting more weight on the left front wheel in the corners. As the car enters the corner weight shifts diagonally to the RF wheel. The RF bumpstop engages and now the weight travels to the LF wheel. Then the LF bumpstop engages and applies weight down on the left wheel. Bumpstops also can prevent rolling and keep the car level in the corners. These bumpstops are slotted so that you can slide them forward or rearward depending on how much caster you are running.

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