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McPappy Racing

347K views 2K replies 205 participants last post by  HitmanIII 
#1 · (Edited)
First, I'd like to thank everyone for participating in the original McPappy Racing (2008) thread. I'm starting a new thread without a date in the title (this forum doesn't let me change the original title). The old 2008 thread still has a lot of valuable information. As of the time of this posting, it has 1614 replies and 142,924 views.

In our continual efforts to provide excellent products, I'm happy to announce the release of the McPappy Racing Dart 2.5!
McPappy on Facebook

New changes for the Dart 2.5 Kit
Last year, across the country, many oval pan car racers have been struggling with too much weight transfer to the right front, picking up the left wheels, or even traction rolling. This happened when the rules changed from 41 oz to 36 oz to accommodate the lightweight single cell LiPo battery. We went from the heavy NiMH 4-cell packs and 2-cell LiPos down to a single cell LiPo. No longer having the heavy packs keeping the left side of the car down, racers discovered these handling problems with most pan cars. When running a mere 36 oz, we lost a considerable amount of left side (and forward) weight percentage. This new Dart 2.5 was designed specifically to address these problems. This new 2.5 car will run flatter and turn harder. It provides more left side grip than ever before.
  • The Dart 2.5 offers an offset T-plate and now a super offset T-plate position. We removed the centerline T-plate position. This also moves some weight to the left even more (all 3 shocks, center shock mount, T-plate, float bridge, supporting hardware, etc.)
  • We shortened the wheelbase a lot with the Dart 2.5!. You can slide the wheelbase anywhere from 9.75" - 10.06" (as opposed to 10.03" -10.32" with the 2.0). A short wheelbase allows the car to turn hard. (Imagine how poorly a dragster would turn on an oval track.) Traditionally, a short wheelbase can make a car too squirrelly, but we were able to get away with this for a couple of reasons. First, we took advantage of the Dart's notoriously excellent rear grip. The Dart's ultra low rear roll produces more rear grip than other pan cars as it keeps more weight on the left rear in the corners. (On the scales pan cars can look similar, but if you could weigh the LR in the corner, you'd see there is more weight due to the physics of a low rear roll center.) Secondly, the front locator track width adjustments lets you fine tune how much weight gets transferred making handling changes easy. When the car is handling right, you can get away with a short wheelbase and take advantage of it's turning capabilities.
  • We shortened the "neck" of the chassis so that the carbon fiber flex braces are now the same size (2.55") as the clamp links (CRC or Associated) giving you lots of possibilities.
  • We added new rubber o-rings designed to work with the carbon fiber flex braces which eliminates all tweaking.
  • Both motor pod plates were lightened some more.
  • The left motor pod plate was designed to get easier access to the T-plate nut.
  • 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.
  • 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.
  • We added new standoffs to flatten the angle of the side shocks. In our testing, this has proven to be better.
  • We added an extra front hole in front of the battery and filled in the carbon fiber near that area giving you lot's of options to use small carbon fiber braces (shown in more detail below)









We've released a Dart 2.5 Standard Kit and a Dart 2.5 Team Kit.
A comparison chart showing the differences of all of our kits is available here.

Merry Christmas!!
 
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#152 ·
Horsham PA charity Race

Well Congrats to Nick... he qualified 2nd to the snow birds champ George V. he got him by a little bit... it was a stout feild of 50 top guys in 17.5 stock.... It was the first time down for nick with the new McDominator.... Had one of the fastest / constant cars all day long.... way to go Nick:thumbsup:
 
#155 ·
I'm real happy to continue learning the importance of physics, from the people on this team. Although they are only toycars, and they sometimes frustrate me more than my wife, I wouldn't wanna be driving with anyone else.



I'd also like to thank Mr. Bruno Hoffman, he is the wind beneath my wings.




Hahahahahahahahaha
 
#156 · (Edited)
Definitely had a great time down at Marshalls and Horsham this weekend. Our team had a lot of fun and worked well together. I really like everyone on our team which makes it even more enjoyable. What a great group of guys.

The McPappy cars did outstanding which puts a smile on my face :) In a field of 50 cars, Nick just missed TQ (qualified 2nd) because he got on the ice once. Dom also had TQ handily with 1:30 to go but he got taken out. That dropped him from the pole to the C main unfortunately. John, Ryan, and Daryl ran strong on the track but didn't get much luck when it comes to clean runs.

I enjoyed the challenge of compensating for the bumpy tracks and know exactly what I want to do next time I come there. 10.5 was a lot of fun. Can't wait for next time.

Thanks to the crews and Marshalls and Horsham for running the show.
 
#165 ·
James, you are the man. I had TQ, Fast Lap, and A-Main win Saturday at the cellar in Bay City,MI. Just picked up another chassis from a guy on the boards so after I get it broke down and figure out what I want/need to replace I'll be putting in another order. This is by far the best chassis I have ever had, thanks again for the great products.
James
 
#168 ·
Hey James, who do we have to talk to in order to get the McPappy logo on the standard avitar list. I realize I can pay additional cash to become alifetime member and put anything I want up there but I'm not ready to make that purchase yet (gotta buy some parts for my second 2.5 team).
James
 
#170 ·
I will be sure to do that. I got a quick question, running in the Spring Fling in St Ignace MI. I'm told the track will have about a 220' run line. That is about twice as long as what I run on normally. Anybody have a rollout I could start with? 17.5 spec class, trinity D-3 motor with a GTB-2. Thanks
James
 
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