Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11
  1. #1
    Race, wreck, repeat delagem's Avatar
    Join Date
    Aug 2006
    Location
    Homer, NY
    Posts
    728
    +1
    2

    Anyone making a Pinewood Derby car?

    Looking for tips on helping my son make a fast Pinewood Derby car. I know about taking the flashing off the nails that hold the wheels on, anybody have any other advice?

    I'm sorry if anyone is bothered by this post, i.e. not Polaris related.... But the boards do seem kinda slow lately.

    Michael


  2. #2
    Old Ski Insanity w/rpm500's Avatar
    Join Date
    Aug 2005
    Location
    Crystal River Fl
    Posts
    2,208
    depends on what you can get away with ..let see radius the inner wheel edge where the nail goes thru..use a polishing powder and burnish the nails in each wheel(they are sealed, not to rust) , clean and dry this , dont use oil, run dry or do some spin tests with a dry powder lubes... weight the car and centrally locate any weight added evenly between the axels.. lightly polish the outer rolling surface of the wheels looking for defects .. just as a full size car, cut down air resistance via shape.. a longer body is less affected by track irregularitys (bouncing and curve).. remember ,there is only so much you can deviate from the rules..

    just dont go with the kit handed to you .. some woods are denser and work easyer...you can buy these on line or at the regional supply house set up where uniforms can be bought

    i know my dad went nuts with mine..i think i saw the first one a 1/2 dozen time before the event..mine were of a circle track car with hand painted flames and anther was a black 'stock car' from the fiftys .. the last one i finally did my self as i got tired of saying 'yes, i worked on it' it was a chapparal type wedge.. have fun let him work on it too...if you can stand it !!!

  3. #3
    Plrs X45's Avatar
    Join Date
    Sep 2006
    Location
    Joliet, Il
    Posts
    357
    +1
    5
    The fastest pinewood cars are front weighted and one of the wheels is barely off the ground (back one). This uses gravity and less friction due to the car only rolling on three wheels. Good luck.

  4. #4
    Plrs X45's Avatar
    Join Date
    Sep 2006
    Location
    Joliet, Il
    Posts
    357
    +1
    5
    Sorry. When I say "front weighted" I mean in the front third and NOT past the front wheels.

  5. #5
    gorilla03's Avatar
    Join Date
    Sep 2006
    Location
    stevens point wi
    Posts
    3,774
    +1
    5
    Quote Originally Posted by Plrs X45 View Post
    The fastest pinewood cars are front weighted and one of the wheels is barely off the ground (back one). This uses gravity and less friction due to the car only rolling on three wheels. Good luck.
    +1...back when i was in the boy scouts i took 2nd place overall! i dont remember what it was but i used some sort of graphite power and used that to lubricate the wheels...and mine was right at the minimum weight

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,570
    +1
    1,272

  7. #7
    2000 pro 785 (son's) 1998 pro 785 (dads) old guy in mich's Avatar
    Join Date
    Aug 2007
    Location
    sw lower mich
    Posts
    350
    ditto. key to speed is precission because cars a basically one design (same specs for everyone). model/hobie shops carry aftermarket but legal parts and kits. keep in mind you can add wieght via lead etc to make min weight. postage or reloading scale is handy, but chk against "offical scale". weight, axels, wheels, and lube are key to gofast.
    some links:
    http://pinecar.woodlandscenics.com/index.cfm
    http://www.maximum-velocity.com/
    http://www.derbychamp.com/
    http://www.pinewoodpro.com/
    http://www.abc-pinewood-derby.com/

  8. #8
    Old Ski Insanity w/rpm500's Avatar
    Join Date
    Aug 2005
    Location
    Crystal River Fl
    Posts
    2,208
    and how many of you worked on the car as a kid or did your dad do it all!!! it was funny thinking back how many dads dit the work in secret till the day of the race...
    yeah some 10 year old thinks all those race secrets up...

    do we need a mud bug derby with woodens skis and rubber band motors


    (some one will put a co2 cartridge in to proppel with)

  9. #9
    gorilla03's Avatar
    Join Date
    Sep 2006
    Location
    stevens point wi
    Posts
    3,774
    +1
    5
    Quote Originally Posted by w/rpm500 View Post
    and how many of you worked on the car as a kid or did your dad do it all!!! it was funny thinking back how many dads dit the work in secret till the day of the race...
    yeah some 10 year old thinks all those race secrets up...

    do we need a mud bug derby with woodens skis and rubber band motors


    (some one will put a co2 cartridge in to proppel with)
    I had to do a project from scratch with the c02 cartride in junior high school...mine went flying

    I made my own pinewood derby car my dad just showed me how to use everything and made sure i didn't get hurt

  10. #10
    Old Ski Insanity w/rpm500's Avatar
    Join Date
    Aug 2005
    Location
    Crystal River Fl
    Posts
    2,208
    I see they went to the flat ,wide wheel.. mine were basic disc's ...

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Anyone making fiberglass seats????
    By Lvnspeed in forum 4-Tec Performance
    Replies: 13
    Last Post: 08-25-2007, 01:22 PM
  2. VF3 Reed stuffers? Anyone make better ones than this chinsy plastic?
    By MJE in forum Yamaha PWC Performance (2-stroke)
    Replies: 2
    Last Post: 05-28-2007, 04:11 AM
  3. Does anyone make a reliable Powervalve for the 1200's?
    By snowrunner in forum Yamaha PWC Performance (2-stroke)
    Replies: 14
    Last Post: 05-18-2007, 04:37 PM
  4. Anyone Making a Lightweight Seat??
    By 1 FAST VE in forum 4-Tec Performance
    Replies: 20
    Last Post: 02-14-2007, 01:18 PM
  5. Does anyone make a header?
    By flyn ryan in forum 4-Tec Performance
    Replies: 25
    Last Post: 05-17-2006, 04:05 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •