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Pinewood derby
#1144539 Wed Jan 13 2016 08:24 PM
Joined: Jan 2010
Posts: 4,610
D
DADS50 Offline OP
Shop Shark
Any tips?

Last year was our first time. We had a blast.

Built the standard kit

...quick time... ours was last in all 4 races


Re: Pinewood derby
DADS50 #1144542 Wed Jan 13 2016 08:42 PM
Joined: Jan 2014
Posts: 1,374
J
Shop Shark
I was a scout. Dad and I built cool-looking cars that never placed.

The cars that won were usually the thinnest (height). And there was some trick about the weight placement that made a difference. Maybe being front-weighted? Been too long for me to remember. I think roughing up the wheels was another trick.

Our first car was a total dog. We didn't realize you had to weigh EXACTLY the max weight (without going over) to even have a chance.

Fun memories.

Re: Pinewood derby
DADS50 #1144547 Wed Jan 13 2016 09:59 PM
Joined: Mar 2007
Posts: 4,867
Shop Shark
I helped a fair bit with that as a leader and later as someone who came in specifically to help cut out the cars. To me, it's all about getting the wheels perfectly straight and with graphite lube. Some cars that looked like square blocks would do as well as the fancy ones, if the wheels were aligned good. We had a 5 ounce limit and if they were too light, would drill a hole in the center of the bottom and press pennies into the hole. As JW mentioned, we lightly sanded the wheels to rough them up a bit.

You're right DAD, it's a blast.

Re: Pinewood derby
DADS50 #1144568 Thu Jan 14 2016 12:15 AM
Joined: Sep 2001
Posts: 30,561
ace skiver
Use weights to obtain the maximum permissible weight.

Place the weights as close to the rear of the car as you can. Make sure the car is stable going over the bumps/mounds in the ramp. Adjust the weights forward only to assure stability over the bumps.

Having the weight further back increases your potential energy resulting in higher velocity by the end of the run.

The powdered graphite "lube" is a very good suggestion.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Pinewood derby
DADS50 #1144575 Thu Jan 14 2016 01:14 AM
Joined: Sep 2010
Posts: 1,559
W
Shop Shark
Make it roll on 3 wheels. Raise one of the front wheels just off the track. It has less friction on 3 wheels.

There are tons of tips and tricks on google.


Wayne

When I die, I hope she doesn't sell everything for what I told her I paid for it!

1938 1-Ton Farm Truck
In the Stovebolt Gallery
Photos that I have shared on Stovebolt via PhotoBucket are no longer available. Please contact me if you want a photo from an old post. malmwayne@hotmail.com
Re: Pinewood derby
DADS50 #1144580 Thu Jan 14 2016 01:57 AM
Joined: Jan 2010
Posts: 4,610
D
DADS50 Offline OP
Shop Shark
Yeah to much info on google, was hoping to get some tips from old- young at heart racers

3 wheels? Maybe we did that last year by mistake. We will check that out.

heres our entry last year. night fury


We didnt use graphite last year but I picked some up when we got the kits.

All we did last year was polish the nails/axels

We will scuff up the wheels this time, had not heard of that one.

My son wants to do a star wars car this year, my wife wants a pick up. Maybe we will end up with a stormtrooper pickup

I did have to add some pennies last year, we were underwieght.


I was suprised last year. Adults come from all over and race in thier own class


We spent about two days on it last year. I didnt want to focus on the race but on the build. My kid did some sanding and started with the rattle can paint, he put the stickers on too. I did the saw cut.

We were not prepaired but had fun in the process. I know he wants his car to do a little better this time.






Re: Pinewood derby
DADS50 #1144586 Thu Jan 14 2016 02:19 AM
Joined: Mar 2007
Posts: 4,867
Shop Shark
It's all about the kids having fun as I'm sure we all know. It can get out of hand sometimes.

Re: Pinewood derby
DADS50 #1144599 Thu Jan 14 2016 03:15 AM
Joined: Jan 2014
Posts: 1,374
J
Shop Shark
We melted lead split shot and poured the molten lead into a shallow hole in the car.

Like a 1 inch hole drilled with brace and bit.

Re: Pinewood derby
DADS50 #1144610 Thu Jan 14 2016 05:24 AM
Joined: Dec 2001
Posts: 15,230
Boltergeist
For a few years the scouts at church would come over to my shop and draw the body lines of how they wanted them cut. I must admit some of them totally surprised me. I would attend the races and was amazed at myself how excited I was for the guys having some good clean fun. I also enjoyed all the cookies and deserts the den moms provided for everyone. Yum yum.
Yep, the young guys learned as they went....kind of reminded me of how we build and learn from trucks!!


1937 Chevy Pickup
1952 Chevy Panel
Pictures in my Photobucket
1950 Chevy Coupe

52 Chevy Panel

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile
Re: Pinewood derby
DADS50 #1145993 Fri Jan 22 2016 04:35 AM
Joined: Jan 2010
Posts: 4,610
D
DADS50 Offline OP
Shop Shark
...pic...

... smile ...

... smile ...

... smile ...


... kylo ren and the first order...


Race day this saturday.
We dont have rockets but it was fun putting them together.


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