Co2 Cars

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Project by Kerux posted 05-27-2010 05:09 AM 18229 views 1 time favorited 21 comments Add to Favorites Watch

D-Day is coming this Friday. My 7th grader (Josh) is doing Co2 cars for a final school project with his class. I told him that I did those in 7th grade too. So, he ends up asking the teacher if I can make one so he can race against me. So the duel of the ages will be upon us soon. Here is Josh working on his car made from Bass wood. I made mine from Paduak, Maple and Walnut lamination. (I was trying to go for a ‘cool’ factor).

So the little booger doesn’t paint, he finds these really cool full page decal of the USA flag. I lost the cool factor!
His car weighs 3.7 ounces, mine weighs 3.8 ounces. I thought about trimming more off the back, but decided it would be more fun to race them this close in weight. (Secretly, I hope he wins.)


21 comments so far

View a1Jim's profile


112104 posts in 2235 days

#1 posted 05-27-2010 05:12 AM

Wow those are far out cool cars great job

-- Custom furniture

View Dan'um Style's profile

Dan'um Style

13003 posts in 2641 days

#2 posted 05-27-2010 05:38 AM

fun project and cool story … let us know who won
... looks like a great kid too. You should be proud of him.

-- keeping myself entertained ... Humor and fun lubricate the brain

View ND2ELK's profile


13495 posts in 2432 days

#3 posted 05-27-2010 06:01 AM

Great looking cars guys! We expect a report on who’s car wins. Thanks for posting.

God Bless

-- Mc Bridge Cabinets, Iowa

View Broglea's profile


665 posts in 1749 days

#4 posted 05-27-2010 06:08 AM

I love the decal! Very cool to have a Father Son competion. Any wager on the event? Winner buys the ice cream?

View ianlee74's profile


151 posts in 1606 days

#5 posted 05-27-2010 06:50 AM

Josh definitely wins the cool factor! Tell me more about CO2 cars. I’m familiar with Pinewood Derby but this is a new one to me. I assume you use some sort of CO2 engine? Baking soda?

-- Ian, Tennessee

View TopamaxSurvivor's profile


14754 posts in 2334 days

#6 posted 05-27-2010 07:02 AM

Good project Dad. How do you keep the engine on them?

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Kerux's profile


812 posts in 2542 days

#7 posted 05-27-2010 07:07 AM


here is a link to a video I found. Pretty much how it works.


View bake's profile


348 posts in 2335 days

#8 posted 05-27-2010 07:34 AM

Both great looking cars. I really like the decal.
The time you guys spend together in the shop is priceless, hang onto it.

-- I love the smell of Home Depot in the morning, it smells like.......carpentry. Bake, Bar Lazy U Woodworks, Lehi,UT.

View mafe's profile


9549 posts in 1747 days

#9 posted 05-27-2010 08:40 AM

Really cool cars.

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View Bill Akins's profile

Bill Akins

421 posts in 2356 days

#10 posted 05-27-2010 01:43 PM

Cool stuff. Not familiar with those. Does remind me of my son in the cub scout days with the pinewood derby cars. We had a lot of fun. I on ly wish I had the shop I have now back then.

-- Bill from Lithia Springs, GA I love the smell of sawdust in the morning.

View Bluepine38's profile


2876 posts in 1743 days

#11 posted 05-27-2010 03:19 PM

Cool looking cars. These projects are a great way to start kids on woodworking. When my boys were into
the pinewood derby, I always bought an extra kit, so I could work on my car and their cars would be the
product of their efforts alone. The oldest won the big competition with a car that might not have looked
perfect but it was his and his grin holding the trophy was priceless. Keep sharing the shop.

-- As ever, Gus-the 75 yr young apprentice carpenter

View jockmike2's profile


10635 posts in 2904 days

#12 posted 05-27-2010 03:37 PM

Looks like fun Kerux, sounds like a great kid. I hope he wins too.

-- (You just have to please the man in the Mirror) Mike from Michigan -

View Phil53's profile


90 posts in 2280 days

#13 posted 05-27-2010 05:05 PM

I’ve never seen any of these this is really cool. This is a toy I could get into.

View JJohnston's profile


1578 posts in 1949 days

#14 posted 05-27-2010 05:11 PM

Looks like stability during the violent launch is the biggest design challenge, and I wouldn’t have a clue how to address that. Looks fun, though.

And how did he get the decal onto all those curves?

-- "Sorry I'm late. Somebody tampered with my brakes." "You should have been early, then."

View MrsN's profile


939 posts in 2184 days

#15 posted 05-27-2010 07:12 PM

you both have nice cars. my 7th graders are working on co2 cars right now, all 18 of them. we are not as far along as yours. good luck to both of you. I occationally predict the winner for my students races, i am pretty good at it most of the time. my vote is for your kids car, but i really like yours.

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