Co2 Cars

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Project by Kerux posted 1423 days ago 17674 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


109323 posts in 2078 days

#1 posted 1423 days ago

Wow those are far out cool cars great job

-- Custom furniture

View Dan'um Style's profile

Dan'um Style

12497 posts in 2484 days

#2 posted 1423 days ago

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 2275 days

#3 posted 1423 days ago

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


664 posts in 1592 days

#4 posted 1423 days ago

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 1449 days

#5 posted 1423 days ago

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


14401 posts in 2177 days

#6 posted 1423 days ago

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 2385 days

#7 posted 1423 days ago


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


View bake's profile


310 posts in 2178 days

#8 posted 1423 days ago

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


9231 posts in 1590 days

#9 posted 1423 days ago

Really cool cars.

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

View Bill Akins's profile

Bill Akins

421 posts in 2199 days

#10 posted 1423 days ago

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 1586 days

#11 posted 1423 days ago

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 2748 days

#12 posted 1423 days ago

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


78 posts in 2123 days

#13 posted 1423 days ago

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

View JJohnston's profile


1572 posts in 1792 days

#14 posted 1423 days ago

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?

-- The whole aim of practical politics is to keep the populace alarmed (and hence clamorous to be led to safety) by menacing it with an endless series of hobgoblins, all of them imaginary. - H.L. Mencken

View MrsN's profile


930 posts in 2027 days

#15 posted 1422 days ago

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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