Introduction: V-8 Engine

This is my entry for The Grand Knexpert Tournament R2. I hope that I make it through and good luck to all of the other contestants.


Acepilot42 (author)2009-10-26

it is called a crankshaft, not a drive shaft.

knexguy (author)2009-01-14

Never thought of using a drill to power stuff before... could work for weaponry. Great build, I reckon you might just win this thing. You will probably get the top score in this round too...

assassin1321 (author)knexguy2009-07-08

one person made a fully auto airsoft bb shooter that worked off a crank a drill would make that gun go crazy

viper2788 (author)knexguy2009-01-21

it would work very well for weaponry in fact. its exactly what you need for a powerful, fully automatic gun with a high rate of fire. i'd actually love to see one properly built ;)

knexguy (author)viper27882009-01-21

I might give it a go, I'm bored at the moment.

viper2788 (author)knexguy2009-01-23

so... how did it go?

knexguy (author)viper27882009-01-23

I'm still working on converting my PDW/CQB weapon into an assault rifle. Here's the base design:

razzlekunai (author)knexguy2009-01-28

I see Knexsayer handle.

knexguy (author)razzlekunai2009-01-28

I know, but it's so COMFY!

razzlekunai (author)knexguy2009-01-28

Indeed, it is comfy. Have you built the Knexsayer?

knexguy (author)razzlekunai2009-01-29

Yep, don't have it anymore though, destroyed it for a shell-ejecting sniper. Still in progress.

razzlekunai (author)knexguy2009-01-29

Nice. Is it your own design, or is it the one Bakenbitz has on KI?

knexguy (author)razzlekunai2009-01-30

My own take on the theme. No copying.

razzlekunai (author)knexguy2009-02-02

Ah, I see. Tell me how it goes, it seems really interesting :P

knexguy (author)razzlekunai2009-02-03

My idea was for a bolt which pulled back the pin and the chamber cover, releasing the previous shell and allowing a new one to load, then pushing the bolt forward would re-cover the ejection port. It's very buggy, I will have to work hard on this one :/

razzlekunai (author)knexguy2009-02-03

That's a pretty cool idea. The way the system goes, it will be single shot, yes?

s0lekill3r (author)knexguy2009-01-14

Yeah I've thought about using a drill for weaponry but it would be impractical because of how big a normal drill is and you would need to have it be a cordless drill to move around, making recharging batteries necessary too. I hope I win it, but like I said I have some tough competition.

lukeg36c (author)2009-04-09

okay guy ive seen a lot of movies of u but i think this is the best if u want to see my video look at youtube: knex buick and then you get my engine plzzzzzzzzzz post this one because its cool and sturdy

heat-seeker (author)2009-01-19

try and put a gearbox on it that wouth be cool

knexfreak95 (author)2009-01-17

thats cool it is a push rod right

Rasushi (author)2009-01-15

I love it!

Sun Gear (author)2009-01-03

cool. try putting the valves (gas intake and exahst from an to the cylenders) and maybe even a carborator (assuming it doesnt have gas injection).

killjoy (author)2009-01-02

You should post this definitely. I saw your helmet it is also really cool i would love to build them, nice job btw on both of them.

dutchwarlord (author)2008-12-31

i have seen this v8 engine before on youtube but that onother thing has a onother body

s0lekill3r (author)dutchwarlord2008-12-31

Really? I haven't seen anything like this.

dutchwarlord (author)s0lekill3r2008-12-31

v8 enginehere is the instructable of it

s0lekill3r (author)dutchwarlord2009-01-01

Whoa, I never noticed that before.

dutchwarlord (author)s0lekill3r2009-01-01

don't care about that this is a wonderfull entry and i think you win the tgkt

s0lekill3r (author)dutchwarlord2009-01-01

Thanks =D

killjoy (author)dutchwarlord2009-01-01

I built that engine yesterday and built a truck around it. It works quite nicely thanks for the link.

dutchwarlord (author)killjoy2009-01-01

no thanks to me thank the guy that has make the engine

DJ Radio (author)2008-12-31

Nice! again, my money is on you.

partyone (author)2008-12-31

I think Knex are cool. And this is cool but I agree with lebowski I would like to see how to make this.

I_am_Canadian (author)2008-12-30

Thats class man! Seriously good building going on here... No doubt a great entry. Good luck! Posting...?

s0lekill3r (author)I_am_Canadian2008-12-30

Thanks, good luck to you too. I might be posting, I'll have to see if I have enough pieces left after I'm done making the master chief replica suit. (go ahead, laugh lol)

Skreetsha (author)s0lekill3r2008-12-31

Sweet as honey, dude! Good luck! This is a great entry! :D BTW, 5 stars!

s0lekill3r (author)Skreetsha2008-12-31


Skreetsha (author)s0lekill3r2008-12-31

You're welcome! Who builds cool things, gets good compliments! :D

killjoy (author)2008-12-31

Wow that is amazing good luck I hope the best for you to win. P.S. have you had pieces melt i built a similar engine and due to friction my engine started to melt that was probably because i used a super motor and was at 4200 RPM :)

s0lekill3r (author)killjoy2008-12-31

I never ran it for long periods of time so I never had problems with pieces melting.

killjoy (author)s0lekill3r2008-12-31

Lol I ran it for less than a minute btw are you going to post this i have a dragster that i made that would be perfect for this.

PineapplebobTheGreat (author)2008-12-30

Amazing. 5 stars. I didn't have time to enter for the first tournament, but there's no chance I could have gotten past you anyway.

I don't know about that, you make some pretty awesome stuff but thanks anyway.

CameronSS (author)2008-12-30

Finally, a project that realizes the actual potential of K'Nex! I am in awe/shock/amazement/stupor/wow!

and that's the first +5 I've given to a K'Nex Slideshow

shadowninja31 (author)2008-12-30


pls (author)2008-12-30


Der Bradly (author)2008-12-30

Awesome! 5* but Can you please post instructions here or on KI

lebowski (author)2008-12-30

Let's see an Instructable! It looks like you have all of the pictures. Nice work!

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