I 3D Printed an Air-Powered Engine with Honda's VTEC

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Today, I demonstrate my VTEC engine that runs on air. This engine uses Honda's VTEC system to operate well in higher rpms. I show how VTEC works on this 3D printed engine in this video and demonstrate its benefits.
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Footage used (In no particular order):

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Please do a multicylinder version of this with v-tec! That would absolutely awesome, love your ideas man!

louismorgan

For a mechanical solution of actuation of the Vtec you could use a centrifugal clutch or a centrifugal switch

cedricbrun

An external flywheel with weights on springs or gravity, like a steam engine, would work for enabling your VTEC mechanically.

NU

I love the fact you're able to make such seemingly complicated systems far simpler to design and 3d print! I'm actually working on a VVTI system for one of my engines and your video has given me some inspiration. Thanks bro!

AxelDayton

I would suggest to make it multi cylinder if you go for sounds. The timings between cylinders is really important when it comes to the engines melody.

For the automatic vtec engagement maybe use valve float with a really late actuation and a buffer. Meaning that you have a cam with a buffered peek that actuates vtec. At low speeds the buffer compresses and the cam isn't triggering the pin. But at higher speeds the buffer has not enough time to buffer the cam peak and it engages the vtec pin.

redcrafterlppa

amazing work man! Having the pressure work to your advantage to close the valve is pure genius!

hayden

at 7:30 it sounded like a truck sitting on a jake brake haha

slyr

you could make a system sort of like old tachometers, where you have two plates with magnets spinning individually where the vtec plate has a torsion spring to set a minimum rpm
and the other plate is connected to the crankshaft.

susmaster

I'd also add a bushing or bearing between the rod and crankshaft to reduce friction, heat, and wear. Many small 2 cycle engines can run at crazy high rpms and last for years using bearings

lincolnbliss

this also explained vtec in an easy to understand way. commenting for the algorithm, may this video spread far and wide all over automotive youtube!

KoKoKen

Bro that valve design detail at 2:40, genius, absolute genius. I still have to finish the video and im sure ill be further impressed. but that made me press subscribe!

jimmydeslondes

An alternative approach could be to design a flywheel that harnesses the centrifugal force generated during rotation. In the past, many steam engines and other rotating machines were kept at a certain speed using this method. By utilizing the centrifugal force, the flywheel could effectively engage the VTEC mechanism. This could provide a potentially efficient and reliable solution while minimizing additional friction in the system.

Another idea is to utilize the principle of "valve float." This occurs when the camshaft rotates at such high speeds that the valve lifters begin to float and cannot fully return to the base circle of the cam. By incorporating this principle, it would be possible to activate the VTEC mechanism. The advantage of this approach is that it is likely to consume less energy compared to a centrifugal flywheel clutch plate. This could provide an efficient and energy-saving solution for engaging VTEC.

Eddit: other idea

swiebelunknown

Am i the only one who realized how long the video is or shall i just keep it to myself

JoeMama-izxh

amazing project! really cool!
the exhaust is a really cool idea, now add a centrifugal glutch that drives the VTEC mechanism at a given speed ;)

Edward-pwzz