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Smallest v12 engine?

Posted: Fri Mar 07, 2014 8:56 am
by Skynyrd
Hand made compressed air v12 engine.

Man I'd love to have the time and the craftmanship this spanish dude has to build his own mini v12. Beautiful work.

https://www.youtube.com/watch?v=3YfTtGCsiD8

Kuddos to him :thumbup:

Re: Smallest v12 engine?

Posted: Fri Mar 07, 2014 10:25 pm
by moby
Beautiful. I wish I had the skills, time and kit to do that.

Can someone please tell me what the "enfriador de agua dulce" is?


Is that an old clip? it is a pushrod engine and would have saved much work to have made it an hc. Is it a copy of an actual motor maybe?

Re: Smallest v12 engine?

Posted: Sat Mar 08, 2014 8:50 am
by Skynyrd
It's the water cooler. I'm not sure, watching the video, what it cools or how it works though.

The v12 in the video is for a scaled ship model so it is probably a copy of an actual naval engine. Don't know too much about the industry to be sure though.

Re: Smallest v12 engine?

Posted: Sat Mar 08, 2014 10:49 am
by moby
Skynyrd wrote:It's the water cooler. I'm not sure, watching the video, what it cools or how it works though.

The v12 in the video is for a scaled ship model so it is probably a copy of an actual naval engine. Don't know too much about the industry to be sure though.
Thanks, so its a diesel then?

Re: Smallest v12 engine?

Posted: Sat Mar 08, 2014 11:31 am
by Skynyrd
moby wrote:
Skynyrd wrote:It's the water cooler. I'm not sure, watching the video, what it cools or how it works though.

The v12 in the video is for a scaled ship model so it is probably a copy of an actual naval engine. Don't know too much about the industry to be sure though.
Thanks, so its a diesel then?
Well its a compressed air engine. It says on the video description that it was made for educational purposes and the decision to use compressed air is to make it cleaner but being naval I guess the real engine would be diesel yes.

Re: Smallest v12 engine?

Posted: Tue Mar 11, 2014 1:27 pm
by Alex53
I'm in awe of the man's skill.

I've love to see it mounted on something and making it move!

Re: Smallest v12 engine?

Posted: Thu Mar 27, 2014 12:38 am
by sloth
Very hard to say this, without sounding like I'm knocking the blokes engineering skill, but an engine that runs on compressed air isn't a technical masterpiece (while it definitely is a machining work of art.) Doing my degree we had to machine a single cylinder compressed air engine, the measure of its design being the minimum psi that was required to keep it idling/not stalling.

A [very] long time ago one of the many Clarkson's programs contained a piece on someone who built a scale model Ferrari.
He spent some stupendously long time making it. Gonna Google it.


found it :
http://www.youtube.com/watch?v=Aq95SZm44IM
Never mind the machine tools, I'd love the spare time to do it, and the fact my wife wouldn't leave me :)

Re: Smallest v12 engine?

Posted: Fri Apr 04, 2014 9:04 am
by POBRatings
These model-makers have such engineering understanding, machining skills, good eyesight and unshaky hands! Fantastic model.
Off topic: the smallest full-size GP V12 engine I can think of was the 1964-5 Ferrari flat-12. Even more incredible was the 1949-54 BRM V16 of 1.5-litres.

Re: Smallest v12 engine?

Posted: Tue Apr 15, 2014 6:04 pm
by RaggedMan
POBRatings wrote:These model-makers have such engineering understanding, machining skills, good eyesight and unshaky hands! Fantastic model.
Off topic: the smallest full-size GP V12 engine I can think of was the 1964-5 Ferrari flat-12. Even more incredible was the 1949-54 BRM V16 of 1.5-litres.
8O Did they use thimbles for pistons?

Re: Smallest v12 engine?

Posted: Sat Jul 26, 2014 2:04 am
by stratos
RaggedMan wrote:
POBRatings wrote:These model-makers have such engineering understanding, machining skills, good eyesight and unshaky hands! Fantastic model.
Off topic: the smallest full-size GP V12 engine I can think of was the 1964-5 Ferrari flat-12. Even more incredible was the 1949-54 BRM V16 of 1.5-litres.
8O Did they use thimbles for pistons?
Not really, the stroke was 47.8mm so the diameter of the the pistons was just under 50mm

in the early 60s honda made race bikes with 4 stroke 4 valve per cylinder 50cc twins such as the RC115

Re: Smallest v12 engine?

Posted: Thu Aug 14, 2014 2:49 pm
by RaggedMan
stratos wrote:
RaggedMan wrote:
POBRatings wrote:These model-makers have such engineering understanding, machining skills, good eyesight and unshaky hands! Fantastic model.
Off topic: the smallest full-size GP V12 engine I can think of was the 1964-5 Ferrari flat-12. Even more incredible was the 1949-54 BRM V16 of 1.5-litres.
8O Did they use thimbles for pistons?
Not really, the stroke was 47.8mm so the diameter of the the pistons was just under 50mm

in the early 60s honda made race bikes with 4 stroke 4 valve per cylinder 50cc twins such as the RC115
I was obviously employing a bit over hyperbole there. :)
But still you got to admit that 50mm (~2") is a mighty small piston in a car.

I bet that thing revved like hell.

Re: Smallest v12 engine?

Posted: Thu Sep 18, 2014 1:16 pm
by Blinky McSquinty
Looks like 12 cylinders isn't enough, here are two videos, one about a W-18 and the other 16 cylinders in 4 banks.

http://youtu.be/_STaG6Tu_Oo

http://youtu.be/YlY_zxgnMAg

Re: Smallest v12 engine?

Posted: Mon Oct 06, 2014 10:38 pm
by Anupam
sloth wrote:Very hard to say this, without sounding like I'm knocking the blokes engineering skill, but an engine that runs on compressed air isn't a technical masterpiece (while it definitely is a machining work of art.) Doing my degree we had to machine a single cylinder compressed air engine, the measure of its design being the minimum psi that was required to keep it idling/not stalling.

A [very] long time ago one of the many Clarkson's programs contained a piece on someone who built a scale model Ferrari.
He spent some stupendously long time making it. Gonna Google it.


found it :
http://www.youtube.com/watch?v=Aq95SZm44IM
Never mind the machine tools, I'd love the spare time to do it, and the fact my wife wouldn't leave me :)
That is gorgeous, sloth - the commitment this guy put towards building the car is unbelievable! Great find!

Re: Smallest v12 engine?

Posted: Thu Nov 20, 2014 3:33 pm
by mac_d
This is the kind of thing I'd love to be good at doing. Unfortunately, I definitely couldn't be bothered with spending the countless hours practising and learning to get this good.

Pretty cool.

In a not really very related note, I saw a Merline V12 engine at the Imperial War Museum in London last week. It wasn't small but my god it looked fantastic. This engine, amongst other uses, was the one that powered the Spitfire.

Re: Smallest v12 engine?

Posted: Mon Feb 09, 2015 1:25 am
by stratos
speaking of engines in museums there is a brm v16, cut away so you can see the size of the pistons, in the GP collection at Donington.