Engine technology free-for-all

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
J.A.W.
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Re: Engine technology free-for-all

Post by J.A.W. » Wed Nov 05, 2014 2:08 am

olefud wrote:This may afford a bit more insight into the various country's and engines tradeoffs and oversights;

http://books.google.com/books?id=lo9TAA ... ve&f=false

Yes - that venerable tome is a real classic, albeit perhaps best seen today with due awareness of
the limitations of the then available information, & also by the technical values (bias) of its authors..

Perhaps old man Honda was over-sold on their views of the merits accruing to air-cooling?
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J.A.W.
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Re: Engine technology free-for-all

Post by J.A.W. » Fri Nov 07, 2014 8:30 am

From the same decade (70+ years ago) is this engineering appraisal..

http://www.flightglobal.com/pdfarchive/ ... 01590.html

.. of the inherent advantages of DI/SI 2-stroke recip' mills, for aero engines..

But - their application potential in aviation was, of course cut short by the advent of gas turbines..

..yet the power-density formula still stacks up for shaft-power uses..
Dr Moreau sez..
"Who breaks the law... goes back to the House of Pain!"

J.A.W.
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Re: Engine technology free-for-all

Post by J.A.W. » Thu Nov 13, 2014 3:24 am

The Napier Deltic CI 2-stroke phasing/timing explained.. http://www.pigeonsnest.co.uk/stuff/deltic/chapter4.pdf

Perhaps Manolis could do a triple rotor flyer - using some of these design principles?
Dr Moreau sez..
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countersteer
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Re: Engine technology free-for-all

Post by countersteer » Sat Nov 29, 2014 9:50 pm


J.A.W.
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Re: Engine technology free-for-all

Post by J.A.W. » Sat Nov 29, 2014 10:11 pm

Compact for sure, C, but not much power.. ..a current showroom kid's 85cc 2-stroke MX bike is good for well over 20hp..
Dr Moreau sez..
"Who breaks the law... goes back to the House of Pain!"

Ciro Pabón
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Re: Engine technology free-for-all

Post by Ciro Pabón » Sat Nov 29, 2014 10:53 pm

Well, if it´s for compactness, the word is Cox.

I was 11 years old when I disassembled one and I fell in love with it.

80 watts at 22600 rpm, that's 0.1 Horsepower in 0.049 cubic inches (0.82 cubic centimeters)

This is what legends are made of
Image

This engine is indestructible. Bought in 1979, already used, it can survive any crash while running at 22000 rpm. Forged, not casted. Beautiful. For grandsons, best gift
Image

William Selzer, designer extraordinaire, maker of diminutive immortal engines, craftman
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Last edited by Ciro Pabón on Sat Nov 29, 2014 11:02 pm, edited 1 time in total.
Ciro

J.A.W.
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Re: Engine technology free-for-all

Post by J.A.W. » Sat Nov 29, 2014 11:02 pm

Hell yeah C-B,
- & who doesn't love the smell of bean oil & nitro/methanol in the mornin'...
Dr Moreau sez..
"Who breaks the law... goes back to the House of Pain!"

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Re: Engine technology free-for-all

Post by Ciro Pabón » Sat Nov 29, 2014 11:04 pm

Sure, J.A.W., there is no meth like nitrometh.
Ciro

Brian Coat
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Re: Engine technology free-for-all

Post by Brian Coat » Thu Dec 04, 2014 6:41 pm

Free for all ...

Hydrazine: Makes nitro seem like Evian.

J.A.W.
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Re: Engine technology free-for-all

Post by J.A.W. » Thu Dec 04, 2014 9:48 pm

Here is a paper showing how Nazi rocket scientists rated their fuels..
.. such as hydrazine, but as we know, even diesel fuel rates as rather violently energetic..

http://www.cdvandt.org/Wunderwaffen-file-11110.pdf
Dr Moreau sez..
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Re: Engine technology free-for-all

Post by Brian Coat » Fri Dec 05, 2014 10:06 pm

Thanks for the info, J.A.W.

This (allegedly) shows what happens if you mix it with nitromethane and put it in a 1960 V8 ... !

http://www.competitionplus.com/2004_10_ ... azine.html

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Re: Engine technology free-for-all

Post by J.A.W. » Sat Dec 06, 2014 3:15 am

Well, - the term 'blown' surely applies to that bisected Hemi, B-C..

..( & just to be a stickler -its a `50s, 1st gen unit).
Dr Moreau sez..
"Who breaks the law... goes back to the House of Pain!"

riff_raff
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Re: Engine technology free-for-all

Post by riff_raff » Sun Dec 07, 2014 7:11 am

J.A.W. wrote:Here is a paper showing how Nazi rocket scientists rated their fuels..
.. such as hydrazine, but as we know, even diesel fuel rates as rather violently energetic..
The hypergolic propellant mixture you noted MMH/N2O4 (monomethyl hydrazine and nitrogen tetroxide) is still commonly used for attitude control thrusters on many space vehicles. The result of MMH fuel coming into contact with N2O4 oxidizer is an extremely energetic chemical reaction. When the small RCS thrusters on a spacecraft using these propellants are cycled, it produces a very loud "bang".

The downside is that MMH is extremely toxic.
"Q: How do you make a small fortune in racing?
A: Start with a large one!"

Brian Coat
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Re: Engine technology free-for-all

Post by Brian Coat » Sun Dec 07, 2014 5:09 pm

Re: "...( & just to be a stickler -its a `50s, 1st gen unit)."

The alleged 204 mph run was in 1960, is all I meant. Apologies if this was misleading.

As you correctly point out, the unit obviously had to be a first gen hemi because (1) it says so in the article ('392') and (2) the 2nd generation 'Elephant Motor' was not yet introduced.

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Re: Engine technology free-for-all

Post by J.A.W. » Mon Dec 08, 2014 1:17 am

Yeah B.C., those 1st gen Mopar Hemi mills were a well engineered unit,
& it would take some force to split that block in twain - as shown..

AFAIR, the hi-po Hemi was the 1st Detroit mass-production V8 to boast 1hp-per-cubic inch displacement,
- but it was dropped from production in the late `50s in - favour of the lighter, cheaper to make 'Wedge'..
Dr Moreau sez..
"Who breaks the law... goes back to the House of Pain!"