Evolving the Side valve flat head design idea
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Re: Evolving the Side valve flat head design idea
The single valve version concept uses a slide rather than a valve
but needs plasma sprayed low friction coating along with secondary mazda
rotary apex seal springs. Also is correctly a side valve setup but sits higher
up in the head and allows a more direct 45 degree inlet and 30 degree exhaust port.
Its for another thread though as its for a 2 stroke e85 weed wacker setup.
but needs plasma sprayed low friction coating along with secondary mazda
rotary apex seal springs. Also is correctly a side valve setup but sits higher
up in the head and allows a more direct 45 degree inlet and 30 degree exhaust port.
Its for another thread though as its for a 2 stroke e85 weed wacker setup.
Re: Evolving the Side valve flat head design idea
Whenever someone says an engine is "torquey" my brain says "no power".
Re: Evolving the Side valve flat head design idea
How about putting the valve seats in the head along with both ports so the valves operate in reverse??
The valves would still be in the block so it would still be a flathead... Only the seats and ports would be in the head...
pdq67
The valves would still be in the block so it would still be a flathead... Only the seats and ports would be in the head...
pdq67
Re: Evolving the Side valve flat head design idea
Seats in the head and valves in the block. How exactly does that work???
Re: Evolving the Side valve flat head design idea
The cam is made so that the valves seat in the seats in the head!!
There will however be valve stems in the way in the combustion chamber when the valves operate.
I personally like the I want to say the, Oakland, flat head V-8 that had the valves in the block horizontally located. The cam in the engine v operated the valves by using vertical rockers
I am pretty sure the H.A.M.B. has a really long thread on it with a section view picture of this engine AND I am right in the middle of the thread.
pdq67
There will however be valve stems in the way in the combustion chamber when the valves operate.
I personally like the I want to say the, Oakland, flat head V-8 that had the valves in the block horizontally located. The cam in the engine v operated the valves by using vertical rockers
I am pretty sure the H.A.M.B. has a really long thread on it with a section view picture of this engine AND I am right in the middle of the thread.
pdq67
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Re: Evolving the Side valve flat head design idea
Please explain just what does this mean.pdq67 wrote: ↑Sat Dec 28, 2019 1:14 pm The cam is made so that the valves seat in the seats in the head!!
There will however be valve stems in the way in the combustion chamber when the valves operate.
I personally like the I want to say the, Oakland, flat head V-8 that had the valves in the block horizontally located. The cam in the engine v operated the valves by using vertical rockers
I am pretty sure the H.A.M.B. has a really long thread on it with a section view picture of this engine AND I am right in the middle of the thread.
pdq67
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Re: Evolving the Side valve flat head design idea
Stan,
It may not be possible to do what I am talking about which is just design the cam so that at what is open on a standard cam will be closed with the seats in the head!
Maybe can be done using a Ducati type engineered, "Desmodromic", valve system's positive valve retention, who knows???
pdq67
It may not be possible to do what I am talking about which is just design the cam so that at what is open on a standard cam will be closed with the seats in the head!
Maybe can be done using a Ducati type engineered, "Desmodromic", valve system's positive valve retention, who knows???
pdq67
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Re: Evolving the Side valve flat head design idea
I suppose you mean this kind of flathead engine.pdq67 wrote: ↑Sat Dec 28, 2019 1:14 pm
I personally like the I want to say the, Oakland, flat head V-8 that had the valves in the block horizontally located. The cam in the engine v operated the valves by using vertical rockers
I am pretty sure the H.A.M.B. has a really long thread on it with a section view picture of this engine AND I am right in the middle of the thread.
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"Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere."
– Colin Chapman, design engineer, inventor, and founder of Lotus Cars
– Colin Chapman, design engineer, inventor, and founder of Lotus Cars
Re: Evolving the Side valve flat head design idea
That's it Nikolas!!
I think Pontiac ended up with it around '32 or so, but canned it and kept their straight engines.
Please check me here??
pdq67
I think Pontiac ended up with it around '32 or so, but canned it and kept their straight engines.
Please check me here??
pdq67
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Re: Evolving the Side valve flat head design idea
There is also a nice view to the valve train.
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"Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere."
– Colin Chapman, design engineer, inventor, and founder of Lotus Cars
– Colin Chapman, design engineer, inventor, and founder of Lotus Cars
Re: Evolving the Side valve flat head design idea
The horizontal valve design had a brief vogue in the late 1920s, but died out in the 1930s. The Auburn 12 became the American-LaFrance V12.
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Re: Evolving the Side valve flat head design idea
I'd like to see drawings of Cadillac V-16 flathead engine. Anyone?
"Adding power makes you faster on the straights. Subtracting weight makes you faster everywhere."
– Colin Chapman, design engineer, inventor, and founder of Lotus Cars
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Re: Evolving the Side valve flat head design idea
http://www.alfv12.com/images/alfv12/tn_002.jpg
Hey ! That's a motor. Must have a couple of electrical connections somewhere.
Hey ! That's a motor. Must have a couple of electrical connections somewhere.
Re: Evolving the Side valve flat head design idea
How about a Roller cam, 452 CI, OHV Cad V16?Nikolas Ojala wrote: ↑Fri Jan 03, 2020 7:02 pm I'd like to see drawings of Cadillac V-16 flathead engine. Anyone?
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