MS wrote:

I thought about this, too! All my born days, I just assumed a v8 fires eight times per revolution of the crank. But when you apply the four-stroke-cycle rule to it, you are absolutely correct that it only fires four times per stroke!
Right?

CORRECT!! Seams counter intuitive some how.  That is why even after I thought it through logically  and came to the conclusion that it MUST only be 4 per cycle, I was still not convinced.  So I went out and tested it to know for sure and it is confirmed 2:1

lowercasesteve wrote:

I can't believe you guys did not know that!  I learned about it in Jr High science class. - - - I'm 82 now.

Me too! Actually it was a small engine repair class.

Last edited by RV6 (11/30/2023 8:07 PM)

Heck, I knew my lawnmower engine only fired every other stroke since I was a little kid.

It’s the multiplying times eight that was my downfall.

Now, please excuse Daze and me while we pursue the development of a 2-stroke cycle v8 for retrofit in a Mustang.

MS wrote:

Heck, I knew my lawnmower engine only fired every other stroke since I was a little kid.

It’s the multiplying times eight that was my downfall.

Now, please excuse Daze and me while we pursue the development of a 2-stroke cycle v8 for retrofit in a Mustang.

Twice as much power, heck cut one bank off and make it a straight 4.  Nah, you guys really want to do some engineering figure out the Hot Vapor Engine Smokey Yunick was working on. 
 

lowercasesteve wrote:

TKOPerformance wrote:

MS wrote:

Heck, I knew my lawnmower engine only fired every other stroke since I was a little kid.

It’s the multiplying times eight that was my downfall.

Now, please excuse Daze and me while we pursue the development of a 2-stroke cycle v8 for retrofit in a Mustang.

Twice as much power, heck cut one bank off and make it a straight 4.  Nah, you guys really want to do some engineering figure out the Hot Vapor Engine Smokey Yunick was working on. 
 

I remember an article in Hot Rod about that engine, but I think it was not by Smoky Yunick.  It was some other old time hot rodder.  Maybe Smokey took it up later.  It was a great idea.  heat the gas until it vaporizes before it enters the cylinder.  that creates more complete combustion, and thus more power.  Recently, I saw an article about it still being worked on.  Can't remember where.  

 

Hey Steve, y'all gonna make the Bash down here next year? It's only about five hours away. Easy drive. Sure would be nice to meet you.


 

lowercasesteve wrote:

TKOPerformance wrote:

MS wrote:

Heck, I knew my lawnmower engine only fired every other stroke since I was a little kid.

It’s the multiplying times eight that was my downfall.

Now, please excuse Daze and me while we pursue the development of a 2-stroke cycle v8 for retrofit in a Mustang.

Twice as much power, heck cut one bank off and make it a straight 4.  Nah, you guys really want to do some engineering figure out the Hot Vapor Engine Smokey Yunick was working on. 
 

I remember an article in Hot Rod about that engine, but I think it was not by Smoky Yunick.  It was some other old time hot rodder.  Maybe Smokey took it up later.  It was a great idea.  heat the gas until it vaporizes before it enters the cylinder.  that creates more complete combustion, and thus more power.  Recently, I saw an article about it still being worked on.  Can't remember where.  

 

Smokey holds the patents on it, but may have worked with others on the development.  He discussed it in his autobiography.  Originally he was going to sell or license it to John DeLorean for use in the DeLorean automobiles, but once DeLorean encountered his problems that deal died, and the HVE seems to have gone with it.  This was in the mid '80s.  Smokey converted a couple V engines into straight engines by removing half the cylinders (so V6 to I3, etc.).  He claimed he got 2+ HP per cubic inch, low emissions, and incredible fuel economy, even with a carb and points ignition.  I was very interested in it when I read his book and think I understand how it works in theory, but practically I had a lot of questions, and I think the answers were in old Smoke's head when he left this world.  It boggles my mind to think that no one picked it up with our current quest for efficiency and lower emissions.