There is a reason you have a shop full of Wally's. Common sense and being able to think outside of the box (computer programming) is something most people for whatever reason just can't grasp any more. My Dad has always told me the day you know everything and are unwilling to learn something new is the day you will start getting passed by your competitors. Thank you sir for sharing some of your overwhelming wisdom. It's very much so appreciated!!
Good stuff George. Also, CZcams has it set up where if You start Your livestream in one camera orientation, You CANNOT change it to the other mid session. Thanks for All You share!
Thanks again George for another good episode well explained. I know it kind of gets confusing sometimes dealing with all these numbers but you did a magnificent job. God bless see you next week my friend
This was definitely an interesting explanation and I'm glad you showed it compared to a 4v engine as well. It would be nice if there could be a dyno shootout between equal cc, equal valve angle 2v and 4v engines, and then change valve sizes to see the changes, then cams to see the changes again. I know, that's a whole lot of money, and time though... But it sure would be a great series. 💪 Thanks for the explanation... Looking forward to the next one. 💯
Amazing way to describe the actual dynamics of the engine combination regarding valve sizing vs cam timing relationship. Ive been struggling with a way to formulate seeing the results of more modern OEM engines with far superior heads running less and less cam timing but making more power and better power curves along with seeing the trend of smaller and smaller exhaust valves in aftermarket heads for older architecture engines and trying to reason why. Yes the engine is mechanically pumping the exhaust out of the engine and the exhaust is hot so your mach number is going up and up, but there still is an air speed choke point in the exhaust flow out of the port.
Great content! Why do we use @0.050” numbers for calculating effective compression ratio if we can’t build compression until the valve is closed? Seems we would use @0.006” numbers? Ben Alameda builds SBF drag engines in California and if he has room he sizes up the intake valve not the exhaust valve because he says good low lift flow in the exhaust valve allows raw fuel/air to escape out the exhaust on overlap. This also makes sense to run less duration on a 4V setup, less overlap.... Also Larry Widmer likes a specific exhaust gas speed through the exhaust port for efficiency.....of course he doesn’t share that number....
George in your opinion what would be the optimum exhaust to intake valve ratio? Regardless of how big of a valve you use what would be your target ratio? How much effect will ratio number make?
I feel blessed for you sharing your knowledge with me thank you and God bless you George and Jackie
There is a reason you have a shop full of Wally's. Common sense and being able to think outside of the box (computer programming) is something most people for whatever reason just can't grasp any more. My Dad has always told me the day you know everything and are unwilling to learn something new is the day you will start getting passed by your competitors. Thank you sir for sharing some of your overwhelming wisdom. It's very much so appreciated!!
Thanks for sharing, George!
It's nice to hear from "The Man in the Arena" about how these engines work.
Lovin' my M8...
Good stuff George.
Also, CZcams has it set up where if You start Your livestream in one camera orientation, You CANNOT change it to the other mid session. Thanks for All You share!
Excellent explanation George!
George Bryce, I appreciate you explaining cam timing. You did great!
Thanks again George for another good episode well explained. I know it kind of gets confusing sometimes dealing with all these numbers but you did a magnificent job. God bless see you next week my friend
This was definitely an interesting explanation and I'm glad you showed it compared to a 4v engine as well.
It would be nice if there could be a dyno shootout between equal cc, equal valve angle 2v and 4v engines, and then change valve sizes to see the changes, then cams to see the changes again.
I know, that's a whole lot of money, and time though... But it sure would be a great series. 💪
Thanks for the explanation... Looking forward to the next one. 💯
Thank you Mr. Bryce
Thank you sir👍
Excellent explanation, thanks!
Yes I get it for sure. Made perfect sense 👍
Amazing way to describe the actual dynamics of the engine combination regarding valve sizing vs cam timing relationship. Ive been struggling with a way to formulate seeing the results of more modern OEM engines with far superior heads running less and less cam timing but making more power and better power curves along with seeing the trend of smaller and smaller exhaust valves in aftermarket heads for older architecture engines and trying to reason why. Yes the engine is mechanically pumping the exhaust out of the engine and the exhaust is hot so your mach number is going up and up, but there still is an air speed choke point in the exhaust flow out of the port.
Yes sir thank you. I believe once the exhaust is full talking about the exhaust system. No more intake will go in.
@@GeorgeBryceStar right, if you cant make a depression in the cylinder, you have no pressure differential IE no flow
Thx george well explained now can we through some valve lift in there as well and your thoughts on lift to valve diameter
Great content! Why do we use @0.050” numbers for calculating effective compression ratio if we can’t build compression until the valve is closed? Seems we would use @0.006” numbers?
Ben Alameda builds SBF drag engines in California and if he has room he sizes up the intake valve not the exhaust valve because he says good low lift flow in the exhaust valve allows raw fuel/air to escape out the exhaust on overlap. This also makes sense to run less duration on a 4V setup, less overlap.... Also Larry Widmer likes a specific exhaust gas speed through the exhaust port for efficiency.....of course he doesn’t share that number....
Just have to start the live horizontal. It's weird like that unfortunately. No biggie.
George in your opinion what would be the optimum exhaust to intake valve ratio? Regardless of how big of a valve you use what would be your target ratio? How much effect will ratio number make?
Is there measurable flow as low as .001 to .005? Thanks for sharing with us!
Was that a Harley Head you were using for demo purpose? I never heard you say, but did you ever race Harley's?
so on a m8 a + 3 mm exhaust valve with a +2 mm intake valve
would work out great i'm thinking ?
just for fun
👍####
HELLO
30/30 cam whats the open and close degrees on exhaust and inlet, only ever heard you talk 25 close degrees ABDC on inlet what about exhaust also
8/25
48/15
@@GeorgeBryceStar thanks Bro