Mastermind Meets The MS661 Again

[KG441c]

Bore size, rod length, and strike will make .000 VS ° different for engine to engine. So the best thing to do is check that with a wheel at the port height you are looking at altering.

Too much primary compression can slow down the engine due to pumping loses. The same is true with too much cranking compression. This is why race saws, and work saws are so far apart on build style.

So when building a work saw for example, when altering the transfers to create a smooth less turbulent flow to meet in the combustion chamber for maximum efficency is it a balance of transfer port height and shape, width, primary compression and cranking compression?

 

[old-cat]

..any engine builder will tell you that raising compression increases volumetric efficiency.

I'm sorry but from my studies, increased compression increases fuel efficiency (more power from what's there). Volumetric efficiency is stuffing the cylinder with more a/f

 

[bryanr2]

Randy,
Your approach seems so much more complicated then . Dollar for dollar, I think one approach is worth more than the other. It's strange that they cost the same, but dont perform the same.

Holy ****, a quick search on the web has provided me with my new "pot stir" image. I think it will go very well in Mastermind threads.....

 

[Mastermind]

I'm sorry but from my studies, increased compression increases fuel efficiency (more power from what's there). Volumetric efficiency is stuffing the cylinder with more a/f

True. I really wasn't using the correct terminology.

 

[Mastermind]

Higher compression makes the engine make more power from the fuel that is in the combustion chamber.

 

[bryanr2]

Randy,
Your approach View attachment 394309 seems so much more complicated then View attachment 394310. Dollar for dollar, I think one approach is worth more than the other. It's strange that they cost the same, but dont perform the same.

Holy ****, a quick search on the web has provided me with my new "pot stir" image. I think it will go very well in Mastermind threads..... View attachment 394311

I expect that post to get me 100 "likes" by the end of the day.... get busy with the button to the left on the right side of the screeen fellas.

 

[Mastermind]

So when building a work saw for example, when altering the transfers to create a smooth less turbulent flow to meet in the combustion chamber for maximum efficency is it a balance of transfer port height and shape, width, primary compression and cranking compression?

Your might be over thinking this a little.

 

[Mastermind]

Randy,
Your approach View attachment 394309 seems so much more complicated then View attachment 394310. Dollar for dollar, I think one approach is worth more than the other. It's strange that they cost the same, but dont perform the same.

Holy ****, a quick search on the web has provided me with my new "pot stir" image. I think it will go very well in Mastermind threads..... View attachment 394311

You might be stirring deep here. lol

 

[bryanr2]

You might be stirring deep here. lol

Ive made it clear where I stand.

 

[SAWMIKAZE]

I wanna see a pop up lose to a cut squish band..in the worst way

 

[bryanr2]

I can see how some might be afraid to "like" the post. Having had 30 saws ported by the same builder, it's obvious that Im not going anywhere else... so I can state my position.

 

[bryanr2]

I wanna see a pop up lose to a cut squish band..in the worst way

I like this avatar much better than the "hood rat" you had last night.

 

[SAWMIKAZE]

I like this avatar much better than the "hood rat" you had last night.

Im a "wood rat"..not a hood rat

 

[SAWMIKAZE]

Powder mike and daniel son are gonna have those beautiful 064s home soon..im gonna race em with a 8.5cc disadvantage

 

[bryanr2]

Im a "wood rat"..not a hood rat

Maybe it was someone else then, I swear I saw a thug as someone's avatar last night... Oh dear, if it wasnt your's I apologize for the confusion.

 

[bryanr2]

Powder mike and daniel son are gonna have those beautiful 064s home soon..im gonna race em with a 8.5cc disadvantage

what's your weapon of choice?

 

[SAWMIKAZE]

what's your weapon of choice?

461 .. i hope i lose .. bad

 

[KG441c]

Your might be over thinking this a little.

I think what I was trying to ask when altering transfers how important is velocity through them?

 

[komatsuvarna]

This jewel running yet?

 

[Mastermind]

I think what I was trying to ask when altering transfers is how important is velocity through them?

I feel like velocity is very important.......but that's just my gut feeling.