661 Oil Test 32:1 vs 40:1 vs 50:1 ?

[bwalker]

http://www.contactmagazine.com/Issue54/EngineBasics.html

 

[bwalker]

Very well could be, sometimes I get overly specific and break every term down to the smallest principals and miss the forest from the trees.

Your right as far as it goes in this situation the specific stuff I'm referring to is irrelevant to the genertal term you guys are using being detonation.

What you have done is to use terminology relevant to fires and or explosions to talk about what's happening in a two cycle engine. They are not the same environment.

 

[MarkDaGlock]

http://www.contactmagazine.com/Issue54/EngineBasics.html

What you have done is to use terminology relevant to fires and or explosions to talk about what's happening in a two cycle engine. They are not the same environment.

From your own article you linked:

KEY DEFINITIONS Detonation: Detonation is the spontaneous combustion of the end-gas (remaining fuel/air mixture) in the chamber. It always occurs after normal combustion is initiated by the spark plug. The initial combustion at the spark plug is followed by a normal combustion burn. For some reason, likely heat and pressure, the end gas in the chamber spontaneously combusts. The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

The last sentence of that above:

The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

That is exactly what DDT is..... And I've been saying DDT.....

Don't tell me what is or what isn't relevant about anything fire, explosion or combustion related be it in a house, engine, pipe bomb or explosive unicorn. Same scientific terms apply to any of them.

 

[one.man.band]

Very well could be, sometimes I get overly specific and break every term down to the smallest principals and miss the forest from the trees.

Your right as far as it goes in this situation the specific stuff I'm referring to is irrelevant to the genertal term you guys are using being detonation.

...in motors....in simplistic jargon, the mass burn rate % is so fast, it happens while the piston is still on its upstroke.......causing slight to very extreme engine damage to the moving parts.

 

[MarkDaGlock]

God now you've dragged me back into screwing up this thread.

 

[MarkDaGlock]

...in motors....in simplistic jargon, the mass burn rate % is so fast, it happens while the piston is still on its upstroke.......causing slight to very extreme engine damage to the moving parts.

Agree with everything you've said.

 

[one.man.band]

And I am asking what your calculations were. Or what you have read.

calcs and a how to........are, and have been posted on another site. don't feel the need to post the same information here.

 

[bwalker]

From your own article you linked:

KEY DEFINITIONS Detonation: Detonation is the spontaneous combustion of the end-gas (remaining fuel/air mixture) in the chamber. It always occurs after normal combustion is initiated by the spark plug. The initial combustion at the spark plug is followed by a normal combustion burn. For some reason, likely heat and pressure, the end gas in the chamber spontaneously combusts. The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

The last sentence of that above:

The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

That is exactly what DDT is..... And I've been saying DDT.....

Don't tell me what is or what isn't relevant about anything fire, explosion or combustion related be it in a house, engine, pipe bomb or explosive unicorn. Same scientific terms apply to any of them.

It happens and that's what was being argued.

 

[Trx250r180]

I'll be back later,need to get some oil from the bike shop .

 

[bwalker]

calcs and a how to........are, and have been posted on another site. don't feel the need to post the same information here.

Have a link? Send it in a pm if you don't want to post it.

 

[MarkDaGlock]

I just proved you wrong with your link.

The way you are using the term detonation is not the scientific way regardless of what it's being used about.

You article refers to exactly what DDT is

Deflagration (normal burning of the fuel in the engine) evolving into a detonation .

Like your article says it has to happen after the fuel is already ignited (in process deflagrating) when interrupted abruptly causing it to evolve into a detonation....

The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

 

[MarkDaGlock]

Perhaps a Mod can just preemtively ban me, I'm sure at some point here I'll say something to deserve it. ​

 

[one.man.band]

Perhaps a Mod can just preemtively ban me, I'm sure at some point here I'll say something to deserve it. ​

typical oil thread. no big deal.

 

[SAWMIKAZE]

I like how current members create a new identity to argue this stuff in fear of doing it under their current username to spare themselves the ridicule...i love it.

 

[MarkDaGlock]

typical oil thread. no big deal.

Lol

I like how current members create a new identity to argue this stuff in fear of doing it under their current username to spare themselves the ridicule...i love it.

Do you mean me?

 

[Trx250r180]

The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

I think Ben said something along this line in response to my preignition description .

 

[MarkDaGlock]

I think Ben said something along this line in response to my preignition description .

He did, and I've even told him were talking about the same things but arguing semantics.

What I said is the Detonation in these engines is not a pure form of a detonation it is a DDT which is what it would have to be to happen delayed until after the spark.

 

[MarkDaGlock]

Anyways, going flying. Gotta love taking extra days off! Hell maybe some day I'll fly over to Grawn and argue with Ben over a cup of coffee lol. Just cause I argue doesn't mean I don't like someone. We really don't even know each other for the most part.

 

[bwalker]

I just proved you wrong with your link.

The way you are using the term detonation is not the scientific way regardless of what it's being used about.

You article refers to exactly what DDT is

Deflagration (normal burning of the fuel in the engine) evolving into a detonation .

Like your article says it has to happen after the fuel is already ignited (in process deflagrating) when interrupted abruptly causing it to evolve into a detonation....

The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

Its not the way I am using the term..it's the way engineers who design engines use the term.. it's the correct usage.
And no shat it happens after the plug fires..you said it doesn't happen at all!

 

[Moparmyway]

Thanks Mopar!

I've heard nothing but good things on the K2 I'll have to order some. With the 800 were you using the off road for lower flashpoint or the road for film strength? I've heard the road seems to cause a lot more splooge in the muffler but don't have much experience with it.

Been using 800 off road