It's 2016 to hell with porting...

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Completely

Did a bunch of work on mine. Was having issues with the carb and ended up retrofitting an 066 carb onto it. Works much better now. Still need to tweak a few things.


Sent from my iPhone using Tapatalk
 
Did a bunch of work on mine. Was having issues with the carb and ended up retrofitting an 066 carb onto it. Works much better now. Still need to tweak a few things.


Sent from my iPhone using Tapatalk

My grandfather bought that one in the early 1980s: boringly reliable.
 
A two-stroke max hp is produced at a temperature that will destroy the engine ... Peak egt occurs at 1 lamda ... about 14.7 to 1 ... if u go richer than 15 to egt will drop and if u go leaner than 15 to egt also drops ... peak power occurs at a slightly lower temp so it's important to know which side of the fence you're on ... I've given away much ...
dr evil quote.jpg
 
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Cousin,

Where do you get Memes like this? It's hilarious, and whomever the creator is, is an Internet Legend, or dare I say, kind of a big deal....
 
Ok ... lemme tell ya a secret ... EGT ... that stands for exhaust gas temperature ... that's the baseline I use guy ... and yes it DOES matter the shapes angles and locations of the outlets ... a two-strokes peak performance comes at a temperature that will destroy the engines components over time ... gotta find the sweet spot with the temp ... a race saw designed to make 3 cuts is gonna have a higher egt than a muffler modded worksaw ... period ...

And how are you getting those get numbers, unless you use an egt reader you don't have that number. Non contact temperature readers give you surface operating temperature which is totally different.
 
And how are you getting those EGT numbers, unless you use an egt reader you don't have that number. Non contact temperature readers give you surface operating temperature which is totally different.
I suspect the numbers he is quoting are from the same source as the rest of what he has posted........his ass.
 
A two-stroke max hp is produced at a temperature that will destroy the engine ... Peak egt occurs at 1 lamda ... about 14.7 to 1 ... if u go richer than 15 to egt will drop and if u go leaner than 15 to egt also drops ... peak power occurs at a slightly lower temp so it's important to know which side of the fence you're on ... I've given away much ...
What you've given away is not what you think it is.

While this is a nice little description of EGT and fuel mixture, the saws your working on have a feedback carb designed to provide a constant lambda (fuel/air mixture). So how exactly is this relevant, given you are doing muffler mods? And exactly how does your muffler mod change said lambda, given the feedback carb?
 
A two-stroke max hp is produced at a temperature that will destroy the engine ... Peak egt occurs at 1 lamda ... about 14.7 to 1 ... if u go richer than 15 to egt will drop and if u go leaner than 15 to egt also drops ... peak power occurs at a slightly lower temp so it's important to know which side of the fence you're on ... I've given away much ...
You've given away nothing. You're not controlling the EGTs with a muffler mod. To suggest as much only demonstrates your lack of understanding of the subject.
 
A two-stroke max hp is produced at a temperature that will destroy the engine ... Peak egt occurs at 1 lamda ... about 14.7 to 1 ... if u go richer than 15 to egt will drop and if u go leaner than 15 to egt also drops ... peak power occurs at a slightly lower temp so it's important to know which side of the fence you're on ... I've given away much ...

So.....not only are you producing a tuned muffler, you've hacked into the M-Tronic system to alter tune?

You really are a gifted man.
 
I know full well there is a fine line where max power is produced just before it starts to melt the dome of the piston but it is still eating itself. Things like this happen:
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Followed by this:
e93b83e854f0a5870557932b64738f05.jpg


Nothing you are talking about is any kind of secret squirrel stuff, anyone who takes 2 stroke performance seriously and takes the time to educate themselves can find exactly what you just said in multiple good books on the subject.
If you are really serious about making power an expansion chamber will make your modified pressure box look silly any day of the week.
 
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