Two-stroke performance tuning?

[FastFred]

SS90's real Industry experience doesn't seem to have carried this thread very far, pitty.

[FastFred]

At full power, some fuel does pass the jet three times.

<iframe width="420" height="315" src="http://www.youtube.com/embed/KcNfci9OruU" frameborder="0" allowfullscreen></iframe>

ss90 here is a video clip to help you get your head around it.

I know you told us it does int happen but it does.

[mr bucketracer]

is it time for a basic 2 stroke tuning thread ? simple spacers under barrels and simple measurements etc ? reading the 85mx thread there seems to be a problem ? sorry ese but your thread is over my head:(

[TZ350]

is it time for a basic 2 stroke tuning thread ? simple spacers under barrels and simple measurements etc ? reading the 85mx thread there seems to be a problem ? sorry ese but your thread is over my head:(

SS likes to talk himself right even when he is plainly wrong and killed his own thread by picking fights with people who disagreed with him. You can try and get him back but I am afraid you may only get simplistic answers and misinformation like this gem.


In an effort to get some clear information written before the local fools start replying.

Do you know of any material (preferably not web based) that can accurately quote the VE of a performance two stroke?

I maintain that a performance two stroke IS MOST CERTAINLY NOT "SUPERCHARGED".

For the sake of "science" I will agree that you COULD consider there is a slight "SUPERCHARGE" "EFFECT" from an expansion chamber, however, that alone (the effect) does NOT constitute a "supercharged" engine, anymore that an airbox does.

Essentially, an expansion chamber pushes "HALF FUCKED" over heated low density air, fuel, and particle matter back in to the combustion chamber.

How does that constitute "a supercharged engine"?
:doobey:

[TZ350]

So how about telling us the modern and correct way. Or is it so secret no one else is allowed to know?I would LIKE to skunk, but I am worried that if I did, given the fact that Teezeetreefiddys engine (apparently) is "overheating" and requires dubious cooling efficiency improvements, (at a "wopping" 15.5 P.S) if I was to tell him how to make more power, it may well cause a Nuclear Holcaust of biblical proportions as it headed down the back straight, causing widespread destruction,and global warming of unprecedented proportions.

I don't want that on my head.

Mind you, he probably still wont win a race.

:laugh: Actually MrBucketracer, there is some gold on here....