danlandberg
Active Member
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I'm looking at one on Google Play, it asks a couple of specs, and a couple of targets. Want to put in factual readings, build one out of cardboard, see how it looks and then go from there.that sorta sounds like a reference to short circuits, need input...
mh-aerotools has a free java app for tuned pipes. not great but they work, for a freebie.
be warned, you need a fairly old java to run it, unless you install it and run it that way...
also has a very handy silencer calculator, you can punch in various figures, get an idea of what attenuates what, and it actually works very well
sticking the stinger or outlet pipe virtually all the way into the pipe reduces a lot of the noise. just make sure it isnt sitting halfway into the "reversion" cone, it stuffs things up seriously.
me myself use 2 stroke wizard pro..i preferred version 3 to 5, and cant really say anything about the "duel" add on program now supplied with it(only tried making one with the extension once, maybe if i had more patience to experiment with various mesh sizes?). pretty cheap, seems to work ok though.
never had a justifiable reason to buy any expensive stuff like "MOTA"... all the forum blurbs elsewhere say it pops out dimensions fairly similar to the cheaper 2 stroke wizard anyways.