How to make Predator 212 deadly quiet?

[jangalomph]

In the kart I'm building, I've just got a horn muffler on it. Not sure why it'd cause a problem, but i dont think there would be much back pressure.

 

[poordad]

something like this could be used with a smaller atv muffler to adjust the amount of flow / noise.

http://www.ebay.com/itm/190741896340?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648

 

[Doc Sprocket]

Once again- there is a major difference between the concept of "Back pressure" AKA Static Pressure, and "Cylinder Scavenging".

 

[jamyers]

Once again- there is a major difference between the concept of "Back pressure" AKA Static Pressure, and "Cylinder Scavenging".

And once again, a 4-cycle engine does not need/want pressure in the exhaust, quite the opposite.

 

[OzFab]

And once again, a 4-cycle engine does not need/want pressure in the exhaust, quite the opposite.

And, once again, it's not a 4 cycle engine, it's a 4 stroke engine

 

[GreyW00lf]

I hate to do this But
The terms 4 stroke and 4 cycle can and have been used interchangably for ages, as have 2 stroke and 2 cycle
they (Stroke or Cycle) both mean the same thing...

Also
4 cycle/stroke has 4 strokes/cycles to the piston = intake, compression, power, exhaust.

www.youtube.com/watch?v=2Yx32F1cncg

this is what they mean by 4 stroke/cycles

Or

www.youtube.com/watch?v=IYWUWMmimjQ&feature=related

this one with a voice natratter

 

[jamyers]

GAAAA!!! Hoist on me own petard!

(bunch of ocd nit-pickers...just like me, lol)

 

[GreyW00lf]

GAAAA!!! Hoist on me own petard!

(bunch of ocd nit-pickers...just like me, lol)

just putting the facts right in your face!

 

[Doc Sprocket]

Jeez! Talk about your semantics! I thought I was bad!!!

Fab- you really shouldn't have gone there...ut:

 

[souperman000]

And, once again, it's not a 4 cycle engine, it's a 4 stroke engine

I hate to do this But
The terms 4 stroke and 4 cycle can and have been used interchangably for ages, as have 2 stroke and 2 cycle
they (Stroke or Cycle) both mean the same thing...

Also
4 cycle/stroke has 4 strokes/cycles to the piston = intake, compression, power, exhaust.



Or

Fab- you really shouldn't have gone there...ut:

I wonder if he'll ever live this one down...:toetap05:

 

[Doc Sprocket]

Not if I can help it. Muahahahahahahahahaaaaa.......

 

[OzFab]

The terms 4 stroke and 4 cycle can and have been used interchangably for ages, as have 2 stroke and 2 cycle
they (Stroke or Cycle) both mean the same thing...

It must be an American thing then coz, with over 25 years experience in the auto industry, I've never heard of an engine referred to in terms of cycles.

When I think of the word "cycles" I think of circles as in bicycle literally meaning two circles (wheels), hence, one engine cycle is equal to one revolution...

However, (& this is where it gets a bit confusing) I also understand the concept of cycle to mean an event or series of repeated events, therefore, each stroke is equal to one cycle &, therefore, 4 strokes would be equal to 4 cycles.

But wait, there's more: I mentioned that the word cycle can mean "a series of repeated events" so, in this case, the 4 strokes of an engine would technically be 1 cycle

 

[souperman000]

However, (& this is where it gets a bit confusing) I also understand the concept of cycle to mean an event or series of repeated events, therefore, each stroke is equal to one cycle &, therefore, 4 strokes would be equal to 4 cycles.

But wait, there's more: I mentioned that the word cycle can mean "a series of repeated events" so, in this case, the 4 strokes of an engine would technically be 1 cycle

Just stop while your ahead will you??

 

[jamyers]

Po-tay-to, Po-tah-to, To-may-to, To-mah-to - let's call the whole thing off!

And go cut donuts...

 

[GreyW00lf]

Just stop while your ahead will you??

About Fabroman, he's

 

[jman231994]

Im gonna stand by fabroman on this one. In Australia it is NEVER called a cycle, I can understand why it could be called that, but when the word stroke is already in the engine vocab, why not use it for something else aswell haha.

Whilst were on the topic....americans in general do have a tendency to change the english language for no apparent reason haha. Not a matter of individuals having bad grammar or vocab, just a different knowledge of the language as a whole......I'm going to say the cycle/stroke thing is because of this, just like the mom/mum, flavour/flavor, vehicle/vee-hickle thing

 

[fowler]

ha yes the US has changed quite a bit

iv never heard of a 4 cycle

we could write up a large list here
starting with running imperial measurement
that drives me mad as the equiment u exprt is all imperial as well

 

[OzFab]

Thanks for the back up guys

Im gonna stand by fabroman on this one. In Australia it is NEVER called a cycle, I can understand why it could be called that, but when the word stroke is already in the engine vocab, why not use it for something else aswell haha.

Whilst were on the topic....americans in general do have a tendency to change the english language for no apparent reason haha. Not a matter of individuals having bad grammar or vocab, just a different knowledge of the language as a whole......I'm going to say the cycle/stroke thing is because of this, just like the mom/mum, flavour/flavor, vehicle/vee-hickle thing

For some reason Americans don't like the letter "U", it's dropped from a massive amount of words. I know a reeally funny joke on the subject which, unfortunately, I can't put here; I'll PM you guys...

$ scarletvw: this has got waaaay fftopic: Sorry man...

 

[Doc Sprocket]

Fab- You HAVE to PM me that. As far as the rest- whaddya expect? Even your TOILETS flush bloody backwards... LOL

Okay- kidding aside- Proper north American terminology is two- and four-cycle.

 

[OzFab]

Fab- You HAVE to PM me that.

Not sure you'll like it coz I think it applies to you too but, done

As far as the rest- whaddya expect? Even your TOILETS flush bloody backwards... LOL

Hey, that's not our fault; Paul get's that too you know...

Okay- kidding aside- Proper north American terminology is two- and four-cycle.

Understood