2 stroke pipe wrapping

[tribalbc]

Those of you that run 2 strokes, do you wrap your pipe?
Pros and cons besides saving your pants?
Any tuning differences?

I put a gnarly pipe on my kx500 thinking the thicker walled pipe would have less extreme temp swings than your standard pipe. I am actually surprised how hot my pipe gets, and it does hold it's heat well. Just wondering if there were any advantages to the full wrap.

 

[wwillf01]

Those of you that run 2 strokes, do you wrap your pipe?
Pros and cons besides saving your pants?
Any tuning differences?

I put a gnarly pipe on my kx500 thinking the thicker walled pipe would have less extreme temp swings than your standard pipe. I am actually surprised how hot my pipe gets, and it does hold it's heat well. Just wondering if there were any advantages to the full wrap.

I have had zero issues not wrapping... I have one yz250 with a carbon guard and one without. Very little difference just seems like power is delivered in different rpm windows... but the difference is minimal. I went pro circuit platinum 2... 2 seasons on the pipes...

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[tribalbc]

Can't say I have had any issues either other than burning a couple of pairs of pants. I will say my pipe runs hot. Like I would say hotter than any 2 stroke I have ever owned.
I have limited experience with a kx500, I bought this bike mid season last year and threw the track on it. My timing was slightly retarded last year so I figured that contributed to pipe heat. But this year I am running quite advanced timing and she still gets hot.
So pant protection made me think about doing a wrap, just was wondering if there were any other advantages.

 

[eric82930]

On deep days they still get hot enough without a wrap it just takes about 3 more seconds to heat up enough to hit that last 200 rpm over Rev on the top of the power band.

 

[wwillf01]

Can't say I have had any issues either other than burning a couple of pairs of pants. I will say my pipe runs hot. Like I would say hotter than any 2 stroke I have ever owned.
I have limited experience with a kx500, I bought this bike mid season last year and threw the track on it. My timing was slightly retarded last year so I figured that contributed to pipe heat. But this year I am running quite advanced timing and she still gets hot.
So pant protection made me think about doing a wrap, just was wondering if there were any other advantages.

On the yz and cr500 I have had zero pants burning issues for sure... I even ran snowmobile pants for years before I got snowbike specific pants this year. My timing is advanced on all of my 2 stroke machines ... but we ride high altitude...

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[shortstuff]

We ceramic coat all our two stroke pipes works really good. But I havent rode or been around one that hasnt been coated so cant tell you if their is a difference or not.

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[cbc76am]

The difference in pipe temperature changes the return pulse of the exhaust wave to the piston face. That will lower the peak power output in the range a few hundred RPM. Meaning more torque in a way when it's deep. When wide open you'll loose peak RPM HP... again, just until the pipe catches up and gets back up to 1200 at the neck and 400 to 600 in the bulk of the expansion chamber. It's not worth wrapping it. a guard to shield some snow off the body is really all you need to do. Ceramic coating helps to hold the heat but it also reduces the total heat the pipe can achieve loosing peak HP when it's not contacting snow. basically making the pipe run like it's cold the entire time. (this is dyno proven - google around and you'll find it)

Raw steel with clear coat make the most power. the paint will burn off the initial bend from the neck, re coat it regularly to keep it rust free.