KDXRIDER.NET

I was wondering if there would be any benefits and/or negatives to "wrapping" a pipe on a KDX? More specifically a 220 with an FMF rev pipe and turbine core 2 silencer. I (sorta) understand the benefits of wrapping headers on a 4 stroke engine in that retaining heat in the exhaust itself allows the spent exhaust gases to "flow" easier. I am not too certain as to how this would apply to expansion chamber on a 2 stroke. Would increased expansion chamber temps possibly be harmful to a small two stroke engine in terms of durability and low-midrange power? Has anyone here tried this on a KDX before (or any single cylinder 2 stroke?).

I guess my main reason for wanting to try this has less to do with a possible power increase and more to do with noise reduction. That and it would make mounting my homemade aluminum pipe-guard easier. Any input appreciated.

"wrapping"

What's that?
If I read correctly, you're talking about wrapping some material (what kind?) around the pipe to raise the temp
I would be scared of overheating and possible damages...

I guess my main reason for wanting to try this has less to do with a possible power increase and more to do with noise reduction

Noise reduction: I have the solution: I'll trade my stock pipe for yours it'll be much more quieter

There shouldn't be any issue with it. How would you keep the wrapping from getting nasty first time out on the trail?

http://www.centuryperformance.com/heatwraps.asp

Dunno if I'd want it trapping in heat or crud, mud and water for that matter.

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m0rie wrote:How would you keep the wrapping from getting nasty first time out on the trail?

DEI High-Temp Silicone Coating™ FAQ
What is the purpose of using HT Silicone Coating™?
HT Silicone Coating has several beneficial purposes on header wraps and metal surfaces. When applied to an exhaust wrap it increases the wraps thermal isolation and resistance. The silicone agent bonds to the surface of the wrap and increases its integrity which reduces the need to re-wrap headers or piping, just re-apply HT Silicone Coating™ routinely. HT Silicone can also be applied to a prepped metal surface where wrapping is improbable. Because HT Silicone Coating™ is silicone based it also can repell water, dirt and oils from any surface. This is especially usefull on header wrap as keeping it free of debris lessens wear and increases it's durability.

What else can HT Silicone Coating™ be used for?
Wherever metal heat absorbtion may exist! The intended use for this product is on header wrap as mentioned above, but HT Silicone Coating™ may also be applied to bare metal headers, exhaust pipes, manifolds, engine blocks, heads, valve covers, oil pans, transmission or rear-end housings, differential covers, brake calipers and even on your barbeque grill.

What temperature can HT Silicone Coating™ withstand?
HT Silicone Coating will effectively withstanding 1500 degees and provide added style.

How is HT Silicone Coating™ applied?
For header wraps it is recommended that HT Silicone be applied in several light coats for optimal thermal performance and cleanliness. For bare metal surfaces it is recommended that the surfaces be properly prepared before applying.

Another option would be to send it to a header coating company and have it hight-temp or ceramic coated. It would be more costly, but you wouldn't have to worry about getting dirt and water trapped under a wrap.