Suzuki Quadracer HQ
Suzuki Quadracer HQ Discussion => Suzuki Quadracer HQ - General Discussion => Topic started by: Miloe07 on March 20, 2016, 11:12:39 am
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So a screen type spark arrestor is out of the question then. Have you ever toyed around with a turbine core spark arrestor like some FMF pipes use? I know when I sent you mine to dyno with a 250r pipe you commented that it was kind of restrictive. Do you remember if it was just the super long muffler or was it the actual spark arrestor that was causing the restriction?
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So a cobra clamp on will not work?
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The screen type spark arrestor need over 9 sq in of new screen to have equal flow area to a 1.25" ID tube. The screen type of spark arrestor needs a lot more screen than 9 sq in to over come the flow restriction created when the flow is split up as it flows through more than 4000 holes in 9 sq in. A lot more screen must be added to compensate for the carbon that forms on the screen mesh and to get equal flow resistance to a non spark arrestor muffler.
Trying to determine how quickly the flow deteriorates due to carbon is difficult because of the different riding styles and the oils and oil mixtures used.
My estimate of the amount of forest approved screen would need to be over 40 sq in. I think that 40 sq. in. or more of screen would allow similar flow and maybe allow at least 10 gallons of fuel to be run through the engine between screen cleanings.
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The sparky arrestors usually flare out and provide a bigger surface area that Jerry is talking about.
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Do you think the cobra sparky would flow enough to not overheat the piston on one of your built engines? I was thinking of getting a screen similar to this one and trying it but now I am not going to. I can probably get a sparky insert on the back of the muffler though.
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Might be able to try this
http://www.jdscustoms.com/product/spark-arrestor-kit-screen-style-general-use/
The screens shown in the above link do not have enough surface area when they are new and will add too much back pressure and over heat your piston!!!!!!!!
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Might be able to try this
http://www.jdscustoms.com/product/spark-arrestor-kit-screen-style-general-use/
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I have a Sparky for mine whenever I need a spark arrestor.
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If nobody can help ya, I'd try talking to Q. I'd reach out to him on Facebook.
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I was seeing what those out there with the Dr Q V2 exhaust use for a spark arrestor. I have heard that a cobra sparky with a 2.75" ID works. I was also wondering if maybe another silencer with spark arrestor might work (i.e. turbine core, aaen, etc). Thanks