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MX | Off-Road Gear Info & Reviews
DB Snorkel, less sound = more ground
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[QUOTE="KTM Mike, post: 971366, member: 22658"] [b]9 db Reduction - Measured and for real![/b] At a recent Michigan CCC event (fall color tour) we had my sons quad (2000 Yamaha Blaster 200cc two stroke, on first overbore, FMF Fatty pipe, TCII silencer (non SA), with Cobra Sparky added, milled head (.010"), FMF torque reeds and moose torque reed spacer block.) tested with and with out the snorkle. With the snorkle it came in at 89 db - rather nice, well below our 94db requirement! :cool: Without the snorkel 98 db! Now clearly his silencer needs to be repacked (I am sure it was not that loud this spring - certainly the snorkle masked the repack need!), but regardless - a 9 Db difference is HUGE! They pretty much did the test by the book (I had explained i wanted good readings for comparison purposes) - they looked up the rpm in the book, took the reading at the specified rpm etc. (for the life of me i cant figure out how they use those thingys to determine engine RPM!) To me the absolute value of each reading is not what is significant - what is significant is the amount of reduction (circumstance between the two readings would be the same theoretically - so the amount of change should be accurate I would think). Bottom line is - we are thrilled with the noise reduction! No detectable power differences at all - and way quieter! We ended up discussing the snorkle with several people that happened to be nearby when we tested it - every last one of them were favorably impressed and quite interested in it! [/QUOTE]
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MX | Off-Road Gear Info & Reviews
DB Snorkel, less sound = more ground
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