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[jeffoboyo1]

hi guys got me a db meter off ebay, just need to know at what distance i need to hold it from the bike and at what rev's the engine needs to be at to get the reading same as they would at a trackday,
thanks jeffo.......

[NinjaTim]

All the info you need is in the link below

http://www.clubmsv.co.uk/bike-testing-noise-limits.aspx

[jeffoboyo1]

thanks mate have a pony 

[HammyUK]

You actually need to check with each track/company as they all test differently!

[neil]

you can download a free app to your phone

[NinjaTim]

+1 on what Hammy said, apparently Sillystone use whatever method they feel like on a particular day, Have seen forum posts of bikes having passed at Cadwell with 102db but failing 2 days later at Snett with 109db.

Always warming your bike up fully can reduce readings quite a bit, now that you have a meter it would be worth experimenting to see what works best, you could try taking measurements from different positions and angles with the bike at different temps, if you are close to any limits then even the weather conditions and the location of the test could make the difference of passing or failing

[jeffoboyo1]

ok thanks guys will try taking reading for all ways and see if the bike comes in under the max.

[EXJ10R]

what after-market exhausts you running?

[jeffoboyo1]

what after-market exhausts you running?

trackbike got full micron system on it.......

[jimhas7]

Aky Can , link pipe (No boomb box) and 1 metre away at 45 degree angle and 8,000rpm


With Baffle in:





With Baffle out



Passed at Silverstone, Snetterton with baffle in, havent risked it with baffle out


Full system is gonna struggle as its got even less rstriction with no CAT methinks...