Need help quick! ---sound requirements?

[jackflack44]

I have acess to a sound meter For the next 2 hours and just out of curiosity was wondering how the AMA tests sound and if my '03 KX100 will meet the requirements... Thanks in advance!!!
--Dylan

 

[RM85rider123]

start your bike and put it behind the exhaust.

 

[Rich Rohrich]

http://www.sae.org/technical/standards/J2825_200905

 

[jackflack44]

Why would I want to pay for it...

 

[Patman]

So you could do it the correct way? Otherwise just put it behind your bike, I'm sure that's exactly what the technical standards call for LOL!

See grasshopper there is a saying Quality / Speed / Price pick two and sacrifice the third.

 

[jackflack44]

Thank you Master ;)

 

[jackflack44]

BTW, at idle I was 87 db, 1/3 throttle was 91 db, 1/2 was 93, and full throttle letting it rev up got to 110 db :whoa: However, I still pass AMA sound requirements :) Some sound tests show that pro motocross bikes can get up to 132 db at the dyno. FYI, I tested according to what I could find for free, which is testing at a 45 degree angle from the pipe from 50 cm away.

@Patman:Have you ever ridden at the Waco Eagles club?

 

[Patman]

Nope I leave that to my Amigo that shares my birthday, lives up there and plays guitar. I stick to the trees, creeks and rocks of Central Texas.

 

[jackflack44]

I thought Waco was considered Central Texas?

 

[Patman]

I consider Waco 1/2 way between Austin & Dallas.

 

[jackflack44]

Ok. Have you ever been to crooked creek cycle park?