How Loud


8 replies to this topic
  • Agent2

Posted November 07, 2006 - 06:57 PM

#1

Anyone know how loud a xr650r is in db's - uncorked, stock exhaust with drilled out tip? I remember seeing it on a website, but can't find it.

  • LandSharkGT

Posted November 07, 2006 - 07:09 PM

#2

I remember reading about it and I thought somewhere between 94-98db.

  • frankstr

Posted November 07, 2006 - 08:48 PM

#3

Too Loud IMHO......:mad: :mad:

  • eastreich

Posted November 08, 2006 - 09:15 AM

#4

Mine with a shortened stock can and the drilled out stock tip is between 97-98db on a 'probably-not-quite-right' Radio Shack db meter, using a Husquvarna chain saw tach at 4500rpm. HRC tip on this same meter was at 99db. My old WB R-4 was at close to 104db. My snowmobile, sitting on its metal decked trailer, pegged the meter out at 120db by 5000 rpm. So take these values for what there worth: i.e. you can compare them, but they won't hold up in a court of law (or a rangers ears).

In all honesty, even the drilled out stock tip is too loud when you get it past 1/3 throttle.

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  • Agent2

Posted November 08, 2006 - 09:21 AM

#5

That's the info I was looking for - won't use it in a court of law. Thanks.

  • NAW

Posted November 08, 2006 - 03:59 PM

#6

I have the HRC tip (The baffle/tip that comes with the Honda Un-Corking kit as I recall???) on a stock pipe and tested 96.5 dbA at 3250 RPM in the field. According to the tester. ALMOST legal for Southern Cal standards.

  • eastreich

Posted November 08, 2006 - 04:03 PM

#7

I have the HRC tip (The baffle/tip that comes with the Honda Un-Corking kit as I recall???) on a stock pipe and tested 96.5 dbA at 3250 RPM in the field. According to the tester. ALMOST legal for Southern Cal standards.


That sounds about right since I tested mine at a higher RPM (4500 vs. 3250). Using some header wrap may be able to get you the half db to be legal, but I think that stuff is somewhat of a pain to use.

  • slowxr

Posted November 08, 2006 - 06:48 PM

#8

Agent. My XR is set up as you described. I've had it tested 3 times and it's tested at 94-95dbs.

  • BRPXL600R

Posted November 08, 2006 - 08:38 PM

#9

See I was right, about the 94-98db range. I see that 96db seems to be tha magic number so I would try out som aftermarket pipes as the weight reduction is great and performance factor is even better, but most of all you can repack some of these pipes better than the way it was sent out to you for the sound dept. test then do as you please at your own risk.





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