Author Topic: Too noisy for Old Guys?  (Read 5699 times)

Offline Red01

  • Board Homesteader!
  • ***
  • Posts: 8977
  • Are we having fun yet?
Too noisy for Old Guys?
« Reply #15 on: February 01, 2007, 02:10:31 PM »
Quote from: "Dave 02 1200"
I remember that Yamaha had EXUP to provide variable exhaust back pressure.  It increased backpressure at low RPM to increase midrange and it worked.  It opened up at higher RPMs resulting in the best of both worlds.


Yamaha still uses EXUP. The '07 R1 & R6 have it. Several other manufacturers use it, too... for instance the current GSX-R1000, 750 & 600 have it... it's called SET (Suzuki Exhaust Tuning).
Paul
2001 GSF1200S
(04/2001-03/2012)
2010 Concours 14ABS
(07/2010-current)


Offline chevsuz12

  • Board Homesteader!
  • ***
  • Posts: 249
Too noisy for Old Guys?
« Reply #16 on: February 01, 2007, 02:39:37 PM »
Last summer, I repacked my D&D which are known for their ungodly loud noise!  With some industrial furnace insulation and bronze wool.  The insulation is much more dense than the original stuff, wrapped, taped, and re-wrapped and taped.  The result is what has to be the quietest D&D you will ever hear!  Still has a nice deep tone, but very quiet.  It cost only about $25.00 with enough material left over to repack it again!
B12 Streetfighter!

Offline LensWork

  • Board Homesteader!
  • ***
  • Posts: 65
    • http://home.earthlink.net/~lenswork/
Too noisy for Old Guys?
« Reply #17 on: February 01, 2007, 03:15:34 PM »
Quote from: "Red01"
Quote from: "Dave 02 1200"
I remember that Yamaha had EXUP to provide variable exhaust back pressure.  It increased backpressure at low RPM to increase midrange and it worked.  It opened up at higher RPMs resulting in the best of both worlds.


Yamaha still uses EXUP. The '07 R1 & R6 have it. Several other manufacturers use it, too... for instance the current GSX-R1000, 750 & 600 have it... it's called SET (Suzuki Exhaust Tuning).


Buell has a similar system also: Mass Centralized Exhaust. The '04 XB12S that I had used this system. REALLY quite at idle and light throttle, Harley loud @ WOT.
Thanks,

Mike
LensWork

Offline H2RICK

  • Board Homesteader!
  • ***
  • Posts: 508
Too noisy for Old Guys?
« Reply #18 on: February 02, 2007, 12:39:24 AM »
Quote
My goal is to be able to go fast as quietly as possible.
++++1 on that Dave02

Foamy earplugs.....don't leave home without 'em. Once you start using them you'll wonder why you didn't use 'em years ago. I've been using them for 15+ years. You quickly become attuned to surrounding noises of all types after wearing the plugs for (in my case) about 2 months of weekend rides. You may be a faster "learner" than me but give 'em an honest try.
The big thing about foamies is that they eliminate a lot of the eardrum-damaging high frequency noises as well as lowering the overall sound volume.
A little factoid from a sound attenuation course I took many moons ago: for every 1 decibel (A) above ~82dbA the APPARENT[/u] sound pressure to the human ear DOUBLES !!! :shock:
Now you know why OSHA insists that humans be exposed to no more than 80dbA during an 8 hour work day.....even with hearing protection.....and why stock mufflers are also limited to 80dbA.
Ignorance is curable. Stupidity is terminal.
2006 B12S (my new LD road ride)
1976 Suzuki GT550A Mint/Stock w/5K original miles
1978 Kawasaki KZ650C2 Mint/Stock w/2K original miles
1973 Kawi H2A Semi-hot rod
Various other projects in the wings

Offline Big Bo

  • Board Homesteader!
  • ***
  • Posts: 141
Too noisy for Old Guys?
« Reply #19 on: February 05, 2007, 02:00:42 AM »
I hear you. I wear Howard Leight Laser Lite ear plugs, 99% of the time that I am in the saddle. The roar of the mighty B12 with the Two Brothers pipe is wonderful. But combined with the wind I can`t take the noise. My ears would hurt so bad that I was constantly moving, shifting, turnig my head to lesson the noise level. Not anymore, I keep ear plugs in the pockets of all of my riding jackets, and in my tank bag.

Give the earplugs a plug.   :motorsmile:
2002 Silver 1200S
Two Brothers slip on
Busa shock
Power Bronze Hugger
Zero Gravity Double Bubble
Ivan`s jet kit and air box mod

Ya gota love a 1200 torque monster.