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Jul 26th, 2011, 7:11 pm
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#1 (permalink)
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Super Senior Poster
Join Date: Dec 2007
Location: notginrraw, AP, USA
Posts: 4,783
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Did the MotoGP bikes have a db limt at Laguna..???
I saw what looked to an extension on Colin's Tech 3 Yamaha....looked almost like a SuperTrappe end cone....??? did they have to use Db killers for Sundays race??
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Jul 26th, 2011, 7:52 pm
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#2 (permalink)
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Extended Member
Join Date: Mar 2006
Location: somewhere between atlanta & n.cali, ITALIA->UK->MI->GA->CA, USA
Posts: 5,352
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someone mentioned that the bikes were limited to 130db... it sure didn't sound like it though.
here's a pic of the rizla suzuki's exhaust I took:
__________________
ECM IV is May 8-12th 2013, men in bikinis will wash bikes for free FFS. (And stop yelling or you'll wake up the sleeping asian bitches below)
2008 Ducshop Hyper S a.k.a. "Broke Beak Mountain" in a coma after 2011 ECM crash on Cherohala Skyway (w/ Mag-uhne-sium TA-TAS!),Ducshop engine w/ Pistal pistons, EVO slipper, Ducshop stack, Ducshop light flywheel, Ducshop suspension setup, DP cams, 2-1 termi, PCIII, 1123cc bore, shift-tech alum. subframe, DPseat, DP damper, DP 520chain, Bonamici rearsets, Titax levers, Driven CF handlebar, Rizoma beltcovers/mirrors/grips/reservoirs, tail-tidy, powdercoated parts, carbon-ed everywhere, and Xerox'd
2006 749R -the queen... (none shall touch her)
2005 749S -R.I.P.(homicidal left turning land yacht flyover)
2003 749 -R.I.P.(dog avoidance maneuver)
2003 KTM EXC 450 -(alive and revving despite mind-boggling abuse)
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Jul 26th, 2011, 7:56 pm
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#3 (permalink)
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Senior Member
Join Date: Aug 2007
Posts: 2,030
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No not all they were wide open with zero restrictions. What you saw on Colin's bike was a dumb can for marketing. Keeping the sponsors happy.
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Jul 26th, 2011, 8:40 pm
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#4 (permalink)
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Banned
Join Date: Dec 2006
Location: The lovely Van Nuys, California, USA
Posts: 11,283
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MotoGP sucks because the bikes are so loud, you can't have a conversation with anyone next to you. Ear plugs are pretty much mandatory for anyone even near the track.
Wanna know a funny story, I was bitching about the noise levels to Roberts guys and one of them said it was Kenny himself who pushed them to go loud. He thought it was a good idea to make MotoGP bikes super loud because it brings more attention to the action. Personally I think its stupid, superbikes are loud enough and being able to talk with the person sitting next to you and enjoy a good laugh/conversation mid race is nice.
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Jul 26th, 2011, 9:15 pm
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#5 (permalink)
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Senior Member
Join Date: Mar 2011
Location: Minneapolis, MN, USA
Posts: 263
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When I hear videos of these bikes they sound loud but not too loud. Guess I'll have to go to Laguna Seca next year and hear them in person 
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Jul 26th, 2011, 9:19 pm
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#6 (permalink)
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Banned
Join Date: Dec 2006
Location: The lovely Van Nuys, California, USA
Posts: 11,283
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Quote:
Originally Posted by dburkland
When I hear videos of these bikes they sound loud but not too loud. Guess I'll have to go to Laguna Seca next year and hear them in person |
Lemme say this, 130 decibels is no joke. Thats louder then standing in front of the speakers at a rock concert. You can hear the bikes idling outside the garage from the other side of the race track talking with someone and listening to the radio! 
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Jul 26th, 2011, 9:51 pm
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#7 (permalink)
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Senior Member
Join Date: Feb 2010
Location: Portland, Oregon, USA
Posts: 295
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I knew they were gonna be loud but I was blown away when the first one went by! Made the super bikes sound like they had oem exhaust.
__________________
04 749S
07 R1200GS
75 R90/6
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Jul 26th, 2011, 10:52 pm
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#8 (permalink)
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Super Senior Poster
Join Date: Dec 2007
Location: notginrraw, AP, USA
Posts: 4,783
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Quote:
Originally Posted by CAlexio
someone mentioned that the bikes were limited to 130db... it sure didn't sound like it though.
here's a pic of the rizla suzuki's exhaust I took:
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..I saw that exhaust again....it's definitely something on there....but not a SuperTrappe type end.....they all had some sort of end cap....could they be louder than 130.....and limited to 130dbs as Alexio stated?....Interesting as IIRC there is a cap on MC DBs in that area. SPEED did alot of pit coverage during their qualifying special and they seemed to absolutely shriek out of the pits.....and that was on TV....
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Jul 26th, 2011, 11:10 pm
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#9 (permalink)
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Extended Member
Join Date: Mar 2006
Location: somewhere between atlanta & n.cali, ITALIA->UK->MI->GA->CA, USA
Posts: 5,352
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Quote:
Originally Posted by Adrian749S
I knew they were gonna be loud but I was blown away when the first one went by! Made the super bikes sound like they had oem exhaust.
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I agree that when you hear them for the first time on Friday morning practice it's almost awe-inspiring. You just can't believe something can be that loud... to me, it definitely adds to the experience, not detracts. Some bikes like the Rizla Suzuki come idling out of the pits sounding very "cammy", with an intermittent exhaust sound like WOP WOP WOP WOP... almost like a marine speedboat engine. The Ducatis are a little boomier, kind of dirty sound. The Hondas sound like computer renditions, super smooth.... but this is all at idle.
When they accelerate into turn one for the first time, it absolutely makes your neckhair tingle. I would "treat myself" by removing earplugs occasionally, but only for very short periods... these bikes will destroy your hearing in one sitting IMO. Fun is for a day... tinnitus is forever.
WOP- WOP - WOP -WAAAAAAARRRRRRR----WAAAAAAAAAAAAAAEEEEEEEEEEEEEpopBOOMWAAAAAAAAAAApopBOOM-WAAAAAAAAAAAAAAA
http://www.metacafe.com/watch/662827...n_a_motorbike/
__________________
ECM IV is May 8-12th 2013, men in bikinis will wash bikes for free FFS. (And stop yelling or you'll wake up the sleeping asian bitches below)
2008 Ducshop Hyper S a.k.a. "Broke Beak Mountain" in a coma after 2011 ECM crash on Cherohala Skyway (w/ Mag-uhne-sium TA-TAS!),Ducshop engine w/ Pistal pistons, EVO slipper, Ducshop stack, Ducshop light flywheel, Ducshop suspension setup, DP cams, 2-1 termi, PCIII, 1123cc bore, shift-tech alum. subframe, DPseat, DP damper, DP 520chain, Bonamici rearsets, Titax levers, Driven CF handlebar, Rizoma beltcovers/mirrors/grips/reservoirs, tail-tidy, powdercoated parts, carbon-ed everywhere, and Xerox'd
2006 749R -the queen... (none shall touch her)
2005 749S -R.I.P.(homicidal left turning land yacht flyover)
2003 749 -R.I.P.(dog avoidance maneuver)
2003 KTM EXC 450 -(alive and revving despite mind-boggling abuse)
Last edited by CAlexio; Jul 26th, 2011 at 11:18 pm.
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Jul 26th, 2011, 11:38 pm
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#10 (permalink)
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Senior Member
Join Date: Mar 2011
Location: Roseville, CA, USA
Posts: 749
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That 130 decibel limit is what they announced over the PA.
Now, as a comparison that's how loud the F16 fighter jets on the flight line were (as they passed 100ft away) when they took off loaded with fuel and live ordinance, using full afterburner, to get airborne. That's frick'n loud.
And these damn bikes were JUST as loud. They were bad-ass, for sure. It does wear on you after a while. Personally I didn't feel like hanging out all weekend without ear plugs. I think the Ducati 2 up rides they were doing were on a Desmo and that bike was loud but not offensive.
The foam plugs are good for about a 30db reduction, so even with ear plugs those damn things were loud. Oh well, once a year 
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