Full bafflectomy?
02-04-2009, 12:59 AM
#1
jonesey
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Join Date: Sep 2008
Location: essex uk
Posts: 77
Full bafflectomy?
Hi all, just drilled 8x 12mm holes in the end of my standard can baffles, and like the sound and the volume increase.
However, what i'd like to know is how much louder would it be if i removed the baffle altogether? twice as loud? three times?
Any input welcomed.
Cheers, Jonesey.
However, what i'd like to know is how much louder would it be if i removed the baffle altogether? twice as loud? three times?
Any input welcomed.
Cheers, Jonesey.
02-04-2009, 01:18 AM
#2
Senior Member
Superstock
Join Date: Apr 2005
Location: No longer in 'The Suck'!!!
Posts: 371
Roughly twice. If you then take a very, very long drillbit and punch additional holes in the interior baffles, it magnifies about twice again, and flirts very dangerously with obnoxious. When I get home I plan to take some dB readings of the Extra-full cans I have currently mounted, then the "full bafflectomy" cans with just the rear baffle and pipe removed (no extra interior holes), then a stock set. But it'll be a while.
Asthetically, the rear baffle and first pipe removed sounds pretty damn good. The tone of the next level of 'carnage' sounds better, but the volume is too high IMO. Just my $.02
Asthetically, the rear baffle and first pipe removed sounds pretty damn good. The tone of the next level of 'carnage' sounds better, but the volume is too high IMO. Just my $.02
02-04-2009, 06:05 AM
#3
evil man of nothing
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Join Date: Jan 2006
Location: Boynton Beach, FL
Posts: 4,484
If you completely remove the baffle it's not overly loud, but like galaxie said once you start putting holes in the next baffle is when the fun starts. Drill a bunch of holes in that and you're at the louder end of the aftermarket pipe spectrum.
Last edited by captainchaos; 02-04-2009 at 08:02 AM.
02-04-2009, 08:10 AM
#5
AZ RIDER
Superstock
Join Date: Jul 2008
Location: Arizona
Posts: 294
My bike has a full Baffectomy..... i set off car alarms everywhere i go, there are alot of dumb *** harleys that are 25 times louder and go nowhre in a hurry.
If your making alot of noise on your Hawk YOUR GONE!
Anyways
Who wants to ride a sewing machine, make it loud.. its not really that bad..
If your making alot of noise on your Hawk YOUR GONE!
Anyways
Who wants to ride a sewing machine, make it loud.. its not really that bad..
02-05-2009, 12:30 PM
#6
Sweet Jumps
Squid
Join Date: May 2008
Location: Stratford CT.
Posts: 14
i cut out and removed the end baffle and it sounds awesome but now i have a hiccup at around 3000rpms only if im cruising around at that rpm. not if i accelerate throught that rpm. what adjustment do i have to make to get rid of that?
02-06-2009, 04:52 AM
#10
Out of my mind, back in 5
MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
Not unless you manage to put the endpipe back in there... It's kind of the point with a bafflectomy... You open up the baffle to increase flow, gaining room to open up the airbox... Added together and with proper tuning you gain effect...
The change in noise is a bi-product...
The change in noise is a bi-product...
02-07-2009, 02:10 AM
#11
Administrator
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Location: Fulton, MO
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02-07-2009, 02:16 AM
#12
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02-07-2009, 07:45 AM
#13
Sweet Jumps
Squid
Join Date: May 2008
Location: Stratford CT.
Posts: 14
found the washer at the hardware store and it seems to work. started engine. let it warm up. seems to idle fine. reved it a little. no problems. held throttle at 3000rpm, no studdering. Sweet!! i only have to wait 2 more months to test it on the street.
03-03-2009, 02:04 PM
#14
Junior Member
Squid
Join Date: Jun 2007
Location: Calgary Ab
Posts: 6
I tried drilling the 10-12 holes per exhaust can and it was a little louder. My buddy and i got creative drinking in my garage and used my plasma cutter and cut out the first baffle. It was a bit of a bastard to wrestle out with some vise grips. The bike is crazy loud. I was stoped by a cop here in calgary, he thought i has some kind of tricked out buell. Any ways no ticket was served, but my buddies hyabusas and Queen-B's are still louder than mine (full exaust, and a little pop can muffler). No real power improvement just noise. Could these bikes handle a turbo set up by chance?
03-30-2009, 11:10 PM
#15
Member
Squid
Squid
Join Date: Mar 2009
Location: Sherman Island, Ca.
Posts: 53
Did you ever think about lookin' @ your plug readings to see... air/fuel mixture readings, could help.... might start to tell you a story?
I'm going through almost the same kind of deal.
"98"VTR Moriwaki exhaust, bmc filter, Factory pro 1.7RK 180 frnt./188rear,4degree advance. Ran just as hard as a stripppppped *** "Geico Dude!"
I lost the pipes, so now...it's too fat. I'm working back down the jetting, w/ only one thing...education/info/35+yrs of loving this stuff!
There are a bunch of great sites that will help!!!!
Happy hunting!
D.
I'm going through almost the same kind of deal.
"98"VTR Moriwaki exhaust, bmc filter, Factory pro 1.7RK 180 frnt./188rear,4degree advance. Ran just as hard as a stripppppped *** "Geico Dude!"
I lost the pipes, so now...it's too fat. I'm working back down the jetting, w/ only one thing...education/info/35+yrs of loving this stuff!
There are a bunch of great sites that will help!!!!
Happy hunting!
D.
03-31-2009, 09:11 AM
#17
Senior Member
MotoGP
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
It's been done, there are a bunch of videos on youtube of someone who did it..
The thing is, the stock crank is only good for 130HP or so.. Beyond that, you need far more custom work, to the point that you might as well start with a more suitable motor.
The thing is, the stock crank is only good for 130HP or so.. Beyond that, you need far more custom work, to the point that you might as well start with a more suitable motor.
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