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Jun 30th, 2007, 12:00 PM
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#1 | | Moderator Has posted 500+
Join Date: Apr 2006 Location: Alvin TX
Posts: 3,200 Model: 03 E Glide X cop bike Interests: My family Old Dodge truck's Riding My Glide Occupation: Retired truck Driver
| Big city thunder baffles
Some one here , suggested I try Big city thunder baffles , they said they had them in there SE slip on's , who was it & are any of them on A sporty? 
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Alvin TX
03Electra Glide FLHTPI
one of the founding members www.sweptline.org | 
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Jun 30th, 2007, 02:00 PM
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#2 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Hey Cowboy...read the post "Baffles vs Power Cones" dated June 11th. | |
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Jun 30th, 2007, 04:41 PM
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#3 | | Moderator Has posted 500+
Join Date: Apr 2006 Location: Alvin TX
Posts: 3,200 Model: 03 E Glide X cop bike Interests: My family Old Dodge truck's Riding My Glide Occupation: Retired truck Driver
| Thank's ringo
__________________ cowboy
Alvin TX
03Electra Glide FLHTPI
one of the founding members www.sweptline.org | |
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Jun 30th, 2007, 09:14 PM
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#4 | | Administrator Frequent Posting Club
Join Date: Jan 2005
Posts: 1,540 Model: Harley FLHX Interests: Harley's, Saltwater fish tanks, and inventing new ways to keep busy. Occupation: Web Specialist by day, 25+ years of carb building by day, hey what happened to my day?!
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Ken
Bike Talk Motorcycle Forum Admin | |
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Jul 1st, 2007, 05:42 AM
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#5 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| BCT sounds like the way to go. I just have one question about the sound. Those that have them say the sound is good. What level of sound do they produce. I just ordered the V&H true duals for my Heritage. Should have them this week. They have 1 3/4" headers and 2" slip-ons.
I'm looking for a deep throaty sound. Don't want anything obnoxiously loud, but don't want it to quiet either. | |
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Jul 1st, 2007, 03:24 PM
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#6 | | Moderator Has posted 500+
Join Date: Apr 2006 Location: Alvin TX
Posts: 3,200 Model: 03 E Glide X cop bike Interests: My family Old Dodge truck's Riding My Glide Occupation: Retired truck Driver
| ringo, I have the V&H true dules with hollowed out SE slip on's on my E Glide , it has a real good sound , & I can still here my radio , i was out riding with some friends last week all had dresser's & all ask me where i got my pipes , I told them at first there where stright , one of them even took his flash light & look , then I told them about the BCT baffles, I asked if any one here had them in a set of SE slip on a sporty , because I want to build a set for my Daughter 's sporty
__________________ cowboy
Alvin TX
03Electra Glide FLHTPI
one of the founding members www.sweptline.org | |
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Jul 1st, 2007, 04:30 PM
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#7 | | Administrator Frequent Posting Club
Join Date: Jan 2005
Posts: 1,540 Model: Harley FLHX Interests: Harley's, Saltwater fish tanks, and inventing new ways to keep busy. Occupation: Web Specialist by day, 25+ years of carb building by day, hey what happened to my day?!
| I've had a set installed in my Mean Mother straight pipes and personally think they are borderline too loud. They don't sound all that loud on the bike but from behind I'm told they are very loud. Riding through residential neighborhoods leaves a path of whaling car alarms even while mildly opening the throttle. The up side is they are extremely deep and throaty and don't get raspy at full throttle like open drag pipes do.
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Ken
Bike Talk Motorcycle Forum Admin | |
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Jul 1st, 2007, 05:40 PM
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#8 | | Has posted 500+
Join Date: Dec 2006 Location: Stanton, NJ
Posts: 1,378 Model: 04 Dyna WG (with a 240 rear tire) Interests: Harleys, drag racing, family, fishing, my rottweilers, the UFC Occupation: Carpenter/Builder
| I have the BCT baffles in my S/E double barrel pipes, (see my gallery to see what they look like), and they are very deep and throaty. They are not quiet though, I do set off an occasional car alarm, but usually on purpose....   | |
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Jul 1st, 2007, 07:10 PM
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#9 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Thanks for all the info guys, the reason I asked is that I am currently running Samson Bigguns2 short slashers with a 10" baffle. I too set off car alarms. The reason I'm going to the true duals is to get the noise behind me instead of on the side just below the passenger floorboard. It gets a little anoying after a while.  | |
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Jul 3rd, 2007, 04:51 AM
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#10 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Saw picture of these in a bike mag. Do they really make a difference? Kinda reminds me of the old home made bolt and washer baffle.  | |
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Jul 3rd, 2007, 06:45 AM
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#11 | | Moderator Has posted 500+
Join Date: Jul 2005
Posts: 7,390
| Quote:
Originally Posted by ringo912  Saw picture of these in a bike mag. Do they really make a difference? Kinda reminds me of the old home made bolt and washer baffle. | the old bolt and washer DOES make a difference.....tried and true for many years.....
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Jul 3rd, 2007, 08:30 AM
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#12 | | Moderator Has posted 500+
Join Date: Apr 2006 Location: Alvin TX
Posts: 3,200 Model: 03 E Glide X cop bike Interests: My family Old Dodge truck's Riding My Glide Occupation: Retired truck Driver
| I,am sure the extra pipe , does a little bit as well I had the nut/bolt & washer in some drag pipes on my Shovel , & these BCT's sound a bit different , I know the pipe size also makes a big difference ,
__________________ cowboy
Alvin TX
03Electra Glide FLHTPI
one of the founding members www.sweptline.org | |
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Jul 3rd, 2007, 09:23 AM
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#13 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| OK...I'm convinced. Thanks for the insight. | |
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Jul 3rd, 2007, 09:51 AM
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#14 | | Administrator Frequent Posting Club
Join Date: Jan 2005
Posts: 1,540 Model: Harley FLHX Interests: Harley's, Saltwater fish tanks, and inventing new ways to keep busy. Occupation: Web Specialist by day, 25+ years of carb building by day, hey what happened to my day?!
| They are actually a commercialized take on a DIY baffle many of us used to put in drag pipes years ago. The design is actually quite simple. The body is an exhaust pipe slip coupler which narrows toward the center, sort of like an hour glass. The shape creates a venturi which enhances velocity for scavenging. The washer suspended at one end then disrupts the pulse from returning back up the head pipe. Other variations have included using pieces of tubing instead of a washer.
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Enjoy the Ride!
Ken
Bike Talk Motorcycle Forum Admin | |
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Jul 7th, 2007, 04:13 AM
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#15 | | More than 100 posts!
Join Date: Dec 2004 Location: Knoxville, TN
Posts: 168 Model: 07 SE ROAD KING, 04 LOW RIDER Interests: MOTORCYCLES, NASCAR Occupation: TRUCKER , OWNER OPERATOR
| HEY GUYS, MIGHT HAVE BEEN ME THAT TOLD U ABOUT THE BCT BAFFELS, I HAVE BEEN RUNNING THEM FOR ABOUT A YEAR NOW IN MY LOW RIDER WITH V&H BIG RADIUS PIPES, MADE DYNO RUNS BEFORE AND AFTER HP & TORQUE CAME UP WITH THEM INSTALLED, TWO OTHER GUYS THAT I RIDE WITH INSTALLED THEM AS WELL, EVERYONE VERY PLEASED WITH THEM, I'M THINK I AM GOING TO PUT V&H BIG SHOTS ON MY SE ROAD KING AND THEY WILL HAVE THE BCT AS WELL
DKIN
LIVE EASY, RIDE HARD   | |
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Jul 7th, 2007, 04:34 AM
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#16 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| Hey DKIN, how much gain in torque and HP did you see after installing the BCT baffle? | |
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Jul 7th, 2007, 04:49 AM
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#17 | | More than 100 posts!
Join Date: Dec 2004 Location: Knoxville, TN
Posts: 168 Model: 07 SE ROAD KING, 04 LOW RIDER Interests: MOTORCYCLES, NASCAR Occupation: TRUCKER , OWNER OPERATOR
| Ringo, If I Remember Right Seems Like About 6 Hp And 8-10 On The Torque, Tell U Something Else To Keep In Mind, From The Rear Of The Pipe The More U Put Them Toward The Front The Deeper The Sound And According To Bct The Better The Performance. | |
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Jul 7th, 2007, 05:19 AM
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#18 | | Has posted 500+
Join Date: Jan 2007 Location: Michigan
Posts: 563 Model: Harley 02' Heritage Classic Interests: Riding Occupation: Riding - Semi Retired
| I notice they have a washer on a post inside of them that is positoned closer to one end of the baffle. Does it matter which direction this is positioned? Should it go towards the front or rear of the bike? | |
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Jul 8th, 2007, 06:17 AM
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#19 | | More than 100 posts!
Join Date: Dec 2004 Location: Knoxville, TN
Posts: 168 Model: 07 SE ROAD KING, 04 LOW RIDER Interests: MOTORCYCLES, NASCAR Occupation: TRUCKER , OWNER OPERATOR
| RINGO, TO ANSWER YOUR QUESTION THE POST WITH WASHER GOES TOWARD THE BACK OF THE BIKE
DKIN | |
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Jul 8th, 2007, 09:22 AM
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#20 | | Moderator Has posted 500+
Join Date: Apr 2006 Location: Alvin TX
Posts: 3,200 Model: 03 E Glide X cop bike Interests: My family Old Dodge truck's Riding My Glide Occupation: Retired truck Driver
| I got the set that goes into the header pipe , washer to the back , I seem to have gained about 6-8 HP , & TQ Is just great, , I was out yesterday ,Had my 10 year old Grand son on the back, had to get around Some real slow Cars (30 in a 60 ) ,, hit it from 3trd to 4 th Hard & it felt like the front wheel came up a bit
__________________ cowboy
Alvin TX
03Electra Glide FLHTPI
one of the founding members www.sweptline.org | |
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