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Author Topic: 696 CORED PIPES DONE!  (Read 5480 times)
hcomp
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« on: January 17, 2009, 10:53:30 PM »

We just finished coring the stock 696 exhaust cans... It will probably not be a home job unless you have a ban saw and a mig or tig welder.  We removed the outer aluminum cover and dissected the cans into 3 pieces.  The catalytic converter is in the first part of the can and then there is a two chamber piece   that contains three pipes with the center pipe being the final exhaust outlet.  It is a bit different than coring the S2R or 695 pipes. You must cut this pipe to gain access to anything.  We ended up completely removing the baffle, but left the small exhaust outlet to keep some back pressure.  It sounds drastically different! A bit louder and much more throaty! I am getting a third set of stock exhaust this week and I am going to perfect a medium level coring.  I will post some pics of the procedure and also the sound file so you can hear the difference. I am also having the aluminum skins anodized black and I will pick those up Thurs.

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にもかかわらず、私の車は本当に速いドライブ、私は女性の生殖器のようなバイクに乗る
Raux
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« Reply #1 on: January 18, 2009, 12:53:28 AM »

great. standing by for pictures and sounds.

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zLoki
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« Reply #2 on: January 18, 2009, 01:41:59 AM »

That sounds great, cant wait to see the results, details!...

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Mostly stock '12 796
Sold - '09 696 with 30,000 miles
Sleeper_I
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« Reply #3 on: January 18, 2009, 03:08:46 AM »

Thanks for the update. I'm looking forward to it  popcorn
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stopintime
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« Reply #4 on: January 18, 2009, 03:54:21 AM »

 bow down Entrepreneur  waytogo

 popcorn
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252,000 km/seventeen years - loving it
Oldfisti
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« Reply #5 on: January 18, 2009, 04:47:01 AM »

 popcorn  as well.
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i have had guys reach back and grab my crotch in an attempt to get around me. i'll either blow in their ear or ask them politely to let go of my wang.
Porsche Monkey
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« Reply #6 on: January 18, 2009, 05:57:47 AM »

 vomit
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« Reply #7 on: January 18, 2009, 06:29:03 AM »

Tease!  Wink I'm impatient, this isn't right.
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Ray
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LA
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« Reply #8 on: January 18, 2009, 07:30:37 AM »

Love to see some pics of the cut open cans.

IMHO, if I were going to go to the trouble of cutting the cans I want the end product to be a can with a whole the size of the exhaust pipes going straight through the can. Grin

LA
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"I'm leaving this one totally stock" - Full Termi kit, Ohlins damper, Pazzo levers, lane splitters, 520 quick change 14/43 gears, DP gold press plate w/open cover, Ductile iron rotors w/cp211 pads.

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DucinKtown
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« Reply #9 on: January 18, 2009, 08:19:03 AM »

 waytogo

 coffee

 drink

Can't wait

R
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hcomp
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« Reply #10 on: January 18, 2009, 11:40:51 AM »

Okay here is a quick mp3 of the difference between the stock and the cored exhaust.  We will have a video when all is done. Pics will be up tomorrow of the process.  The first part is stock idle then stock w/ rev. Second part is cored idle and w/ rev.

http://members.cox.net/hcompetition/CoredvsStock.mp3
« Last Edit: January 18, 2009, 11:47:55 AM by ryanracer » Logged

にもかかわらず、私の車は本当に速いドライブ、私は女性の生殖器のようなバイクに乗る
hcomp
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« Reply #11 on: January 18, 2009, 11:45:24 AM »

Love to see some pics of the cut open cans.

IMHO, if I were going to go to the trouble of cutting the cans I want the end product to be a can with a whole the size of the exhaust pipes going straight through the can. Grin

LA

You could do that, but you have to find a way to maintain back pressure. You could weld a washer in the middle of the pipe so that you could not see it.  Then you could get away with a larger outlet.
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にもかかわらず、私の車は本当に速いドライブ、私は女性の生殖器のようなバイクに乗る
Raux
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« Reply #12 on: January 18, 2009, 12:04:56 PM »

none of the aftermarket pipes have the backpressure issue?
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hcomp
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« Reply #13 on: January 18, 2009, 12:10:19 PM »

Well, if you do remove back pressure, you might have to re tune the bike.  Although with a lambda sensor, the computer should be able to compensate a little bit.  I may try to do a bigger straight pipes and outlet and see what the exhaust color and plugs look like after a short time.   
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にもかかわらず、私の車は本当に速いドライブ、私は女性の生殖器のようなバイクに乗る
Lance Goodthrust
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« Reply #14 on: January 18, 2009, 12:10:40 PM »

Oooo, sounds very nice.
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