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696 Termignoni slipons - Baffles in or out?

Started by theprocess, July 13, 2011, 09:27:28 PM

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theprocess

Ive noticed that with the baffles in my 696's throttle is a lot smoother below 4k rpm and less backfiring/popping. When i had them off it didnt like being under 4k rpm, shook pretty badly at times and backfired whenever I let off the throttle. Bonus, my neighbors will hate me a little less because of the noise reduction  [thumbsup]. All things considered, I think the baffles are staying in permanently (taking them out in the first place was a real p.i.t.a. also).

Anyone know if Ducati/Termignoni set the ecu for use with baffles or without or either? Wondering if there is any difference in performance.

Raux

i find that interesting, because essentially wiht the closed loop system, they both should work perfect below 4k as the system should compensate due to the O2 sensors...

ungeheuer

I find it interesting because I detected absolutely zero performance difference baffles in or baffles out when I had Termi slip ons on my 696.  The only thing that changed was the noise level.  I think the popping on decel is the same, its just way more audible with the baffles removed.
Ducati 1100S Monster Ducati 1260ST Multistrada + Moto Guzzi Griso 1200SE



Previously: Ducati1200SMultistradaDucatiMonster696DucatiSD900MotoMorini31/2

WhiteStripe

I am running Arrows on a FAT DUC.  Without baffles I needed to richen it up substantially, with baffles was pretty similar to stock to get same results.  This is definitely unscientific, but my experience. YMMV.

For me, without baffles was just too loud for daily commuting.
2006 S2R 1000, Arrow CF exhaust, FatDuc 02, CF open cc with stock pp

Duc796canada

#4
Quote from: WhiteStripe on July 14, 2011, 01:50:11 PM
I am running Arrows on a FAT DUC.  Without baffles I needed to richen it up substantially, with baffles was pretty similar to stock to get same results.  This is definitely unscientific, but my experience. YMMV.

For me, without baffles was just too loud for daily commuting.

Makes sense. With the baffles out, one has significantly less back pressure, probably a little less engine braking as well. I'm glad you brought it up, with mixture adjustments, there will be a difference, slight, but nonetheless. Now if someone can do a dyno run, it would be awesome. As far as the noise, I put mine back in as well, my neighbours are good people, don't need them being otherwise. There is a Harley owner that likes to rev it on weekends or whenever he feels like listening to it echo through the townhouse complex, I know how people feel about him. [Dolph]
796 Red Monster(sans ABS)
Viz-Tec Supabrake II
15/41 gearing(AFAM quick change sprocket)
PC V, NEXTUP QS.
2006 Suzuki GSXR 600 track bike(I know...not a Duc...some day)

theprocess

Its been a couple of days now of riding with the baffles in, maybe its just me experience but my bike no longer has the low rpm shakes. Without the baffles, making right handers was always very sketchy...now rolling on the throttle is silky smooth. Major difference.

DoWorkSon

For what it's worth I have zero decel pop after installing a baffle in my h-comp exhaust... Might be a benefit of having a baffle
2003 BMW R1150GS- The commuter
2009 M696--SOLD

WhiteStripe

Quote from: theprocess on July 16, 2011, 04:11:27 PM
Its been a couple of days now of riding with the baffles in, maybe its just me experience but my bike no longer has the low rpm shakes. Without the baffles, making right handers was always very sketchy...now rolling on the throttle is silky smooth. Major difference.

100% agree.  Trade offs.  WOT no baffles is great.  Commuting i went back to more back pressure less noise.
2006 S2R 1000, Arrow CF exhaust, FatDuc 02, CF open cc with stock pp