Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Urgent Help Needed
#21
FYI all you need to pass drive clean is a converter.


every thing ells just muffles lol
In Europe FORD is pronounced "\kwa-le-te\"

2008 f250 6.4 powerstroke/twin turbo/crew cab/XLT/4x4 Edge programmer, Cat and Dpf delete, mbrp exhaust. 650hp 850ft/tq.....
2002 red SVT sport'in European Appearance package rims, AEM cai, #4111 of 4788, ranger 12v plug cover, 4500k HID HI/LO, eibach springs, H&R 15mm wheel spacers. sold Sad
2000 yellow zx3 sold
1994 mazda mx3 sold
1992 ford festiva (RIP)
Reply
#22
im pretty sure lunchbox is actually a resonator, my buddy took his off and it definately wasnt a muffler from the looks inside, it was straight through with honeycomb surrounding it. i believe up front is the muffler.

we need some sort of tech page that has the exact answer lol
2007 ZX4 2.0l unaturally aspirated
FSwerks stage 2 Turbo kit, Cosworth Intake Manifold, 3" custom HKS turbo back
regular stage 2 @10ps : 232whp/219wtq
stage 2 plus @ 13psi: 278whp/229wtq
Stage 2 plus @15psi: 296whp/240wtq

2013 Focus ST Tuxedo Black - The daily
Reply
#23
Lunch box is a Muffler.
Resonator is somewhat cylindrical


/thread
2002 Ford Focus ZTS (Gave it away)
125whp/129wtq
2006 Subaru Impreza WRX with JDM 6 speed
207whp/273wtq Innovative tuned on Mustang dyno (Stage 2)13.9@99mph
320whp/330wtq Innovative tuned on Mustang dyno (Stage 3)
352whp/360wtq Dynojet
13.3@106mph
2004 Ford F-150 Lariat
2008 Honda CBR600RR "Silver Bullet" R.I.P.
2009 Honda CBR600RR "To Punish & Enslave"
2001 Honda CBR F4i Stunt bike "Burn the Rubber, not your soul"
2013 China 90cc dirt bike
Reply
#24
GFXjamie,Mar 6 2010, 09:57 AM Wrote:im pretty sure lunchbox is actually a resonator, my buddy took his off and it definately wasnt a muffler from the looks inside, it was straight through with honeycomb surrounding it. i believe up front is the muffler.

we need some sort of tech page that has the exact answer lol
[right][snapback]302862[/snapback][/right]

This

NikiterZTS,Mar 6 2010, 10:43 AM Wrote:Lunch box is a Muffler.
Resonator is somewhat cylindrical


/thread
[right][snapback]302863[/snapback][/right]



I'll take info from people who've opened them up. AFAIK the lunchbox is the resonator.

Until, of course, we get a muffler and a resonator to cut open, I guess we won't have a clear answer. FJ says lunchbox = resonator
2003 Focus ZX5 Racecar/Perma broke/Storage
2011 Volkswagen Jetta Daily Driver
Reply
#25
http://myfordfocus.com/how-to/cat-back.htm
Reply
#26
Mystake,Mar 6 2010, 01:25 PM Wrote:I'll take info from people who've opened them up. AFAIK the lunchbox is the resonator.

Until, of course, we get a muffler and a resonator to cut open, I guess we won't have a clear answer. FJ says lunchbox = resonator
[right][snapback]302865[/snapback][/right]

actually, a Haynes manual or ford service manual, or ford parts catalog would be just as enlightening... as Ford isn't into the habbit of making up names for their parts.

that lunchbox tucked right behind your bumper is one of two muffler assemblies... if anyone says that's the resonator, they are the lunchbox.

[Image: focus_exhaust.jpg]
Contribute to focuscanada.net's future!

Donations of $20 and over get a custom title!







Reply
#27
I can't believe we have to argue about which one is muffler and which one is a resonator on a damn Focus.

Steve can you make this "unamused" face as one of our smileys? Latly I wanna give it to a lot of people on here haha

[Image: squinty_4.png]
2002 Ford Focus ZTS (Gave it away)
125whp/129wtq
2006 Subaru Impreza WRX with JDM 6 speed
207whp/273wtq Innovative tuned on Mustang dyno (Stage 2)13.9@99mph
320whp/330wtq Innovative tuned on Mustang dyno (Stage 3)
352whp/360wtq Dynojet
13.3@106mph
2004 Ford F-150 Lariat
2008 Honda CBR600RR "Silver Bullet" R.I.P.
2009 Honda CBR600RR "To Punish & Enslave"
2001 Honda CBR F4i Stunt bike "Burn the Rubber, not your soul"
2013 China 90cc dirt bike
Reply
#28
wow...i figured my photos would have cleared it up..lol

think about it. lunchbox. the muffler LOOKS like a lunchboxs, you know?
http://thepilver.files.wordpress.com/200...ch-box.jpg

vs

http://image.musclemustangfastfords.com/f/...ear_Muffler.jpg
Sean- 1998.5 Black/Blue CSVT #5906

Reply
#29
ive seen mufflers that don't look like lunch boxes.


and ty above for the pic to clear it up. I guess I'm a lunchbox :P
2003 Focus ZX5 Racecar/Perma broke/Storage
2011 Volkswagen Jetta Daily Driver
Reply
#30
Mystake,Mar 6 2010, 05:18 PM Wrote:ive seen mufflers that don't look like lunch boxes.


and ty above for the pic to clear it up. I guess I'm a lunchbox :P
[right][snapback]302876[/snapback][/right]

true. but on a focus, thats how it looks, hence the name

plus heres a link to FJ

http://forums.focaljet.com/exterior-modifi...box-delete.html

they deleted the rear "resonator" aka muffler.
Sean- 1998.5 Black/Blue CSVT #5906

Reply
#31
whether its a muffler or a resonator it makes no a whole pile difference. however, the MUFFLER in my focus sport exhaust is located exactly where the what you call a resonator what i call a muffler is and it is identical minus this one being straight thru and stainless
2007 ZX4 2.0l unaturally aspirated
FSwerks stage 2 Turbo kit, Cosworth Intake Manifold, 3" custom HKS turbo back
regular stage 2 @10ps : 232whp/219wtq
stage 2 plus @ 13psi: 278whp/229wtq
Stage 2 plus @15psi: 296whp/240wtq

2013 Focus ST Tuxedo Black - The daily
Reply
#32
i never did understand why there is a muffler and a resonator, they both MUFFLE the sound aka make the exhaust quieter, they should've just called them both the same thing instead of trying to distinguish between the 2. as far as im concerned the stupid metal box at the very end of the exhaust would be the muffler as it quiets the exhaust significantly.

i don't believe a resonator quiets down the exhaust tone as much.
Little bit of show, little bit of go.
Reply
#33
From what I remember from FJ, The Rear portion has been referred to as the "Resonator" and the Portion closer to the Catalyctic converter, is the actual muffler drum. People have removed the "resonator" piece at the end of the car to "improve" the sound of the Factory exhaust, while maintaining a stock look and keeping the muffler intact.

There was some issues when some members took their car to a "pep boys" type shop and the fart heads, chopped off the rear resonator thinking it was a muffler, and installed one of those "cherry bomb" hollywood exhausts, not knowing the car became more sluggish afterwards. I've also met a member from good ol Canada who also had this done at a local Crappy Tire, and after driving the car, I noticed it too, when he realized he now had 2 mufflers on his car, he got mad, LMAO.

Cat-Back is always the BEST and EASIEST way to go if you want to change your exhaust system.
My other ride is your Mom
Reply
#34
paolo,Mar 6 2010, 10:30 PM Wrote:From what I remember from FJ, The Rear portion has been referred to as the "Resonator" and the Portion closer to the Catalyctic converter, is the actual muffler drum.  People have removed the "resonator" piece at the end of the car to "improve" the sound of the Factory exhaust, while maintaining a stock look and keeping the muffler intact.

There was some issues when some members took their car to a "pep boys" type shop and the fart heads, chopped off the rear resonator thinking it was a muffler, and installed one of those "cherry bomb" hollywood exhausts,  not knowing the car became more sluggish afterwards.  I've also met a member from good ol Canada who also had this done at a local Crappy Tire,  and after driving the car, I noticed it too, when he realized he now had 2 mufflers on his car, he got mad, LMAO.

Cat-Back is always the BEST and EASIEST way to go if you want to change your exhaust system.
[right][snapback]302885[/snapback][/right]



lol i had them cut it out and put in a straight pipe with a tip on it.
2003 Focus ZX5 Racecar/Perma broke/Storage
2011 Volkswagen Jetta Daily Driver
Reply
#35
I can't believe that there's another post stating that the rear lunchbox is a resonator... 'cause the ford parts catalog doesn't think it's a resonator.

FYI
Quote:A resonator (helmholtz resonator) uses a tuned cavity to actually actively cancel out sound. It creates a band-pass filter that eliminates problem frequencies - so they tune it for a specific loud spot in engine operation. It targets only a small range of frequencies.

A muffler is usually a series of expansions that take energy from the gas flow to decrease sound. Sometimes they have resonating chambers built in, but typically they operate on a purely expansive vane - expanding a gas so many times into such a volume muffles certain frequencies.

Contribute to focuscanada.net's future!

Donations of $20 and over get a custom title!







Reply
#36
Yeah, so next time you go to the muffler shop and they chop off the rear suit case, and put on a Fart Can drum, make sure the shop knows what theyre doing. The last guy who chopped off his rear resonator actually LOST performance when he installed his FART CAN on his car cus he ended up with 2 mufflers lol.
My other ride is your Mom
Reply
#37
paolo,Mar 7 2010, 05:06 PM Wrote:Yeah,  so next time you go to the muffler shop and they chop off the rear suit case,  and put on a Fart Can drum,  make sure the shop knows what theyre doing.  The last guy who chopped off his rear resonator actually LOST performance when he installed his FART CAN on his car cus he ended up with 2 mufflers lol.
[right][snapback]302910[/snapback][/right]


i only plan on having one "thing" in my exhaust. Not two.
2003 Focus ZX5 Racecar/Perma broke/Storage
2011 Volkswagen Jetta Daily Driver
Reply
#38
Mystake,Mar 7 2010, 06:48 PM Wrote:
paolo,Mar 7 2010, 05:06 PM Wrote:Yeah,  so next time you go to the muffler shop and they chop off the rear suit case,  and put on a Fart Can drum,  make sure the shop knows what theyre doing.   The last guy who chopped off his rear resonator actually LOST performance when he installed his FART CAN on his car cus he ended up with 2 mufflers lol.
[right][snapback]302910[/snapback][/right]


i only plan on having one "thing" in my exhaust. Not two.
[right][snapback]302912[/snapback][/right]

chop lunchbox rear muffler off. cut resonator out located towards center of car, and weld in a muffler there. straightpipe it out back. done
Sean- 1998.5 Black/Blue CSVT #5906

Reply
#39
paolo,Mar 7 2010, 06:06 PM Wrote:Yeah,  so next time you go to the muffler shop and they chop off the rear suit case,  and put on a Fart Can drum,  make sure the shop knows what theyre doing.  The last guy who chopped off his rear resonator actually LOST performance when he installed his FART CAN on his car cus he ended up with 2 mufflers lol.
[right][snapback]302910[/snapback][/right]

The rear lunchbox is a muffler. see the ford parts manual.
Contribute to focuscanada.net's future!

Donations of $20 and over get a custom title!







Reply
#40
So just to confirm what did the shop take out the rear squareish piece or the rounded middle piece.
DruZX3 You Tube Page
My Rides on Car Domain

2001 Ford Focus ZX3 - Daily Driver
2008 Lincoln MKX Limited Edition - Grocery Getter
2007 Suzuki GSXR 600 - Rode and Sold
2004 Jeep Liberty Renegade - Offroaded and Sold
2008 Jeep Wrangler Unlimited X - R.I.P. Electrical Fire
2000 Ford Focus ZX3 - Traded in Now DrunkinMonkeys Car
2003 Ford Taurus Wagon - Inherited Drove and Sold
2000 Ford Focus ZX3 Turbo - Award Winning 336 WHP - Parted and Scraped
1990 Ford Festiva - My 1st Car

[Image: ZX3PixelCarEngineVIEW.png]
Reply


Forum Jump:


Users browsing this thread: 2 Guest(s)