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MORE OPTIONSAGREE registry | CVN on Facebook | tech | news | email login Welcome to CVN - Your Panther platform headquarters! Custom Search You are not logged in. [Log In] Crownvic.net » Forums » 1992 - Up: Aeros & Whales » 4.6L Based Powertrains » General exhaust question Register Portal Page Forum List Chat Calendar Active Topics Forum Help Topic Options #4026752 - 08/10/19 02:37 PM General exhaust question ericp Rookie Registered: 02/19/08 Posts: 84 Loc: pa, usa Hi all. I noticed that many panther cars have a bolt on weight or weights on the exhaust pipes act of the cats. I figure they help stress or break our pipes and I tend to unbolt or cut them off. Do they do much or any good? Top Links #4026756 - 08/10/19 03:08 PM Re: General exhaust question [Re: ericp] RF_Overlord Poobah Registered: 12/14/02 Posts: 8746 Loc: MA They are vibration dampers that help reduce resonance and drone. _________________________ '03 Mercury Marauder (The Blackbird) Trilogy Motorsports supercharged #61 Too many mods to list / Driveway Queen '11 Grand Marquis LS Ultimate Edition (Black) '00 Grand Marquis GS (Silver) Rotted frame and broken transmission crossmember Being resurrected...slowly. Top #4026772 - 08/10/19 07:55 PM Re: General exhaust question [Re: RF_Overlord] CrystalPistol Banned Over the Hill Registered: 10/16/01 Posts: 3474 Loc: Shenandoah Valley Originally Posted By ericp … etc ... I figure they help stress or break our pipes and I tend to unbolt or cut them off. Do they do much or any good? Surely you jest! Originally Posted By RF_Overlord They are vibration dampers that help reduce resonance and drone. And they work too. I have a F150 I put a cat back system on with a short muffler, all stainless steel but even after adding a 28" long SS glasspack to quieten it a bit, drone in cab at 1,900-2,000 RPM was horrible. I had some of those bolt on weights from when I bought a dual system from a CV-HPP for our Merc, I welded up a mount and hung them both about halfway back from Y and glasspack, all this ahead of the short chambered muffler. Killed the drone, just a nice tone purr now. Seams to me they were just sand or concrete inside welded tubes. Edited by CrystalPistol (08/10/19 08:04 PM) _________________________ ________________________________________ ____________________ Problems huh? Then Read THE Book. Signed: Natural Borne Neanderthal . Top #4026792 - 08/10/19 10:43 PM Re: General exhaust question [Re: ericp] BigMerc96 I know nothing Posting Addict Registered: 06/05/10 Posts: 19872 Loc: I can see Detroit from here! Yep. They are there to dampen any resonance in the piping, its all for NVH. They aren't really "needed" but they do make a difference and they certainly aren't hurting anything. There is no way they are heavy enough to even remotely stress the piping they are attached too. Hell, even when the bolts holding the flanges they're mounted too broke on my Town Car and later on my '98, those weights still stayed in place on the loose remnants of bolt that was still there. _________________________ -Steve 2006 Audi A6 ~132k miles, stock. 1998 Mercury Grand Marquis LS HPP ~100k miles, slowly acquiring modifications. 1997 Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Contour E-fan Retrofit, Dual exhaust with Magnaflows, cats deleted, MSD Ignition, KYB Gas-A-Justs, P71 front bar, air ride reinstated, Projector retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit, holistic weight reduction as the parts fall off.. 1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12 Top #4026814 - 08/11/19 05:40 PM Re: General exhaust question [Re: CrystalPistol] ericp Rookie Registered: 02/19/08 Posts: 84 Loc: pa, usa Thanks, I didn’t know that made much of a difference. I’ll probably stop cutting them now that I know this. Top #4026830 - 08/11/19 08:23 PM Re: General exhaust question [Re: ericp] lmrogp Member Registered: 01/02/09 Posts: 277 Loc: MA I just added a set to my 09 and noticed a difference right away. Cabin drone is greatly reduced...much like my 02, which has them as OE. _________________________ 2009 Ford Crown Victoria Police Interceptor Silver Birch Metallic, SAP, 135k, 889+3h, 3.27, Dual Exhaust, Mustang Wheels, LTC Jump Seat, OEM RKE Retrofit, BH1976 Headlight Relay Harness, Engine Compartment Light, Message Center Cluster 2002 Mercury Grand Marquis GS Spruce Green Metallic, 214k, 3.73, ETE Reman Transmission, DRP Tune, Dual Exhaust, HPP Wheels, LTC Jump Seat, Bilstein Shocks, VDO Tach, Compass Mirror, Factory AM/FM/CD Player Top #4026832 - 08/11/19 09:14 PM Re: General exhaust question [Re: ericp] Prospect62 CVN 10 Year Member Registered: 01/15/10 Posts: 299 Loc: Central New York What the hell is the factory name for these things? Part #? _________________________ Black 2008 CVPI SAP - Former City of Kannapolis, NC PD Top #4026834 - 08/11/19 09:25 PM Re: General exhaust question [Re: Prospect62] CrystalPistol Banned Over the Hill Registered: 10/16/01 Posts: 3474 Loc: Shenandoah Valley Originally Posted By Prospect62 What the hell is the factory name for these things? Part #? I've thought of them as simply "EXHAUST DAMPENERS". Originally Posted By 1 Adam 12 If you've recently replaced your CV/GMQ/TC exhaust system with something upgraded, or needed to replace components, make sure you re-install your Exhaust Dampers, or that the shop did it! Exhaust Dampers are designed by Ford to cancel out exhaust "drone" as it's called. Here's an example: My 2007 had some long tube Kooks headers put on as well as a 3" exhaust system. It scrapped the ground everywhere I went there was a bump. Couldn't live with it. I took it all off, and had the factory-like stuff put back on (all Walker components - BTW, hardly noticed a difference). However, the Dampers were not reinstalled for some reason. For 3 years I lived with these exact symptoms: Anytime the car was sitting anywhere, idling, a HUGE vibration would could up the floorpan, steering wheel and I could even feel it in my seat every few seconds. It also made the dash and door vibrate a bit. This was several times worse when the A/C was on. If you increased RPMS a bit, away it went. I thought it was just normal, then asked a mechanic friend of mine. Dampers or Engine mounts he said - BINGO! Dampers were missing upon inspection. Once the dampers were reinstalled, the problem was 99.5% gone. The remaining .5% is probably normal resonance. Dampers are installed for a reason - it's not just for a "little" bit of noise. Like me, you would be surprised just how much a 3 pound damper full of steel or lead shot on your pipe(s)/muffler(s) can change the exhaust vibration to near nill. It doesn't affect any performance at all. 6 pounds of dampers won't affect your performance even a measurable amount, if that's what your worried about. The other reason is that that vibration can shake loose exhaust components over time, causing even more problems like exhaust leaks - and you don't want those... So - make sure to reinstall those dampers, and if their missing, get them! Part Numbers: Single Exhaust CV/GMQ/TC 03+: Left (goes on Pipe Joint): 6W1Z-5F240-AA Right (goes on Pipe Joint): 6W1Z-5F240-AB Dual Exhaust CV/GMQ/TC 03+: Left (goes on Muffler U-clamp): 4W1Z-5F240-AA Right (goes on Cat pipe joint): 6W7Z-5F240-AB https://www.crownvic.net/ubbthreads/ubbt...fpart=1&q=1 Hope it helps. Edited by CrystalPistol (08/11/19 09:28 PM) _________________________ ________________________________________ ____________________ Problems huh? Then Read THE Book. Signed: Natural Borne Neanderthal . Top #4026870 - 08/12/19 01:12 PM Re: General exhaust question [Re: Prospect62] gDMJoe Poobah Registered: 06/03/03 Posts: 7781 Loc: Timbuk3, MI Quote: Prospect62 - What the hell is the factory name for these things?... According to parts.ford.com ... (exhaust) Dampner Assembly . _________________________ -click the Vic- Top #4026890 - 08/12/19 02:42 PM Re: General exhaust question [Re: ericp] Prospect62 CVN 10 Year Member Registered: 01/15/10 Posts: 299 Loc: Central New York I take it that police cars are not equipped with these from the factory? Couldn't find any on my car. _________________________ Black 2008 CVPI SAP - Former City of Kannapolis, NC PD Top #4026902 - 08/12/19 03:43 PM Re: General exhaust question [Re: ericp] BigMerc96 I know nothing Posting Addict Registered: 06/05/10 Posts: 19872 Loc: I can see Detroit from here! Early police cars did, not sure when they stopped. The '94 that donated its duals to my '96 had them, but it also had tailpipe resonators because there wasn't really any difference between P71 and "regular" CV/GMQ dual exhaust on the early Aeros. The stock single exhaust on my '96 only had the dampener on one side, IIRC it was on the passenger side. My '97 and '98 have factory duals, so they have them on both sides. _________________________ -Steve 2006 Audi A6 ~132k miles, stock. 1998 Mercury Grand Marquis LS HPP ~100k miles, slowly acquiring modifications. 1997 Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Contour E-fan Retrofit, Dual exhaust with Magnaflows, cats deleted, MSD Ignition, KYB Gas-A-Justs, P71 front bar, air ride reinstated, Projector retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit, holistic weight reduction as the parts fall off.. 1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12 Top #4026906 - 08/12/19 03:47 PM Re: General exhaust question [Re: ericp] AlleyG Climber Registered: 04/28/14 Posts: 835 Loc: Raleigh, NC Our '04 CVPI doesn't have them. Al _________________________ 2004 CVPI - 99k miles - RIP 1997 T-Bird LX - 103k miles 1994 Supra Turbo - 113k miles Previous Fords: 1988 T-Bird, 1995 T-Bird, 1996 Cougar Top #4026960 - 08/13/19 01:10 AM Re: General exhaust question [Re: BigMerc96] CrystalPistol Banned Over the Hill Registered: 10/16/01 Posts: 3474 Loc: Shenandoah Valley Originally Posted By BigMerc96 Early police cars did, not sure when they stopped. The '94 that donated its duals to my '96 had them, but it also had tailpipe resonators because there wasn't really any difference between P71 and "regular" CV/GMQ dual exhaust on the early Aeros. The stock single exhaust on my '96 only had the dampener on one side, IIRC it was on the passenger side. My '97 and '98 have factory duals, so they have them on both sides. My '01 Merc was a single exhaust car when bought, but it had two dampeners …. there where the Y pipe bolted at flanges to rear of cats. The '01 Ford HPP car I got the duals off of, bolted in place sans resonators (they are in the basement still, might use them as mufflers on my trike?) had two exact same place at the flanges. I know my '98 C V police car I was issued had them. Not sure about the '00 CVPI, but the '06 CVPI didn't have them. _________________________ ________________________________________ ____________________ Problems huh? Then Read THE Book. Signed: Natural Borne Neanderthal . 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Key: Admin, Global Mod, Mod Shout Box a_d_a_m: ESPECIALLY before we've had our coffee. a_d_a_m: of course, AFTER we've had our coffee, we remember to list some items for sale in the Classified section... TheShadow: I'll buy whatever you're selling if you promise not to ban me!! a_d_a_m: I make no promises, but I do have some goodies for sale in the Classifieds.... smmsmm1957: I amlogged on but not in list of "registered" and I seemingly do not have "new post" buttons smmsmm1957: thanks smmsmm1957: Iupdated my email and confirmed back so am now in the reg. users online list but still cant post Rootintootin: That's because you don't have any vowels in your screen name 2010_CVPI: New CVPI owner here. Saying hello from Ohio a_d_a_m: Hi from Cleveland a_d_a_m: (east side) 2010_CVPI: I'm from medina county 2010_CVPI: New to panthers. Just got 2010 PI a_d_a_m: very cool - welcome to the site Tanklifts: How do I post a question STUP71: Where is the easiest place to tap into my throttle and RPM signal? 2008 P-71. STUP71: can't seem to figure out how to post a thread. Sight is confusing JeffBoudah: Forum List > Find appropriate category > “New Topic” > Type in subject and post > Submit 87cr0wnv1c: Anyone ever Tuck bumpers on a 87 Vic? Florida_Mike: What are you going to tuck it with? A hammer? fofojoe: My heater core started leaking this evening.. but I just replaced it a year ago with an OEM Ford part. I want to cry fofojoe: Posted a thread about my heater core replacment - old OEM stock vs new Spectra Premium TheShadow: My vote is new stock Spectra Bigfluffytee408: id vote for the new one also - fofojoe: Appreciate the votes, got the Spectra and I should be installing it this weekend 👍 rjohnson618: P.0622 code.battery light on. battery is 12.6V, altenator 14.3V, power distribution box fuse #6 keeps blowing. i did a battery monitor reset it worked for a day and is still blowing fuses 2010_CVPI: My p7b that i got for $600. Didnt run. All i had to do was push fuel pump switch in trunk. Been driving since HA. Runs like a brand new car https://imgur.com/ga llery/xNe7ONk Rootintootin: I think you ought to put in for your Master Mechanic ticket. BlackNFast: That button on tje dash is nitrous TheShadow: Nitrous? And all this time I thought it was the Passenger Seat Eject...roflmao Sending... 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