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08-17-2010, 08:25 AM
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CC Member
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Join Date: Jan 2010
Location: Sun City West,,
AZ
Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
Posts: 1,480
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Not Ranked
SPF standard sidepipe noise level
Can anyone tell me what the DB level is with the SPF MK111 standard sidepipes that are supplied by the factory? I am concerned about the noise being too loud since I live in a retirement community and really don't want to scare the old folks too much, well not too much anyway.  
Also, is there a difference in the tonal effect coming from SS pipes vs the mild steel?
Any help would be much apprecaited.
Thanks,  tin-man
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Be well, drive fast, live long 
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08-17-2010, 08:52 AM
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CC Member
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Join Date: Dec 2009
Location: Buckeye,
AZ
Cobra Make, Engine: FFR III 302
Posts: 178
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Not Ranked
I wouldnt worry about the noise, most are hard of hearing , a lot of Snowbirds so not many people in West are there, and if YOU dont have your hearing aid in the ear you cant tell either. Also potatoes work, put one in each of the road pipes and listen if its better or worse.
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08-17-2010, 09:24 AM
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CC Member
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Join Date: Mar 2010
Location: Beaverton,
OR
Cobra Make, Engine: SPO 2644 Roush 427R
Posts: 62
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Not Ranked
Short shift with low RPM and you'll be fine...
Grab some gears with high RPM's is a different story..
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08-17-2010, 09:36 AM
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CC Member
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Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
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Not Ranked
The stock SPF pipes are fairly quiet.
Don't worry about the neighbors.
Most upgrade to larger inside diameter pipes as the originals are extremely restrictive.
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Jim
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08-17-2010, 10:03 AM
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CC Member
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Join Date: Oct 2003
Location: Bainbridge Island,
WA
Cobra Make, Engine:
Posts: 709
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Not Ranked
When I had my car through the Bay Area Resources (BAR) in Calif. to get the car smog exempted 7 years ago the technician put a DB meter to my pipes at 2500 rpm at 4 feet away and measured 105 or 110 db. My neighbors in the Bay Area didn't take kindly to me firing up the Mighty 418 at 6 am every Saturday morning so I would coast out of my driveway and pop the clutch down the hill a few hundred yards away. My past experience with stainless steel pipes has been that they seem louder than others.
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08-17-2010, 10:06 AM
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Banned
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Join Date: Oct 2003
Location: Yorba Linda,
CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Not Ranked
You only live once. Install a pair of these and stir their tired and downtrodden souls!
[img] http://www.clubcobra.com/photopost/d...632Pipes_2.JPG[/img]
-Dean
Last edited by RedBarchetta; 08-17-2010 at 10:44 AM..
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08-17-2010, 10:08 AM
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CC Member
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Join Date: Aug 2000
Location: Glendale,
AZ
Cobra Make, Engine: SPF 468ci 550HP + 150HP NX Matching Shelby GT500 650HP
Posts: 4,230
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Not Ranked
Stock pipes are not real loud although over time the fiberglass packing deteriorates somewhat making them a bit louder. The SS aftermarket pipes are better designed, larger, costly, and you have your choice of sound level. Best choice is http://fireflyperformance.com/index.htm . I have the original ceramic coated pipes and have not had a problem in over 10 years of use. Still look like new.
AZ Bob
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AZCOBRA, AZBOBS Plates & JAFMO
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08-17-2010, 11:15 AM
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CC Member
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Join Date: Oct 2009
Cobra Make, Engine:
Posts: 607
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Go
Quote:
Originally Posted by skully
if you dont have your hearing aid in the ear you cant tell either. .
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lmao
sdr
1111111
________
TOYOTA LIMO SPECIFICATIONS
Last edited by somedayaurora; 02-21-2011 at 05:39 PM..
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08-17-2010, 01:45 PM
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CC Member
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Join Date: Oct 2003
Location: Bainbridge Island,
WA
Cobra Make, Engine:
Posts: 709
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Not Ranked
By the way, there is a direct coorelation to noise and horsepower. Mild motors seem to be "quiet" compared to those of us in the 500+ hp range.
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08-17-2010, 01:49 PM
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CC Member
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Join Date: May 2007
Location: Goshen,
ny
Cobra Make, Engine: Gary Edwards Racing 460
Posts: 444
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Not Ranked
LOL, I dont care what pipes you have. They will hear you leave and they will know you are coming home well before you get there.
__________________
Its not the will to win that matters....Everyone has that. Its the will to prepare to win that matters.
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08-17-2010, 02:25 PM
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CC Member
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Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
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Not Ranked
Quote:
Originally Posted by CBattaglia
LOL, I dont care what pipes you have. They will hear you leave and they will know you are coming home well before you get there.
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Unless you arrive home around 4PM.
Then they are all having dinner at Denny's!
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Jim
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08-17-2010, 11:42 PM
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CC Member
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Join Date: Jan 2010
Location: Sun City West,,
AZ
Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
Posts: 1,480
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Not Ranked
__________________
Be well, drive fast, live long
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08-17-2010, 11:49 PM
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CC Member
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Join Date: Jan 2010
Location: Sun City West,,
AZ
Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
Posts: 1,480
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Not Ranked
In Gods waiting room there are no downtrodden souls.
Quote:
Originally Posted by RedBarchetta
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that said, those pipes look awesome, where did you get them from, do tell.  tin-man.
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Be well, drive fast, live long
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08-17-2010, 11:54 PM
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CC Member
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Join Date: Jan 2010
Location: Sun City West,,
AZ
Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
Posts: 1,480
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Not Ranked
Quote:
Originally Posted by Skully
I wouldnt worry about the noise, most are hard of hearing , a lot of Snowbirds so not many people in West are there, and if YOU dont have your hearing aid in the ear you cant tell either. Also potatoes work, put one in each of the road pipes and listen if its better or worse.
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Skully, be nice now. tin-man  
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Be well, drive fast, live long
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08-18-2010, 08:58 AM
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CC Member
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Join Date: Dec 2009
Location: Buckeye,
AZ
Cobra Make, Engine: FFR III 302
Posts: 178
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Not Ranked
A lot of our friends live in Corte Bella, we live in Sun City Festival. Ear muffs work well, or ear phones , so you dont hear the noise. I always let the neighbors know when I leave and when I come back, kind of a let them know I didnt move.
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08-18-2010, 10:32 AM
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Banned
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Join Date: Oct 2003
Location: Yorba Linda,
CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Not Ranked
Quote:
Originally Posted by tin-man
those pipes look awesome, where did you get them from, do tell. tin-man. |
Stainless Specialties. Do a search under "muffler" and you will see a few threads on these. 'Jake' even posted a short YouTube video and his sounds just like mine (when they were fresh). Like all pipes, they deteriorate with age and get louder. They are a well built muffler but they need a transition cone to make them better. See this thread to explain.
Stainless Specialties muffler mods...
I recently bought a complete spare set of pipes and will be working on a second set in the near future. Not sure yet if I'm going to go with the same mufflers or try something else. Either way, I need to incorporate a transition cone to keep the deacceleration flutter to a minimum.
Regards,
-Dean |
08-18-2010, 10:43 PM
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CC Member
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Join Date: Jan 2010
Location: Sun City West,,
AZ
Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
Posts: 1,480
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Not Ranked
Quote:
Originally Posted by RedBarchetta
Stainless Specialties. Do a search under "muffler" and you will see a few threads on these. 'Jake' even posted a short YouTube video and his sounds just like mine (when they were fresh). Like all pipes, they deteriorate with age and get louder. They are a well built muffler but they need a transition cone to make them better. See this thread to explain.
Stainless Specialties muffler mods...
I recently bought a complete spare set of pipes and will be working on a second set in the near future. Not sure yet if I'm going to go with the same mufflers or try something else. Either way, I need to incorporate a transition cone to keep the deacceleration flutter to a minimum.
Regards,
-Dean |
Hi Dean, thanks for this information, I will follow up with Stainless Specialties. Regarding the sound, regretfully I cannot access You Tube in China, its blocked by government censors. By any chance do you happen to have a digital visual with sound that could be sent to me by a PM?
I would be very grateful if this could be accomplished and I could finally get to hear what is being discussed. tin-man
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08-18-2010, 11:09 PM
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Banned
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Join Date: Oct 2003
Location: Yorba Linda,
CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Not Ranked
Sorry I can't help you on that one. Maybe someone else here has the skills to take a YouTube video and convert to another format and send it across.  |
08-18-2010, 11:13 PM
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Senior Club Cobra Member
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Join Date: Jan 2007
Location: Sacramento,
CA
Cobra Make, Engine: Superformance 460 SVO
Posts: 305
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Not Ranked
Red, glad to see your back
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08-19-2010, 05:35 AM
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CC Member
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Join Date: Jun 2003
Location: Luxembourg: EUROPE:,
LUX
Cobra Make, Engine: SPF 1476 - Keith Craft 445ci, 636hp 613tq
Posts: 212
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Not Ranked
Tin-Man,
I had my standrd SPF now for 7 years, (changed to firefly) as said already you will be heard before you are even seen. I live in a very quiet area and to respect the others i keep the RPM low and short gears until im further out.
Coming home at 3am is a no no...
But just do it, but keep the RPM's down.
Happy cruising
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