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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » mufflers

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    12/05/2015 11:08 AM  #1

    gordon43
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    Registered: 6/23/2013
    Posts: 35

    mufflers

    looking for some info on flowmasters.last summer I changed from longtube heddman header to hedman shorties.the result with flowmaster 40s was a lot more drone in the interior.i like the loud exterior sound of the 40s but the drone is more than I care for.was wondering if anybody had gone from 40s to the delta 40 and what the difference was?

     

    12/05/2015 2:54 PM  #2

    terry
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    From: vandalia, illinois
    Registered: 4/01/2013
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    Re: mufflers

    I have a 65 with an 87 302 HO and I'm running FM 40s with Hedman shorties and dont have any drone at all.

     

    12/05/2015 9:24 PM  #3

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: mufflers

    terry wrote:

    I have a 65 with an 87 302 HO and I'm running FM 40s with Hedman shorties and dont have any drone at all.

    Well Terry...............you hafta drive it on trips to hear if it drones or not!!! J/K!!!!
     

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    12/05/2015 9:27 PM  #4

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: mufflers

    You have tail pipes on that "puppy"?
    That seems to be the key on cutting down drone.
    Run'em allll the way out the back.

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    12/06/2015 7:43 AM  #5

    terry
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    From: vandalia, illinois
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    Re: mufflers

    6sally6 wrote:

    terry wrote:

    I have a 65 with an 87 302 HO and I'm running FM 40s with Hedman shorties and dont have any drone at all.

    Well Terry...............you hafta drive it on trips to hear if it drones or not!!! J/K!!!!
     

    OUCH!!!

     

    12/06/2015 1:03 PM  #6

    6sally6
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    From: Surfside Beach,SC
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    Re: mufflers

    terry wrote:

    6sally6 wrote:

    terry wrote:

    I have a 65 with an 87 302 HO and I'm running FM 40s with Hedman shorties and dont have any drone at all.

    Well Terry...............you hafta drive it on trips to hear if it drones or not!!! J/K!!!!
     

    OUCH!!!


    6s6
     

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    12/06/2015 1:14 PM  #7

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,349

    Re: mufflers

    I used to have Flowmaster 50's with 2-1/2" pipes in and 2-1/4" pipes out the back with Hedman headers on a 351W.  They were loud when accelerating but could barely hear the exhaust at highway speeds and zero drone.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    12/06/2015 2:46 PM  #8

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,599

    Re: mufflers

    I'm reminded of my '89 5.0 with Mac shorty headers, catted H-pipe, 2 chamber Flowmasters, and full 2-1/2" exhaust with GT turndowns.  It was an odd combo, but it sounded awesome. 

     

    12/06/2015 5:45 PM  #9

    Steve-G
    I FYI 24-7

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    From: Glen Rose,TX
    Registered: 4/01/2013
    Posts: 544

    Re: mufflers

    I used FM 40 on my 78 El Camino  with 383 2.5" exiting just behind the rear wheels. Nice sound no drone.
    Used Magna Flo on the 67 Mustang 5.0 exiting just in front of the rear wheels .To quite for my taste, but no drone.

     

    12/07/2015 9:09 PM  #10

    Ozblitz
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    From: Richmond, TX
    Registered: 4/14/2013
    Posts: 413

    Re: mufflers

    Love the 50 series Flows, they are easy on the ears on drives.  Sound great when they need to. Thats what I have in my GTO w/ Poncho 400.

     

    12/07/2015 9:57 PM  #11

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: mufflers

    [url=http://www.dosequis.com/videos/dos-equis-commercials#post/id/1"I don't always use a muffler..........butt when I do ..I prefer Blow Master 40's!!6s6]http://www.dosequis.com/videos/dos-equis-commercials#post/id/1


    "I don't always use a muffler..........butt when I do ..I prefer Blow Master 40's!!
    6s6[/url]
     

    Last edited by 6sally6 (12/07/2015 10:00 PM)

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    12/08/2015 7:55 AM  #12

    jerseyjoe
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    Registered: 4/01/2013
    Posts: 789

    Re: mufflers

    I am running Flowmaster Super 44's...2.50" pipes from Patriot 1.75 longtube headers,and turn downs....Cleveland 408" stroker.....you wanna hear Sweet........

    "Never put a question mark where God put a period "  Richard Petty
     

    12/08/2015 8:45 AM  #13

    72mach1Frank
    Active Member

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    From: western Ma
    Registered: 12/08/2015
    Posts: 7

    Re: mufflers

    I have Dynamax super turbos on my 72 mach1 and with stock manifolds and they sound wonderful with very little drone sound.

    We are the people our parents warned us about.  Jimmy Buffett.
     

    12/08/2015 3:22 PM  #14

    whlnut
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    From: Brunswick, GA
    Registered: 4/02/2013
    Posts: 317

    Re: mufflers

    MS-  did you have a particular reason for the different tube sizes? Better tailpipe fitment, perhaps? Quieter exit?

     

    12/08/2015 11:35 PM  #15

    True74yamaha
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    From: Salt Lake City
    Registered: 5/07/2013
    Posts: 2,537

    Re: mufflers

    I have a 65 289 stang with stock exhaust manifold h pipe 2.5" pipe all the way with flowmeter 40 sounds awesome but had drone at high speeds

    Last edited by True74yamaha (12/09/2015 11:24 AM)

     

    12/09/2015 8:35 AM  #16

    DC
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    From: Marshall, MI
    Registered: 4/01/2013
    Posts: 1,251

    Re: mufflers

    I now have 2-1/4 pipes on my race car from the X pipe back. It is a 306 cube, 10.2: 1 compression, Aluminum heads, 1-5/8 primary tube long tube, 600 cfm double pumper set up for road racing. The 2 -1/4 pipes make better torque than the 2 - 1/2 pipes. That means better lap times.

     

     

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