Flow master super 44 resonance problem.
Thread Starter
Instructor
Joined: Jun 2018
Posts: 107
Likes: 28
Hi, little update, I ordered a bolt on H-pipe from summit, I struggle with the location, having to put it further back than ideal, and it’s changed the drone a little, but still there. So, I think I’ll get the mufflers done and hopefully be happy.
Thanks again.
Thanks again.
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Thread Starter
Instructor
Joined: Jun 2018
Posts: 107
Likes: 28
Instructor
Joined: Aug 2005
Posts: 237
Likes: 1
From: Lake Stevens Wa
I am running Summit racing welded turbo mufflers on my '77 Vette and it doesn't drone at all. They are a decent heavy gauge metal, sound great, and are CHEAP! I think they were about $30-35 each. Just my opinion, but mufflers can be a crap-shoot when it comes to drone. I bought a Hooker Aerochamer muffler for my jeep after hearing it on a friends Toyota truck(both 4cyl, 2.4L vs 2.5L). His truck sounded great, my Jeep sounded like crap and had the drone pretty bad.
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Thread Starter
Instructor
Joined: Jun 2018
Posts: 107
Likes: 28
I am running Summit racing welded turbo mufflers on my '77 Vette and it doesn't drone at all. They are a decent heavy gauge metal, sound great, and are CHEAP! I think they were about $30-35 each. Just my opinion, but mufflers can be a crap-shoot when it comes to drone. I bought a Hooker Aerochamer muffler for my jeep after hearing it on a friends Toyota truck(both 4cyl, 2.4L vs 2.5L). His truck sounded great, my Jeep sounded like crap and had the drone pretty bad.
Last edited by Mitty; Aug 19, 2018 at 05:45 AM.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Some muffler shops carry "white box" turbo mufflers, they are cheap. Get the dimensions you need of a superturbo that may fit.
Summit sells their own brand of super turbos that sound great, have a unique tone esp at idle. I had 0 resonance.
Point is if say Jegs or Summits shipping is too high perhaps someone local has something similar
I bought a set of 22" case 3" yrs ago as I was told dynomax was discontinuing that line.
Summit sells their own brand of super turbos that sound great, have a unique tone esp at idle. I had 0 resonance.
Point is if say Jegs or Summits shipping is too high perhaps someone local has something similar
I bought a set of 22" case 3" yrs ago as I was told dynomax was discontinuing that line.
Last edited by cv67; Aug 19, 2018 at 11:31 AM.
Melting Slicks
Joined: Feb 2007
Posts: 2,709
Likes: 269
From: S.E. MI
St. Jude Donor '15
I have the Summit stainless steel mufflers SUM-632501. They are $40 each and dont drone. I had magnaflow mufflers a few years ago and got rid of them because the drone was so bad it made my ears hurt.
Burning Brakes
Joined: Apr 2007
Posts: 1,039
Likes: 62
From: Kona Hawaii
Try Car Chemistry exhaust inserts .Cured my drone problem I used the optional end caps with no packing ..You will need to tack weld the caps on though ..
Vette is so much more a joy to drive now without that tiring drone !
Vette is so much more a joy to drive now without that tiring drone !