5.0 Exhaust drone driving me crazy - v8 Miata Forum - Home of the v8 Miata Conversion
v8 Miata Swap Chat


V8 Miata Exhaust Air In/Air Out...This area focuses on allowing your V8 Miata to exhale in the most efficient and acoustically pleasing manner possible.

Reply
 
 
 
LinkBack Thread Tools Search this Thread Rate Thread
Old 04-15-2017, 08:00 PM   #1
V8 Miata Fan
Thread Starter
 
Join Date: Feb 2014
Location: San Antonio
Posts: 97
Thanked 3 Times in 3 Posts
Default 5.0 Exhaust drone driving me crazy

I have a NA 5.0 with shorty headers, BBK X pipe, and 40 series Flow Masters. The exhaust is very aggressive sounding but below 2500 RPM the exhaust drones. It will give anyone a headache in just a few minutes.
I need a fix and am hopeful it will only require different mufflers. What are ya'll guys experience and/or sudjestions?
rowen210 is offline   Reply With Quote
Old 04-15-2017, 08:30 PM   #2
V8 Miata Fan
 
Join Date: Dec 2009
Posts: 39
Thanked 0 Times in 0 Posts
Default

I have old-school air-injected cats, cross pipe, and small resonators ahead of my Magnaflows to avoid the drone. Still got it, mine is at 1500-1600 rpm then goes away.

I read somewhere that the cure is something like this--
https://www.f150forum.com/f38/exhaus...e-cure-208112/

Good luck,
TM
topdownfun is offline   Reply With Quote
Old 04-16-2017, 02:21 PM   #3
V8 Miata Fan
 
Join Date: Nov 2009
Posts: 78
Thanks: 0
Thanked 2 Times in 2 Posts
Default

I have Magnaflow cats, an X-pipe, and Dynomax Super Turbo mufflers and zero drone. In fact, it's very tame sounding. I attribute that primarily to the mufflers.
Casey is offline   Reply With Quote
Old 04-17-2017, 09:17 AM   #4
V8 Miata Participant
 
V8MiataMike's Avatar
 
Join Date: Nov 2014
Location: Atlanta, Ga
Posts: 286
Thanks: 0
Thanked 11 Times in 10 Posts
Default

40 Series Flow Masters = drone...
V8MiataMike is offline   Reply With Quote
Old 04-18-2017, 07:57 AM   #5
V8 Miata Zealot
 
tbone heller's Avatar
 
Join Date: Mar 2010
Location: Canton, Georgia
Posts: 1,058
Thanked 32 Times in 30 Posts
Default

There used to be instructions in the Mustang Flowmaster Exhaust Kits recommending the installation of an additional crossover pipe placed downstream of the factory crossover pipe to eliminate drone.
tbone heller is offline   Reply With Quote
Old 04-24-2017, 09:21 PM   #6
V8 Miata Fan
 
Join Date: Oct 2013
Location: Ottawa, ON
Posts: 29
Thanks: 0
Thanked 2 Times in 2 Posts
Default

I had Flowmaster Super40s on my Miata when I bought it but the drone - esp with the top up - was impossible to live with. I swapped them out for Flowmaster dBX mufflers and problem solved. Sound is still awesome IMHO.
Hear it here
and

Darren
antonego is offline   Reply With Quote
Old 04-25-2017, 01:15 PM   #7
Administrator
 
MRM331's Avatar
 
Join Date: Nov 2009
Location: Allentown, PA
Posts: 1,098
Thanks: 0
Thanked 27 Times in 25 Posts
Default

I had unequal length resonators put on one of mine to solve the issue. The different lengths made each pipe "sing" at a slightly different pitch which kept them from droning (think two baritones singing in harmony instead of in unison). On my last one I had no resonators and Borla ProXS mufflers-also no drone but way too quiet until you stepped on it. I added a set of dumps for the track so I'd be at least as loud as the turbo Miatas.
-Jason
MRM331 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Trans tunnel braces driving me crazy Jerryg General Motors V8 Discussion 8 11-10-2015 06:53 PM
Crazy Action Scene *video rick Anything Goes 0 01-26-2011 12:37 PM
FM LS exhaust is now available! Keith V8 Miata Exhaust 7 01-19-2011 12:06 PM
Chevy offers free driving school to all Corvette buyers for limited time v8 Miata News Guy Various Auto News 0 01-14-2011 09:06 AM
FM prototype exhaust is here! Keith V8 Miata Exhaust 10 07-26-2010 08:52 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 12:22 AM.