![]() |
|
Welcome to the Australian Ford Forums forum. You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact us. Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated. |
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 | ||
Starter Motor
Join Date: Jul 2018
Posts: 4
|
Hi guys,
Was a member a long time ago but unfortunately had to sell my old car. But I am now back in a ford on the form of a BA XR8. I'm looking for advice with the exhaust. When I bought it there had been a twin 2.5" cat back manta exhaust, twin pipes went into a big single center muffler then into a large resonator on each side at the rear. with duel rear exit and quad tips. Looked great. But was very quiet. Almost sounded like a 6 unless I opened it up. I replace the middle muffler with twin pipe so it was straight through into the mufflers at the rear. Sounds way better. But still isn't what I want. And it may just be mind over matter but it feels slower than it was before. After doing some research I found that twin hot dogs in the center and twin dogs at the rear sounds amazing, but before I do this is this a good move performance wise? What is the best option performance wise. Sorry if this has been covered before but I just don't know enough about this subject. TIA Kane |
||
![]() |
![]() ![]() |
![]() |
#2 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
|
is there a merge pipe or was the merge in the centre muffler? merge pipes kill noise but help scavenging and power
__________________
CURRENT RIDES BA GT Mk1 #0009 - Narooma Blue SY Ghia AWD Black VZ LX8 Adventra Holden HX 50th Anniversary AU Saloon Car racecar 1980 GS1000ST - Wes Cooley Rep
|
||
![]() |
![]() ![]() |
![]() |
#3 | ||
Starter Motor
Join Date: Jul 2018
Posts: 4
|
The exhaust fitter said he removed something that he called a mixer. From what I know from the cats there is straight pipe all the way to the twin exit rear mufflers
|
||
![]() |
![]() ![]() |
![]() |
#4 | ||
Starter Motor
Join Date: Jul 2018
Posts: 4
|
The mixer as he called it was before the center muffler
|
||
![]() |
![]() ![]() |
![]() |
#5 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
|
that would be the crossover, like and x-pipe but int he muffler. it would sound fluffy without it and maybe more like a new mustang??
got any sound files? my GT sounds too smooth so i'd like to remove the centre muffler i have a similar system on my LS1 and sounds crap just drones
__________________
CURRENT RIDES BA GT Mk1 #0009 - Narooma Blue SY Ghia AWD Black VZ LX8 Adventra Holden HX 50th Anniversary AU Saloon Car racecar 1980 GS1000ST - Wes Cooley Rep
|
||
![]() |
![]() ![]() |
![]() |
#6 | ||
Starter Motor
Join Date: Jul 2018
Posts: 4
|
It sounds a little bit fluffy. I will take some photos and a sound clip later today and post them up. I will have it on a hoist later today. Removing the center muffler definately killed 90% of the drone. And I'm not unhappy with how it sounds now. Just worried that I may be suffering performance wise. No point having a beastly sounding car that is under performing
|
||
![]() |
![]() ![]() |
![]() |
#7 | ||
FF.Com.Au Hardcore
![]() Join Date: Nov 2007
Location: Riff
Posts: 12,354
|
What does fluffy sound like?
__________________
FGII XR6 IN LIGHTNING STRIKE R52 SIII IN GUN METALLIC |
||
![]() |
![]() ![]() |
![]() |
#8 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
|
not a good example but this is my old AU XR8 with a cam and straight through exhaust with hot dogs only
it was really choppy and it was through the whole rev range
__________________
CURRENT RIDES BA GT Mk1 #0009 - Narooma Blue SY Ghia AWD Black VZ LX8 Adventra Holden HX 50th Anniversary AU Saloon Car racecar 1980 GS1000ST - Wes Cooley Rep
Last edited by ebv8; 12-07-2018 at 02:57 PM. |
||
![]() |
![]() ![]() |
![]() |
#9 | |||
Moderator
![]() ![]() Join Date: Feb 2005
Location: Kenthurst
Posts: 40,394
|
Quote:
Only use the section after "=" in the youtube URL between the [yt] tags
__________________
The Current Stable 2016 SZII TS Territory RWD Petrol The Evolution of the EGA54D utes AU Workshop Build thread of EGA54D B-Series Workshop Build thread of EGA54D 2004 SX TX Territory AWD - Gone but not forgotten 2010 FG XT "The ex-rental" - Moved onto a new home Mechan1k's Flickr Page |
|||
![]() |
![]() ![]() |
This user likes this post: |
![]() |
#10 | ||
FF.Com.Au Hardcore
Join Date: Jun 2017
Posts: 1,341
|
I have extractors, 200 cell cats, x-pipe, dual two & one quarter inch pipes and just two mufflers. I am really happy with the sound, quiet enough around town but when you floor it, its loud and has definitely improved performance. This is on a 302 Windsor, not the 5.4 motor, but the lesson I learnt was to go a little smaller in diameter to aid scavenging and leave off the resonators that most add after the two mufflers. Definitely add an X-pipe as well, it helps smooth out the sound and maximise power. Have a chat to Best Exhaust & ask for Chris. He has been doing this for 30 years.
https://www.bestmufflers.com |
||
![]() |
![]() ![]() |
![]() |
#11 | |||
PURSUIT 250
![]() Join Date: Mar 2009
Location: sydney
Posts: 5,775
|
Quote:
|
|||
![]() |
![]() ![]() |