Options for Sidepipe MUFFLERS?
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 845
Likes: 12
From: LAKE BARRINGTON IL
Options for Sidepipe MUFFLERS?
Hi guys,
Running a 454...was gonna go with the stock 70 454 pipes and mufflers...BUT am looking at trying to improve this...since they are 2.5 inch push bent (so probably 1.75 at the bends)...wanted mandrel or true 2.5 inch pipe...BUT the burning question is the mufflers...
SO upgrade the sidepipe mufflers from stock...anyone do this?
what did you use?
Thanks!
Ron
Running a 454...was gonna go with the stock 70 454 pipes and mufflers...BUT am looking at trying to improve this...since they are 2.5 inch push bent (so probably 1.75 at the bends)...wanted mandrel or true 2.5 inch pipe...BUT the burning question is the mufflers...
SO upgrade the sidepipe mufflers from stock...anyone do this?
what did you use?
Thanks!
Ron
Racer
Joined: Mar 2009
Posts: 276
Likes: 31
From: Brant County Ontario
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Drifting
Joined: Jun 2008
Posts: 1,565
Likes: 111
I agree with qwank, you have to build them. My car has the Stainlessworks headers along with their sidepipe mufflers which neck down to less than 2" at the muffler inlet. I am going to replace the sidepipes with custom 3" pipes and auger-style inserts.
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 845
Likes: 12
From: LAKE BARRINGTON IL
Thanks!
I oddly hooked up with Lou Belanger of Belanger headers/exhaust. He is big in Viper performance. Will be talking to him about some good flow/good sounding pipes. He advised 2.5 inch to equal mufflers. Will get more info from him and see where this can go.
Thanks!
R
I oddly hooked up with Lou Belanger of Belanger headers/exhaust. He is big in Viper performance. Will be talking to him about some good flow/good sounding pipes. He advised 2.5 inch to equal mufflers. Will get more info from him and see where this can go.
Thanks!
R
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 845
Likes: 12
From: LAKE BARRINGTON IL
Hi Guys!,
OK! consulted 2 engine builders (legit guys), they advised 2.5 inch pipe, and stock mufflers. both said any race muffler will be too loud.
also talked it through with Lou Belanger...Belanger headers & exhaust...great guy.
He advised going stock ALSO b/c will be easier on sound and performance will not change...unless do 1/4 mile stuff...then he said it will be like .2...
so went with the stock sweet thunders! Will let you know when done this month.
Thanks for all the info and help!
OK! consulted 2 engine builders (legit guys), they advised 2.5 inch pipe, and stock mufflers. both said any race muffler will be too loud.
also talked it through with Lou Belanger...Belanger headers & exhaust...great guy.
He advised going stock ALSO b/c will be easier on sound and performance will not change...unless do 1/4 mile stuff...then he said it will be like .2...
so went with the stock sweet thunders! Will let you know when done this month.
Thanks for all the info and help!
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
I think you are going to leave horsepower on the table going with stock mufflers. the gains you will get with the expensive aluminum heads you bought will be lost with the choking 1.8'' pipes.
and you have to look at them hanging down from under the covers too
and you have to look at them hanging down from under the covers too
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 845
Likes: 12
From: LAKE BARRINGTON IL
actually I like the stock covers...saves skin ALL the time!
That is the only difference...I will have a true 2.5 inch pipe from the collector to the muffler. then stock sweet thunders...
I did think that about wasting HP...but both engine builders AND the Belanger said it will not be noticed, unless quarter miling it. they all agreed it will run/pull fine. they said 3" will be loud (which i really dont want b/c it will be loud anyway, and I dont like my ears ringing) and really not necessary...that it will flow just fine with 2.5 ....AND they only issue with be that PUSH BEND- which we will not have....
That is the only difference...I will have a true 2.5 inch pipe from the collector to the muffler. then stock sweet thunders...
I did think that about wasting HP...but both engine builders AND the Belanger said it will not be noticed, unless quarter miling it. they all agreed it will run/pull fine. they said 3" will be loud (which i really dont want b/c it will be loud anyway, and I dont like my ears ringing) and really not necessary...that it will flow just fine with 2.5 ....AND they only issue with be that PUSH BEND- which we will not have....
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
I like the stock covers too, but the stock mufflers hang down 90% of the time. I think the only person here who's doesn't is Allen's and I still think it's just the angle he took the pictures. 
you might not notice the power difference putting the stock mufflers on a fresh new motor that you haven't driven yet, but I guarantee if you open up the exhaust down the road, you're going to wish you did it from the start.
you might not notice the power difference putting the stock mufflers on a fresh new motor that you haven't driven yet, but I guarantee if you open up the exhaust down the road, you're going to wish you did it from the start.