Fastlane
»
Holden Forums
»
Holden General Discussion
»
Advice on exhaust size - 350 chev hx wagon
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
I have nearly completed my 202 to 350 conversion and would like some advice on what size exhaust to install. I have a stock 350, tri y extractors with 2.5 inch collectors. The subject vehicle is a hx wagon. Im considering a single 2.5 or 3 inch exhaust. I have heard that the fuel tank gets in the way for twin exhausts on the wagon and can see there is not much room to squeeze a pipe through on the drivers side where the fuel tank is filled.
What do you reckon?
|
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 2,047
|
you can run a twin Ive seen plenty of them, I`d go 2 1/2 twin mandrel bent with a balance pipe between them, if you go too big you may lose some back pressure.
|
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
Thanks for the advice, do the twin exhausts you have seen go under or over the diff?
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 29/06/2005(UTC)
Posts: 706
|
in my HQ 350 sedan i have 2 1/2 twin bent mandrel. mine go over my diff. 
Rare Spares Perth (REX SPARES) Representative. If you have an enquiry, feel free to message
|
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
|
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
2.5 thru slight offset muffler and 2.75 out single system..
He who hesitates, -Masturbates. |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
Adam, how does the single system perform and sound on your vehicles?
You have had a few 350s so is this your preferred system?
I met you last year looking for a 308 block for a mates drag car... Im from Bunbury.
Cheers
|
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
Adam, how does the single system perform and sound on your vehicles?
You have had a few 350's so is this your preferred system?
I met you last year looking for a 308 block for a mates drag car... Im from Bunbury.
Cheers
|
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 3/08/2007(UTC)
Posts: 1,902
|
single system seems to give a better all round performance .
sounds better,. all personal preference .
the twin systems are ok down low, and 4 letting people know when you in town.- they can be more individual note than a single.
I think twin 3" syst |
Old holdens brought on the spot, quick decision, cash paid. |
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 2,047
|
back in the eighties they used to do a `brock system` I had one made up for a HQ sedan ,extractors 2 1/2 mandrel bent single system with a semi free flowing muffler, this was on a 253 with a mild cam and it had plenty of grunt, so on a 350 it would be swe
|
|
|
|
|
|
Fastlane
»
Holden Forums
»
Holden General Discussion
»
Advice on exhaust size - 350 chev hx wagon
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
