dual exhaust for v6??

[Immortality]

twin 2.25" system but step it back to twin 2" after the first muffler........

for a stock standard V6 the 2.25" single exhaust is ideal, just need to fit some decent mufflers in it

edit: a V6 will never sound like a V8 because a V6 doesn't have a double exhaust pulse from one bank which gives the V8 that distinctive burble

 

[soop]

so im just going to waste my money on a set of extractors then forget about it? i dont think so......
sorry as if i dont know as much as you, you've probs got 10+ years on me.......
if i was carrying on like a twat because every other thread ive read said twins are no good then i go put one up and people tell me there perfect so i thort you's were bullshitting to me, i actually apprecaite the help.

Its the attitude I was most annoyed with.

Before you start modifying the car, you've gotta decide what you want to do, and how far you're going to take it so you can put together a decent package.
If you want to go playing with cams and such, I suggest getting some proper long tuned length extrators and a twin 2.25" system.

If all you want is something that is really loud a single 2.5" will do that.

Remember, you can't change one thing and expect it to have no impact on something else.
look and the intake, (From the air filter to the manifold) cam (Take into account the standard compression of the motor) and exhaust manifolds before you even consider going out and doing the first mods.
If you seriously want to modify it, then do it properly from the get go, it doesn't really matter what you start with, so long as when you do the mods they're in line with where you want to end up?

So basically don't go getting an exhaust setup that favors a totally standard motor if you plan to change the cam or rebuild the bottom end to bump the compression up a little.

 

[HamaTime™]

hi boys i know there is heaps on this allready but everyone seem to have diffrent thoughts on it
basicly i want the best sounding note out of my vn without the drone like most have.
i just brought a set of tuned length, Mandrel Bend "pacemaker" extractors
Primary Pipe:
1 ½"
N/A Outlet (flanged):
2 ¼
and im just wondering where to go from here.?? im not even on my L"s yet so i dont want it to be the loudest out there to bring attention to my self. (maybe a exhaust cut out for that :hmmm but i want a deep rumble. as close to a v8 as possible. the motor has had a bit of work shaved heads shimmed values ported intake v8 throttle body and maybe a tiny cam.
yeah i know twins are **** as most people go 2.25, but what if i went 1.75" anyone have a set up like this?? hows it sound?
the other problem i have is the body kit, the rear bar dont have anywhere for the exhaust to actually come out!! if you get me

anyhelp with this would be killah cheerrs

Your not even on your L's yet and your worried about sound. Also it's a VN with a buick, worst sounding motor in the world.

You won't get a V8 sound out of a V6...Why? Because you are two cylinder's short and a different firing order etc etc etc.

no back pressure is what u want. google scavenging and read about it. thats want u want. twin 2.25 is near pefect size for a v6

Twin or single 2.25 is good, twin is a bit much IMO for a stockish motor, single with hiflo muffler/extractors is plenty enough.

why would i read up on scavenging?? what dose that have to do with my exhaust in the slightest? if a Twin 2.25 is "near pefect" why do people only run a single 2.5"???
would twin 2.25's running straight off the extractors kill all the flow velocity??

i just want a decent sounding exhaust, with out the BS im getting.

Single 2.5" isn't as efficient as people think it is...Makes it louder, makes it drone, makes it lose bottom end.

Decent sounding exhaust on a buick is impossible. It's not a good sounding motor.

well obviously u need to search for scavenging in relation to exhaust gasses. not just the actual term itself..
u need to accept that most v6's dont sound too good mate. u say u want " as close to a v8 as possible" so i would go a twin. it should give u a bit of a choppy v8 like sound
go twin cats, twin muffler, resi if u can afford it. other wise just get the single 2.5" theyre pretty cheap i sold mine for 100 bucks

Twin 2.25 IMO

so im just going to waste my money on a set of extractors then forget about it? i dont think so......
sorry as if i dont know as much as you, you've probs got 10+ years on me.......
if i was carrying on like a twat because every other thread ive read said twins are no good then i go put one up and people tell me there perfect so i thort you's were bullshitting to me, i actually apprecaite the help.

When's school holidays over???

 

[aussie_muscle_6]

Its the attitude I was most annoyed with.

Before you start modifying the car, you've gotta decide what you want to do, and how far you're going to take it so you can put together a decent package.
If you want to go playing with cams and such, I suggest getting some proper long tuned length extrators and a twin 2.25" system.

If all you want is something that is really loud a single 2.5" will do that.

Remember, you can't change one thing and expect it to have no impact on something else.
look and the intake, (From the air filter to the manifold) cam (Take into account the standard compression of the motor) and exhaust manifolds before you even consider going out and doing the first mods.
If you seriously want to modify it, then do it properly from the get go, it doesn't really matter what you start with, so long as when you do the mods they're in line with where you want to end up?

So basically don't go getting an exhaust setup that favors a totally standard motor if you plan to change the cam or rebuild the bottom end to bump the compression up a little.

as far as things go, from what ive been told when i brought it. the engine was fully rebuilt new pistons rings bearings gaskets i carnt rember what he said about the cam but it sounds a little lumpy not much tho. he had the heads shaved and shimmed and port matched ect v8 throttle body.
as far as i want to go right now im just thinking of doing the exhaust and CAI , dont really want to spend to much on it as it will be getting a v8 dropped in once im off my P's. its manual aswell to thats a bouns

Best Mufflers the Muffler and Exhaust Specialists
here the link to the exact same extractors i brought

do you think there suited to the motor if maybe i decide to put a bigger cam in later on?
like i said i dont want it to lound just something with a nice note thats not going to give me to much unwanted attention
so yeh the twin 2.25 is sounding the way to go. but should i use the "y" piece or just start the exhaust straight of each extractor? with twin stock cats then into mufflers ect??

once again thanks for the help

 

[soop]

Personally I would go with twin cats and then run them into a couple of mufflers.

Mufflers is where the sound is made really. If you don't want a cheap shitty sound like most cars on here, get GOOD mufflers, not cheap shitty red back items.
Is it a Buick or "Ecotec"?

 

[JSTCOZ]

Everyone here is giving this kid good reponses yet he is is being a total -insert word of your liking- to responses and knowledge given to him. Waste of time... ahh well, he's back in school now lol

 

[2DIE]

As soop said, 2.5" is loud enough and will flow enough for your needs.

Unless you are planing for a supercharger or turbo there isn't much chance you will need to go any bigger.

2.5" and a K&N or Lukey air filter, and a full service will do a lot for it.

BTW 2.5" wont drone if you have 2 mufflers, most people only get 1.

Making up a twin system for a VN V6

You asked if tiwns would any good for your set up and basicly everyone said no.

If you have the cash and want to do it anyway then go and do it, if its what you want and you are set on it.

You are 15 and own a HZ ute, VH and a VN?

I just looked up a couple of your posts, did you put the 308 in the in the VH wagon with the 253 in it yet? Did you put the 308 in the HZ ute that had the 202 in it yet either?

What happend to this theory you had for an exhaust when giving advice to someone else "copper pipe if u have the coin for it!" ?

And this advice given to someone else back in May "wouldnt you be better off with a nice 308?? or a injected 304?, if it was me i wouldnt waste time or money on a v6" ?

 

[Not_An_Abba_Fan]

I thought about it.....then I couldn't be bothered.

 

[SuperSixty6]

All i thought about, Was 'LOL' at Soop getting another exhaust thread

 

[TI3VOM]

as far as things go, from what ive been told when i brought it. the engine was fully rebuilt new pistons rings bearings gaskets i carnt rember what he said about the cam but it sounds a little lumpy not much tho. he had the heads shaved and shimmed and port matched ect v8 throttle body.

The one thing I don't understand is that this guy that owned it before you, spent all this money on the engine doing what he told you, but yet did not upgrade the exhaust!!