5.0L exhaust setup

[mr j-man]

hey!
just about to get my exhaust setup done. runnin a 5.0l efi in a vh with pacemakers and am wondering whats the best setup without having that droning sound like a woonded cow! ive been getting mixed options from various shops around town. so all your opinions are welcome
thanks

[mr j-man]

some links to photos would be good too! just so i can get a visual

[Darren_L]

Best advice I can give you in regards to avoiding the drone, is to fit a rear resonator. Without a resonator, you are very likely to end up with a drone somewhere across the rev range.

I haven't got photos, but I've got pacemakers on my 304, pipes run off the extractors and the Y pipe joins up into a single 3 inch at the handbrake cable adjuster area, into a 3inch superturbo muffler, over the diff and exits the rear through a 3inch resonator
you can hear the exhaust note in the clip below.
YouTube - Lakeside Raceway Qld - trackday 24/09/2010

[mr j-man]

Best advice I can give you in regards to avoiding the drone, is to fit a rear resonator. Without a resonator, you are very likely to end up with a drone somewhere across the rev range.

I haven't got photos, but I've got pacemakers on my 304, pipes run off the extractors and the Y pipe joins up into a single 3 inch at the handbrake cable adjuster area, into a 3inch superturbo muffler, over the diff and exits the rear through a 3inch resonator
you can hear the exhaust note in the clip below.
YouTube - Lakeside Raceway Qld - trackday 24/09/2010

id imagine you have catylic converter on yours to meet emissions? if so are u runnin one or two?

[Darren_L]

id imagine you have catylic converter on yours to meet emissions? if so are u runnin one or two?

nah I've got a VK engine block (304 internals), so don't need a cat

[Reaper]

hey!
just about to get my exhaust setup done. runnin a 5.0l efi in a vh with pacemakers and am wondering whats the best setup without having that droning sound like a woonded cow! ive been getting mixed options from various shops around town. so all your opinions are welcome
thanks

If it's a relatively mild motor then a 2 1/2" system with some good quality mufflers will work and sound great. You won't have to worry about the epa sound police being after you either.

Reaper

[dirt drifter]

ive got a mild 5L (cai and tiny cam) with pacies, Y piece, single cat into 2.5 inch pipe, muffler, 2.5 back from there and a hotdog at the back, its good.

sounds like a V8 around town but not too loud, u can barely hear it on the highway unless u lean on it

[mr j-man]

one dude told me a good setup was to run 3" from the headers all the way through until the rear hotdog/resonator then 2-1/2 out! any opinions on this!

[mr j-man]

Best advice I can give you in regards to avoiding the drone, is to fit a rear resonator. Without a resonator, you are very likely to end up with a drone somewhere across the rev range.

I haven't got photos, but I've got pacemakers on my 304, pipes run off the extractors and the Y pipe joins up into a single 3 inch at the handbrake cable adjuster area, into a 3inch superturbo muffler, over the diff and exits the rear through a 3inch resonator
you can hear the exhaust note in the clip below.
YouTube - Lakeside Raceway Qld - trackday 24/09/2010

what size is the Y piece of the headers? i checkd ya vid out...it does have a good sound to it!

[Reaper]

one dude told me a good setup was to run 3" from the headers all the way through until the rear hotdog/resonator then 2-1/2 out! any opinions on this!

On a mild or street motor I'd say it's too big. Exhausts for power is all about keeping the gas hot and flowing fast which gives you the best scavenging effect = powah! Go too big and the gas slows & cools too fast thus the scavenging effect doesn't happen. Of course you do need the pipes to be large enough that they don't create a restriction but for street cars pipes don't need to be particularly large. The biggest restriction in OEM exhausts are from cheap mufflers.

Reaper

[immortality]

Reaper is on the money, for a streeter smaller is better then larger. larger pipes will give you more top end power at the cost of the low to mid range which is where 90% of a daily driver spends it's time.

have a read of this thread, has some good suggestions (and some not so good ones) and some good info.

exhaust-isms

i prefer a full twin system, depending on how warm the engine is i'd suggest twin 2.25 into a muffler each and then twin 2" over the diff and out the back or go for a twin into single system, twin 2.25 joined into a single 2.5" going into a muffler just before the diff and out the back or if the engine is stockish then twin 2" into a single 2.25" muffler over the diff and going out the back. if it drones then fit a resonator after the diff

[mr j-man]

On a mild or street motor I'd say it's too big. Exhausts for power is all about keeping the gas hot and flowing fast which gives you the best scavenging effect = powah! Go too big and the gas slows & cools too fast thus the scavenging effect doesn't happen. Of course you do need the pipes to be large enough that they don't create a restriction but for street cars pipes don't need to be particularly large. The biggest restriction in OEM exhausts are from cheap mufflers.

cheers for the info...sounds like u kno a bit! i want that grunty growl kinda sound...within a few months im doin my cam setup, headwork and some flattops. i want something different rather than just a 2'1/2 straight through as thats what i was running on my super6. (this is a configuration ive thought off). So with the pacies havin a 2'1/4 outlet! Then from there go to 2'1/2 Y, then into a 3' merge, 3'hiflo cat, 3' straight thru muff, 3' thru to the resonator and 2'1/2 out the back.
Any thoughts????

[immortality]

size the exhaust to suit the head work/cam that you intend to fit otherwise you'll end up doing it twice

[Darren_L]

....................

[Darren_L]

what size is the Y piece of the headers? i checkd ya vid out...it does have a good sound to it!

cheers, I like the sound and it's legal for a VH as well (95.4dB)

the Y-pipe off the headers the same diameter as the header pipes and then joins into a 3 inch. Can't exactly remember what size that is (been 8 years!) but it's the same diameter as the header outlet pipes.

[cala1s]

YouTube - Holden VN V8 idle and rev

[DANNY8]

YouTube - Holden VN V8 idle and rev

Time for an LSD? lol

[mr j-man]

YouTube - Holden VN V8 idle and rev

whats that setup?

[lildavo]

my vt 5l is running a twin 2.5" have heard some people running straight 3" with mufflers to keep some persure in the system but there manly after a deeper louder note. mine isnt very loud but you can tell it a v8 when you drive past or give it to it.

[mr j-man]

ive been contemplating a twin system over the last few days..but not sure tho!

[agrsv8]

Heres my SS back a couple of years ago

tri-ys +twin cats + cross pipe + twin redback mufflers into single oval tip = YouTube - ‪VP SS-Exhaust Competition‬‏

[mr j-man]

Heres my SS back a couple of years ago

tri-ys +twin cats + cross pipe + twin redback mufflers into single oval tip = YouTube - ‪VP SS-Exhaust Competition‬‏

what size piping? ive seen your car on youtube many a time and admire the sound. 276 sounds sweet too! cheers

[agrsv8]

thanks mate, cars a bit different now, yet to be released to the public

here is what it had:

http://s774.photobucket.com/albums/y...sexhaust-1.png