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P/m 4480 Q's 

 

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 Post subject: P/m 4480 Q's
Posted: Sat Apr 26, 2008 8:15 pm 
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Im looking for new extractors lately, the 4480 in particular, i have found a second hand set and from the pictures of them the pacemaker badge is on the 4th prim pipe, been looking at forum members pics of them with the badge on the 5th primary pipe,

Just wondering was there a design change? i have been told that they used to have 38mm primaries then they changed to 41mm is that right?
im getting the guy to measure em for me.
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 Post subject: Re: P/m 4480 Q's
Posted: Sun Apr 27, 2008 9:40 pm 
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Joesau wrote:
Im looking for new extractors lately, the 4480 in particular, i have found a second hand set and from the pictures of them the pacemaker badge is on the 4th prim pipe, been looking at forum members pics of them with the badge on the 5th primary pipe,

Just wondering was there a design change? i have been told that they used to have 38mm primaries then they changed to 41mm is that right?
im getting the guy to measure em for me.


There was a design change on the 4480's at some stage in the last few years. As for the specifics, I'm no sure, sorry!
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Posted: Thu May 15, 2008 1:07 am 
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is $430 plus $40 postage a good price for 4480's?

brand new.

does anyone know how much pacemaker sell them for off the shelf?

 

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Posted: Thu May 15, 2008 1:36 am 
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More Grunt wrote:
is $430 plus $40 postage a good price for 4480's?

brand new.

does anyone know how much pacemaker sell them for off the shelf?


I payed $450 installed 3 years ago max.

 

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Posted: Thu May 15, 2008 2:15 am 
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twr7cx wrote:
More Grunt wrote:
is $430 plus $40 postage a good price for 4480's?

brand new.

does anyone know how much pacemaker sell them for off the shelf?


I payed $450 installed 3 years ago max.


this isnt installed its just the unit...

http://cgi.ebay.com.au/PACEMAKER-HEADER ... dZViewItem

be good to compare it to what pacemaker charge if anyone knows...

 

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 Post subject: Re: P/m 4480 Q's
Posted: Thu May 15, 2008 7:45 pm 
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Joesau wrote:
Im looking for new extractors lately, the 4480 in particular, i have found a second hand set and from the pictures of them the pacemaker badge is on the 4th prim pipe, been looking at forum members pics of them with the badge on the 5th primary pipe,

Just wondering was there a design change? i have been told that they used to have 38mm primaries then they changed to 41mm is that right?
im getting the guy to measure em for me.



there was a change in pipe size.
but i'd suspect it was mor for the wank/image factor.
people think biger is better. so how come the competion header has smaller pipes. simple make the pipes bigger to sell to the idiots.

 

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 Post subject: Re: P/m 4480 Q's
Posted: Thu May 15, 2008 9:27 pm 
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tickford_6 wrote:
Joesau wrote:
Im looking for new extractors lately, the 4480 in particular, i have found a second hand set and from the pictures of them the pacemaker badge is on the 4th prim pipe, been looking at forum members pics of them with the badge on the 5th primary pipe,

Just wondering was there a design change? i have been told that they used to have 38mm primaries then they changed to 41mm is that right?
im getting the guy to measure em for me.



there was a change in pipe size.
but i'd suspect it was mor for the wank/image factor.
people think biger is better. so how come the competion header has smaller pipes. simple make the pipes bigger to sell to the idiots.


Totally Agree!

I actually would prefer a set of the old comps with 38mm primaries, alot better for street driving. How often are you bouncing off the rev limiter. Small primaries equal faster exhaust gas velocity, also better power in the low rev range.

Cheers...

 

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Posted: Thu May 15, 2008 10:02 pm 
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More Grunt wrote:
is $430 plus $40 postage a good price for 4480's?

brand new.

does anyone know how much pacemaker sell them for off the shelf?


theyre 4499's that you posted
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Posted: Fri May 16, 2008 1:14 am 
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FordFairmont wrote:
More Grunt wrote:
is $430 plus $40 postage a good price for 4480's?

brand new.

does anyone know how much pacemaker sell them for off the shelf?


theyre 4499's that you posted


dammit sorry had several windows open at the time and copied the wrong link...

heres the right one with the properly adjusted price tag...

http://cgi.ebay.com.au/PACEMAKER-HEADER ... m153.l1262

488 + 39 postage... $527 to get the unit alone... is that ok, or would be better of going to exhaust shop?

 

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Posted: Fri May 16, 2008 5:51 pm 
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yeh i have lost a bit down low, mine have the 41mm primaries but at least they match the head outlets of my car 41mm, so they are a good extractor,
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Posted: Fri May 16, 2008 5:58 pm 
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i like my newer 4480's considering, 4.11's 3500-6500 cam, it spends alot of time up in the high revs

 

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Posted: Fri May 16, 2008 5:58 pm 
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More Grunt wrote:
FordFairmont wrote:
More Grunt wrote:
is $430 plus $40 postage a good price for 4480's?

brand new.

does anyone know how much pacemaker sell them for off the shelf?


theyre 4499's that you posted


dammit sorry had several windows open at the time and copied the wrong link...

heres the right one with the properly adjusted price tag...

http://cgi.ebay.com.au/PACEMAKER-HEADER ... m153.l1262

488 + 39 postage... $527 to get the unit alone... is that ok, or would be better of going to exhaust shop?


I reckon you can find a better deal. If I remember correctly I paid maybe $400 for a new set with new bolds, gasket and a spare flange to match.

phong =P~

 

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Posted: Fri May 16, 2008 8:34 pm 
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Joesau wrote:
yeh i have lost a bit down low, mine have the 41mm primaries but at least they match the head outlets of my car 41mm, so they are a good extractor,


who ever made the exhaust ports the same size as the exhaust valve, needs to be shot. or at least his hands cut off so he can't ruin any more heads

 

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Posted: Sat May 17, 2008 12:02 am 
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tickford_6 wrote:
Joesau wrote:
yeh i have lost a bit down low, mine have the 41mm primaries but at least they match the head outlets of my car 41mm, so they are a good extractor,


who ever made the exhaust ports the same size as the exhaust valve, needs to be shot. or at least his hands cut off so he can't ruin any more heads


wanna elaborate on that for those of us who have not worked on heads before?

 

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Posted: Sat May 17, 2008 12:18 am 
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More Grunt wrote:
tickford_6 wrote:
Joesau wrote:
yeh i have lost a bit down low, mine have the 41mm primaries but at least they match the head outlets of my car 41mm, so they are a good extractor,


who ever made the exhaust ports the same size as the exhaust valve, needs to be shot. or at least his hands cut off so he can't ruin any more heads


wanna elaborate on that for those of us who have not worked on heads before?


I believe it has something to do with pressure. More exhaust flow outwards but not enough back pressure for low down torque, unless you have your foot on the floor all the time or forced induction. Slower exhaust coming out or something.

Think of it this way...when you blow your nose, it is easier when you squeeze one side and blow one then the other, where as if you have both your noses open the blowing is much slower and less effective.

Thus if you want more exhaust flow coming out of your car, slightly smaller primaries would be a good thing...

In saying that, I could also be talking s**t.

phong =P~

EDIT: My wording isn't also correct....so maybe someone else will elaborate or link us to a thread somewhere in FM which I am sure someone else had started previously.

 

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