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4.0L BA Exhaust & Intake 

 

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 Post subject: 4.0L BA Exhaust & Intake
Posted: Thu Jan 22, 2009 5:02 pm 
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i want to put a new full exhaust sytem, cam and air intake on my ba fairmont. I am lookin for a nice deep note from the exhaust and low down torque more so than high-end power. also want the lumpy idle. any suggestions on who to go through and wat i would need? also any experiences with these mods on power and fuel usage would b appreciated.
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Posted: Thu Jan 22, 2009 8:00 pm 
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I don't think I've heard a na ba/f with a lumpy idle. Not sure if you can do it with the twin cam.

 

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Posted: Thu Jan 22, 2009 9:23 pm 
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ebxr82nv wrote:
I don't think I've heard a na ba/f with a lumpy idle. Not sure if you can do it with the twin cam.
you can! crow cams!!!! watch the video... -lumpy NA i6..


http://cgi.ebay.com.au/CROW-CAMS-F6-FPV ... 240%3A1318

 

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Posted: Thu Jan 22, 2009 9:25 pm 
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sounds the best in the clip from the 26-32 second.. :wink:

 

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Posted: Fri Jan 23, 2009 1:29 am 
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look for headers with longer and narrower primaries (although no so narrow such that they overly choke it up top - doubtful with off the shelf items). I think pacemakers use 41mm primaries; I definately wouldn't go any bigger than this when looking for down low torque.

Also a lumpy idle is generally reminiscent of cams with big lift and longer duration, more suited to mid to high revs. If you are looking for low down torque then generally the idle wouldn't be as lumpy as what I assume you're looking for.

I'm not sure of what cams are offered for the DOHC head, but I was pretty sure I have seen people getting good results from getting a tune on the DOHC engines without touching cams.

 

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Posted: Sat Jan 24, 2009 1:55 am 
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bulma90 where in perth are you? theres a good exhaust place in kenwick called HansOn exhausts. used him for both my falcons. have a chat to them about what you want and what budget you have, they should be able to suggest something.
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 Post subject: Re: 4.0L BA Exhaust & Intake
Posted: Sat Jan 24, 2009 9:59 pm 
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hey im form baldivis. wat do u think of the pacemaker headers? I am lookin gettin that brand.
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 Post subject: Re: 4.0L BA Exhaust & Intake
Posted: Sun Jan 25, 2009 12:20 am 
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bulma90 wrote:
hey im form baldivis. wat do u think of the pacemaker headers? I am lookin gettin that brand.

ive had pacemakers... great build quality... fitted up perfectly....

 

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 Post subject: Re:
Posted: Sun Jan 25, 2009 2:35 pm 
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fordfreak ef wrote:
ebxr82nv wrote:
I don't think I've heard a na ba/f with a lumpy idle. Not sure if you can do it with the twin cam.
you can! crow cams!!!! watch the video... -lumpy NA i6..
i like the sound of that car. the cam sounds lyk xactly wat im lookin for. thnx

http://cgi.ebay.com.au/CROW-CAMS-F6-FPV ... 240%3A1318
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 Post subject: Re:
Posted: Sun Jan 25, 2009 5:56 pm 
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fordfreak ef wrote:
ebxr82nv wrote:
I don't think I've heard a na ba/f with a lumpy idle. Not sure if you can do it with the twin cam.
you can! crow cams!!!! watch the video... -lumpy NA i6..


http://cgi.ebay.com.au/CROW-CAMS-F6-FPV ... 240%3A1318


Hope they're better than the one I got.

 

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86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

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