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broadband manifold, Custom air intake? 

 

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 Post subject: broadband manifold, Custom air intake?
Posted: Thu Dec 07, 2006 4:56 pm 
Oompa Loompa
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Ride: El Futura

Location: Langwarrin
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Hay all, this is my first post, i normaly just read and get some info, but i have a question and hoping someone can help..
I have a el falcon futura, and am planing to go to 2.5 inch exhaust and extractors.
I also want to make a custom air intake, Like http://www.darrendifilippo.com.au/intake_sys.html < this one.
But i was reading an aparently my car has a broadband manifold, something to do with restriction air flow at low rpm to boost torce, What will happen if i remove all of this and have a straight through 3 inch pipe, with a custom pod filter setup?
Thanks

 

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Posted: Thu Dec 07, 2006 5:11 pm 
Getting Side Ways
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Ride: BF MK11 XR 6 TURBO ZF 6spd

Power: 225 rwkw

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NSW, Australia

all it does is strighten and smooth out the air intake path for less restriction of air into the throttle body and intake manifold.. doesnt modify the BBM in any way..-just assists getting air into it better.. :wink:

Just make sure youre pod is at least sheilded or in the standard air box to keep it from sucking up hot air thus losing any advantage gainded..

 

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Posted: Thu Dec 07, 2006 5:15 pm 
Oompa Loompa
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Ride: El Futura

Location: Langwarrin
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Thanks mate, but juts wondering if i did make a custom one what hapend to the butterfly controlled by the ECU ....
This was written in>>> "Sticky: About the different ford 6’s and engine retrofit information"
: 4.0 engines fitted with broadband manifold. The ECU of these engines fires a vacuum solenoid to operate butterfly valves within the manifold to change the runner length from long to short at 3800rpm.

At low rpm, the short runners are closed forcing the intake air to go through the long runners. As it goes around the air pics up intertia which boosts low down torque. As RPM increases, the long path becomes a restriction so the short runners open up and air is allowed to take a short cut to the head.

Any help appretiated! :)

 

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Posted: Thu Dec 07, 2006 5:19 pm 
Getting Side Ways
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El Futura Boy wrote:
Thanks mate, but juts wondering if i did make a custom one what hapend to the butterfly controlled by the ECU ....


fordfreak ef wrote:
doesnt modify the BBM in any way..-just assists getting air into it better.. :wink:

 

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Posted: Thu Dec 07, 2006 5:24 pm 
Oompa Loompa
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Ride: El Futura

Location: Langwarrin
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Does anyone think that by makeing 3inch intake would increase power with pod filter? how much by?

 

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Posted: Thu Dec 07, 2006 5:26 pm 
Getting Side Ways
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El Futura Boy wrote:
Does anyone think that by makeing 3inch intake would increase power with pod filter? how much by?


I didnt notice any gains, dyno didnt show anything.

Ive seen some dyno's showing a 1-2rwkw gain though.

Pod filter = wank factor, but no more power than a good panel filter.

 

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