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verable lenght manafold 

 

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 Post subject: verable lenght manafold
Posted: Wed Feb 11, 2009 2:06 pm 
Oompa Loompa
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Ride: ef fairmont

Location: wellington
New Zealand

verable lenght manafold?? can any alterations be made to it to improve power just wondering

 

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1995 ef fairmont i6 4.0

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monro gt shocks at front, kyb heavy dutys in rear
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 Post subject: Re: verable lenght manafold
Posted: Wed Feb 11, 2009 2:28 pm 
Getting Side Ways
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Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

I'll assume your talking about the broad band manifold, and yes you can it's called extrude honing. It's only really worthwile doing if you've done everything else there is to do.

 

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86 ZL mint grandpa spec with premo sound and 150000km
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 Post subject: Re: verable lenght manafold
Posted: Wed Feb 11, 2009 5:31 pm 
Oompa Loompa
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Ride: ef fairmont

Location: wellington
New Zealand

so wouldent un pluging it do the same thing

 

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1995 ef fairmont i6 4.0

coby headers, high flow simota filter
monro gt shocks at front, kyb heavy dutys in rear
colby super low springs

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 Post subject: Re: verable lenght manafold
Posted: Wed Feb 11, 2009 5:48 pm 
Getting Side Ways
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you're joking?

 

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EVL098 wrote:
Cramping in the hand from having it on your Wang for an excessive period of time is a definate con.
Seriously do people google "f**k up modifications for Fords owned by Jews" and get linked straight to this site nowadays?

AU,factory fitted tickford kit/IRS, t5,Sports ryder/KYB: gone.

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 Post subject: Re: verable lenght manafold
Posted: Wed Feb 11, 2009 6:00 pm 
Smokin em up
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Ride: EF XR6

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if you are really keen. The worst spot on the manifold is just under the butterflies. there is about a 2-3 mm lip form the factory machining, where the tool has bored the casting for the butterflies to fit, you will see it. Smooth that out and get rid of all the cast marks inside and you will make it flow better. But that is something you would do to a VERY SERIOUS motor, there are a tone of things to do to the motor first. As for unplugging the vacume, that will loose you alot of low down torque, not a good idea! Put a mandrel bent air intake, quality filter, second intake into the air box (if you still want to use it) to start.

 

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EF XR6 Manual 271RWHP/199RWKW N/A using Stock manifold with dual plane runners still operating. EFI Hardware 6TBM to come mid year.

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 Post subject: Re: verable lenght manafold
Posted: Wed Feb 11, 2009 6:03 pm 
Getting Side Ways
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Age: 35

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Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

That will only stop the long runners from opening. Extrude honing smooths the casting dags and other rough surfaces that slow the flow of air.

 

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9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
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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 Post subject: Re: verable lenght manafold
Posted: Wed Feb 11, 2009 6:08 pm 
Smokin em up
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extrusions honing is exy though they quoted me $300 to do mine, and i have read to many articles where people have tested it,not on falcons though, and seen no improvement. there was a vn build up done a while back where they yested everything they did to the car at the 1/4 and they saw absolutely no difference. i have cleaned mine by hand and gone the HPC rout.

 

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EF XR6 Manual 271RWHP/199RWKW N/A using Stock manifold with dual plane runners still operating. EFI Hardware 6TBM to come mid year.

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 Post subject: Re: verable lenght manafold
Posted: Thu Feb 12, 2009 5:05 pm 
Getting Side Ways
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I remember someone on here saying they adjusted the butterflies so that they opened completely parallel to flow (as apparently they only partially open - I have never looked to see if this is the case).

Apparently this was better up top (but there was no results apart from bum-o-meter), until I test it I will be unconvinced though.

 

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EVL098 wrote:
Cramping in the hand from having it on your Wang for an excessive period of time is a definate con.
Seriously do people google "f**k up modifications for Fords owned by Jews" and get linked straight to this site nowadays?

AU,factory fitted tickford kit/IRS, t5,Sports ryder/KYB: gone.

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 Post subject: Re: verable lenght manafold
Posted: Thu Feb 12, 2009 5:12 pm 
Getting Side Ways
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Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

I wouldn't mind finding out who and how.

 

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9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
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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 Post subject: Re: verable lenght manafold
Posted: Thu Feb 12, 2009 9:46 pm 
Smokin em up
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QLD, Australia

I have my BBM in two pieces right here infront of me and the butterflies are sitting fully open. under vac they shut fully, so i am not sure what the go is with old mate messing with his. If anything mine open to far ever so slightly.

I would like to know the story behind that??????

 

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EF XR6 Manual 271RWHP/199RWKW N/A using Stock manifold with dual plane runners still operating. EFI Hardware 6TBM to come mid year.

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 Post subject: Re: verable lenght manafold
Posted: Thu Feb 12, 2009 9:58 pm 
Getting Side Ways
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are the butterly's at much of an angle (either before or after fully open) or parallel to airflow when fully open? Maybe if it goes too far past it was adjusted so it only opened the right amount?

meh, fingers me....I remember being pretty skeptical about it at the time, hence not paying attention to details :roll:

 

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EVL098 wrote:
Cramping in the hand from having it on your Wang for an excessive period of time is a definate con.
Seriously do people google "f**k up modifications for Fords owned by Jews" and get linked straight to this site nowadays?

AU,factory fitted tickford kit/IRS, t5,Sports ryder/KYB: gone.

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 Post subject: Re: verable lenght manafold
Posted: Thu Feb 12, 2009 10:46 pm 
Getting Side Ways
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Ride: BF F6 Tornado - #0077

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VIC, Australia

if intake is your thing, get a couple of 3 inch pipes and run them to the airbox then grab a 68mm throttle from the group buy

 

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 Post subject: Re: verable lenght manafold
Posted: Fri Feb 13, 2009 10:13 am 
Getting Side Ways
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Ride: BF MK11 XR 6 TURBO ZF 6spd

Power: 225 rwkw

Location: glenwood/sydney
NSW, Australia

extrude honing the intake would be one of the last mods you would do to chase power..

stick to a..
after market camshaft..
extractors..
2.5 inch cat back exhaust..
cold air intake..
3 inch mandrel bend intake to the throttlebody..

 

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 Post subject: Re: verable lenght manafold
Posted: Fri Feb 13, 2009 6:58 pm 
Smokin em up
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I totaly agree with you on that. it is an extreme length. I have a six throttle body set up for mine as well but i can't use it till i go a full aftermarket ecu. that won'tr be this year. i can't wait to see how responsive it will be with them on it, i know it will loose low down but i am not concerned about that and i can play with runner lengths and trumpet lengths to find the sweet spot.

 

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EF XR6 Manual 271RWHP/199RWKW N/A using Stock manifold with dual plane runners still operating. EFI Hardware 6TBM to come mid year.

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 Post subject: Re: verable lenght manafold
Posted: Fri Feb 13, 2009 11:20 pm 
Getting Side Ways
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Here's a ported BBM for sale. Look at the pics

http://cgi.ebay.com.au/Ported-Broad-Band-Manifold-BBM-EF-EL-AIR-INTAKE-FORD_W0QQitemZ220361093010QQcmdZViewItemQQptZAU_Car_Parts_Accessories?hash=item220361093010&_trksid=p3286.c0.m14&_trkparms=66%3A2|65%3A1|39%3A1|240%3A1318

 

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