Author Topic: air intake manifold Porting  (Read 1856 times)

Offline pickles

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air intake manifold Porting
« on: 22 January 2013, 17:37 »
is it worth doing this while its off?
weirdos on here i tell you ;)
mk4 golf 1.8T, AGU, CAI, Forge007p DV,TIP,Decat, Bilsteins with Koni springs dropped 40mm
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Offline Prawny

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Re: air intake manifold Porting
« Reply #1 on: 22 January 2013, 18:29 »
what exactly are you going to port mate?

You can't port the opening from the TB any wider, it's already the right size for the TB, any larger will result in a sudden step. You can't get inside it to port the mouths of the runners, and if you port the bottom it'll be bigger than the head and cause an obstruction.

Can't see any gains to be had that easily, I'd not bother if I were you :)

Offline pickles

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Re: air intake manifold Port Polishing
« Reply #2 on: 22 January 2013, 19:13 »
edited to a more suitable title. seen a few vids on youtube ,just wana get my new dremel out n use it on something useful lol
« Last Edit: 22 January 2013, 19:19 by pickles »
weirdos on here i tell you ;)
mk4 golf 1.8T, AGU, CAI, Forge007p DV,TIP,Decat, Bilsteins with Koni springs dropped 40mm
Mapped

Nearly S3 time  :)

Offline rockmonkey69

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Re: air intake manifold Porting
« Reply #3 on: 22 January 2013, 19:24 »
As prawny said there's not much you can do and as he suggests; more often than not, the end result is a design with worse flow than originally.
If you want to port match the intake manifold to the head it would require some machining to the inlet on the head itself which requires the head to be removed while working on because of the all the swarf. In terms of real world gains it is very difficult to notice.

Offline rio_gti

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Re: air intake manifold Porting
« Reply #4 on: 22 January 2013, 19:25 »
use it on the throttle body, little bits get in the little corners!!


2000 GTI 1.8t ARZ, S2000 filter, DSG intake, Forge 007 dv, Catch can, R-tech custom remap, 3" Supersize Silicone TIP, Powerflex dog bone, 'The Beast' FMIC, Ultimate delete, LCR fuel pump, 3" Turbo back, K03 hybrid, Ported Manifold, S3 injectors, 80mm maf = 280bhp 270lbft :evil:

Offline pickles

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Re: air intake manifold Porting
« Reply #5 on: 22 January 2013, 19:34 »
cheers guys, just the exhaust manifold thats worth doing then, itl be coming off shortly as well.
weirdos on here i tell you ;)
mk4 golf 1.8T, AGU, CAI, Forge007p DV,TIP,Decat, Bilsteins with Koni springs dropped 40mm
Mapped

Nearly S3 time  :)

Offline MPJ88

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Re: air intake manifold Porting
« Reply #6 on: 24 January 2013, 11:19 »
with FI theres not a lot of gain in porting intake, more sense to spend on exhaust mani.