Author Topic: 4 branch manifold for an abf mk2  (Read 3059 times)

Offline mk2addict

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4 branch manifold for an abf mk2
« on: 05 December 2011, 18:41 »
Will a 4 branch manifold for a mk3 golf fit my mk2

Offline Diamond Hell

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Re: 4 branch manifold for an abf mk2
« Reply #1 on: 05 December 2011, 23:22 »
Might do.

Might not.

Depends on the difference between the tunnel on a Golf3 vs a Golf2, which is different to a Golf2 Syncro... and I home-made my 4-branch..... I'm just no help here at all, but it's a bunch of tubes which can be heated and bent, or beaten if needed.  :grin:
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Offline The Mighty Elvi

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Re: 4 branch manifold for an abf mk2
« Reply #2 on: 06 December 2011, 00:00 »
Exhaust manifold, 4 branch in particular, is an exact science. In order to get the optimum air flow/pressure through to the exhaust many standard mainfolds are a compromise.


Offline Diamond Hell

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Re: 4 branch manifold for an abf mk2
« Reply #3 on: 06 December 2011, 10:00 »
Exhaust manifold, 4 branch in particular, is an exact science.

Correct, which is why the primaries on my homebrew are all approximately equal length and the secondaries are nice and long.  Done two similar, both work well.
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Offline tech1889

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Re: 4 branch manifold for an abf mk2
« Reply #4 on: 06 December 2011, 20:26 »
Exhaust manifold, 4 branch in particular, is an exact science.

Correct, which is why the primaries on my homebrew are all approximately equal length and the secondaries are nice and long.  Done two similar, both work well.

making a third ?
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Offline Diamond Hell

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Re: 4 branch manifold for an abf mk2
« Reply #5 on: 09 December 2011, 00:33 »
making a third ?

I'm not aware of any particular demand for a third... although I'm tempted to do one for the Corrado.
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Offline tech1889

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Re: 4 branch manifold for an abf mk2
« Reply #6 on: 09 December 2011, 10:14 »
making a third ?

I'm not aware of any particular demand for a third... although I'm tempted to do one for the Corrado.

i may be interested if you do make one  :smiley:
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Offline lemski

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Re: 4 branch manifold for an abf mk2
« Reply #7 on: 09 December 2011, 10:21 »
Dh would u make a 6branch?

Offline Diamond Hell

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Re: 4 branch manifold for an abf mk2
« Reply #8 on: 09 December 2011, 12:30 »
Here's the thing: the manifolds I've built are not pretty and they're gobbed together from old bits of VW downpipe.  That's not to say they don't work, but it's a very different proposition hacking something together from scrap for yourself, vs building something for someone else, for which you would have to ask proper money and get third party liability.

At the end of the day, to build one you need some 10mm plate, a good hole saw, a number of VW downpipes, a grinder with a few skinny cutting discs and a reasonable welder.

Ideally you would also need a second engine which you can bolt the plate to while you work up the manifold, which will stop the plate distorting when you weld stuff to it.

A six-branch would be a rather different proposition as the characteristics required would probably be quite different to a 4-branch.  I would need to speak to the technical department before starting on that.

Tip up at my place with the car, required materials and a couple of hundred quid and I could probably be persuaded, especially if you can make tea without thinking about putting your c0ck in it.
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Offline Sam

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Re: 4 branch manifold for an abf mk2
« Reply #9 on: 09 December 2011, 12:32 »
Here's the thing: the manifolds I've built are not pretty and they're gobbed together from old bits of VW downpipe.  That's not to say they don't work, but it's a very different proposition hacking something together from scrap for yourself, vs building something for someone else, for which you would have to ask proper money and get third party liability.

At the end of the day, to build one you need some 10mm plate, a good hole saw, a number of VW downpipes, a grinder with a few skinny cutting discs and a reasonable welder.

Ideally you would also need a second engine which you can bolt the plate to while you work up the manifold, which will stop the plate distorting when you weld stuff to it.

A six-branch would be a rather different proposition as the characteristics required would probably be quite different to a 4-branch.  I would need to speak to the technical department before starting on that.

Tip up at my place with the car, required materials and a couple of hundred quid and I could probably be persuaded, especially if you can make tea without thinking about putting your c0ck in it.

 :laugh: :lipsrsealed:


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