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Old 08-03-2008, 01:51 PM   #1
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Quote:
Originally Posted by tholyoak
Any header made for a 986 is too small for the 3.6. With the 3.6 Porsche enlarged the exhaust ports size significantly. Previously the 996 3.4 and 986 engines used the same size exhaust ports so using a set of 3.2S performance headers was a good solution. Not so with the 3.6 and 3.8 swaps. This obviously ignores the primary size and length, which are also wrong for a 3.6 on the 986 based headers.

-Todd
So what is the solution? Does anyone make a good header for the 3.6L to 3.8L in a 986?
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Old 08-03-2008, 04:03 PM   #2
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Im using a set of the Maxspeed/ Schnell type... they had the largest diameter I could find plus O2 bungs.... until I get a custom set made OR crack them they will have to do
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Old 08-03-2008, 05:11 PM   #3
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Top is gasket for a 3.6L engine, bottom is 986 Boxster/996 3.4 gasket. As you can see, you aren't doing your engine any favours by running 986 headers on a 3.6L engine.


-Todd
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Old 08-03-2008, 05:35 PM   #4
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Quote:
Originally Posted by tholyoak
Top is gasket for a 3.6L engine, bottom is 986 Boxster/996 3.4 gasket. As you can see, you aren't doing your engine any favours by running 986 headers on a 3.6L engine.


-Todd
What header are you using? Maxspeed has one with sports cats and one without that they state are a good fit for the 3.6L conversions.
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Old 08-03-2008, 05:43 PM   #5
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Seems like custum headers would be the expensive and right choice.
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Old 08-03-2008, 06:36 PM   #6
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Todd is running some top secret creation of his own

The Maxspeed catted headers look like they'd flow horribly to me, not to mention I can't imagine that they were designed for the larger ports of a 3.6.

Patrick
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Old 08-04-2008, 05:25 AM   #7
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Todd or whoever knows,

What is the width and height of the ports? trying to figure the size primary really needed for the 3.6L header. I have a tig welder and might have to do the custom thing. My 3.6L is coming UPS freight on Tuesday or Wednesday from Houston to Austin.

My 2002 3.2L engine will be for sell soon. 43K miles and runs perfect.

Jeff
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