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Join Date: Jul 2005
Location: Yorkshire UK
Posts: 1,097
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993 HE's Too Big for 3.0 MFI?
Im in the process of building a 3.0 MFI engine using large port SC heads. I have a set of 993 HE's with flipped flange for use on the early heads. Are these too large for use on a 3.0 MFI engine? I have heard that these engine benefit from some back pressure.
Regards Steve
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1972 911t RS Styled G50 conversion underway 1972t Resto Project - http://www.ddk-online.com/phpBB2/viewtopic.php?t=16695 |
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03-19-2007, 12:28 PM
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What sort of cams will you be running?
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John '69 911E "It's a poor craftsman who blames their tools" -- Unknown "Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman |
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03-19-2007, 01:45 PM
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FWIW the ID. of the 993 heat exchangers is identical to the SC RS and RSR 3.0 header which happens to be 42mm or 1 5/8th inches. If you have smoothed your heads out and are running some hot cams it should work out pretty well.
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74 911s neverending story. two feet and a jetta for now. |
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03-19-2007, 09:53 PM
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1969 Porsche 911E 2.0 E
1974 Porsche 911S 1978 3.0 SC
