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Registered
Join Date: Apr 2004
Location: Westchester County NY
Posts: 475
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Camshaft upgrade on a 1987 3.2L
Hi all by searching threads here I have seen that a 964 or 20/21 are the cams of choice for an 87 3.2L engine upgrade. how about 993 cams? would these be the same as a 964 or more aggressive, would all these cam choices still keep me within emissions. I tried a search but could not get any info specific to a 993 upgrade, Thanks, John
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09-24-2004, 04:49 PM
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Join Date: Jan 2000
Posts: 6,950
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I went with 20/21 grind on my 3.4. It is slightly more aggressive then the 964. As far as other grinds, try Steve at Rennsport.com for some good advice.
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09-24-2004, 06:10 PM
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Join Date: Feb 2004
Location: California
Posts: 926
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The 993 has hydraulic rocker arms. You would need cam carriers etc. to upgrade, and still only have a 964 style cam.
964 passes emissions in CA
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John Dougherty Dougherty Racing Cams |
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09-24-2004, 07:45 PM
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Join Date: Apr 2004
Location: Westchester County NY
Posts: 475
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Thanks Camgrinder, you saved me on spending money needlessly. I appreciate your expert advice, Johnny O
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09-24-2004, 07:50 PM
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