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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
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Originally Posted by Helmsy View Post
Could it be a valve timing difference or maybe one bank of headers not sealed as well as the other? Just thinking out aloud..
Possibly valve timing - I wonder if it could do this?
I did spent some time trying to get these even - within a spigot hole But hard to allow for chain tension evenly I think. I wonder if a slight valve timing on over-run could do it?Was aiming for 0.8mm. I'm sure they are no more than 0.1 variance.
Not sure the header sealing would affect it - but would affect boost. Boost was not an issue.
83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
Old 11-15-2011, 10:26 PM
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