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Alan L Alan L is offline
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Join Date: Apr 2006
Location: New Zealand
Posts: 3,187
Wow, nice work. My fuel piston works fine. The old one had a chip on the metering edge - which drove me nuts trying to tune the injectors - depended where the chip was - which slit it was/was not over as to what fuel you got. Spent HOURS tracking that down. It was also scored along the length as well which never helped.
If I did get another head I would probably go for the Aluminium one at this time. But I can't think what would be wrong with it. The fuel flows are excellent and stable/repeatable. I will do as Jim suggests and pull some hot plugs after next track run. Ouch. (#s 1&2).
How far out do you think the cam timing would have to be? I do recall not being quite happy with it after bolting the engine back together and pulling one cam to retime it by one hole. I'm reasonably sure they are good. But it is worth a look. I have a lot of gear off the engine at the moment - so I can get to inlet valves reasonably well. (Of course it does not have to be 1 or 4. Any Inlet valve will do). Worth checking.
Regards
Alan
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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 11-16-2011, 07:00 PM
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