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Registered
Join Date: Feb 2006
Location: Castle Rock, Colorado
Posts: 765
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Spark plug choices
The car is a stock 1987 924S in rehab. It runs but has a mild flat spot in the middle RPM range. I have not replaced the plugs yet because they look good. There appears to be several choices (both standard and high performance) for this engine. The main difference appears to be heat ranges. Historically, I've had the best results with NGK in all my cars but if there is a consensus plug that has the best track record for this engine, I'm all ears. Thanks.
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1982 911SC
1987 924S
Last edited by rbuswell; 09-06-2019 at 05:14 AM..
Reason: More content
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