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NGK Plugs



SAAB turbos use the BP6 ES for the 900 turbo and BCP 7 ES for the 16 valve higher compression turbo two litre engine. The SAAB engine is square (equal bore and stroke) unlike earlier Alfa engines. Is the later Alfa turbo still a long stroke or is it square or oversquare now? Anyway, a 6 heat range NGK plug might be a tad hot for a high pressure turbo.

I know nothing about the actual spec for the Alfa engine but one would think the plug requirement would be similar to the same sized SAAB turbo engine.

Cheers


Michael Smith
White 1991 164L
Original owner
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