Ferrari Mailing List: Re: Fw: spark plugs 1981 308 GTSi

[David (david]

Michael,

I personally like NGK, but there's nothing wrong with Bosch.

There are many websites that offer cross reference lists between the various
brands. See where the Bosch plugs fit in terms of heat range and as long as
they match what you have used previously, you'll be good to go.

If the book says the gap is up to .027 and you measure them out of the box
at .028 then that's pretty darn close. You'd be hard pressed to get them as
evenly matched as they are now, and all for the sake of one thou - it ain't
worth it IMHO.

Remember also that plug technology has advanced a wee bit since 1981, so
pretty much anything will be better than the original spec Champions. As a
reference point, I run the absolute cheapest NGKs in the Mondial t and it
runs just as good as it did when it had the $15 a piece iridium ones. I only
changed them after removing each plug one by one to check color and I
dropped one. $10 for a complete set seemed better than waiting for the
iridiums. Never bothered changing them back...

Dave

-----Original Message-----
From: Michel Savard [mailto:mysavard [at] videotron.ca] 
Sent: Tuesday, March 02, 2010 10:28 AM
To: David
Cc: The FerrariList
Subject: [Ferrari] Fw: spark plugs 1981 308 GTSi


----- Original Message ----- 
From: Michel Savard 
To: ferrari 
Sent: Tuesday, March 02, 2010 11:39 AM
Subject: spark plugs 1981 308 GTSi


For many years I used NGK BP5ES and then NGK BPR7ES. The plug gap was put
between .024" to .027" as the manual says.

Today, the auto part store gave me BOSCH  SUPER PLUS 7992 WR 5 DC+. They
couldn't find what I wanted.
Good choice or not ?
Next question: The gap is officially (on the box) set at .032", but it's
more like .028".
What should I do ?

Thank you!
Michael Savard
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