Date: Sun, 30 Nov 2003 15:41:58 +0000 (UTC)
From: "Tom" <saabtechnopsamnnect.com>
Subject: Re: NGK Spark Plug Question


"jon banquer" <myfirstandlastnamenopsamo.com> wrote in message news:bqcdt0$1vmfjp$1nopsam68325.news.uni-berlin.de... > > "Tom" <saabtechnopsamnnect.com> wrote in message > news:bqc9du$579$1nopsamules.btinternet.com... > > > > "jon banquer" <myfirstandlastnamenopsamo.com> wrote in message > > news:bqbh7d$1vnhrd$2nopsam68325.news.uni-berlin.de... > > > What is the difference between NGK BCP5EV, NGK BCP6EV and > > > NGK BCP7EV ? > > > > > > I have a 91 900S 16V non-turbo. The car currently has BCP6EV's. > > > How do I know which one is right ? The car is completely stock. > > > > > > jon> > > BCP 5EV = 900 16v non turbo without cat, > > BCP 6EV = 900 16v non turbo with cat, > > BCP 7EV = 900 16v Turbo. > > That is up to 1993, HTH Tom, Saabtech. > > > > > > I picked up a Bentley manual last night. It mentions using the > NGK BCP 5ES for 1989 - 1993 Normally-aspirated. What > is the difference between the NGK BCP 5ES and the NGK > BCP 6EV ? > > jon The ES range of spark plugs are copper cored, whereas the EV range sports a platinum tip, The EV range costs twice as much as the ES range but lasts twice as long, Saab recommend using the EV range but with a DI pack you have to use a resitor plug, eg BCPR 7ES on a Turbo as NGK do not make a resistor EV plug. Under normal use it does not matter if you use ES or EV it works out the same in the end. If you are in the states or elswhere with tighter emmission controls than the UK you may find that there is a different heat grade of plug depending on the configuration of the particular emission control of that engine, eg, twin lambda sensors bla bla bla. Dont allways trust bently and haynes manuals as being gospel, even the 2003 NGK catalogue has a couple of differences of opinion with SAAB as to what plug fits what car. Best place to look is your owners handbook or ring yer dealer............. T.

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