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Spark Plugs for 1979 3.0 8.5 Compression?

A lot has changed over the years. Can someone point me to a good spark plug for a car that will be tracked and autocrossed? Thanks

NGK (1233) BPR5EY V-Power Spark Plug?

XP XTREME PERFORMANCE? spark plug?

NGK (6597) BPR5EIX Iridium IX Spark Plug?

Thanks for the help!
Old 10-16-2018, 08:44 AM
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COPPER PLUGS!!!
bosch supers or NGK copper. start with a heat range of 5 (for bosch).

left off the bosch part.
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86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:

Last edited by T77911S; 10-17-2018 at 04:33 AM..
Old 10-16-2018, 10:16 AM
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Thanks,

There are so many options. I am certain I am overthinking this.
Old 10-16-2018, 11:05 AM
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A Bosch 5 is different from a NGK 5.

file:///C:/Users/Administrator/Desktop/Spark%20Plug%20Cross%20Reference%20HEAT%20RANGE%20 CHART.html
Old 10-16-2018, 11:40 AM
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I just bought these. I am finding the choices are many.

NGK 7832 Spark Plug
Old 10-16-2018, 02:49 PM
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7832 crosses to a bp5es or bosch W8D.

that's a pretty hot plug to start with.
__________________
86 930 42kmiles [__] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
05 BMW 330CI 130K:: [__] RUNNING: [__] NOT RUNNING:
08 VOLVO V70 190K:: [__] RUNNING: [__] NOT RUNNING:
90 B2200[__] RUNNING:[] NOT RUNNING:__2000 MER E320 WAGON [] WRECKED:[]RUNNING:
Old 10-17-2018, 04:37 AM
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I just realized that. The numbers are confusing. It is a plug that EBS sells for these engines. Also, the 78-79 can run with a hotter plug.

I think I need a 7 rating for an EKG.

Last edited by jamesjedi; 10-17-2018 at 05:38 AM..
Old 10-17-2018, 05:20 AM
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Thanks for the help.

I will be returning the “hot” plugs and have ordered NGK-BR7EIX-(6664). This would be equivilant to Bosch 5.
Old 10-19-2018, 10:59 AM
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