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Movin6 |
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#1
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Member ![]() ![]() Group: Members Posts: 76 Joined: 27-July 09 From: New England Member No.: 10,615 Region Association: North East States ![]() |
Time for a tune up / valve adjustment, wondering what spark plugs everyone is using these days.
My 70 914-6 was upgraded to 911S specs (2.2 or 2.4 liter, sheesh bad memory...) Stock ignition, still has Marelli Distributor. Currently running NGK B7EV, in the past had Bosch W225 T35. Not wanting to start an 'Oil discussion', LOL, but curious if there have been updates / changes. |
Mark Henry |
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#2
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that's what I do! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada ![]() |
Really you want to take them out and see how they're burning. Use a plug chart if a nice tan you want to stick with the same plug. My 3.0 I'm using NGK BPR5ES but it's twinplug 10.1:1 with MSD I only use NGK or Bosch copper cores, T4 and /6, Beru may be okay just never tried them. |
johnhora |
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 867 Joined: 7-January 03 From: Derby City KY Member No.: 107 Region Association: None ![]() ![]() |
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Mark Henry |
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#4
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that's what I do! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada ![]() |
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john77 |
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#5
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Senior Member ![]() ![]() ![]() Group: Members Posts: 621 Joined: 21-February 14 From: Los Angeles Member No.: 17,027 Region Association: Southern California ![]() ![]() |
When i tried to get new plugs late last year I found out NGK have actually discontinued BP6ES 7333. Their site recommends BPR6ES 7131 as a direct replacement, but I was told the resistor in them didn't play well with the 123 distributor so I ended up getting BP5ES 7832 instead.
ngk.com/ngk-7333-bp6es-nickel-spark-plug I've been running NGK BP6ES in stock 2.0L 6cyl with stock Bosch Dist and CDI Runs fine no problems. This is from the NGK site. ![]() |
slivel |
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#6
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Old car....... older driver ![]() ![]() ![]() Group: Members Posts: 510 Joined: 10-July 04 From: San Diego Member No.: 2,332 Region Association: Southern California ![]() |
When i tried to get new plugs late last year I found out NGK have actually discontinued BP6ES 7333. Their site recommends BPR6ES 7131 as a direct replacement, but I was told the resistor in them didn't play well with the 123 distributor so I ended up getting BP5ES 7832 instead. ngk.com/ngk-7333-bp6es-nickel-spark-plug I've been running NGK BP6ES in stock 2.0L 6cyl with stock Bosch Dist and CDI Runs fine no problems. This is from the NGK site. ![]() For racing in my 3.4 L twin plug I used these: NGK BPR7ES (5534 large 13/16 base), or BKR7E (4644 small 5/8 base) I mention this because I researched small base plugs with all other parameters equivalent to the large base ones. It always was difficult servicing the lower plugs if I didn't remove the exhaust manifolds due to clearance issues . The small base plugs gave me just enough extra room that the job was easier. One or two heat ranges hotter would be proper for a street engine. I used small base plugs when I had a 944 Turbo for the same reason. Try the small base equivalent plugs in your preferred brand, I think you'll like the change. |
mlindner |
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#7
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,530 Joined: 11-November 11 From: Merrimac, WI Member No.: 13,770 Region Association: Upper MidWest ![]() ![]() |
movin6, I also have a 2.2E with S pistons and had the same question this last year. I have a bosch S distributer, MSD and 40 PMO, NGK BR6's recommend but if still running rich a hotter plug is the NGK BPR5's. If your NGK 7's look good I would stay with that....only use a hotter plug if you must. Best, Mark
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Movin6 |
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#8
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Member ![]() ![]() Group: Members Posts: 76 Joined: 27-July 09 From: New England Member No.: 10,615 Region Association: North East States ![]() |
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infraredcalvin |
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#9
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Distracted Member ![]() ![]() ![]() Group: Members Posts: 1,528 Joined: 25-August 08 From: Ladera Ranch, CA Member No.: 9,463 Region Association: Southern California ![]() ![]() |
Really you want to take them out and see how they're burning. Use a plug chart if a nice tan you want to stick with the same plug. My 3.0 I'm using NGK BPR5ES but it's twinplug 10.1:1 with MSD I only use NGK or Bosch copper cores, T4 and /6, Beru may be okay just never tried them. Those seem awfully hot for a twinplug. Are you having good success? I just ordered 8s my track car... mainly cause I can’t get 7s, they’re on back order, so I thought I’d go a hair cooler... |
ClayPerrine |
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#10
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Life's been good to me so far..... ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 15,523 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille ![]() ![]() |
I use BCPR-6ES plugs in the 4L engine. They work great.
Clay |
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