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Registered
Join Date: Mar 2003
Location: NORTH CAROLINA
Posts: 2,138
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Bosch or NGK Spark Plugs? Chime in with your opinion.
My 93 911 has twin plug heads and uses a 3 electrode spark plug. Which is the better plug, the Bosch FR5DTC or the NGK BCPR7ET. I've used both. Any other good alternatives as well? Thanks Bill
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10-08-2009, 03:43 PM
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Join Date: Jan 2006
Location: Santa Barbara, CA
Posts: 2,307
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NGK's way superior. Bosch seems to suffer from quality control problems in my experience.
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jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
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10-08-2009, 04:28 PM
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NGK. I use them in everything. I have always had the best performance in Porsches with them.
Ed
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Basically, I'm One Giant Train Wreck. http://community.webshots.com/user/evill914 |
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10-08-2009, 04:40 PM
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Join Date: Jan 2004
Location: Docking Bay 94
Posts: 7,036
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NGK. When I owned a Honda years ago they were original equipment for that car, install and removal always seemed easier than other plugs. When I got the 911, I stuck with 'em.
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Kurt |
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10-08-2009, 05:15 PM
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Make My Day
Join Date: May 2003
Location: Northern NY
Posts: 1,305
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E3 DiamondFIRE
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74 911S Targa ROW Building Designer/Business Owner |
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10-08-2009, 05:44 PM
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Manassas, VA
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Moneymanager,
Can you be more specific with regard to "quality control problems..." Do you mean they foul easier/sooner, they are not made correctly, the materials are not adequate, or the variation from plug to plug is excessive? Personally, I like the platinum Bosch for my 964 turbo. If NGK made a platinum plug, I might try it. I used NGK BP7ES plugs in my racing motorcycles and thet worked great. Mark
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1991 964 Polar Silver Metallic Turbo Coupe |
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10-08-2009, 06:15 PM
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Join Date: Dec 2008
Location: San Antonio, Texas
Posts: 3,591
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ngk or nippondenso are the best in my opinion
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1973 911S (since new) RS MFI specs 1991 C2 Turbo |
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10-08-2009, 07:03 PM
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Almost Banned Once
Join Date: Feb 2009
Location: Adelaide South Australia
Posts: 38,517
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Have always used NGK... Never a problem.
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- Peter |
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10-08-2009, 07:23 PM
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Join Date: Jun 2007
Location: Lake Oswego, OR
Posts: 6,103
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I am a huge NGK fan. Back when I had a 65 MGB, the only plug that would run correctly in the crummy air fuel mixture presented was NGK. Since then, they have been my go-to. Cheap. Effective. Don't look elsewhere. Just bought some from Wayne last week!
Just my opinion. Larry |
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10-08-2009, 09:05 PM
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Run ngk in my viggen, would not run anything else; run bosch in the porsche as the stated ngk plug for my car would foul. Just put a hotter ngk in porsche in hopes that this will fix until I install the right cams for the pump that I have.
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72 911 Although it is done at the moment, it will never be finished. |
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10-09-2009, 03:44 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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I've used both NGK and Bosch plugs in my cars for 37years and never had a problem w/ either.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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10-09-2009, 11:59 AM
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N-Gruppe doesn't exist
Join Date: Jun 2005
Location: *%@#ing GPS, where am I? Oh wait I see the Space Needle.
Posts: 4,394
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ngk bp7es
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Ted '70 911T 3.0L "SKIPPY" R-Gruppe #477 '73 914 2.0L SOLD bye bye "lil SMOKEY"  "Silence is Golden, but duct tape is SILVER.” other flat fours:'77 VWBus 2.0L & 2002 ImprezaTS 2.5L |
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10-09-2009, 02:02 PM
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Join Date: Jul 2009
Posts: 285
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the most important thing to remember is stick with one of the two, versus any other brand.
they are essentially the same. I have never heard of any quality control problems with Bosch, FWIW> |
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10-09-2009, 02:08 PM
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1991 Porsche 964 Turbo 3.3L
Tobluforu
