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spark plug advice please-ny11c
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Author:  deluxe67 [ Sat Sep 20, 2014 11:58 am ]
Post subject:  spark plug advice please-ny11c
I've bought some denso plugs that I was told are equivalent ny9's. However googling tells me they are more like ny11's.
Engine: 1293cc, 11:1 comp. ratio, extensive head work with 45 weber. Car is running a little rich. I'm in Indonesia. Can I safely use these plugs?
Thanks
Michael
Author:  drmini in aust [ Sat Sep 20, 2014 12:38 pm ]
Post subject:  Re: spark plug advice please-ny11c
N11YC Champion plug is equivalent to an NGK BP5ES.
Many people here run this hotter plug, BP (or was it Bosch Australia?) recommended going 1 heat range hotter than original when running unleaded fuels, particularly in traffic.
I put BP5ES in my 1412 stroker (it was 10.5:1 C/R) and they are still going fine.
My 1360 (11.0:1) is running BPR6ES because I had a new set.

I would run yours, but keep an eye on the electrodes; if they blister the plug is perhaps too hot.:wink:

[edit] For track work though you would want a colder plug.
Author:  deluxe67 [ Sat Sep 20, 2014 10:23 pm ]
Post subject:  Re: spark plug advice please-ny11c
Thanks for that Doc.
cheers
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