Betty (so named as plate starts BTE) is currently running Champion N11YC plugs that are due to be replaced. I note the parts catalogue specifies N9Y plugs.
I gather from Uncle Google that for Champion plugs the higher the number, the hotter the plugs.
Any experiences using either of these plugs?
Spark plugs
Spark plugs
1972 Toledo 4 door "Betty"
Re: Spark plugs
Which engine is in your Dolly?
Mike
(1969 MGB GTV8, 1977 Dolomite 1850HL, 1971 MGB roadster now all three on the road)
(1969 MGB GTV8, 1977 Dolomite 1850HL, 1971 MGB roadster now all three on the road)
Re: Spark plugs
Then you need NGK BP6ES. Champions were never such champions..
Jeroen
Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com
Re: Spark plugs
I must agree with Jeroen, Champion plugs are not the best in my opinion. NGK for me everytime.
Mike
(1969 MGB GTV8, 1977 Dolomite 1850HL, 1971 MGB roadster now all three on the road)
(1969 MGB GTV8, 1977 Dolomite 1850HL, 1971 MGB roadster now all three on the road)
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Mad Mart
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Re: Spark plugs
Ditto.
Champion
Champion
Sprintless for the first time in 35+ years. 
... Still Sprintless.
Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S
... Still Sprintless.Engines, Gearboxes, Overdrives etc. rebuilt. PM me.
2012 Porsche Boxster 981 S