Martin Libhart wrote:
>
> I caught a recent thread regarding spark plugs. Curious to know what
> plugs are working best in a carb. model TR6. I've been having trouble
> with cold-fouling - dry, black sooty plugs, not oily. PO had a Bosch
> plug in the car. I've changed to Champion Premium Gold plugs, equiv. to
> the old N9Y plug, but still having problems. Anyone running a hotter
> plug with good results? If so, what?
>
> Martin Libhart
> 1972 TR6 (driver)
> 1970 Spitfire Mk.3 (under restoration)
Martin:
Most of the racers here use NGKs. For high speed running(High RPMs) use
BP7ESs. Normal use try BP6ES. I use BP5ESs which is a slightly hotter
plug and one that I find makes for a smoother idle. Over the years I've
tried everything from the original Champions to Splitfires and found the
regular NGKs the best, and the cheapest by the way. At around $1.05
apiece here you can replace them every 12000 miles at little expense.
Bob
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