[Roadsters] Spark Plugs - General Info, Key Phrase

[John F Sandhoff]

> So if Roadsters often tend to run rich (at idle or otherwise due to
> mistuned carbs, needle profiles, etc) then the hotter plugs would be
> helpful to burn more of the fuel, keep the plugs from fouling and in the
> process, possibly a bit more power as a result? Sounds good to me.  

Roadsters can also tend to run lean due to worn throttle shafts etc.
Lean engines run hotter, thus potentially overheating a 'too hot'
plug which can lead to pre-ignition and/or melted plug tips.

It's a trade off. Always a trade off.

I run BP6ES. I'm happy.

-- John
     John F Sandhoff   sandhoff at csus.edu   Sacramento, CA