|04-20-2013, 08:38 AM||#1|
Joined: Jun 2004
Location: Scottsdale AZ..
83 R100 Spark plugs
What would be the best spark plugs for South west.. AZ
BMWMOA 82741 ABC 8418
75 R90S ,83 R100 nake (Baron) , 88 R100GS ,94 R1100RS (Aragorn) 2k 1150GS DMC sidecar ,05 K1200S (Gandalf)Deposit made on a
2014 R NINE T
|04-20-2013, 02:19 PM||#2|
Brevis illi vita est
Joined: Jun 2010
Doesn't matter where you are, the temperature in that cylinder is very close to the same. Gas and air burn at X temperature and X is a constant. The whole motor might run a lot hotter in a hot climate, less temp,. differential to the air to provide cooling.
A hotter plug literally runs hotter (center electrode). it might be desirable to burn off oil fouling in a very worn engine. I've used a hotter plug in the left lower plug of a dual plug setup because of gas and oil fouling. A cooler plug literally runs cooler and might be desirable when running bad gas and having pre-ignition problems.
You might also go hotter or cooler with various engine modifications.
The temperature of the plug is determined by the construction. The hotter plug has a longer center electrode (going back into the plug body) making a longer path for heat to get to the head and be dissipated. The colder plug has the reverse and it's center electrode cools more and more quickly.
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