are these all the same size?
04-16-2011, 08:33 AM
#4
RE: are these all the same size?
Heat ranges. An OS 8 is a medium-hot plug. An OS 6 is a hot plug, and an OS 10 is a cold plug.
You would choose based on nitro content, engine size, compression and whatever whim your engine is on at the time. Higher nitro needs a colder plug, bigger engines need colder plugs, higher compression necessitates a colder plug(This is to try to keep detonation at bay since the glow plug controls ignition advance).
You would choose based on nitro content, engine size, compression and whatever whim your engine is on at the time. Higher nitro needs a colder plug, bigger engines need colder plugs, higher compression necessitates a colder plug(This is to try to keep detonation at bay since the glow plug controls ignition advance).
04-16-2011, 09:00 AM
#7
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RE: are these all the same size?
yeah. i saw a #77 on my LHS website, and it said its for 20%-30% nitro content, and its a medium glow plug. its odonnell racing fuel so i guess that means thats odonnells' range.
