Sethro84 0 #1 Posted June 30, 2009 Ok, this kinda goes along with the premium fuel topic... So I've heard that certain spark plugs tend to spark hotter than others; i.e. Autolight. So, if true, using a "hotter" spark plug would create a fuller burn of the fuel in the cylinder which leads to better power! So what I'm asking is have any of you heard the same thing? Or even proven it to yourself? Thoughts? Comments? Criticisms? -Seth Share this post Link to post Share on other sites
Duvall 0 #2 Posted June 30, 2009 Specific spark plugs can not produce a hotter spark than any other plug. Heat or intensity of the spark is determined by the type of ignition and coil. Some plugs can concentrate the spark in a specific area on the electrode to make a more consistent spark. Spark plugs do have different heat ranges. This has to do with how fast the plug dissipates heat from the combustion camber for purposes to prevent fouling. Here is some good info on spark plugs. http://www.ngksparkplugs.com/techinfo/spar...1000&country=US Share this post Link to post Share on other sites
stevebo-(Moderator) 8,330 #3 Posted July 1, 2009 Great explanation Duvall. A good example is on my old outboard 2 stroke motors that burn oil. When the plug fowls a little, I usually go 1 heat range hotter which helps with the starting and does not foul the plug. The old outboards are like 16 to 1 fuel oil mix. The opposite for my old car. When I switched over to electronic ignition, I went with a lower heat range plug because the ignition is hotter. Share this post Link to post Share on other sites
big mike 13 #4 Posted July 1, 2009 One issue that gets debated is brand.I have NEVER had a bad Champion but there are guys that swear all Champions are junk.I have tired Autolites and have not seen any difference. Share this post Link to post Share on other sites
Don1977 604 #5 Posted July 1, 2009 One issue that gets debated is brand.I have NEVER had a bad Champion but there are guys that swear all Champions are junk.I have tired Autolites and have not seen any difference. I would not call them junk, but I have had a few things that they didn't last very long in so I don't buy them unless I can't get some else. I like Bosch platinums if I can find them that fit. I had an engine that would foul out Champions every couple of months and the Bosch platinums would last a year. Share this post Link to post Share on other sites
Stress Test Pullin 0 #6 Posted July 8, 2009 i personally do not like champion , but thats just me, i prefer NGK plugs, they seem to be a hotter plug and ive never had one fould out on me, esp on my pulling engines which i use them the most in if u dnt like of cant get NGK plugs, i would get the autolite ones, they seem to work quite well too Share this post Link to post Share on other sites
GlenPettit 1,716 #7 Posted July 9, 2009 On any Spark Plug, be sure to make the correct gap on it yourself, a good set of gap feeler gauges is very important, (not the little loops kind, but the flat plate style is best), 'out-of-the-box' is rarely correct. Share this post Link to post Share on other sites
