onefstcat Posted May 20, 2010 Report Share Posted May 20, 2010 Are BR7ES plugs to hot for my motor only thing done bored .80 over? Quote Link to comment Share on other sites More sharing options...
methyman Posted May 21, 2010 Report Share Posted May 21, 2010 YES. Run the BR8ES or BR9ES. BR7ES could lead to a hole in the top of the piston. Quote Link to comment Share on other sites More sharing options...
onefstcat Posted May 21, 2010 Author Report Share Posted May 21, 2010 YES. Run the BR8ES or BR9ES. BR7ES could lead to a hole in the top of the piston. Quote Link to comment Share on other sites More sharing options...
onefstcat Posted May 21, 2010 Author Report Share Posted May 21, 2010 Damn it street track and trail told me to run them. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted May 21, 2010 Report Share Posted May 21, 2010 If you need to run 7's to keep your banshee from fouling plugs then it is not jetted right. Run 8's for gasoline or 9's for Methanol. Quote Link to comment Share on other sites More sharing options...
jack350 Posted May 21, 2010 Report Share Posted May 21, 2010 If you need to run 7's to keep your banshee from fouling plugs then it is not jetted right. Run 8's for gasoline or 9's for Methanol. if i wanna run 9's even though im on pump gas would i get any performance or even a cleaner burn outta it?? Quote Link to comment Share on other sites More sharing options...
bansheesandrider Posted May 21, 2010 Report Share Posted May 21, 2010 if i wanna run 9's even though im on pump gas would i get any performance or even a cleaner burn outta it?? Stick with 8s for any kind of gasoline. If you have to go hotter or colder, there is something else wrong that you are trying to cover up or fix incorrectly, as long as you are running gasoline. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted May 21, 2010 Report Share Posted May 21, 2010 if i wanna run 9's even though im on pump gas would i get any performance or even a cleaner burn outta it?? Not really. You dont get any performance out of chaging heat ranges. 9's are colder so, 7's are hoter. The temp rating is just that. It is the temperature at wich the spark plug operates at. I has nothing to do with how hot or cold the fuel burns, or having a Hotter larger spark. If it is to cold it will not reach the temp required to keep it clean. If it is to hot it can cause preignition and detonation wich will make your engine short lived. Everything you need to know about heat ranges. http://www.sparkplugs.com/charglossary.asp?kw=Heat+range Everything else you could possibly want to know about spark plugs. http://www.sparkplugs.com/sparkplug411.asp?mfid=0 Quote Link to comment Share on other sites More sharing options...
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