moshem74 Posted February 4, 2005 Share Posted February 4, 2005 hi what are the best spark plugs for leone from this list, this is the site that i order from, what are the best ones...? this is the link: http://www.sparkplugs.com/results_app.asp?productTypeID=1&AAIA=1268456 how much should be the center electroda ? is 0.044" is the best of lower? in mm....how much should be? meny people told me diferent sizes...from 11m to 7mm , what is the best for better performance? thank you all for your fast answer. moshe. Link to comment Share on other sites More sharing options...
85Sub4WD Posted February 4, 2005 Share Posted February 4, 2005 I know that NGK are the best, but I don't know exactally which ones. Your owner's manual with have the correct plug gap, unless you have a high-performance coil, in which case it would be slightly greater. I seem to remember people complaining about the irridium plugs, but I am not sure. (I know Bosch platnum has issues) Link to comment Share on other sites More sharing options...
Bill90Loyale Posted February 4, 2005 Share Posted February 4, 2005 NGK. Gap .044 Gap is .050 if you are using an aftermarket high-voltage coil. Link to comment Share on other sites More sharing options...
moshem74 Posted February 4, 2005 Author Share Posted February 4, 2005 NGK. Gap .044 Gap is .050 if you are using an aftermarket high-voltage coil. the bigger is better or what? i have an aftermarket coil + msd ignition stakker 7000pn(spark amplifire)...do i need to make the gap bigger? is it make any different? thank you all. mosh. Link to comment Share on other sites More sharing options...
Tom63050 Posted February 5, 2005 Share Posted February 5, 2005 the bigger is better or what?i have an aftermarket coil + msd ignition stakker 7000pn(spark amplifire)...do i need to make the gap bigger? is it make any different? More energy from the coil means you should gap your plugs bigger (about 15%). This will give a larger spark for more efficient combustion. Should improve gas mileage, maybe more power. Link to comment Share on other sites More sharing options...
moshem74 Posted February 5, 2005 Author Share Posted February 5, 2005 More energy from the coil means you should gap your plugs bigger (about 15%). This will give a larger spark for more efficient combustion. Should improve gas mileage, maybe more power. its not true....look here: if you want more performance...you should make the gap smaller: http://www.corollaperformance.com/TechInfo/sparkplugs.html have a nice day. Link to comment Share on other sites More sharing options...
85Sub4WD Posted February 5, 2005 Share Posted February 5, 2005 More energy from the coil means you should gap your plugs bigger (about 15%). This will give a larger spark for more efficient combustion. Should improve gas mileage, maybe more power. He is correct, more voltage, bigger gap, better performance because better (and bigger) spark to ignite the mixture - know people who have been racing for years who follow this technique without any problems, and improved performance. Link to comment Share on other sites More sharing options...
moshem74 Posted February 5, 2005 Author Share Posted February 5, 2005 hi its not correct ,look here: http://www.corollaperformance.com/TechInfo/sparkplugs.html also i asked some peole who work in the car improve performance and i've been told that if you want more powerfull spark-make the gap smaller: If you tend to just drive in traffic or have a light foot, go ahead and open up the gap a couple of thousandths. You will give away some wide open performance (hey, it may do fine for you), but you will gain some gas mileage (disclaimer: your mileage WILL vary – I am not promising any numbers!). For those who live by the millisecond of a quarter mile, I would be curious to see what happens if you stayed stock or even at the low end of the spectrum (say 0.028", or even 0.026"?!?). It should help with the reliability of ignition at WOT which would give more power. As for temperature rating, again if the stock heat rating plugs appear clean and unfouled for your driving conditions, then try a lower heat rating. Remember to check your plugs frequently to see if they are fouling or still running clean. The basic recommendation is that experimentation will lead to the preferred type and setting. If you do not want to bother changing these many plugs, just use the manufacturer's setting – they will not let you down. Link to comment Share on other sites More sharing options...
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