what heat range plug
#10
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I just walked out to the garage to look. Get a package of 4 x NGK BKR6ES-11 stock no 5553. Comes in a silver box, no groove, and is around $4.50.
Get a gap feeler and close them down to .35 or so if you have a miss that only occurs under boost.
Get a gap feeler and close them down to .35 or so if you have a miss that only occurs under boost.
#12
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I'm not going to say there's anything wrong with going with heat range 7 and a small gap for safety BUT you really want to run a hotter plug and larger gap unless you have a problem doing so. A colder plug is less efficient than a hotter plug. BUT too hot of a plug in the wrong/ignorant hands can lead to big $$ damage.
#15
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-11 mean they are pregapped at .044"
BKR7Es are pregapped at .035" (Stock Number 6097)
The stock 1.6 used BKR6E-11 plugs. The 1.8 uses BKR5E-11 plugs. You want to go 1 heat range colder for every 75-100 hp added. So if you have a 1.6 you'll want a heat range 7 with ngk plugs and if you have a 1.8 you can just buy 1.6 plugs.
BKR7Es are pregapped at .035" (Stock Number 6097)
The stock 1.6 used BKR6E-11 plugs. The 1.8 uses BKR5E-11 plugs. You want to go 1 heat range colder for every 75-100 hp added. So if you have a 1.6 you'll want a heat range 7 with ngk plugs and if you have a 1.8 you can just buy 1.6 plugs.
#20
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Hmm I'm not sure you're with me on this homie.
The hotter plug
hotter cylinder temps
higher cylinder pressure
burn off deposits
more efficient
The colder plug
more likely to foul the plug
more likely to leave deposits on the cyl walls
lower cyl pressure
takes heat from combustion and *delivers it to the cooling system*
less efficient
The hotter plug
hotter cylinder temps
higher cylinder pressure
burn off deposits
more efficient
The colder plug
more likely to foul the plug
more likely to leave deposits on the cyl walls
lower cyl pressure
takes heat from combustion and *delivers it to the cooling system*
less efficient