Hallo Sakis,
dies hier war auf der Webseite von NGK zu finden :
BCPR6E :V-power spark plug
14mm, 3/4" reach, 5/8" hex, gasket seat, resistor, JIS height, projected tip, V-power (v-grooved center electrode)
NGK's unique V-Power design directs the spark to the edge of the electrode where it develops more rapidly, this increases ignitability even in lean burn conditions. In addition the NGK V-Power plug has all the features of their traditional plugs including corrugated ribs, pure alumina silicate ceramic insulator for greater strength and better heat transfer, copper core and triple interior seal.
BCPR6ES :Traditional spark plug
14mm, 3/4" reach, 5/8" hex, gasket seat, resistor, JIS height, projected tip
NGK traditional plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage.
Auf
www.ngk.com steht noch mehr dazu, auch mit Bildern.
Gruß Martin
