Quote:
Originally Posted by gmd2003
Beedub , check out this article from NGK our OEM plug provider, it will put you on the same page. http://www.ngksparkplugs.com/tech_su...k_plugs/p2.asp . Essentially going up one temp range on a plug lowers cylinder temps 70-100 C , Since I have knock , retarded timing , and high temps on track along with the fact our motors are high compression, high rpm and now high boost , the decision is easy. ESS likely doesn't do colder plugs bc they build and test their cars in Norway ( Its really cold their a lot )Roman agrees with me that for my usage pattern and location it's a good idea as the reduction in cylinder temps will reduce knock and actually increase my power by allowing the ecu to advance timing. The reason you don't run a colder plug stock is if the cylinder temp is too low < 500C ( ideal is 500-700) you have increased carbon fouling of the plug and then incomplete burn. With FI at 8+ PSI , a 8k redline and a high compression ratio there is no way we have a low cylinder temp issue ( even you in England lol)
George |
hey george, leave england out of this!!! lol!! do you have a part number.... im game to give it a try :-)