Anyone out there got the number for one step hotter than normal NGK's.
Right now I'm running the standards. DPR 8EA 9.
Are hotter's just one number lower?
thanks
jake
I believe a hotter plug will be dpr7ea-9, correct me If I am wrong guys.... Buy bosch platinums in that. Not platinum+4's or crap like that.
Cool.
Srinath.
Yep, it's the DPR7EA9 to go hotter. See http://www.specialgreen.com/~bcarlson/gs500/part-numbers/sparkplugs.html
Or, to look at it the other way around (ambient conditions rather than spark plug heat range) see my post in the thread
Spark Plugs.. do i have the right one? (http://www.gstwins.com/forum/viewtopic.php?t=7270)
Oh, right, I should've asked: why do you want to run hotter?