Quote:
Originally Posted by dsiegel360
$15 bucks. Ouch!!! Will Iridium achieve similar results to Platinum?
|
According to the marketing folks, yes they will. If they're as good as they say, why are they so cheap?
But this guy says they work:
http://www.automedia.com/Iridium_Spark_Plugs/pht20010101ds/1
Oddly enough, I did find a patent for a multi-range spark plug:
http://www.freepatentsonline.com/3743877.html
I also found this to be of interest:
Quote:
|
In identical spark plug types, the difference from one heat range to the next is the ability to remove approximately 70°C to 100°C from the combustion chamber.
|
From
http://www.minimania.com/web/DisplayID/1788/SCatagory/ELECTRICAL/DisplayType/Technical%20Information/ArticleV.cfm
Quote:
|
Do you use the stock Bosch 3's?
|
Yup, stock equipment W3DPO's. I heard some folks save them for track work, but I've never had one foul.
[quote]I would have thought that a warmer plug would give better throttle response. Spuggy informed me otherwise. In cold weather, which is better, a warmer plug or colder plug?[/quote[
Actually, it's more accurate to say that you get the best performance with the correct plug... Go too cold and they foul.
You shouldn't have to switch plugs to account for the weather.