I was reading somewhere here about pinging in hot weather with standard plugs and switching to colder ones in hotter weather. Any recommendations which exact type is standard and which one I could also use in brutal hot caribbean weather? Thx
Quote from: element303 on August 04, 2015, 06:58:29 PM
I was reading somewhere here about pinging in hot weather with standard plugs and switching to colder ones in hotter weather. Any recommendations which exact type is standard and which one I could also use in brutal hot caribbean weather? Thx
I have both the NGK standard & iridium colder range plugs in stock:
NGK - Iridium Racing Spark Plug (1 Stage Colder Heat Range) (http://rpmracingca.com/proddetail.asp?prod=Head%3ADPR9EIX-9)
NGK- Spark Plug (1 Stage Colder than Stock) (http://rpmracingca.com/proddetail.asp?prod=Head%3A2-DP9EA9)
Randy - RPM
Thank you, but should I even go colder for the hot weather?
Quote from: element303 on August 04, 2015, 07:36:54 PM
Thank you, but should I even go colder for the hot weather?
That is as cold as they go.
Randy - RPM
The standard plug for the FJ is an NGK dp8ea-9, I think their a pretty cold plug as it is. Not sure how it works but I think the higher the end number the colder the plug.
The heat in Australia in summer can be brutal as well, but I don't think I've ever heard mine pinging even with the 4 deg advance mod. I run 95 octane fuel which might help it a bit, but haven't heard anyone else mention pinging at all.
Yep, I've got the same plugs, according to manual. Tested on long ride on 45 °C. Mine currently have almost 15000 km. No problems.
I don't think you'll have problems with NGK. As I said, mine have gone almost 15000 km, from -20 to 45 °C.
Quote from: Bones on August 05, 2015, 02:30:07 AM
The standard plug for the FJ is an NGK dp8ea-9, I think their a pretty cold plug as it is. Not sure how it works but I think the higher the end number the colder the plug.
The heat in Australia in summer can be brutal as well, but I don't think I've ever heard mine pinging even with the 4 deg advance mod. I run 95 octane fuel which might help it a bit, but haven't heard anyone else mention pinging at all.
The heat range of the plug is the first number 8 in this case: DPR8EA-9
Between the center electrode and the ground eletrode is the factory pre-set gap, here its the -9 On some plugs they make them with varying gaps.
I regularly run U/L 91 octane fuel and on very hot days can get some mild pinging. I now use 95 when its very hot. Using a fuel with higher octane really has no benefit if its not needed.
Arnie