Took a good look at my car yesterday, I sure had a ton of bugs on the front and windshield, and then the general road haze.
I pulled a couple of plugs to see how they did too, I had BPR7ES in there, and they were on the edge of being too hot for that kind of high speed cruising. At one point, which is a function of how our turbos works, on going up those long steep hills, it takes very little throttle to maintain speed, so the manifold pressure is zero or maybe +1 PSI. This creates and almost lean condition, and lean for me being 13 - 14 A/F. This of course gets the exhaust temp heading up there, I know I saw 1,440F.+ . Spark plugs then definitely get hot, which will start to glaze them. I have seen 1,600 -1,700 F over the years.
James and I have the same experience, where sometimes it is just better to put the pedal to the floor, as that puts the fuel into our wide open mode and actually can cool things off a hair.
The new rad was fantastic, given that it was not a hot day out, but my water stayed right at 170F at the most on those long pulls. In the morning, Byron and I could not get the water over 150F.
Some of the vistas we saw really were fantastic, we are so lucky to have some of these routes we do, and then can see the seasonal changes as we do them at different times of the driving season.
"Racing makes heroin addiction look like a vague wish for something salty" - Peter Egan
1973 2Door Slalom/hill climb/road race / canyon carver /Giant Killer 510
1968 Vintage 3HP Mini Bike
1971 Vintage 13' BOLER trailer