Solid roller oil
Somebody clue me in. Way back with oil and solid rollers it was don't idle it for long or you might burn a roller. Splash oiling. Still work like that? Standard isky rollers.
IMO, it's that guys want to keep the idle too slow. Even with SFT cams I don't like to let the idle get below 950 at the slowest. My cam now will idle at 800 just fine but I have it ~ 1000 RPM for two reasons. One, it keeps the oil splashing around a bit more. And two, the slower the cam is turning, the slower the lifter tends to rotate.
With a roller is essentially the same deal. Except if the lifter rotates you're have a bad day. Some needle bearing lifters are pressure fed and all the bushing style rollers are pressure IIRC. The needles also don't like slow idles speeds, not only because the oil splash is less, but also the needles need to roller. At low idle speeds with relatively high spring loads, they tend to not roll. Once you flat spot a couple of needles it's about to end poorly
Went to a divisional way back in probably 1981ish. There was a Comp Eliminator guy pitted next to a guy named Jim Van Cleve. He and my dad knew each other so we were chit chatting. It was early and the car parked next to him was sitting there, grinding on the starter. Jim says "pay attention because that guy is going to kill a lifter today". I asked how he new and he said he was cranking on the starter like that to build oil pressure before the first cold start of the day he said that's a lifter killer and you are better off just firing it up than doing that.
So we watch to see what happens and sure enough, he never made it out of the water box and it spit up some lifters. So I spent an hour watching him and his wife pull and engine and put in his back up and then do the exact same thing.
