Originally Posted by Jin_SK

Isn't how fast (lap times) not even necessarily indicative of a well functioning cooling system, at its limit? I mean, take car A with at some power level that makes some lap time, and car B that has less power but posts the same time. An argument could be made that car B is just as fast because he has higher speeds in the turns, notably due to some variable other than power (aero, tires, suspension) that lead to that time right? And even with the lower power level, car B's water temps are higher than car A's. My point is the most accurate measure (I'm asserting) of whether the cooling system is working "sufficiently" well is how it takes to repeated, long, WOT runs? That's what we're after right, by talking about tracking? We don't even need to address turns (tracking) as that doesn't necessarily deal with power/cooling, i.e. heat, i.e. the subject at hand.

I feel like the only way we can all truly measure, log, and share how well our systems work is by going WOT from say 20-100-20 over and over again. The point being WOT to redline is going to introduce the MOST amount of heat, and by doing so repeatedly we're truly testing the ability of the cooling system to shed heat, heat upon heat, upon heat. No need to bring how fast the person is (lap times). With temperature data and relevant modifications (vented hood, fans, intercooler/radiator configuration, dimensions of said parts, etc) maybe we can actually start talking with facts and not assumptions and "they said this" or "I heard this". Sure, having a V-mount will give the best chance of lower water temps, not arguing that. But some guys (like me) don't have that option due to cost, turbo configuration, or whatever. Do you NEED a v-mount? I don't know, and that's where we can start answering questions like that for the betterment of everyone with data. Again, the data doesn't lie

Originally Posted by Jin_SK

Isn't how fast (lap times) not even necessarily indicative of a well functioning cooling system, at its limit?

Originally Posted by SlowTeg

True, but it gives us some point of reference and is better than nothing. More power = more heat. More time on the throttle = more heat. So obviously faster cars stress the cooling system more. There are many different variables as well on track, like if you're not getting clean air because you're behind a car, etc. I'm not even saying you need to be setting track or class records, just that you can't be 10+ seconds off an N/A s2k's time and say "it does well on track."

Perhaps that wouldn't be a terrible "metric," but in actuality how many people are going to do that? Also, that's going to be absolute murder on the brakes for most people doing successive 100+->20->100+ etc over and over. I think using lap times isn't a bad metric because most people know or can figure out what a quick time is for an s2k on a track.