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Originally Posted by lapsio
What is this? I want it D:
Do those stickers show current temp or max peak?
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They are tell-tale stickers, so they show the highest temp. You can get ones that show current temp (they aren't as accurate), but I don't see the need to crawl under the car regularly while driving, in traffic, or at an event. If I were, I'd just use an IR thermometer or IR camera as it would be far more accurate.
This is just another tool for thermal management. We have them in various places in the engine bay as well
They came from McMaster-Carr, but you can probably find them in other places too.
Quote:
Originally Posted by x808drifter
I was trying to point out that while you are correct that oils thin as they go up in temp. Saying you need to run so and so weight is 100% BS without actual proof backing that up.
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^ This 100%
I see people in here searching for the couple examples that fit the narrative they want to believe, but that's just not how science works. Blackstone Labs already has over 80 results for the BRZ FA24 and thousands of FA20 results from Gen 1. If you really want to know what oil to run. Talk to these people. Don't base your choice on 'because racecar'.
Quote:
Originally Posted by x808drifter
Which is why I asked where that graph came from.
I will take a look at the Widman site after I get Home from work and Update this post then.
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There's a ton of these graphs out there. They all follow similar trends, so you're not going to find much variation unless you veer into 'marketing' graphs.
I see that graph and it shows STARK difference between the weights. Especially when targeting the ideal 210°-240° range. The 50 weight oil is going to be similar to COLD 20 weight. Which of course, explains why the pressure goes up; viscosity is a measure of resistance of a fluid to flow. You want to know how much less oil you're putting on the bearing when your flow resistance doubles? Do the math. It doesn't matter how hard you push on the oil (pressure), but it definitely does matter if you're getting enough on the load surfaces.
I'm going to be doing a bunch of oiling system testing as we do more testing and development work with our mule. I hadn't planned on doing anything with changing viscosities, because it's such a pain to do. With the EJ engines (or any engine for that matter), you change grades and see measurable differences in power, pressure, and flow.