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MX-5 is the best racing series happening. I am being 100% serious. Take 45 minutes out of 12 days of your year and enjoy it, it really doesn’t get much better.
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Jan 27, 2023 04:57
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Sexual Lorax posted:this sent me down a bit of a rabbit hole on bop/eot stuff so thanks It looks like they're not doing a lot for now, which is pleasing. The Acura is allowed to rev higher but that's probably a function of its engine type as much as anything. GT3 is governed the same by the way. There's no reason to care if you don't want to, it does as you say give tight racing but just be aware sometimes a race is won by fooling the BoP guys before the race even begins (LeMans has suffered this in GT a bit) and that anyone saying "Ferrari won x" is kinda talking bollocks.
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Jan 27, 2023 10:42
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SPACE HOMOS posted:https://www.youtube.com/watch?v=8XySlnWVj7I this is wild stuff
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Jan 27, 2023 11:39
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LMDh BoP is pretty straightforward right now, especially since they are only running against themselves. Power is limited (and measured) at the axles to 500kW peak. IMSA defines a power curve in the BOP documents that all cars must adhere to over their rev range, by percentage, so at X percent of your rev limit you're allowed to make Y power. Minimum weights are all identical, the aero box is entirely limited by a maximum lift:drag ratio, and the cars only have one adjustable aero device, the rear wing. Front aero is fixed, so balancing is done with ride heights while overall level is set with the rear wing. It's a pretty boxed in formula so they're naturally gonna be very close. The one thing that has intrigued me is how they control that power curve. The MGU actually is a major part of it, if the ICE is exceeding the power limit, the MGU will kick in and generate energy to soak up that overpower. This is of course pretty inefficient fuel-wise since you're adding conversion losses to the gear train losses on any overpower event, so I imagine, much like wastegates in current F1 cars, you'll see that used less and less as the engine control software improves. I suspect the turbo cars will have their boost control on point pretty fast. The Caddy I'm not so sure how they'll efficiently manage engine output to adhere to that curve. Presumably the curve is modeled off a NA engine like DPi BoP is so they won't have too much of a time doing that but while the MGU is deploying they'll still have to cut power. Wonder if they'll pull timing or use a fly-by-wire throttle or change engine maps on the fly. Tons of really cool software implications behind the scenes that we won't really see too much of since it's designed to be a fairly opaque setup.
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Jan 27, 2023 13:46
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There's still more to add, but the 2023 Thread is up and I'm stickying it for the Daytona 24 weekend.
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Jan 27, 2023 14:16
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