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Here's one part that doesn't sound right: "Most rear drive cars have a 1 to 1, 4th gear which means that the power path goes directly through the mainshaft of the transmission. The only losses here are bearing drag which is less than 0.5% and the viscous drag of the gears running through the oil which is about 1% with hot oil. Indeed, published data indicates a transmission efficiency of 98 to 98.5% for conventional transmissions in 4th gear. Losses within the driveshaft account for about 0.5% if they are properly aligned, balanced and with fresh U-joints. Differential losses in the commonly used Hypoid type gearset is in the order of 6 to 10%. The worst scenario case for a rear drive setup is on the order of 12.5%" Ok, take our TT's for instance. They are rated at 300 HP at the crank, and people who put them on dyno's usually get around 245 RWHP. If this article is correct, then in a worst case scenario for drivetrain inefficiency our cars have around 280 HP at the crank. Remember, this article contends that the drivetrain loss is even less than that. So what they're saying is that with their claimed drivetrain loss and with 245 rwhp, our cars should only have around 260something HP at the crank. I'm sure Nissan put the VG30DETT on an engine dyno when they came up with the rating of 300 hp.
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