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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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06-05-2018, 01:45 AM | #29 | |
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Not going to try and guess gains, especially since it's 1:45 am here and waaaaay past my bedtime lol. I'll get you real math-like numbers later. |
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06-05-2018, 01:52 AM | #30 | |
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You should try a salt slab instead. |
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06-05-2018, 01:53 AM | #31 |
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06-05-2018, 01:56 AM | #32 |
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06-05-2018, 02:17 AM | #33 |
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Don't forget the oil.
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06-05-2018, 03:08 AM | #34 |
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Has the crank pulley not changed for the MY17? If so, does Fluidampr have one for the facelift cars?
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06-05-2018, 04:07 AM | #35 |
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Haven't heard of crank pulley being among changes. 99% sure that old pulley will still fit. ATIs one seems more interesting to me though, as it's also underdriving/smaller diameter. So less power spent on turning accessories, yet more dampening then solid lightweight alu ones.
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06-05-2018, 10:05 AM | #36 |
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For underdriving the peripherals (e.g., alternator, water pump) you need larger diameter pulleys, not smaller ones.
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06-05-2018, 11:00 AM | #37 |
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Inb4 math and physics can’t accurately model real life.
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06-05-2018, 11:27 AM | #38 |
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This is incorrect. The crank pulley being smaller means the other components spin at lesser RPM compared to engine rpm.
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06-05-2018, 12:10 PM | #39 | |
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06-05-2018, 12:47 PM | #40 |
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I consider the fluidampr to be a preventivive mod, like oil cooler, baffle plate, fuel door etc.
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06-05-2018, 01:20 PM | #41 |
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This is not how you do it. You keep the crank pulley same size and change the size of the other pulleys. You want different underdrive ratios per component. You might also need to not underdrive certain components. For example, I underdrive the alternator and not the water/coolant pump. You also need larger pulleys and not smaller. Let's not misinform people.
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06-05-2018, 01:24 PM | #42 |
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carbon fiber, driveshaft, dss, fluidampr, pulley |
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