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Originally Posted by CSI:86
Watchman got 185WHP from 160WHP, from just a short ram Injen intake + Perrin catback + Stage 1 ecutek tune + perrin pulley.
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Two different days, different conditions, other differences in car? Alignment will also have an effect. 160 seems quite low rwhp for a stock FR-S. 185rwhp for those mods is believable. That's ~218hp at the flywheel.
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Im putting Perrin COLD AIR intake + Perrin HEADERBACK + Stage 2 Ecutek tune + Perrin pulley. I think i should i get more than 25WHP, if not 30WHP.
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I think that's quite optimistic! Dyno before and after, of course.
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And your calculating horsepower gain from the crank, 200HP + 25WHP does not equal 225 crank horsepower on the calculator. 25WHP is about 29-30Hp at crank, signifying a 18 - 20% rwd drivetrain loss.
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Claiming 20% drivetrain loss is a good way to pad flywheel hp estimates. Real world, it's going to be more like 12-15%. Unless you have a ton of rear toe-in and/or low tire pressures.
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disregarding the tires, both tires will be the same on the s2000 and brz. BRZ will still edge out the s2000.
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I don't think so.
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And yes age is important to me. I dont want a 12 year old thrashed f20 engine.
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So don't get one that's been thrashed. Not that they're not totally up to repeated thrashing. Mine has 160k+ miles on it and 25 or so track days on it. Still spinning to 9000rpm reliably
