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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
View Poll Results: How do you downshift? | |||
Nothing | 16 | 10.39% | |
Rev Match Only | 116 | 75.32% | |
Double clutch | 22 | 14.29% | |
Voters: 154. You may not vote on this poll |
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08-31-2017, 01:42 PM | #99 | |
extra what?
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I double-clutch into first countless times a day because I commute in stop-&-go traffic and refuse to lug an engine.
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08-31-2017, 02:34 PM | #100 |
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I've driven no less than 15 of these cars from 2012 to 2017 and never in my life would I double clutch. What is this ricer nonsense?
edit: "double clutching" in stop and go traffic does not count. it's a by product of the situation .. not a driving strategy
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08-31-2017, 02:50 PM | #101 |
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Nope.
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08-31-2017, 03:10 PM | #102 | |
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Is there a year range that you guys have tried? And have you tried the 17s? There might be a fix for it like new fluid or a bad syncro. |
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08-31-2017, 06:24 PM | #103 |
extra what?
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There's nothing wrong with the transmissions. I personally have two of them. I say "I don't know why" because I don't know exactly which parts differ and exactly how those differences affect operation. Bottom line, though, is it comes down to manufacturing tolerances and how the build process compensates for them.
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08-31-2017, 06:49 PM | #104 |
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This makes no sense at all. Into first when rolling and in an autoX? Why would you ever be rolling anyway?
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08-31-2017, 08:20 PM | #105 |
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Rolling because it's midway through a run and a corner too slow for 2nd gear...
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08-31-2017, 08:24 PM | #106 | ||
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Quote:
Quote:
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08-31-2017, 10:11 PM | #107 | |
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Yes tolerances have a lot to do with it as well you are correct. It's still hard to believe so many people have this problem. |
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08-31-2017, 10:30 PM | #108 | |
extra what?
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I haven't noticed correlation to model year but most of us have 13s. I can't really speak to newer ones.
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08-31-2017, 10:49 PM | #109 | |
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Your forgetting one major point that's syncros the job of the syncro is match the speed of the collar so that is is close to the same speed as the gear so your mass is rotating at the same speed so when the gear is changed and the clutch engages when you let it out your in that gear. With out syncros that is the purpos of double clutching to match the rotating mass and the collar to the gear that you are going in to. Each one of your gears has a ratio for putting torque to the differential. First gear is the highest and you are putting the most trq the differential. Your last gear the smallest will keep you balenced at low rpm so when your crusing so you will have less trq going to it. Trq gets you going horsepower keeps you going. |
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09-01-2017, 12:07 AM | #110 | |
extra what?
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What it does wear on this car is the bullshit aluminum input shaft cover but that's only one of a few flaws in the design of the whole clutch operating mechanism.
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09-01-2017, 01:14 AM | #111 | |
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Lets look at it logically shall we? On a normal shift the clutch disengages the trans once and re-engages it once. Double clutching, instead of having two points of friction (release/engage) has 4 points of friction (release/engage/release/engage). Logically speaking, which of these would cause more wear? I would imagine that since there are 4 points of friction that more heat would be generated, therefore actually wearing out the clutch FASTER. You are also using your throw out bearing more so that will also wear out faster. |
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09-01-2017, 01:23 AM | #112 | |
extra what?
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