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Originally Posted by accwai
This isn't about bad synchros--the glitch comes from the synchro *working*. The one real situation that requires double clutching in this car is from 2nd to 1st while moving at non-trivial speed. But elsewhere, there definitely is a different feel between downshift with and without double clutch. Just want to point out to the OP how to get rid of the glitch if he absolutely can't stand it. That's all.
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Its not a "glitch" though, its the synchro working as intended...
Look, you're right that double clutching would "fix" the notchy shift. But IMO, that's not the best advice for a someone who said this is their first manual car. We're dealing with an inexperienced manual driver. He might not even know what double clutching is, or how to do it properly for all we know. Plus, this is a modern, synchronized transmission. Double clutching is unnecessary in almost every situation. So, I think spouting off about double clutching to solve a nonexistent 5th gear synchro "glitch" rather than just telling him to shift properly is isn't the best advice for this particular situation.
OP: "My downshift into 5th feels notchy, what do you guys think?
You:
(just jokes, no disrespect intended)
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Hmm... Downshifting at 70mph probably isn't the best place to learn how to shift smoothly. Anyway, as already mentioned, blipping with the clutch pressed isn't going to affect getting into gear. So there really is no advantage in blipping in neutral then moving into the final gear. If anything, this lengthens the time between the blip and letting the clutch go.
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I mean yeah, a 70mph downshift into 5th isn't the best situation to learn how to shift smoothly, but I'm not sitting in the car with the dude teaching him how to drive stick. I'm posting on a forum trying to give him advice on how to make his 70mph downshift into 5th smoother lol.
Also, I don't recall saying to blip in neutral and then move into 5th, so I'm not really sure why you're talking about that.
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Just clutch in, make the whole shift in one go, blip to a close enough rpm, then let the clutch go right away.
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Yes? That's essentially what I've been saying. But, I emphasized not slamming the shifter into place because the synchro needs an extra quarter second or whatever to do its job. Slam the shifter into 5th: notchy. Gently applying pressure to get the shifter to fall into place: not notchy. Double clutching: also not notchy, but really overcomplicating the issue at hand.