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Shifting into gear while moving???

It's harder on the synchros if you shift into a very low gear when moving at a high speed. The resistance you feel is the synchros trying to do their

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Old 07-27-2012, 09:58 AM   #1 (permalink)
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It's harder on the synchros if you shift into a very low gear when moving at a high speed. The resistance you feel is the synchros trying to do their job.

So for example if you are on the highway going 60 mph and you take an off ramp with a sharp turn at the end and you say "OK, I will need to be in 2nd for that turn, so I will just push the clutch in now and shift to 2nd at 60 mph" you are going to feel significant resustance and doing this often will cause a lot of wear on your synchros.
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Old 07-27-2012, 10:15 AM   #2 (permalink)
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It's harder on the synchros if you shift into a very low gear when moving at a high speed. The resistance you feel is the synchros trying to do their job.

So for example if you are on the highway going 60 mph and you take an off ramp with a sharp turn at the end and you say "OK, I will need to be in 2nd for that turn, so I will just push the clutch in now and shift to 2nd at 60 mph" you are going to feel significant resustance and doing this often will cause a lot of wear on your synchros.
As long as you bleep the throttel and match the RPM speed to wheel speed then you are ok. You can be in 1st gear at 30 if you really wanted to LOL. The max gear speeds are below. But like people mentioned earlier, you MUST be in gear through a corner to keep the wheels locked to the engine. Engange the clutch either before the corner or as you exit the apex.

1st - 40

2nd - 65

3rd - 90

4th - 115
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Old 07-27-2012, 10:24 AM   #3 (permalink)
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1st - 40

2nd - 65

3rd - 90

4th - 115
Please dont lol

if you are rolling, stick in second.

a) wont make u look like a "because race car" driver. (noob with a mt)

b) first gear on ALL transmissions is not easily activated at speed. will it? Sure! will your trans enjoy it? no

c) refere to a)
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Old 07-27-2012, 10:34 AM   #4 (permalink)
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^This. There is no need to downshift into 1st, ever. Maybe on a track, maybe...
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Old 07-27-2012, 12:01 PM   #5 (permalink)
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As long as you bleep the throttel and match the RPM speed to wheel speed then you are ok. You can be in 1st gear at 30 if you really wanted to LOL. T
Yes, if you double clutch and rev match so the synchros don't have to be overworked, you can downshift into 1st at 30, but if you did that then you won't feel any additional resistance and you wouldn't be posting this thread.

The point was that he shouldn't be cramming the trans into any gear at any mph because yes, it's hurting the car.
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Old 07-27-2012, 12:53 PM   #6 (permalink)
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Yes, if you double clutch and rev match so the synchros don't have to be overworked, you can downshift into 1st at 30, but if you did that then you won't feel any additional resistance and you wouldn't be posting this thread.
double clutching really hasnt been needed since like the 40's. the advent of synchros eliminated that from common practice. theory being, double clutching matched gear speeds. but now u got synchros to do that for u
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Old 07-27-2012, 01:06 PM   #7 (permalink)
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double clutching really hasnt been needed since like the 40's. the advent of synchros eliminated that from common practice. theory being, double clutching matched gear speeds. but now u got synchros to do that for u
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Old 07-27-2012, 02:20 PM   #8 (permalink)
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double clutching really hasnt been needed since like the 40's. the advent of synchros eliminated that from common practice. theory being, double clutching matched gear speeds. but now u got synchros to do that for u
Correct, the synchros do that. And in doing that, they wear out. Especially if you are trying to cram the car into 1st gear at 30 mph, or 2nd gear at 60 mph. The more they have to synchronize the speed due to different rotational speeds, the more they have to work, which is why it's difficult to push the shifter into 2nd at 60 mph, etc.

So you can either not shift into 2nd at 60/1st at 30, or you can double clutch and rev match to assist the synchros and avoid excessive wear, or you can wear out your synchros, it's up to you.

Last edited by Davey; 07-27-2012 at 02:22 PM.
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Old 07-27-2012, 04:34 PM   #9 (permalink)
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Originally Posted by Davey View Post
So for example if you are on the highway going 60 mph and you take an off ramp with a sharp turn at the end and you say "OK, I will need to be in 2nd for that turn, so I will just push the clutch in now and shift to 2nd at 60 mph" you are going to feel significant resustance and doing this often will cause a lot of wear on your synchros.
So what would be the best way? Turn, then downshift to 2nd and accelerate?

This is what I usually do on sharp turns. The thing I don't like about it is I can't accelerate right away after that.
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