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General Shifting Questions

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Old 09-24-2008 | 02:19 PM
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Default General Shifting Questions

The S2000 is my first manual car. I became somewhat familiar with driving manual in friends' cars prior to buying it, but by no means perfect. I have a few questions about this:

1) First to second is a large change in gear ratio compared to the rest of the shifts. I find that I have to pause for over a second for the RPM to drop to get a smooth shift into second. This is kind of annoying when someone is riding my ass or something. What's the best approach?

2) I'm trying to practice downshifting for passing or slowing down. I know this can be hard on the drivetrain if done incorrectly, so I'm working on the double clutch method where I disengage the clutch, shift to neutral, engage, rev, disengage, shift to lower gear. I don't always judge the amount of gas to give correctly and it's really jerky if I'm off by 500-1000RPM. Is this going to put too much stress on anything while I'm learning it?


Thanks for any advice.
Old 09-24-2008 | 02:47 PM
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Don't do anything fancy. Double clutching is unnecessary in a totally synchored car. Theres nothing drastically different in this car than any other stick shift.
Old 09-24-2008 | 02:55 PM
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I think it had something to do with how the drivetrain is immediately forced to spin at a higher RPM when downshifting and single clutching. Whereas, double-clutching brings everything up to speed since the clutch is engaged when you rev-match.

So, this isn't worth worrying about?
Old 09-24-2008 | 04:07 PM
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Originally Posted by s2kvince,Sep 24 2008, 02:55 PM
I think it had something to do with how the drivetrain is immediately forced to spin at a higher RPM when downshifting and single clutching. Whereas, double-clutching brings everything up to speed since the clutch is engaged when you rev-match.

So, this isn't worth worrying about?
Modern transmissions have syncros which do that automatically. It is unnecessary to double clutch in a car with syncros.

The only upside I know of to double-clutch downshifting is that it's a little easier on the clutch than rev matching with the clutch in, but then again it's also slower to double-clutch.
Old 09-24-2008 | 04:37 PM
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You want to learn how to rev-match and heel-toe the car. As has been said there is no need to double clutch a modern transmission. Check out this video. Look at his foot-work. And he is in Leather boots and white socks. Obviously he is pushing the car to the limit. I think this is one of the best videos of the car (prototype) just like mine the orginal.

http://video.google.com/videoplay?do...25404894830688

Enjoy.

Also do a search on rev matching and heel-toeing.

mlc
Old 09-24-2008 | 05:01 PM
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^^ i could seriously watch that video ALL day
Old 09-24-2008 | 07:25 PM
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lately ive been engine braking to slow down a light, i find it fun to do.
Old 09-25-2008 | 01:29 AM
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Originally Posted by roflitzjinno,Sep 24 2008, 08:25 PM
lately ive been engine braking to slow down a light, i find it fun to do.
There is nothing wrong with engine braking is there?
Old 09-25-2008 | 02:29 AM
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Originally Posted by Richardh123,Sep 25 2008, 01:29 AM
There is nothing wrong with engine braking is there?
Yes there is!

a Transmission is more expensive to fix than your brakes use your brakes for what they're made for.
Old 09-25-2008 | 02:44 AM
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Originally Posted by s2kvince,Sep 24 2008, 02:19 PM
The S2000 is my first manual car. I became somewhat familiar with driving manual in friends' cars prior to buying it, but by no means perfect. I have a few questions about this:

1) First to second is a large change in gear ratio compared to the rest of the shifts. I find that I have to pause for over a second for the RPM to drop to get a smooth shift into second. This is kind of annoying when someone is riding my ass or something. What's the best approach?

2) I'm trying to practice downshifting for passing or slowing down. I know this can be hard on the drivetrain if done incorrectly, so I'm working on the double clutch method where I disengage the clutch, shift to neutral, engage, rev, disengage, shift to lower gear. I don't always judge the amount of gas to give correctly and it's really jerky if I'm off by 500-1000RPM. Is this going to put too much stress on anything while I'm learning it?


Thanks for any advice.
1) you can either shift at low rpm's which won't make your car jerk or you can release your clutch slow and it will smoothly engage. But if your racing someone, Redline the shit out of your car and release your clutch quick when you change gears of course though it's not going to be a comfortable ride "Duh" (cause your racing someone since when was racing someone supposed to be a smooth elegant ride?).

2) Double Clutching is useless, you've been watching too much fast and furious, just kidding, but yea there's no need to double clutch just dump that gear and book it if you down shift to super low gear like 2nd or 1st or even "3rd on RARELY small cases" you'll blow up your tranny

So in leman's terms S2000's if you've read the consumer report the S2000 is a stiff car cause of it's monoque (however you spell it) frame. It's not a lexus or infinity it's a sports car that's meant to be raced because that is it's purpose. It's not supposed to be a smooth ride and manual transmissions when your learning is not very forgiving it'll take awhile to know how to use it correctly. When I first started driving I only drove a manual when I got to an automatic, I didn't know how to make the car go forward I only knew manual at that time (I know driving automatic is no brainer).

I hope I was much help, done.


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