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Old 10-10-2005, 02:20 AM   #51
gza
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Quote:
Originally Posted by Mike Wevrick
Yeah; I double-clutch my 1-2 shifts the first few times after starting car; more in the winter.
I also double-clutch my 1->2 shifts, those are the most tricky (for me) to get smooth...
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Old 10-10-2005, 04:09 AM   #52
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Quote:
Originally Posted by Damn Yankee
sounds like you're rev-matching wrong, unless you're talking about not using your clutch at all.

when I rev-match downshift it's clutch in with revs up as shifter goes into new gear, clutch out. if done right you shouldn't even feel the shift, you should just be at a higher rpm....works perfectly on my motorcycle too.
this is my method of downshifting.

clutch in
select neutral
clutch out
blip throttle
clutch in select lower gear
clutch out.

i am def. rev-matching and def. double clutching the right way. like i said it doesn't take anymore time to do than a simple rev-match. in fact, this is a much better way of rev-matching since when you rev-match without double clutching you're just increasing the engine revs. with my way of downshifting you rev the engine AND the input shaft which means less stress while engaging the next lower gears. which means the synchros don't have to do squat. that is a good thing.
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Old 10-16-2005, 09:48 PM   #53
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http://www.teamsmr.com/movies/Footbox%20Small.wmv

^- someone using double clutching and heel toe like they invented it Good one for the n00bs to see

john
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Old 12-09-2005, 03:22 PM   #54
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I know. New post in old thread. Double clutchers -- Do not forget about the clutch release bearing, which does double duty in DC and does not last forever.
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Old 01-14-2006, 06:38 PM   #55
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i think the heel toe section is wrong! well the animated part at least.
blip the throttle while in neutral then put in lower gear takes along. i think doing it that way seems pointless i dont see the point in reving it while neutral . My way of heel toe, let say im in 3rd and i want to go to 2nd for a turn so i brake then i push the clutch in then put in 2nd and blip throttle and let go of clutch.

1. brake, then clutch in
2. move to lower gear
3. blip the throttle with your heel, while holding in the clutch (the foot is still on the brake)
4. then i release clutch and the brake. yadadada then accel out
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Old 01-26-2006, 05:14 PM   #56
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Quote:
How do I shift without the thump?
You should wait until the point where you are no longer pressed into the back of your seat to let the clutch out on your second gear shift. As to the actual application of this technique:

1. You are in first gear, taking it to your favorite shift RPM.
2. Once you reach this RPM, let off the gas pedal and depress the clutch.
3. Shift into second. (Items 2 & 3 can be done quickly)
4. "The wait". Judge it based on your body's movement. Visualize your pelvis as the axis....when the rearward pressure of acceleration leaves your body and you feel as if you can naturally lean forward at the waist.....this is the shift point.
5. Release the clutch.

This is a shifting technique that requires some practice due to variances from car to car. Yes, it's slower, but better for your rear differential and transmission in the long run.
I think this could use some editing.

The imput shaft when disconnected from the driveline and engine rotates at about the same speed as the flywheel.

So if you want a smooth shift all you need to do is put light pressure on the gear shift untill it 'falls' into gear then lift up the clutch at a quick pace (less than a second) with no jerk or clunk.

For example, you're in second gear. For a smooth shift put your foot on the clutch and take the car out of gear. Take the gear lever, don't jam it into the next gate, and put light pressure to get it into 3rd. When the revs match the shifter will seem to almost pull itself into gear. At that time you can lift your foot off the clutch quickly.

Much easier than waiting for that point when the accleration of the car has slowed.
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Old 01-26-2006, 06:47 PM   #57
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Quote:
Originally Posted by HighRevimpreza
i think the heel toe section is wrong! well the animated part at least.
blip the throttle while in neutral then put in lower gear takes along. i think doing it that way seems pointless i dont see the point in reving it while neutral . My way of heel toe, let say im in 3rd and i want to go to 2nd for a turn so i brake then i push the clutch in then put in 2nd and blip throttle and let go of clutch.

1. brake, then clutch in
2. move to lower gear
3. blip the throttle with your heel, while holding in the clutch (the foot is still on the brake)
4. then i release clutch and the brake. yadadada then accel out
Double clutching while rev matching saves your synchros from a bit of wear...the way you do it does not.

While the way you do it is certainly faster on the track, if you have the time during the daily commute to double clutch on the downshift...why not?
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Old 02-15-2006, 12:06 PM   #58
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I just read this post and I must say it is VERY VERY informative. Some information I had been looking for about our transmission I just found . Thanks Unabomber you're the best.
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Old 04-05-2006, 03:12 PM   #59
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Unabomber... Will you be my friend???
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Old 05-06-2006, 10:03 AM   #60
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very very helpful! Thanks!
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Old 05-06-2006, 05:32 PM   #61
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what should be a sticky is the neccessity to get a kartboy short shift and bushings. words cant express how much better the car shifts.
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Old 01-18-2007, 12:54 PM   #62
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Very good read. I'll use some of this to teach my wife to drive my car. Thanks.
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Old 01-18-2007, 01:12 PM   #63
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A very good FAQ
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Old 02-20-2007, 09:36 AM   #64
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This answered a lot of questions. Thanks for the thread.
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Old 02-20-2007, 09:53 AM   #65
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Quote:
How do I shift without the thump? You should wait until the point where you are no longer pressed into the back of your seat to let the clutch out on your second gear shift. As to the actual application of this technique:

1. You are in first gear, taking it to your favorite shift RPM.
2. Once you reach this RPM, let off the gas pedal and depress the clutch.
3. Shift into second. (Items 2 & 3 can be done quickly)
4. "The wait". Judge it based on your body's movement. Visualize your pelvis as the axis....when the rearward pressure of acceleration leaves your body and you feel as if you can naturally lean forward at the waist.....this is the shift point.
5. Release the clutch.

another mtd works for me better:
Steps 1,2 and 3 are the same as above. Without having to wait (step 4 above), I would quickly release the clutch until just before the 'biting' point. Then I would gradually release the clutch until fully. During the process of releasing the clutch, i would gradually step on the gas. If done correctly, there will be no rear diff klunk no matter slow the car is or how low the engine revs are.

This method is very similar to moving from stationary in 1st gear and it works for all gears.

my 2 cents
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Old 02-21-2007, 10:13 PM   #66
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awesome advice i'll take it easy on my shifrting now...driving a fwd car will do this to you
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Old 03-28-2007, 09:06 PM   #67
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Great thread... very informative. While I'm not new to driving MTs, I just bought my first one. This really helps me understand the idiosyncracies of the Subie trans as opposed to the Audis and VWs that I'm used to driving.

Now I just need to fix my 1st gear Synchros so I don't have to drive it like an old REX. (long story...)
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Old 04-06-2007, 01:50 PM   #68
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Thanks! Very helpful. I have some practicing to do.
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Old 06-06-2007, 03:10 AM   #69
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i have never heard of the heal/toe thing but i always downshift that was really helpful, but i dont quite understand what double clutching is used for, can anyone elaborate?
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Old 06-06-2007, 08:50 AM   #70
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Quote:
Originally Posted by Warguy View Post
i have never heard of the heal/toe thing but i always downshift that was really helpful, but i dont quite understand what double clutching is used for, can anyone elaborate?
I think for some trannies its better to double clutch to downshift quicker? im not totally sure tho someone help me out.
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Old 07-15-2007, 04:46 AM   #71
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Do you have to release the clutch while double clutching? I don't when I do it. Is that bad?
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Old 07-15-2007, 08:59 PM   #72
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thankyou for anwsering every question i was afraid to ask
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Old 08-06-2007, 03:29 AM   #73
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awsome thread, i read it for an hour. cant wait to hit the road tomorrow!
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Old 10-10-2007, 12:56 AM   #74
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+10 beautiful descriptions couldn't put it much better myself i double clutch and heel toe in the every day daily driver setting, that way its second nature not to mention a clutch is cheaper than a tranny
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Old 10-17-2007, 03:14 AM   #75
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Default Wear and Tear

So, for the double clutch move, isn't that going to eventually put alot more wear on the throw-out bearing and maybe even the clutch disc itself? Someone asked above and I didn't see an answer yet...


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