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Old 12-27-2007, 04:48 PM   #76
slegacy93
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Great info! Thanks.
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Old 12-27-2007, 05:46 PM   #77
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Quote:
Originally Posted by xUNOx View Post
Do you have to release the clutch while double clutching? I don't when I do it. Is that bad?
Quote:
Originally Posted by supafastR View Post
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...


SupafastR
First, yes, you must release the clutch while in neutral, if you don't you haven't "double-clutched" anything.

Second, sure, it will put more wear on the throw-out bearing because you are throwing in another cycle every time you shift. However, rarely does a throw-out bearing last longer than a disc, so no worries there.

No, the clutch disk itself shouldn't see any noticeable increased wear, of course if you don't even rev match, the double clutch will extend your clutch life.
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Old 12-27-2007, 06:35 PM   #78
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I'm a little confused about one thing. What's the point of releasing the clutch in neutral while downshifting (double-clutching)? How is it better than regular heel-and-toe where you skip the neutral step and just rev match while holding the clutch in? I don't see the point in these extra steps...
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Old 12-27-2007, 08:49 PM   #79
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Originally Posted by iyzmi View Post
I'm a little confused about one thing. What's the point of releasing the clutch in neutral while downshifting (double-clutching)? How is it better than regular heel-and-toe where you skip the neutral step and just rev match while holding the clutch in? I don't see the point in these extra steps...
The difference is in the synchros. With the clutch out, tranny in neutral, a blip of the throttle spins up the input shaft of the tranny. Therefore, when you complete the second half of the shift, the engine speed will match the tranny speed (saving synchro wear), as opposed to just aiding in less clutch wear.
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Old 12-27-2007, 11:17 PM   #80
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But does it really do any damage/major wear to the synchros to use the way I mentioned (single-clutch)?
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Old 12-28-2007, 09:48 AM   #81
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Originally Posted by iyzmi View Post
But does it really do any damage/major wear to the synchros to use the way I mentioned (single-clutch)?
just normal wear...

...just as down-shifting without the heel and toe causes normal wear on a clutch...yet most still heel-toe.
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Old 01-01-2008, 04:56 PM   #82
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just a note: starting on a hill. 08+ subarus have an assist function that helps keep you from rolling back on a hill start (I believe it applies the rear brakes for a few seconds after you release the brake pedal).

I find it annoying, but it eliminates the need for newbie MT drivers to use the hand brake.
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Old 01-01-2008, 06:52 PM   #83
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I never used the hand brake method when I was learning...
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Old 03-23-2008, 01:33 PM   #84
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amazing job helped me a lot!!!!!!!!!
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Old 04-02-2008, 06:20 PM   #85
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subscribed!
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Old 04-10-2008, 08:49 PM   #86
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Very good post, although I am interested in learning more about the hand resting as it is definitely something I find myself doing.

I own an 08 Base Impreza without the hill assist, which I think is only available on the higher models. If you are A) new to Manual shifting and/or B) you live in an area with lots of hills definitely consider getting it. But if you are an intermediate+ MT user, then why pay extra for it and reverse the knowledge you have so carefully stored in your brain about good clutch/gas footwork!
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Old 04-17-2008, 02:30 AM   #87
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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.
on step 5, i should be pressing teh gas while i realse the clutch right?
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Old 04-17-2008, 04:11 AM   #88
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lol yes. yes u should.
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Old 04-30-2008, 11:37 PM   #89
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awsome post, this helps
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Old 05-02-2008, 04:31 PM   #90
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I have always wondered with my shifting if my technique is correct or not.

My "normal driving" shifting method:
(1) When I hit my chosen shift RPM, I usually try to (2) press down the clutch pedal as quickly as I can, (3) slide the shifter straight into the next gear, (4) either hold or blip the throttle a little to the approximate RPM for the gear I just shifted into, then (5) quickly release the clutch pedal about half way and slowly release the rest of the way until my foot is no longer pressing down anymore.

Also when normal driving, I usually shift 1, 2, 5 or 1, 2, 4, 5 (5MT Trans).

When "Performance" driving I shift basically the same way, except I always try to hold RPM's (instead of throttle blipping) at the next gears approx. RPM and I also don't push the clutch pedal all the way to the floor, about 2/3 down seems good. The shift is obviously a lot quicker between gears and I don't skip gears.

Anything WRONG or abusive with my technique? I killed my (5MT) tranny in my stock 03 WRX in about 32k miles, but now in my 02 (400+ HP STi engine with 18lbs managed boost), the trans has always shifted easier and smoother than my stock 03 did. I also more recently put in a "scotty's cocktail"-like mix of fluid and upgraded the shifter, linkage, and all the bushings.... super nice shifting now!

Also, I get quite a whirling / whirring sound from my gearbox at non-highway, especially lower gears RPM's. I was told there is a (04-05?) STi RA gearset in this trans, is the whirring sound from straight cut gears (like 1 -3)? How would I know without opening her up?


Thanks,
Craig
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Old 05-02-2008, 05:40 PM   #91
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You are fine. RA gears are NOT straight cut.
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Old 05-02-2008, 05:46 PM   #92
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Quote:
Originally Posted by supafastR View Post
Also, I get quite a whirling / whirring sound from my gearbox at non-highway, especially lower gears RPM's. I was told there is a (04-05?) STi RA gearset in this trans, is the whirring sound from straight cut gears (like 1 -3)? How would I know without opening her up?


Thanks,
Craig
SupafastR

This is somewhat of a shot in the dark, but it COULD be a throw-out bearing issue, something I'm dealing with right now. When engine-braking between 2200-3400, I have a loud whirring/buzzing sound, and it's because of a bad throw-out bearing on my new clutch. Seeing as how it doesn't affect performance, I haven't yet spent the money to have the tranny dropped again for replacement, and don't yet have enough experience with the transmission to tackle it myself. I'm curious though, you went from an 03 to an 02, or just the transmission was swapped?
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Old 05-02-2008, 08:00 PM   #93
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great info!!
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Old 06-14-2008, 08:52 PM   #94
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Once again you have answered questions I will never have to ask? Write a book on subaru performance and get rich, its better than 50% pay for retirement, and you are a very well known in this neck of the woods, Hell I'll buy two, over and out!
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Old 06-16-2008, 02:35 PM   #95
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Clarification answer: I sold my '03 wagon and bought an '02 sedan to replace it. I loved the wagon, but I have a tuner car with an STi engine now so I can make do with a little less space...
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Old 11-01-2008, 03:07 PM   #96
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what do you call shifing with no clutch at all and just rev matching engine to the gear your going into? i drive the company diesel like this all the time and drive my 04 sti like this sometimes as well. you just rev match, slide the shifter slightly into the gear you want to go into and wait for it to fall in. i learned this from my step dad driving 18 wheelers, this is how they shifted all the time except into first from a stop or reverse.
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Old 11-01-2008, 04:14 PM   #97
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^ Floating gears
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Old 11-01-2008, 04:39 PM   #98
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lol......thats it, i couldnt remember to save my life, is this good or bad for the transmission or doesnt really matter?
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Old 11-01-2008, 05:34 PM   #99
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Another name is power shifting. I would say I wouldn't reccomend it for a small car like that, but if you can do it without grinding sounds or forcing the gears, I don't see what can be damaged. I don't know enough to answer the question
I used drive small diesels for plumbing supply co. and could it to but mostly in higher gears, but i've never done or will attempt to do it in my suby or any small car.

Your the first person that I've heard of driving a regular car using this method.
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Old 11-01-2008, 07:32 PM   #100
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^^I've shifted without the clutch a few times in various Subies. I was able to do it but it made me nervous so I stopped.

Quote:
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I never used the hand brake method when I was learning...
Neither did I but the first car I drove MT in had a foot-operated parking brake.
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