1 2
oldsaw
oldsaw SuperDork
8/19/11 12:07 p.m.
pigeon wrote: You know, for a movie that's universally mocked, a whole lotta people here are able to quote and describe multiple bits of the movie... I may eventually work on double clutching the downshifts on my 98k mile E46 M3, but for now I need to work on heel-toe technique first.

Perhaps it's mocked for a cheesy plot; not so much for the cinematography. Maybe you need to work on more than just that heel-toe technique?

Just sayin..........

N Sperlo
N Sperlo Dork
8/19/11 12:15 p.m.
oldsaw wrote:
pigeon wrote: You know, for a movie that's universally mocked, a whole lotta people here are able to quote and describe multiple bits of the movie... I may eventually work on double clutching the downshifts on my 98k mile E46 M3, but for now I need to work on heel-toe technique first.
Perhaps it's mocked for a cheesy plot; not so much for the cinematography. Maybe you need to work on more than just that heel-toe technique? Just sayin..........

Pidgeon, you almost had em!

Get it? No?...

JoeyM
JoeyM SuperDork
8/19/11 12:39 p.m.
N Sperlo wrote: Because everyone loves corny movies. Twister is my favorite. Do you have any ideas how many bloopers and non-truths are in THAT?!

Twister is what is left after you take all the awesome sci-fi content out of a Bruce Sterling novel

ransom
ransom GRM+ Memberand HalfDork
8/19/11 1:05 p.m.
jonny330 wrote: In reply to ransom: Thank you for that explanation I never understood the reasoning behind the double clutch but that makes complete sense. I don't see how anyone can do that quick enough to be fast. It seems like a lot of work when trying to get around a track as fast as you can.

After using it on the street and at autocross, I was stunned when I did a track day and found out how long I spent on the brakes and how much time that gave me to do the downshifts. I mean, my E30s brakes were nothing to write home about, but with practice the operation becomes pretty quick, and as long as you can do it in the span of time that you need to be braking, it's not preventing you from doing anything else. As noted earlier, at this point it's so automatic that I have a hard time not double-clutching.

For autocross, it's definitely more of an issue: The smaller spread of speeds means the time spent braking is much shorter. Regardless of downshift technique, there are definitely times I'm faster bouncing it off the rev limiter for a moment rather than trying to get in an upshift and a downshift.

The lower gears are also much less forgiving about rev-matching than the higher gears, just because of the torque multiplication on engine braking or crank momentum. Trying to match revs to first gear in the time it takes to slow from 25 to 10 is hard...

Hocrest
Hocrest HalfDork
8/19/11 3:33 p.m.
N Sperlo wrote: Twister is my favorite. Do you have any ideas how many bloopers and non-truths are in THAT?!

Like the rust free J-10.

jonny330
jonny330 New Reader
8/20/11 8:15 a.m.
N Sperlo wrote:
pigeon wrote: You know, for a movie that's universally mocked, a whole lotta people here are able to quote and describe multiple bits of the movie...
Because everyone loves corny movies. Twister is my favorite. Do you have any ideas how many bloopers and non-truths are in THAT?!

I love twister the ride at universal orlando and that is as cheesy as the movie.

Streetwiseguy
Streetwiseguy Dork
8/20/11 8:20 a.m.
N Sperlo wrote:
pigeon wrote: You know, for a movie that's universally mocked, a whole lotta people here are able to quote and describe multiple bits of the movie...
Because everyone loves corny movies. Twister is my favorite. Do you have any ideas how many bloopers and non-truths are in THAT?!

All made worthwhile by Helens white shirts.

corytate
corytate Reader
8/20/11 9:40 a.m.

I double clutch the kia on the rare occurrences when I actually downshift to pass someone. I've been trying to behave on the road and not get any moving violations though. lol

CanadianTercel
CanadianTercel Reader
8/20/11 6:53 p.m.

I constantly double clutch when driving my tercel hard, mostly 1-2-3 shifts, as they have taken abuse, any car of mine I've done it as theyre all high mileage, the tercel has 622,000km and I assume the original 5spd! The 2nd gear syncros are tough..

bravenrace
bravenrace SuperDork
8/22/11 8:02 a.m.
oldsaw wrote: Heel-and-toe (with rev-matching) has always been the norm for every car and I've never had a problem/situation that dictated the double-pump technique.

This. I've put 250k on a few transmissions without synchro issues, so why bother?

Raze
Raze Dork
8/22/11 10:22 a.m.

I smell skanks. Why don't you girls just pack it up before I leave tread marks on your face?

Raze
Raze Dork
8/22/11 10:24 a.m.
joey48442 wrote: PS, I once beat up a guy with a pipe. Now hes a janitor. Joey

It was a wrench numb-nuts

LainfordExpress
LainfordExpress Reader
8/22/11 11:17 a.m.

I double clutch almost every time I downshift. Mostly because when my dad taught me to drive a manual he taught me to double clutch because his dad taught him to double clutch back when you had to, and my grandpa continued to double clutch even with sychros because that's the way he'd always done it, and it thought it sounded cool.

And one doesn't argue with what a man with no right arm that drove a pickup with three-on-the-tree thought was cool.

HiTempguy
HiTempguy Dork
8/22/11 11:47 a.m.

It really depends on what vehicle it is. The Subaru during DD'ing gets double clutched into 2nd gear, as those tend to go.

The proper way to get a Subaru 5 speed into 1st gear at race speeds (for something like a hairpin in rally) is to pendulum the car, and while the car is rotating around the apex double clutch quickly and pop it into 1st. BOOM, you are roaring out of the corner bouncing off the rev limiter with the fans screaming Best feeling when you get it right, because coming out of hairpins in 2nd sucksssssss!

Vigo
Vigo Dork
8/23/11 6:10 p.m.

Rev-matched downshifts are for not upsetting the chassis.

Double-clutched rev-matched downshifts are for not upsetting the tranny as well.

and as long as you can do it in the span of time that you need to be braking, it's not preventing you from doing anything else.

Short and sweet!

I do it in all my street cars because ive definitely got the time and definitely DONT want to replace any synchros ever. On my insight 5-4 is so close it doesnt need it, but most of my cars get it there too. I find it most useful when getting into 3rd on the highway, and getting into 1st at low speeds.

curtis73
curtis73 GRM+ Memberand Dork
8/23/11 6:34 p.m.
I may eventually work on double clutching the downshifts on my 98k mile E46 M3, but for now I need to work on heel-toe technique first.

Amen. the double clutching I've got down pat... heel toe for me usually makes me hit the rev limiter or spike the brakes. Even when I get it right, the RPMs are usually less matched than if I just downshift and I end up upsetting the balance anyway.

Practice, practice.

Scott Lear
Scott Lear Production Editor
8/24/11 12:33 p.m.

I had a buddy in Pittsburgh who thought "it's an amazing machine" was the funniest line in that whole movie...

Never not funny:

1 2

You'll need to log in to post.

Our Preferred Partners
s3hqQrXEktBpnOZ5fFM3JZ8GWOC69QsYjsgHhqFmQNR6SSoCCxiuWZbM6cp59P7J