BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      01-21-2013, 08:14 AM   #1
lightning
Second Lieutenant
10
Rep
220
Posts

 
Drives: BMW 1M AW
Join Date: Sep 2009
Location: Singapore

iTrader: (0)

Perfect shifting

Hi guys,

I've been doing some research about Aryton Senna and some other pro drivers and I heard that they can up shift and down shift a manual car w/o using the clutch. It's called "perfect shift".

Anyone tried it b4? After reading up a little, it seems like you would need to match the engine speed w the gearbox speed.. Anyway it's just for discussion ans information purposes before I get pelted w stones
Appreciate 0
      01-21-2013, 10:59 AM   #2
CarJunkie
Lieutenant
7
Rep
555
Posts

 
Drives: Valencia Orange 1-Series M
Join Date: Nov 2011
Location: Tri-Cities, Washington

iTrader: (0)

I used to upshift without the clutch in my RX-8 occasionally after reading about that and it was surprisingly easy. I never dared to to downshifts that way. In the RX-8, the shifter would easily pop out of gear with gentle input once I lifted off the throttle and would then pop right into the next gear as soon as the revs had fallen enough to match. It was pretty cool. I played around with it in normal driving, but never on the track and never accelerating fully. That is also a low torque car.

I think you would be begging to break something in the 1M if you did it under hard acceleration. I haven't tried it in the 1M because the shifter seems to ask for a little more precision, especially on the 1-2. I have also had about 3 occasions where 3rd gear ground on me, apparently from lifting the clutch a slit second too soon, before the gears were fully engaged. The funny thing is that it has never happened when shifting fast or accelerating fast, always when I am driving slowly and just being smooth (or not!)

Ayrton Senna (God bless him) didn't have to pay for anything he broke!
Appreciate 0
      01-21-2013, 11:36 AM   #3
MDORPHN
Colonel
41
Rep
2,544
Posts

 
Drives: AW 1M
Join Date: Oct 2010
Location: Wash, DC

iTrader: (0)

Quote:
Originally Posted by lightning View Post
Hi guys,

I've been doing some research about Aryton Senna and some other pro drivers and I heard that they can up shift and down shift a manual car w/o using the clutch. It's called "perfect shift".

Anyone tried it b4? After reading up a little, it seems like you would need to match the engine speed w the gearbox speed.. Anyway it's just for discussion ans information purposes before I get pelted w stones
More commonly called "speed shifting."

My advice -- don't do it.

Neil
Appreciate 0
      01-21-2013, 03:42 PM   #4
bdaddylo
Major
bdaddylo's Avatar
United_States
17
Rep
1,134
Posts

 
Drives: 2011 E90 M3 ZCP
Join Date: Dec 2010
Location: Houston, TX

iTrader: (2)

Garage List
Car and Driver

Below is the article from Car and Driver on how to drive a stick without a clutch. I'll save this experiment for the next time I rent a car in Europe.


http://www.caranddriver.com/features...thout-a-clutch
__________________
_______________________
2011 E90 M3 ZCP/AW/Ohlins R&T
Appreciate 0
      01-21-2013, 04:06 PM   #5
P7X
Lieutenant
P7X's Avatar
Canada
4
Rep
414
Posts

 
Drives: N54 BMW 135i
Join Date: Feb 2012
Location: Ottawa, Canada

iTrader: (0)

Not sure how doable it is in a performance oriented car but did it all the time in an old ford ranger.
__________________
Appreciate 0
      01-21-2013, 06:48 PM   #6
ozinaldo
Brigadier General
ozinaldo's Avatar
Portugal
46
Rep
3,053
Posts

 
Drives: 1M
Join Date: Jan 2011
Location: Lisbon, Portugal

iTrader: (0)

Quote:
Originally Posted by P7X View Post
Not sure how doable it is in a performance oriented car but did it all the time in an old ford ranger.
Guess this says it all
__________________
"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake.
Appreciate 0
      01-21-2013, 07:20 PM   #7
Artemis
Brigadier General
Artemis's Avatar
Belgium
97
Rep
3,356
Posts

 
Drives: 1M (VO)
Join Date: Jun 2011
Location: Belgium

iTrader: (0)

It's like mushrooms: they are all eatable by man, some only once.
__________________
“For ’tis the mind that makes the body rich” (W. Shakespeare, The Taming of the Shrew, Act 4, Scene 3)
Appreciate 0
      01-26-2013, 08:03 PM   #8
ESC OFF
Major
ESC OFF's Avatar
United_States
15
Rep
1,058
Posts

 
Drives: 1M (AW) & CaymanS
Join Date: Oct 2009
Location: Chicago

iTrader: (0)

With a good gearbox it's very simple, not recommended, but simple.
__________________
The faster you go, the better it feels
Appreciate 0
      01-27-2013, 02:59 PM   #9
e82m_van
Second Lieutenant
e82m_van's Avatar
6
Rep
211
Posts

 
Drives: AW 1m
Join Date: Mar 2012
Location: Vancouver

iTrader: (3)

I've done it on my 1m... accidently..
I was driving with something on my mind and shifted into 4th from 3rd without clutch and I was like "what just happened?"
Tried it again and.. lets just say don't do it hahahah
Appreciate 0
      01-27-2013, 03:05 PM   #10
Sauce
Lieutenant
Sauce's Avatar
10
Rep
528
Posts

 
Drives: Montego 135
Join Date: Aug 2011
Location: Studio City

iTrader: (1)

In a good gearbox it's easy, also easy to F up. I used to upshift and down shift w/o the clutch in my STi which had an awesome gearbox. In a BMW... Don't do it
__________________
KW V3's, Sparco Pro2000's, Vorshlag CP's, JB4, Heat Wrapped Raceland DP's, aFe stg. 2 Sealed Intake, Miro 111's, Hankook RS3's 225/245 (for now), Seibon M3 CF Hood, Turner Motorsports Alum. Radiator, Big Tom IC, BMW Performance bumper.

Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 04:44 PM.




1addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST