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

lightning · 01-21-2013, 08:14 AM

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

CarJunkie · 01-21-2013, 10:59 AM

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!

MDORPHN · 01-21-2013, 11:36 AM

Quote:

Originally Posted by lightning

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

bdaddylo · 01-21-2013, 03:42 PM

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

P7X · 01-21-2013, 04:06 PM

Not sure how doable it is in a performance oriented car but did it all the time in an old ford ranger.

ozinaldo · 01-21-2013, 06:48 PM

Quote:

Originally Posted by P7X

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

Artemis · 01-21-2013, 07:20 PM

It's like mushrooms: they are all eatable by man, some only once.

ESC OFF · 01-26-2013, 08:03 PM

With a good gearbox it's very simple, not recommended, but simple.

e82m_van · 01-27-2013, 02:59 PM

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

Sauce · 01-27-2013, 03:05 PM

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

01-21-2013, 08:14 AM	#1
lightning Private First Class Drives: BMW 1M AW Join Date: Sep 2009 Location: Singapore Posts: 177 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
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01-21-2013, 03:42 PM	#4
bdaddylo Captain Drives: 2011 E82 1M Join Date: Dec 2010 Location: Houston, TX Posts: 823 iTrader: (0) Garage List 2005 Acura MDX [0.00] 2011 BMW 1 Series M ... [0.00]	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 1 Series M Coupe/VO/Convenience Pkg/Premium Pkg/Harman Kardon/AFE Scoops/Berk Midpipes/P3 V2/BMS Catch Can/CF Rear Deck Spoiler/3M Clear Bra/3M Crystalline/Homelink/M Performance Steering Wheel

01-21-2013, 04:06 PM	#5
P7X Second Lieutenant Drives: E82 BMW 135i AW Join Date: Feb 2012 Location: Ottawa Posts: 232 iTrader: (0)	Not sure how doable it is in a performance oriented car but did it all the time in an old ford ranger. __________________

01-21-2013, 07:20 PM	#7
Artemis Colonel Drives: 1M (VO) Join Date: Jun 2011 Location: Belgium Posts: 2,275 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)

01-26-2013, 08:03 PM	#8
ESC OFF Major Drives: 1M (AW) & CaymanS Join Date: Oct 2009 Location: Chicago Posts: 1,017 iTrader: (0)	With a good gearbox it's very simple, not recommended, but simple. __________________ The faster you go, the better it feels

01-21-2013, 10:59 AM	#2
CarJunkie Lieutenant Drives: Valencia Orange 1-Series M Join Date: Nov 2011 Location: Tri-Cities, Washington Posts: 428 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!

01-27-2013, 02:59 PM	#9
e82m_van Private First Class Drives: AW 1m Join Date: Mar 2012 Location: Vancouver Posts: 146 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

01-27-2013, 03:05 PM	#10
Sauce Lieutenant Drives: Montego 135 Join Date: Aug 2011 Location: Studio City Posts: 515 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.

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