C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

"Clutchless Shifts".....???

Thread Tools
 
Search this Thread
 
Old Nov 11, 2001 | 10:43 PM
  #1  
Sam Lin's Avatar
Sam Lin
Thread Starter
Melting Slicks
20 Year Member
 
Joined: Jul 2000
Posts: 2,521
Likes: 3
From: Gilbert, AZ, USA
Default Re: "Clutchless Shifts".....??? (dsk888)

It takes quite a bit of experience driving a stick shift as well as a good feel for the car. Simply, it's shifting without using the clutch at all. All you have to do is match the engine RPMs to the wheels exactly, then the synchros will mesh together smoothly. Some racers know this technique, as well as many truckers. Get it down, and the only time you need the clutch is launching from a standstill. :D

Sam
Reply
Old Nov 11, 2001 | 11:46 PM
  #2  
chuckster's Avatar
chuckster
Race Director
20 Year Member
 
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Default Re: "Clutchless Shifts".....??? (dsk888)

I use to do it on my old Civic all the time :D
Reply
Old Nov 12, 2001 | 12:41 AM
  #3  
MelloYellow's Avatar
MelloYellow
Le Mans Master
 
Joined: Apr 2000
Posts: 7,248
Likes: 0
Default Re: "Clutchless Shifts".....???

Even if you learn this technique, isn't this harder on the synchros? Also wouldn't you typically have to shift slower to get the 'feel' and rpm's perfect? Speed shifting sounds faster.
Reply
Old Nov 12, 2001 | 01:32 AM
  #4  
Mike99C5HT's Avatar
Mike99C5HT
Melting Slicks
10 Year Member
 
Joined: May 2000
Posts: 2,209
Likes: 0
From: Pittsburgh PA
Default Re: "Clutchless Shifts".....??? (MelloYellow)

Dupe :D ...
http://forums.corvetteforum.com/zerothread?id=179906
Reply
Old Nov 12, 2001 | 01:41 AM
  #5  
rwj383's Avatar
rwj383
Melting Slicks
15 Year Member
 
Joined: Jan 2001
Posts: 2,635
Likes: 2
From: Aloha, Oregon
Default Re: "Clutchless Shifts".....??? (dsk888)

it's not going to harm the clutch in any fashion since the clutch will be already fully engaged. the damage would happen to the slush box.
Reply
Old Nov 12, 2001 | 11:36 AM
  #6  
Blocktrdr's Avatar
Blocktrdr
Burning Brakes
Supporting Lifetime Gold
20 Year Member
 
Joined: Aug 2000
Posts: 802
Likes: 0
From: Boca Raton, FL
Default Re: "Clutchless Shifts".....??? (dsk888)

It's probably faster on the zo6 since the ratios are tighter, but on my coupe it takes a bit too long for the revs to drop enough for the next gear. I can actually shift faster with a bit of clutch. I believe perhaps the PCM could be programmed to speed up the rpm drop but haven't tried this. The tranny doesn't grind a bit. Just preload the shifter and let off the throttle. As soon as the next gear engages again hit the throttle again.
Reply
Old Nov 12, 2001 | 03:13 PM
  #7  
MDT's Avatar
MDT
Melting Slicks
 
Joined: Aug 2000
Posts: 2,248
Likes: 1
From: Newland US
Default Re: "Clutchless Shifts".....??? (dsk888)

I taught my son to drive on a 4 speed stick when he was 9 years old. The heavy duty clutch took too much effort for him. He had a natural ear and feel and soon mastered the upshift as well as the downshift without use of the clutch.

To do this manuever with no damage....it has to be done slowly....if you don't do the rev matching properly, then you will put stress on the synchros.

Yes, truckers do the clutchless shift routinely.

Good luck.
Mark
Reply
Old Nov 12, 2001 | 03:23 PM
  #8  
C5 Frank's Avatar
C5 Frank
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 1999
Posts: 5,497
Likes: 55
From: Jupiter, FL
Default Re: "Clutchless Shifts".....??? (dsk888)

Yes nearly any car with a stick can be shifted w/o the clutch.... but to be done right it is something that requires a touch and feel for the car. It would not be something you could do at WOT during a dragrace! A power-on upshift w/ clutch ..yes.... w/o the clutch I say impossible!!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old Nov 12, 2001 | 07:34 PM
  #9  
Dave00C5's Avatar
Dave00C5
Le Mans Master
20 Year Member
 
Joined: Jan 2000
Posts: 6,725
Likes: 0
From: South Bend IN
Default Re: "Clutchless Shifts".....??? (dsk888)

I do this every day in my kenworth! You have to find the sweet spot in relationship to your rpm. You cannot do this at WOT.
Reply
Old Nov 13, 2001 | 08:04 AM
  #10  
Rx7Rob's Avatar
Rx7Rob
Drifting
25 Year Member
Active Streak: 30 Days
Liked
Loved
 
Joined: Mar 2000
Posts: 1,956
Likes: 135
From: Maryland
Default Re: "Clutchless Shifts".....??? (dsk888)

Shoot, I hardly ever use the clutch....on the CR500 :-) That is unless I want to go instantly into warp speed and have my butt grow teeth to try and hold me on the bike. Then all I have to do is come out of a turn, go WOT and fan the clutch. Talk about instant adrenaline overload.

Drive the POS-B2200 the same way :-). The vette gets driven with full use of the clutch.
Reply

Get notified of new replies

To "Clutchless Shifts".....???





All times are GMT -4. The time now is 10:20 AM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE