C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Slightly bumpy shifting?

Thread Tools
 
Search this Thread
 
Old Aug 16, 2014 | 05:59 PM
  #1  
Johniorio4's Avatar
Johniorio4
Thread Starter
Instructor
 
Joined: Jun 2014
Posts: 154
Likes: 8
From: Greensboro NC
Default Slightly bumpy shifting?

Hey guys I've always driven auto in the past, but my last two cars (e92 m3, camaro ss) and my current c7 have been manuals. Everyone I've ever talked to or driven with seems to think it's perfectly normal to be slightly jerky/bumpy when shifting (especially 1-2). I My question is: is this normal for a vette, and is it ok? My previous cars seemed a little easier to be smooth in, albeit neither was even close to as powerful. Thanks guys!

Last edited by Johniorio4; Jul 14, 2015 at 12:35 AM.
Reply
Old Aug 16, 2014 | 06:18 PM
  #2  
Kracka's Avatar
Kracka
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2014
Posts: 10,709
Likes: 7,099
From: Fulshear, TX
Default

Practice makes perfect, the more you drive it and learn the car the smoother you'll become
Reply
Old Aug 16, 2014 | 08:27 PM
  #3  
C7HOORAY's Avatar
C7HOORAY
Racer
Supporting Lifetime
 
Joined: May 2014
Posts: 414
Likes: 95
Default

Originally Posted by Kracka
Practice makes perfect, the more you drive it and learn the car the smoother you'll become
Truth is, C7s are not smooth, easy to drive manual cars at all....Every time I go from driving the C7 to our Audi A5, it is like night and day. By comparison, the Audi is light, smooth, and precise. The Corvette gearbox and clutch interplay is clunky, imprecise and downright crude by comparison. I understand the fact that the Vette has so much torque to manage, and that the tranny is actually NOT bolted to the engine, but c'mon, this is 2014 and GM can do better with their "World Class" halo car.....

Mind you, the "manly man" transmission does not bother ME at all...I actually enjoy it - reminds me of the Z28s I have had in the past, but today's consumer's expect more refinement.
Reply
Old Aug 16, 2014 | 08:29 PM
  #4  
thrilled's Avatar
thrilled
Safety Car
10 Year Member
Liked
Loved
 
Joined: Mar 2014
Posts: 4,482
Likes: 668
From: Kilmarnock Va
Default

Originally Posted by Kracka
Practice makes perfect, the more you drive it and learn the car the smoother you'll become
I agree.Do more city driving.Alot of traffic driving.Stay off the interstates as much as you can
Reply
Old Aug 16, 2014 | 09:32 PM
  #5  
C7Joy's Avatar
C7Joy
Race Director
10 Year Member
 
Joined: Jul 2010
Posts: 10,548
Likes: 176
From: Upstate NY
Default

It will get soother in time, don't worry. You will be surprised how all this shifting stuff comes together in time, especially when you don't think about it. As you get used to shift, clutch release and throttle control your shifts will become almost seamless -- up AND down.
Reply
Old Aug 16, 2014 | 09:35 PM
  #6  
Bill Dearborn's Avatar
Bill Dearborn
Tech Contributor
25 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 1999
Posts: 41,013
Likes: 9,775
From: Charlotte, NC (formerly Endicott, NY)
Default

Originally Posted by C7HOORAY
Truth is, C7s are not smooth, easy to drive manual cars at all....Every time I go from driving the C7 to our Audi A5, it is like night and day. By comparison, the Audi is light, smooth, and precise. The Corvette gearbox and clutch interplay is clunky, imprecise and downright crude by comparison. I understand the fact that the Vette has so much torque to manage, and that the tranny is actually NOT bolted to the engine, but c'mon, this is 2014 and GM can do better with their "World Class" halo car.....

Mind you, the "manly man" transmission does not bother ME at all...I actually enjoy it - reminds me of the Z28s I have had in the past, but today's consumer's expect more refinement.
I see this so called smoothness as indication of weakness in the Audi's design not an example of World Class design. If the Audi had an engine with the same type of low end torque it would be just as difficult to get a smooth shift.

The secret to a smooth shift on any high torque Domestic engine since the 60s is to keep the revs from dropping and slip the clutch a little at clutch release. If you let the rpms drop and let the clutch out the engine will be rotating slower than it should for the speed the car is going and you will get a jerky/bumpy shift. Unlike cars with low torque engines the big engine isn't sped up as easily and you get the jerk/bump. If you keep the rpms up a little you can hit the sweet spot and make a very smooth shift but most times you have to have a clear road in front of you. Keeping the revs the same as they were when you pushed in the clutch can jerk the car forward on clutch release but if you slip the clutch a little you can smooth that out. Once you get familiar with the car and the engine characteristics you can get the rpm to match a little better and reduce the clutch slippage. A very long time ago I went from a 55 Chevy with a 283 installed to a brand new 65 Olds 442 with a 400 ci engine. The 55 with a 3 speed transmission was always easy to get a smooth shift but the 442 with a 4 speed was really difficult at first, first the 2nd gear ratio was lower and the low end torque was much higher. Until I drove the car for close to a 1000 miles I had trouble getting that 1-2 shift down smoothly.

Bill
Reply
Old Aug 16, 2014 | 10:29 PM
  #7  
zbrett's Avatar
zbrett
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 1,205
Likes: 85
From: Winfield, IL
Default

I have the same problem, especially after getting the car out of winter storage. I also have trouble jumping to and from my Civic Si to my Vette (my Civic Si is my DD). As already mentioned, practice makes perfect.
Reply
Old Aug 16, 2014 | 10:37 PM
  #8  
Dr. ice's Avatar
Dr. ice
Melting Slicks
 
Joined: Dec 2013
Posts: 3,231
Likes: 958
From: Missouri
Default

Originally Posted by Johniorio4
Hey guys I've always driven auto in the past, but my last two cars (e92 m3) and my current c7 have been manuals. Everyone I've ever talked to or driven with seems to think it's perfectly normal to be slightly jerky/bumpy when shifting (especially 1-2). I've gotten to a point where I'm pretty solid, but most of the time not like an automatic. My question is: is this normal, and is it ok? I'm not bucking the car like a wild stallion, but most of the time I'm not perfect. What do you guys think?
Turn on Rev Match.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-1

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-4

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-5

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-6

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old Aug 16, 2014 | 10:43 PM
  #9  
Divexxtreme's Avatar
Divexxtreme
Pro
10 Year Member
 
Joined: Jan 2005
Posts: 501
Likes: 0
Default

Originally Posted by Bill Dearborn
I see this so called smoothness as indication of weakness in the Audi's design not an example of World Class design. If the Audi had an engine with the same type of low end torque it would be just as difficult to get a smooth shift.

The secret to a smooth shift on any high torque Domestic engine since the 60s is to keep the revs from dropping and slip the clutch a little at clutch release. If you let the rpms drop and let the clutch out the engine will be rotating slower than it should for the speed the car is going and you will get a jerky/bumpy shift. Unlike cars with low torque engines the big engine isn't sped up as easily and you get the jerk/bump. If you keep the rpms up a little you can hit the sweet spot and make a very smooth shift but most times you have to have a clear road in front of you. Keeping the revs the same as they were when you pushed in the clutch can jerk the car forward on clutch release but if you slip the clutch a little you can smooth that out. Once you get familiar with the car and the engine characteristics you can get the rpm to match a little better and reduce the clutch slippage. A very long time ago I went from a 55 Chevy with a 283 installed to a brand new 65 Olds 442 with a 400 ci engine. The 55 with a 3 speed transmission was always easy to get a smooth shift but the 442 with a 4 speed was really difficult at first, first the 2nd gear ratio was lower and the low end torque was much higher. Until I drove the car for close to a 1000 miles I had trouble getting that 1-2 shift down smoothly.

Bill

Totally incorrect. The Gen V Viper (2013-2014) has one of the smoothest and most precise shifters I've ever felt in a sports car, and it makes FAR more torque everywhere than the C7 does.

The C7 shifter sucks. Plain and simple.
Reply
Old Aug 17, 2014 | 12:15 AM
  #10  
Johniorio4's Avatar
Johniorio4
Thread Starter
Instructor
 
Joined: Jun 2014
Posts: 154
Likes: 8
From: Greensboro NC
Default

Originally Posted by Dr. ice
Turn on Rev Match.
Automatic Rev matching causes the 1-2 upshift to rev hang, making smooth shifts nearly impossible.
Reply
Old Aug 17, 2014 | 08:23 AM
  #11  
thrilled's Avatar
thrilled
Safety Car
10 Year Member
Liked
Loved
 
Joined: Mar 2014
Posts: 4,482
Likes: 668
From: Kilmarnock Va
Default

Originally Posted by Divexxtreme
Totally incorrect. The Gen V Viper (2013-2014) has one of the smoothest and most precise shifters I've ever felt in a sports car, and it makes FAR more torque everywhere than the C7 does.

The C7 shifter sucks. Plain and simple.
And I feel just the opposite.I like the C7 shifter.If I get lazy I might miss A gear because my food might be lazy with the clutch.
But when I'm in my frame of mine that I want to go,it shifts fantastic for me.Now if I need to downshift A couple of gears I need to pay strict attention.
Reply
Old Aug 17, 2014 | 03:03 PM
  #12  
Bill Dearborn's Avatar
Bill Dearborn
Tech Contributor
25 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 1999
Posts: 41,013
Likes: 9,775
From: Charlotte, NC (formerly Endicott, NY)
Default

Originally Posted by Divexxtreme
Totally incorrect. The Gen V Viper (2013-2014) has one of the smoothest and most precise shifters I've ever felt in a sports car, and it makes FAR more torque everywhere than the C7 does.

The C7 shifter sucks. Plain and simple.
What the people in this thread are talking about hasn't got anything to do with how the shifter works or doesn't work. Engine torque has a lot to do with how smooth the actual shift is from start to end. Moving the shifter is only part of that action and definitely not the end where you find out how smooth the shift was when you release the clutch.

Bill
Reply
Old Aug 17, 2014 | 03:32 PM
  #13  
AORoads's Avatar
AORoads
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Default

I'm surprised no one has mentioned skip-shift, the fuel-saving measure built in to the 1-2 shift. As OP must know, it "skips" 2, 3 and goes directly to 4. If it's anything like the C6, you can go 1-3. But short of that, you're either shifting at a relatively higher rpm or skipping gears. And yes, torque, power and clutch make it a matter of practice, imo, as was said in Post 2*. Don't feel bad, just keep at it.

* You'd be surprised how easy it is to jump from your C7 to a manual trans, lesser-powered car and shift very well and smoothly, like a VW or Corolla, or Civic. Seriously.
Reply
Old Aug 17, 2014 | 03:36 PM
  #14  
thrilled's Avatar
thrilled
Safety Car
10 Year Member
Liked
Loved
 
Joined: Mar 2014
Posts: 4,482
Likes: 668
From: Kilmarnock Va
Default

Originally Posted by AORoads
I'm surprised no one has mentioned skip-shift, the fuel-saving measure built in to the 1-2 shift. As OP must know, it "skips" 2, 3 and goes directly to 4. If it's anything like the C6, you can go 1-3. But short of that, you're either shifting at a relatively higher rpm or skipping gears. And yes, torque, power and clutch make it a matter of practice, imo, as was said in Post 2*. Don't feel bad, just keep at it.

* You'd be surprised how easy it is to jump from your C7 to a manual trans, lesser-powered car and shift very well and smoothly, like a VW or Corolla, or Civic. Seriously.
I never skip shift.I use all 7 of em.Same with downshifting.Thats one of the reasons I bought the C7.I shift often.
Reply
Old Aug 17, 2014 | 03:44 PM
  #15  
Johniorio4's Avatar
Johniorio4
Thread Starter
Instructor
 
Joined: Jun 2014
Posts: 154
Likes: 8
From: Greensboro NC
Default

Originally Posted by AORoads
I'm surprised no one has mentioned skip-shift, the fuel-saving measure built in to the 1-2 shift. As OP must know, it "skips" 2, 3 and goes directly to 4. If it's anything like the C6, you can go 1-3. But short of that, you're either shifting at a relatively higher rpm or skipping gears. And yes, torque, power and clutch make it a matter of practice, imo, as was said in Post 2*. Don't feel bad, just keep at it.

* You'd be surprised how easy it is to jump from your C7 to a manual trans, lesser-powered car and shift very well and smoothly, like a VW or Corolla, or Civic. Seriously.
I have a CAGS delete installed, so no skip shifting for me no matter what rpm I shift at!
Reply
Old Aug 17, 2014 | 03:49 PM
  #16  
Dunga's Avatar
Dunga
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2014
Posts: 373
Likes: 46
From: Minnesota
Default

This is my first stick car. I'd driven stick occasionally in the past but never owned one. I guess I have been getting better almost two months after picking the car up. I find that rev match works (mostly ?) on downshifts, blipping the throttle but while the launch of the car is getting better, I still feel like I suck at 1-2 change.

I've experimented with multiple shift points but was wondering how you guys do it. While not 100% consistent, I find that if I don't shift until the mid 20 mphs (is that 3,500 rpm range?) the shift can be smooth as shifting 6-7. But it doesn't always work which makes me super timid with my left foot releasing the clutch in 2nd at around the engagement point.

What do you all think?
Reply
Old Aug 17, 2014 | 04:02 PM
  #17  
-CM-'s Avatar
-CM-
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2009
Posts: 2,867
Likes: 66
From: . Wyoming .
Default

OP, you don't say how many miles are on your car, but it took several hundred miles for my M7 to lose the notchiness. And it took me a good while to get used to the clutch. I've driven manual transmissions for years, and this one is the toughest to manage. It's also the funnest.
Reply

Get notified of new replies

To Slightly bumpy shifting?

Old Aug 17, 2014 | 04:02 PM
  #18  
thrilled's Avatar
thrilled
Safety Car
10 Year Member
Liked
Loved
 
Joined: Mar 2014
Posts: 4,482
Likes: 668
From: Kilmarnock Va
Default

Just practice.Go to A city during rush hour.If nothing else go to A a back road and practice going from 1st to 2nd.stop and do it again.Just do it over And over
Reply
Old Aug 17, 2014 | 04:05 PM
  #19  
JDM111er's Avatar
JDM111er
Pro
 
Joined: Jan 2014
Posts: 708
Likes: 51
From: Huntersville, North Carolina
Default

Originally Posted by Dunga
This is my first stick car. I'd driven stick occasionally in the past but never owned one. I guess I have been getting better almost two months after picking the car up. I find that rev match works (mostly ?) on downshifts, blipping the throttle but while the launch of the car is getting better, I still feel like I suck at 1-2 change.

I've experimented with multiple shift points but was wondering how you guys do it. While not 100% consistent, I find that if I don't shift until the mid 20 mphs (is that 3,500 rpm range?) the shift can be smooth as shifting 6-7. But it doesn't always work which makes me super timid with my left foot releasing the clutch in 2nd at around the engagement point.

What do you all think?
I've found it challenging to find the sweat shift spots between 1,2 and 3. I shift much quicker and do it based on sound rather than an RPM range.

Last edited by JDM111er; Aug 17, 2014 at 04:08 PM.
Reply
Old Aug 17, 2014 | 04:24 PM
  #20  
Divexxtreme's Avatar
Divexxtreme
Pro
10 Year Member
 
Joined: Jan 2005
Posts: 501
Likes: 0
Default

Originally Posted by Bill Dearborn
What the people in this thread are talking about hasn't got anything to do with how the shifter works or doesn't work. Engine torque has a lot to do with how smooth the actual shift is from start to end. Moving the shifter is only part of that action and definitely not the end where you find out how smooth the shift was when you release the clutch.

Bill
I guess we'll have to agree to disagree.

It doesn't matter what characteristic you bring up, the C7 shifter is inferior to that of the Viper in every single way possible, even though the Viper makes far more torque everywhere in the curve, which counters your earlier argument. It's notchy, the throws are far too long, it has a rubbery feel, and it's sometimes tricky to find the right gear (just like my C6 Z06 shifter was). What you are talking about is a function of low-end torque and clutch engagement, which the C7 does quite well. However, many people in this thread are talking specifically about 'shift feel' and 'shift engagment'. I love the C7, but the shifter is horrible.

The Viper's is better, the 996 and 997 Porsche's are better, and the GT500's is better.

I can nail gears in pretty much anything (see vid), but this shifter sucks.

https://www.youtube.com/watch?v=drmd...ature=youtu.be

Last edited by Divexxtreme; Aug 17, 2014 at 04:32 PM.
Reply



All times are GMT -4. The time now is 12:30 PM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE