When did the C7 get no-lift shift?
#41
Drifting
^^^^^ Why did you buy a Corvette? Seriously?
Last edited by bigsapper; 04-15-2017 at 05:58 PM. Reason: To add "Seriously?"
#42
It compels you to run the RPM basically right up to fuel cutoff - I doubt unless you are trying to "do this" that most people would run it that high. I don't have the interest to look up the graph - but is the torque as high at the edge of fuel cutoff or has it already peaked and started to decline? Same with horsepower. GM didn't make the car with "no lift shift" - they just designed the electronics so if you peg the throttle the engine won't grenade (and, admittedly, will stay out of fuel cutoff if properly engaged). To say this type of driving style doesn't damage the car is naive. It's like launch control - do that every time you start out and tell me it doesn't damage the car.
#43
Racer
Just sort of catching up here. First for those who don't believe this is a real feature on the C7, someone posted a download of the C7 ECM here:
https://www.corvetteforum.com/forums...post1587422225
Later in that thread, I got one of those cool toys and showed the difference between doing a no lift shift, and just letting it run into the rev limit. The main diff seems to be that the computer keeps the throttle at full for the NLS, and reduces it for the rev limit. I'm not sure how much this speeds up the shift, but it's clearly not just hitting the rev limit when you do a NLS.
https://www.corvetteforum.com/forums...post1587592805
Cheers,
Rusty
https://www.corvetteforum.com/forums...post1587422225
Later in that thread, I got one of those cool toys and showed the difference between doing a no lift shift, and just letting it run into the rev limit. The main diff seems to be that the computer keeps the throttle at full for the NLS, and reduces it for the rev limit. I'm not sure how much this speeds up the shift, but it's clearly not just hitting the rev limit when you do a NLS.
https://www.corvetteforum.com/forums...post1587592805
Cheers,
Rusty
#44
Just sort of catching up here. First for those who don't believe this is a real feature on the C7, someone posted a download of the C7 ECM here:
https://www.corvetteforum.com/forums...post1587422225
Later in that thread, I got one of those cool toys and showed the difference between doing a no lift shift, and just letting it run into the rev limit. The main diff seems to be that the computer keeps the throttle at full for the NLS, and reduces it for the rev limit. I'm not sure how much this speeds up the shift, but it's clearly not just hitting the rev limit when you do a NLS.
https://www.corvetteforum.com/forums...post1587592805
Cheers,
Rusty
https://www.corvetteforum.com/forums...post1587422225
Later in that thread, I got one of those cool toys and showed the difference between doing a no lift shift, and just letting it run into the rev limit. The main diff seems to be that the computer keeps the throttle at full for the NLS, and reduces it for the rev limit. I'm not sure how much this speeds up the shift, but it's clearly not just hitting the rev limit when you do a NLS.
https://www.corvetteforum.com/forums...post1587592805
Cheers,
Rusty
#45
Race Director
Member Since: Jul 2007
Location: Texas Hill Country
Posts: 10,763
Received 2,379 Likes
on
1,238 Posts
It compels you to run the RPM basically right up to fuel cutoff - I doubt unless you are trying to "do this" that most people would run it that high. I don't have the interest to look up the graph - but is the torque as high at the edge of fuel cutoff or has it already peaked and started to decline? Same with horsepower. GM didn't make the car with "no lift shift" - they just designed the electronics so if you peg the throttle the engine won't grenade (and, admittedly, will stay out of fuel cutoff if properly engaged). To say this type of driving style doesn't damage the car is naive. It's like launch control - do that every time you start out and tell me it doesn't damage the car.
The following users liked this post:
Boiler_81 (04-17-2017)
#46
Melting Slicks
If you pull back on the shifter (1-2 shift) and depress the clutch exactly the same time, lets say at 6400 rpm, the rpm holds till your power shift is complete in that split second.
#47
Melting Slicks
I just did it driving home from church. My church is out in the country so opportunities to have fun with your car. When I get time, I think I'm gonna make a Go Pro vid running 1 though 4 with no lift shift so people can see it. I've even used it while tracking. Works slick. You are not doing any more damage than if you were lifting off the throttle while speed shifting. The difference is you can seriously get the shift down to almost as fast as the Auto shifts. Instantly.
The following users liked this post:
pdiddy972 (08-08-2017)
#49
Race Director
Member Since: Jul 2007
Location: Texas Hill Country
Posts: 10,763
Received 2,379 Likes
on
1,238 Posts
#50
Race Director
Member Since: Jul 2007
Location: Texas Hill Country
Posts: 10,763
Received 2,379 Likes
on
1,238 Posts
I just did it driving home from church. My church is out in the country so opportunities to have fun with your car. When I get time, I think I'm gonna make a Go Pro vid running 1 though 4 with no lift shift so people can see it. I've even used it while tracking. Works slick. You are not doing any more damage than if you were lifting off the throttle while speed shifting. The difference is you can seriously get the shift down to almost as fast as the Auto shifts. Instantly.
#51
Once again, wrong. What you are referring to was not built into the car and controlled by the computer. What you are referring to amounts to abuse of the drivetrain. Why is it so hard to understand?
#52
Melting Slicks
About what I was figuring. Figured a 10th of a second is possible. True about missing shifts, but the auto doesn't give you the same satisfaction as when you're nailing shifts left and right. Miss a 2-3 and you lose about a car length to the A8 if you can pull off a save quick enough.
#54
Race Director
Member Since: Jul 2007
Location: Texas Hill Country
Posts: 10,763
Received 2,379 Likes
on
1,238 Posts
I have powershifted the ***** off everything from 67 Novas (even broke the shifter out of the transmission twice) to 80's Z28s to 90s SS' to C5Z's to C6Z's, late model Camaros to C7s, 125cc shifter karts, etc, etc.
Guess what, No Lift Shift is cool and works great.
The following 3 users liked this post by Higgs Boson:
#56
Race Director
I'm an old school guy - probably been driving longer than you have.
I learned to drive in the late '50's on my dad's '57 VW. It didn't have a tach, but had roman numerals on the speedo where the top of each gear redlined. The "I" was at 15mph. The top three gears were synchro, but 1st gear was not. Anything under 15mph and I could downshift into 1st by double clutching that sucker and "snick" it smooth as could be into 1st gear.
My wife and I never had a vehicle with an automatic transmission until I got my F150 in 2013 to tow my Vette to track events. We still have our '70 442 with a Muncie 4-speed that we got new when I graduated from college - and yes, I could power-shift the crap out of it!!! I don't drive it too hard anymore - I save that for the Vette!
So....we're both old school!!!!
However.....we seem to be very different in our acceptance on "nannies"!! I not only accept them, I EMBRACE them, and use them every time I drive my Vette!!!
I LUV stuff like Traction Control, and like Active Handling that might help save my a$$ in a bad situation.
I think the PTM and the eLSD in my C7 Z06 are AMAZING!!!
I've been heel-n-toe downshifting ever since the early days in the '57 Beetle, and for decades I've been rev matching every downshift on my Harleys (and I downshift every car and motorcycle I drive every time I'm slowing down). BUT I THINK AUTO REV MATCHING IN MY C7 IS ONE REALLY COOL FEATURE and it's on every time I start the car!!!!!
Same for Launch Control (I never use it) and the No-Lift-Shift feature. I only use NLS occasionally on roadcourses, but overall, even though I'm an old fart and old school, I really like and use the nannies!!
.
I learned to drive in the late '50's on my dad's '57 VW. It didn't have a tach, but had roman numerals on the speedo where the top of each gear redlined. The "I" was at 15mph. The top three gears were synchro, but 1st gear was not. Anything under 15mph and I could downshift into 1st by double clutching that sucker and "snick" it smooth as could be into 1st gear.
My wife and I never had a vehicle with an automatic transmission until I got my F150 in 2013 to tow my Vette to track events. We still have our '70 442 with a Muncie 4-speed that we got new when I graduated from college - and yes, I could power-shift the crap out of it!!! I don't drive it too hard anymore - I save that for the Vette!
So....we're both old school!!!!
However.....we seem to be very different in our acceptance on "nannies"!! I not only accept them, I EMBRACE them, and use them every time I drive my Vette!!!
I LUV stuff like Traction Control, and like Active Handling that might help save my a$$ in a bad situation.
I think the PTM and the eLSD in my C7 Z06 are AMAZING!!!
I've been heel-n-toe downshifting ever since the early days in the '57 Beetle, and for decades I've been rev matching every downshift on my Harleys (and I downshift every car and motorcycle I drive every time I'm slowing down). BUT I THINK AUTO REV MATCHING IN MY C7 IS ONE REALLY COOL FEATURE and it's on every time I start the car!!!!!
Same for Launch Control (I never use it) and the No-Lift-Shift feature. I only use NLS occasionally on roadcourses, but overall, even though I'm an old fart and old school, I really like and use the nannies!!
.
#59
Drifting
I started out with a 68 Chevy 1/2 ton pickup as my first vehicle. It was a three speed manual, non assisted brakes and steering. My Dad told me that when I learned to drive it, I could drive anything.
Those who equate the Corvette NLS with the old school power shift don't understand the underlying technology which supports it. I think the technology is amazing.
A one owner 70 442 is very cool. The first car I bought with my own money was a used 70 W-30 442 in 1978. I still have it as well.
Those who equate the Corvette NLS with the old school power shift don't understand the underlying technology which supports it. I think the technology is amazing.
A one owner 70 442 is very cool. The first car I bought with my own money was a used 70 W-30 442 in 1978. I still have it as well.
I'm an old school guy - probably been driving longer than you have.
I learned to drive in the late '50's on my dad's '57 VW. It didn't have a tach, but had roman numerals on the speedo where the top of each gear redlined. The "I" was at 15mph. The top three gears were synchro, but 1st gear was not. Anything under 15mph and I could downshift into 1st by double clutching that sucker and "snick" it smooth as could be into 1st gear.
My wife and I never had a vehicle with an automatic transmission until I got my F150 in 2013 to tow my Vette to track events. We still have our '70 442 with a Muncie 4-speed that we got new when I graduated from college - and yes, I could power-shift the crap out of it!!! I don't drive it too hard anymore - I save that for the Vette!
So....we're both old school!!!!
However.....we seem to be very different in our acceptance on "nannies"!! I not only accept them, I EMBRACE them, and use them every time I drive my Vette!!!
I LUV stuff like Traction Control, and like Active Handling that might help save my a$$ in a bad situation.
I think the PTM and the eLSD in my C7 Z06 are AMAZING!!!
I've been heel-n-toe downshifting ever since the early days in the '57 Beetle, and for decades I've been rev matching every downshift on my Harleys (and I downshift every car and motorcycle I drive every time I'm slowing down). BUT I THINK AUTO REV MATCHING IN MY C7 IS ONE REALLY COOL FEATURE and it's on every time I start the car!!!!!
Same for Launch Control (I never use it) and the No-Lift-Shift feature. I only use NLS occasionally on roadcourses, but overall, even though I'm an old fart and old school, I really like and use the nannies!!
.
I learned to drive in the late '50's on my dad's '57 VW. It didn't have a tach, but had roman numerals on the speedo where the top of each gear redlined. The "I" was at 15mph. The top three gears were synchro, but 1st gear was not. Anything under 15mph and I could downshift into 1st by double clutching that sucker and "snick" it smooth as could be into 1st gear.
My wife and I never had a vehicle with an automatic transmission until I got my F150 in 2013 to tow my Vette to track events. We still have our '70 442 with a Muncie 4-speed that we got new when I graduated from college - and yes, I could power-shift the crap out of it!!! I don't drive it too hard anymore - I save that for the Vette!
So....we're both old school!!!!
However.....we seem to be very different in our acceptance on "nannies"!! I not only accept them, I EMBRACE them, and use them every time I drive my Vette!!!
I LUV stuff like Traction Control, and like Active Handling that might help save my a$$ in a bad situation.
I think the PTM and the eLSD in my C7 Z06 are AMAZING!!!
I've been heel-n-toe downshifting ever since the early days in the '57 Beetle, and for decades I've been rev matching every downshift on my Harleys (and I downshift every car and motorcycle I drive every time I'm slowing down). BUT I THINK AUTO REV MATCHING IN MY C7 IS ONE REALLY COOL FEATURE and it's on every time I start the car!!!!!
Same for Launch Control (I never use it) and the No-Lift-Shift feature. I only use NLS occasionally on roadcourses, but overall, even though I'm an old fart and old school, I really like and use the nannies!!
.
#60
Race Director
Mine isn't a W-30. For the '70 model year you couldn't order air conditioning in the manual transmission W-30 - only the auto trans model.
I wanted a 4-speed and A/C, so had to settle for the base 442. It cost us $4,059.01
It's still got the original Rally Red paint, but it's time for me to get the interior redone.
.
The following users liked this post:
Boiler_81 (04-16-2017)