Raceboy51

why on earth you guys are trying to flat shift, it makes no sense. You are killing the clutch and flywheel by burning it to sheds. The only reason we have flat shifting is for racing in a sequential gear box. In a H pattern you just destroy the gearbox all the internals and risk transmission damage.

BEZ06

Yeah - I guess we should only drive to car shows and never exceed 2000rpm!!

Some of us like to run the car up to what it's really capable of doing - and what it's BUILT to be able to do!!!

Nothing wrong with those who just want to casually cruise around all the time, but nothing the matter either with those who enjoy turning the beast loose and running the car up toward its very capable limits!

.

Raceboy51

I guess you missed what I said, just because you dont flat shift doesnt mean you dont drive the car at 100%. Flat shifting a H is much slower than doing it normally. Only sequentials are made for flat shifting.

DAFFYDRUNK

That's pretty cool. I live a ways away and I have a vert unfortunately. Maybe I could con my dad into getting his Z51 down there sooner and tossing some 15w-50 in it for a road trip... I'm a lousy salesman, so doubtful .

DAFFYDRUNK

In a car with drive by wire, the 0.05 second lag is an eternity when getting out of the gas while speed shifting, so it's made to leave the throttle down. The ecm retards spark a boatload so the car doesn't bounce off the limiter. If you do it right, you can damn near shift as fast as the A8 does. It's fun.

BEZ06

The Oct HPDE is put on by forum member Henry Gilbert's PDG (Performance Driving Group), and he has a nice stable of race-prepped C5, C6, and C7 cars available for rental. So if anybody wants to fly-n-drive the Oct event take a look at the info on his site:

http://performancedrivinggroup.com/rental-cars


The price includes registration, and if you brought your own car you can figure the cost of brake pads/rotors/tires/gas/etc. So the price to rent of Henry's cars is really a good deal!!

.

Michael A

Attention used car buyers!

These are the people you don't want to buy your next car from.

Michael

ShahulX

wait...my 17 GS has no lift shifting?

Foosh

Every C7 M7 has had no-lift shifting from the beginning.

mksz51

ANY car with a manual transmission can do this if you are willing to beat on it hard enough. Best practiced on your buddy's car.

Foosh

True.

I think distinction here is that GM says it's "OK" or a feature of the M7. I don't use it either. Even when driving hard, I'd rather beat the powertrain up as little as possible, and I gotta believe it causes more pressure plate wear, at minimum.

Subw00er

In reality it is a nice safety feature - will keep you from over revving the motor if you mess up shifting.

I dont plan on doing this often at all (hardly ever really), but the engineers put it in there for a reason, I'd like to see why!

defaria

I went out to Florida to celebrate birthdays with my sisters out there. They got me a ride in a sports car on the Daytona main track. So I got to ride along but didn't get to drive. It's amazing how the banked turns work. I swear I was setting there using the imaginary passengers brake because heading into a turn at that speed and you naturally think you need to slow down. But with the bank it's all just smooth sailing...

falconhulk

This is incorrect. Every car with a manual can do this while causing excessive wear. Only cars with this feature can do this with no damage.

falconhulk

Doing this does not beat up the drive train at all.

falconhulk

How would it save you from over rev on a missed shift? I assume you mean on an accidental downshift? I can't see how it would help.

Higgs Boson

so you can go faster.

mksz51

There will still be damage compared to a more "conventional" method of driving. The RPM alone on the engine will shorten the lifespan. Hey - go for it - stuff like this makes fantastic content for YouTube.

falconhulk

It's no different then shifting and taking your foot off the accelerator. Its just faster and more efficient as the computer does the work. The car handles the actual throttle even though you have your foot to the floor. Why can't you guys understand that this is an electronic feature? All posts like yours do is confuse people. This is not old school power shifting. Do you really think GM would allow a feature that might cause warranty repair?

mksz51

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.