[ANSWERED] How Does No-Lift-Shift Work
 

Original question is here.

Thank you Tadge, Although the calibration details would have been extremely interesting.

Which Model/Year corvettes does this work on?

All C7's and later C6 cars

I'm pretty sure the answer Tadge gave was in reference to the C7s. The system in the C6s was a little different in that it only worked with launch control. In other words: only from a dead stop. The C7's version is on all the time.

launch control has nothing to do with NLS on the C7. I also believe launch control does not have to used or activated for NLS on the Camaro, Cadillac or the later C6 cars.

The NLS system in the later C6 cars is different than what's in the Caddies and Camaro. It requires you to use launch control, and is not on otherwise. I can assure of that fact.

Interesting.... I didn't know the C6 had NLS at all. So I'd assume that my '13 GS has it. If my car were stock, I'd love to go out and grab some logs to see how it works. I'd be a little worried to try it with my methanol injection, though.

Do you have any idea what GM uses to control RPM during a NLS? If it's keeping the throttle wide open, then it has to be either spark or fuel. Since stock cars use fuel-cut as the default for the rev limiter, that would be my guess. More info would be cool, though.

So basically any driving mode. Just leave the gas fully depressed, and clutch. Shift. Drop clutch. Leave gas fully depressed the whole time?

when you initiate a no lift shift , foot on the floor and keep it there, do your shift as close to 6500 as you can with out hitting the rev limiter first. If for instance you initiated your 1-2 shift at 6400 rpm, the NLS feature keeps the rpm at 6400 during that split second foot to the floor blip the clutch and shift all at the same time technique. The feature holds the rpm you initiate the shift for a very short time. If you are slow doing the power shift or screw up, the system just lets the engine hit the rev limiter which is 6600 rpm if you are slow to lift of the throttle.

Yes, gas pedal right on the floor, slight pressure on the shifter, blip clutch and shift at the same exact time at your desired rpm. Hard part is to train yourself not to lift.The other hard part is shifting quick enough or early enough to not hit the rev limiter (fuel shut off)

I thought about NLS when doing the Mojave Magnum 1.5 mile run. I couldn't fight my instinct to let of the gas. Decades of driving manual says it's all wrong!

Great question and great response.

Thank you Tadge!

I tried this and hit the rev limiter. Guess I wasn't fast enough.... Will try again.

Question, can NLS be tuned into the earlier cars? I would love to have this on my 08.

When I do the NLS I start the action at 5800 rpms, peak hp. also gives a bit of room for a screw up...haven't had that problem yet but you never know.
Mt '09 was not fun to do the NLS in as it dogged going into the next gear, was better dong speed shifts.

Initiate the power shift at 6200, you shouldn't hit the rev limiter. The No lift shift starts to work when you move the shift lever. If you push the clutch in before you pull or push the shift lever it will go right to redline and hit the rev limiter.

You are leaving some power on the table if you actually shift all three shifts at say 6000. I am thinking the engine rpm increases 200 rpm for the delay it takes from reading the tach and initiating the shift. So making shifts at 6000 rather than closer to 6500, you could be a tenth or 2 off in a 1/4 mile timed track and your trap speed will be a little slower.

In 2009, the ctsv and the zr1 vette had NLS, the Camaro zl1 had it in 2010. From what I understand, it was developed for the charged cars so the charge boost doesn't drop when you shift.
Do not know if it existed in 08, and not sure what year the naturally aspirated vettes got it.

This kills the life of the clutch no?

No worse than a speed shift. Actually the less you slip a clutch, the less wear you have.