[1upJD]

Hey all, I'm sure this has been discussed a bunch but I wanted to ask on my own thread for it. I just recently began using the no lift shift feature on my zl1 and it's been a lot of fun for me. I get a big adrenaline rush when doing it, and I feel like I'm shifting faster than I ever have. My question is about the safety/reliability of this feature. Are there any potential negatives of using no lift shift every time I do a pull long-term? Will this hurt the motor, the trans, or the clutch long term or is it perfectly safe? Thanks guys!

[arpad_m]

Well, it's a factory feature, so the manufacturer must be confident about its effect on drivetrain longevity. What it does is it simply disconnects the go pedal from your input temporarily, keeping revs in a target range until the shift is completed, plus you have auto rev matching on top of it, so unless you money shift, it shouldn't cause any harm.

Then again, I have an automatic, so let's hear more from current "mansmission" owners

[SSDan]

I wouldn’t go as far as saying it’s perfectly safe unless you perfectly shift every time. The car will operate as Arpad has described but if you even twitch your right foot even just a tiny amount you will bang off the rev limiter (not a deal breaker but not something you should do often). The real worry is a money shift as mentioned (example: when shifting from third to fourth but mis-shifting into second). That will ruin your day.

[1upJD]

Originally Posted by SSDan

I wouldn’t go as far as saying it’s perfectly safe unless you perfectly shift every time. The car will operate as Arpad has described but if you even twitch your right foot even just a tiny amount you will bang off the rev limiter (not a deal breaker but not something you should do often). The real worry is a money shift as mentioned (example: when shifting from third to fourth but mis-shifting into second). That will ruin your day.

Haha no kidding. Before the zl1 I had a 2ss and I money shifted the day after I bought it (2nd to 3rd back into 1st) and bent a pushrod and intake valve. Was at chevy for a few weeks after that.

[Zl1+911]

If you do it right it’s fine and no downside.

Here is a downside (ask me how I know). On the track if you do it and the accelerator is not 100% depressed, and you let go of the clutch, the rears spin and induce rear end slip. Not a big deal in a straight line, but if there is a slight arc you are managing at the same time (back straights), the car will oversteer and spin.

[NG329]

As an avid track rat, I use NLS mainly from 3rd to 4th, and 4th to 5th.

When executed properly it seems very easy on the drivetrain.