arek

Has anyone tried to no-lift-shift a 718 GT4 or Spyder already? Does it work the same way as in 991.2 GT3?

For reference, here's a video with AP (Andreas Preuninger, head of GT at Porsche) saying they have speed shift (5:30 mark):


Here's a thread discussing that feature on the GT3:
https://rennlist.com/forums/991-gt3-...991-2-gt3.html

ralphmusic

My Porsche Centre technical department have confirmed that flat shift is a feature on the 718 GT4 but as I am still running in the engine I am not about to try it at the moment.

GT325

You can test no lift shift during run in without issue as it works at all RPMs. So you can try it when upshift at your break in rpm.

GrantG

Yes, you can try it at any engine speed, throttle position, and road speed - just hold your throttle position steady throughout whole process when pressing the clutch, move shifter to next higher gear, and release clutch. No reason not to try during break-in.

It is most effective when you have the throttle floored, but not at all necessary. It is actually smoother and less stressful to the car than you can do yourself.

If you try it at like 3,000 rpm and light throttle, you should have time to react in the unlikely event that the no-lift shift does not work (and revs spike).

Westcoast

@arek @ralphmusic assuming you have the manual for your cars, is it in the section on driving or the transmission, if so can you post a copy of the page(s) here?

Thanks!

JCR-Porsche

The three cars i've driven don't have the feature.. Interesting!

JC

Westcoast

How did you determine that, did you try it?

arek

I don’t have the owner’s manual yet, I’m picking up my Spyder next month.

I asked because I use this feature in my GT3T (and yeah, you can do it at any engine speed) and I would love to have it in the Spyder as well.

kyrocks

Thank you for starting this thread. I was going to ask the same question, but you beat me to it.
I am picking up my spyder in Germany in early July and was wondering if this feature was available. I also use it in my manual GT3.

JCR-Porsche

Yes, tested in all modes.

To be honest I see it as a good thing, you can shift faster without it

JC

Archimedes

So you kept the throttle pinned, depressed the clutch pedal, shifted and then let the clutch pedal up, on a car without no lift shift? What happened when you did that?

GrantG

You don’t have to floor the throttle to test (just hold it steady at any position). But if you did floor it without the feature, you would hit the rev limiter (would not over-rev, but would certainly go over break-in limit).

Hopefully, it would be very obvious to the driver not to release the clutch pedal while redlining.

PierreTT

Tried to use it on my 3.
I was never really able to shift my mind to not lift a bit. Muscle memory I guess!
Cool feature if its in the new GT4/Spyder!

GrantG

Yes, it takes quite a while to get used to it. Hopefully, I’ll remember how to shift normally in my 73 911

prl

It makes driving in traffic a tad nicer using the partial throttle no lift, on track it’s nice but half the time from 4th to 5th I forget I have it lol. 3rd to 4th I use it all the time on track, but the 5th gear shift is tricky so I tend to forget and use lift. This is on my gt3, I am super pumped to have it on my incoming gt4! (Gt4 is my wife and I shared car)