limegreen

Pokerhobo

A PDK GTS 4.0 will certainly be faster than a Manual GT4.

GrantG

Maybe in a short drag race - not on a track.

donR

The turbo lag in modern turbo cars is not really like the old days:

2000 RPM - 2.5t GTS 210 ft/lb vs 718 GT4 255 ft/lb, so not a lot in it!
3000 RPM - 2.5t GTS 330 ft/lb vs 718 GT4 265 ft/lb,
4000 RPM - 2.5t GTS 350 ft/lb vs 718 GT4 280 ft/lb,
5000 RPM - 2.5t GTS 350 ft/lb vs 718 GT4 310 ft/lb,
6000 RPM - 2.5t GTS 325 ft/lb vs 718 GT4 310 ft/lb,
7000 RPM - 2.5t GTS 280 ft/lb vs 718 GT4 300 ft/lb,
7500 RPM - 2.5t GTS 270 ft/lb vs 718 GT4 288 ft/lb,

So the 4l will feel slow below 5000 RPM unlike the turbo car, but they will feel very similar above 5000RPM.

If you take off slow from 0, the 4.0 might be a little faster to 40mph.

However, both cars will launch from at least 3000-5000 RPM and the 4.0 GTS will be a detuned 4.0 so my bet is the 2.5t GTS might be slightly quicker due to the torque advantage but there wont be much in it and they will feel very similar in terms of pace.

I think 2.5t GTS will perform a little better on slower winding alpine roads with the extra low RPM torque and due to the relatively long manual gears. PDK with the extra gear should help reduce the torque advantage of the 2.5t GTS. Maybe the 4.0 GTS will be a little faster on the track due to the high RPM hp advantage but overall they should still be similar on the track regardless of gearing.

Of course if you go Stage 1 tune on the 2.5t you will need you GT3 to keep up. Otherwise in PDK form I don't think there is real any disadvantage to the 4.0 or the 2.5t for that matter unless you have a sound preference.

wizee

The torque numbers you have for the 2.5T seem off. The peak torque should be 317 lb ft on PDK, 310 lb ft on manual. Neither can produce 350
lb ft.

On back roads, you’d just stay in first and second gears, where the 4.0 can accelerate into the power band as quick as the turbos can spool up. The 718’s flat four engines are among the laggiest turbo engines I’ve experienced (base particularly, 2.5T less so), much less responsive than bigger displacement motors like the BMW B58 or Mercedes-Benz M157.

donR

Torque numbers are from APRs dyno chart so maybe it reads a little high but as you know Porsche is conservative with its numbers.

Regardless the 2.5 T pulls harder from 2500 RPM all the way up to 6000 RPM, the 4.0 pulls from about 4500 RPM but if you are running in Sport+ both cars will be running above 4500 RPM so not a lot of difference in performance unless you drop the revs in the 4.0.

The 2.5 turbo cars also have pre-spool and VTG so there are no spooling issues or lag above 3000 RPM. It is not like the old days. The new turbo cars actually feel fairly linear from 2500 RPM like an NA car. Modern 2l turbo cars like Audi, BMW and Merc actually pull from around 1500 RPM so really no lag these days.



And 718 GT4 - note in NM, not ft/lb:

erik_plus8

You can't discuss lag and use steady state torque curves as evidence, that's not how lag works.

hf1

I'm in no rush to get anywhere on my backroads so NA and manual perform best regardless of torque, HP, or 0.1s acceleration diffs.

ldamelio

I wonder what production numbers will be. If the 718 is the 914 of the new millenium, the GTS 4.0 may turn out to be the 914-6 (ie, low volume).

Ksdaoski

914-6 has a race history, backed by Porsche factory, which makes a comparison to any 718, unrealistic.

blackholescion

I hear CVTs are pretty popular for emissions reasons.

Chester7

Sounds reasonable Wizee. For reference, how many turbo cars have you owned or do you still own?

Chester7

I see both sides of this. But honestly, we're not going to solve this on a forum. And does it matter? Its starting to sound like two political parties debating. I have a 2019 GTS F4, and I like the idea of the GTS 4.0. IMO you won't see many of them on the road. Lots of people are excited, but many fewer are running to the dealer and putting money down. Like any other product, a high price leaves many folks on the sidelines.

#1SomeGuy

Both are fast...and now you have the option of either low end torquey turbo or high end power, it's win win. I doubt there is much between them and both will be fun enough for the drivers to enjoy.

MidEngineRules

No, you must take a side lol