OV9

Oh dear - I hope this was just a glitch in translation because I really don't think the battery is actually a flywheel:

The articles are all a bit hazy about how this is achieved, however, we know that the turbo has no wastegate so my expectation is that it can flip to be used in a dual capacity as a generator as well (which would slow the turbo down when off throttle) and that is how they ensure the battery is topped up at all times, as per the quote.

ETA - Car article goes into details and confirms what I suspected: "There’s no longer a wastegate on the turbo. Instead, the electric motor does the same job, braking the system and transferring the recovered energy to the battery or second e-motor in the PDK ‘box depending on the use case."

Well that is interesting and worrying. Isn't that essentially what the MGU-H component in F1 power units does? Deemed so expensive and complex that it will be banned from 2026 so that Audi/Porsche can have a hope of developing a competitive engine

Not sure I'd want that in my road car.

Surprised they didn't call it the Porsche 911 991.2 Carrera [4] GTS 3.6 Single-T-MGU-H PDK-E-Hybrid [Coupe/Targa/Cabriolet] Spoiler Flaps edition.

Jobbo wrote: Wed May 29, 2024 12:22 pm Oh dear - I hope this was just a glitch in translation because I really don't think the battery is actually a flywheel:

Battery is reasonably heavy, so maybe in addition to holding electrical energy, it also spins at several thousand rpm.....

mik wrote: Wed May 29, 2024 9:25 am edit: I am not hugely convinced by more conventional hybrids or PHEV's that alternate between power sources. The idea of driving 10 miles on purely electric, and the car brain then kicking in the ICE from cold in order to accelerate down a motorway slip-road makes me wince.

I'm not sure why... While I admit it's not a 911, in our Corolla the switch between EV and ICE is so seamless you have to concentrate to notice it happened. It's literally the same as driving any other auto, just the bimbling bit is done from a battery.

On the new 911, it'll be interesting to see how this Carerra/GTS tech division pans out as the inevitable 24 other models come through. They've long since relegated manuals to the bin for RS cars, tried with regular GT cars and had a backlash/marketing master stroke. Will the hybrid tech feature in the GT3 RS and GT2 RS cars to make them even more mental? And if so, does that mean the GT3/GT3 Touring won't have hybrid to retain the manual option? It would be super odd to have the immediate model above and below a GT3 (the GTS and GT3 RS) both PDK only and hybrid but then leave that tech off the GT3? Maybe it really will become the driver's choice? Who knows...

That said I can see why you'd have PDK for more of an every day driving car. Almost all 911s sold in NZ are PDK, so much so it's rare to find a manual anything. I get it, if my lotto numbers came in a PDK GTS would be my every day driver I think (or a 718 4.0) but I'd still want the manual for driving kicks, so a GT3 T for the weekend thanks.

KiwiDave wrote: Thu May 30, 2024 2:33 am

mik wrote: Wed May 29, 2024 9:25 am edit: I am not hugely convinced by more conventional hybrids or PHEV's that alternate between power sources. The idea of driving 10 miles on purely electric, and the car brain then kicking in the ICE from cold in order to accelerate down a motorway slip-road makes me wince.

I'm not sure why... While I admit it's not a 911, in our Corolla the switch between EV and ICE is so seamless you have to concentrate to notice it happened. It's literally the same as driving any other auto, just the bimbling bit is done from a battery.

Purely from a heat management perspective. Situations where a cold ICE is expected to wake up and work hard from cold. Once everything is warmed fully - no concerns.

My main takeaway from the Top Gear video was that it was nice to see Ollie Kew doing well tbh.

I think it looks alright and the tech doesn't bother me but I wouldn't buy one.

I love it!

I think Porsche has been super clever in their approach to the regs and how to approach them

Rather than lumbering the 911 with a heavy, conventional hybrid system, they've ticked all the boxes (including improved MPG and lower emissions) while delivering more performance and negligible weight increase

I like the idea of the active front aero, although it does look a bit "slabby" when it's closed

The rear seats are a no-cost option, I imagine most people will tick them

It reminds me of cars that ditch some obvious things like A/C or stereo etc so they can claim a weight reduction, knowing that 99% of people will just spec them anyway (except for lummox here, who wanted to be 'pure' and so didn't spec A/C on my 306 Rallye - a decision I regretted!)

mik wrote: Thu May 30, 2024 7:43 am

KiwiDave wrote: Thu May 30, 2024 2:33 am

mik wrote: Wed May 29, 2024 9:25 am edit: I am not hugely convinced by more conventional hybrids or PHEV's that alternate between power sources. The idea of driving 10 miles on purely electric, and the car brain then kicking in the ICE from cold in order to accelerate down a motorway slip-road makes me wince.

I'm not sure why... While I admit it's not a 911, in our Corolla the switch between EV and ICE is so seamless you have to concentrate to notice it happened. It's literally the same as driving any other auto, just the bimbling bit is done from a battery.

Purely from a heat management perspective. Situations where a cold ICE is expected to wake up and work hard from cold. Once everything is warmed fully - no concerns.

I'm still not convinced even when warm actually. It focuses in the mind in the 911 where you have an oil pressure guage sitting in front of you that swings to zero and then take a few seconds to get back up to operating pressure (probably 1 second to "some" pressure but 3/4 to fully stablise) when the start/stop kicks in - there must be some incremental wear involved with oil not being everywhere it needs to be for a few seconds. Maybe it is negligible - maybe it isn't.

I’d be surprised if the main load bearing components lost their oil film that quickly. Also the first part under load to get oil is the mains, then big ends, then little ends, then top of the engine.

I’d be worried if it kicked in hard during a full load event but I’m assuming it’s all calibrated to come in well within its design limits.

Dave!

The loss of the physical rev counter is a real shame though...

Slabbish vents at the front aside, I think it looks good. Seems the GTS is even more special now, especially with its own unique engine and torque fill.

I agree the 2+2 needs be kept, not sure why they’ve flipped on this as I believe the lightweight pack, which removes the rear seats, was a cost option.

No idea how they’re going to move the Turbo S forward, power levels are getting insane… have .1 dropped in value yet!?

DaveE wrote: Thu May 30, 2024 3:16 pm The loss of the physical rev counter is a real shame though...

This. Also I've noticed digital rev counters aren't relaying back the data 100% accurately. They have an element of smoothing going on to the point that even a misfire will show a rock solid idle.