OV9

Posted: **Mon Feb 24, 2025 9:20 am**

They had a similar system in the 90s on diesels which would give you full boost at any rpm by tilting the impellar blades.

Volvo used a way of capturing turbo run on in the 90s too. The impellar shaft came out the back of the turbo into a fluid clutch, this then connected onto the flywheel so any parasitic lost by turbo over speeding was sent to the crank. It wasn’t very good as the shaft leaked and it was quite noisy, a clever concept though.

Dave!

Posted: **Mon Feb 24, 2025 10:38 am**

What's the end-game here, what's the problem Porsche are trying to solve?

This hybrid car hasn't done anything for emissions, economy or weight (obviously) so what's the point? Or is it just the first stepping where they want to go?

Like school, I've not really been paying attention in class.

Posted: **Mon Feb 24, 2025 10:54 am**

VAG are probably trying to figure out what to do with all the tech they’ve developed now that the EV boom market is contracting.

Posted: **Mon Feb 24, 2025 11:25 am**

mik wrote: Mon Feb 24, 2025 8:28 am
V8Granite wrote: Mon Feb 24, 2025 7:17 am does anyone not enjoy that short period between no boost and boost, the little quick building shove ?
I'd rather have immediate response tbh. Which is where superchargers win massively over turbos for me. Pete RevsRUs 600LT takes a deep breath when you floor it, before it thumps you down the road - no argument with the level of thrust, but it made it trickier to pilot - it was probably the only element I didn't really love (although I would have preferred manuel obvs).

So of the 911:

1. Why didn't they un-twist that rear drivers side seatbelt?
2. If you'd suggested to me that a turbo could harvest sufficient power to effectively regen the battery I'd have scoffed at you. I guess a turbo harvesting a little for much of the time provides similar performance to "conventional" drivetrain regen harvesting a lot, but less frequently. I couldn't work out if Harry was correct suggesting that max regen occured at full throttle or if it actually occured when off-throttle? I'll need to hunt down another video I guess.
3. 1700kg.
4. Price = £ouch!
5. I missed Harry commenting on the fuel efficiency, but saw Mike's 16mpg comment below. Pretty awful if that is correct.

2) from my understanding while having it on in the background and Harry’s description + what I know about turbos….

Turbos can make way more boost than the engine needs. Usually this is regulated by the wastegate which opens so exhaust gas bypasses the turbo, and turbine speed is regulated.

The Porsche hybrid system instead uses regen on the turbo to keep it at a set peak boost level, the excess charges the battery.

Usually you get peak over boost in the mid range where the engine can’t consume as much air as the turbo could make, at higher rpm it usually starts to close again as the turbo is working outside of its efficiency range. Boost usually ramps up fast, sits flat, then tails off.

I thought it sounded like a clever system, however if all it does is add weight and complexity without really improving efficiency then maybe it’s not the way forward

Posted: **Mon Feb 24, 2025 12:23 pm**

The other thing in that video which confused me was when he was concerned there was nowhere to put the key. Is it just me who puts it in their pocket?

Posted: **Mon Feb 24, 2025 12:41 pm**

Ascender wrote: Mon Feb 24, 2025 12:23 pm The other thing in that video which confused me was when he was concerned there was nowhere to put the key. Is it just me who puts it in their pocket?

Good point - it's been a thing for me since 2010 I think, and it's just felt entirely natural to leave it in my pocket where it started.

I don't think Harry mentioned the RIMAC logo on the hybrid battery though Charlie zoomed in on it. But that does indeed look very much like VAG having bought the tech and wanting to find a use for it.

Posted: **Mon Feb 24, 2025 1:05 pm**

It would be a wonderful way to test the durability of a battery as it gets charged and discharged quite aggressively (I assume as turbos will be at 150,000rpm ish I guess) many times a journey.

Dave!

Posted: **Mon Feb 24, 2025 1:11 pm**

ZedLeg wrote: Mon Feb 24, 2025 10:54 am VAG are probably trying to figure out what to do with all the tech they’ve developed now that the EV boom market is contracting.

The EV market isn't contracting!

I've got no axe to grind but there's lots of negative views here on EVs from people who have never driven one never mind tried living with one.

Perhaps that's part of the problem with our transition is that Joe Blogs view is clouded by neg head car guy who he would usually take advice off.

My M2 has a range of 250 miles and twice in 2000 miles I've been down to 0 miles left! That never happened once in 20k+ miles in EVs with a range of 200 ish miles as they were always full to start the day!

Posted: **Mon Feb 24, 2025 1:19 pm**

I don't think the 992.2 GTS is in any way an EV though. Criticising it for failing to be a proper hybrid is quite reasonable.

Posted: **Mon Feb 24, 2025 1:28 pm**

I’m at a loss what the e-turbo adds, especially as just using the enlarged 3.6 would’ve added enough additional grunt to mark the .2 as an improvement.

Maybe Porsche knows more about Euro7 (or at least did) when this car was being developed and it would’ve achieved better/lower taxes, but the Ferrari/Lambo comparison makes a mockery of that. Don’t forget they also planned to launch the elec Coxster and look how well that’s going.. certainly a lot of moving goalposts for car manufacturers. BMW seems to be the only company to be getting it right currently with a vast range of petrol, phev, and Ev (although they’ve dropped Diesel, so certainly not perfect)..

I went and looked at a slate grey 992.2 GTS in High Wycombe last week, good looking car imho, but there seems to be a lot of brand new Porsche 911s available currently, same with Ferrari, Lambo etc which makes me cautious about buying… unless you find a good deal ofcourse; a friend was offered a 992.1 Turbo S for 22k plus 1kpcm, but I only spoke to him a month later and it was gone by then.

Posted: **Mon Feb 24, 2025 1:30 pm**

This is the whole MGU-K pisstake isn’t it? Porsche said it’s way too complicated and unreliable for F1 for a new team to develop so it was pulled. Then they put it on their road car because something that’s too complicated for the top tier of motorsport is exactly what you want in a road car

Posted: **Mon Feb 24, 2025 1:32 pm**

Carlos wrote: Mon Feb 24, 2025 1:11 pm
ZedLeg wrote: Mon Feb 24, 2025 10:54 am VAG are probably trying to figure out what to do with all the tech they’ve developed now that the EV boom market is contracting.
The EV market isn't contracting!

I've got no axe to grind but there's lots of negative views here on EVs from people who have never driven one never mind tried living with one.

Perhaps that's part of the problem with our transition is that Joe Blogs view is clouded by neg head car guy who he would usually take advice off.

My M2 has a range of 250 miles and twice in 2000 miles I've been down to 0 miles left! That never happened once in 20k+ miles in EVs with a range of 200 ish miles as they were always full to start the day!

I was just basing that on the news tbh.

Manufacturers seem to be panicking because they rushed ahead to monetising EV tech before it was ready in a move that no one could’ve seen coming

Posted: **Mon Feb 24, 2025 8:31 pm**

Reasons behind it were mentioned ages back, maybe when it was first announced or maybe in other vids (in the decent thread?). IIrc it was to do with legislation (might be Euro 7, might be proposed, I can't remember) that was something like not running rich, using the electric motors to get the engine out of those scenarios. Lambda 1? It feels like it was last gen ago when I saw about it, was there a concept/show car that previewed it?

Posted: **Mon Feb 24, 2025 9:33 pm**

ZedLeg wrote: Mon Feb 24, 2025 1:32 pm
Carlos wrote: Mon Feb 24, 2025 1:11 pm
ZedLeg wrote: Mon Feb 24, 2025 10:54 am VAG are probably trying to figure out what to do with all the tech they’ve developed now that the EV boom market is contracting.
The EV market isn't contracting!

I've got no axe to grind but there's lots of negative views here on EVs from people who have never driven one never mind tried living with one.

Perhaps that's part of the problem with our transition is that Joe Blogs view is clouded by neg head car guy who he would usually take advice off.

My M2 has a range of 250 miles and twice in 2000 miles I've been down to 0 miles left! That never happened once in 20k+ miles in EVs with a range of 200 ish miles as they were always full to start the day!
I was just basing that on the news tbh.

Manufacturers seem to be panicking because they rushed ahead to monetising EV tech before it was ready in a move that no one could’ve seen coming

The way I see it, is that there has been a contraction in the market for the overly expensive, premium electric cars.

Those that could afford them have been stung by massive depreciation when the bubble has burst for that particular sector.

I don't have much sympathy for manufacturers who were chasing this premium end of the market, rather than producing innovative more affordable EVs.

I suspect that the market for medium to lower priced EVs has remained almost unaltered, but isn't the car industry as a whole going through a bit of a wobble at the moment? Apart from maybe Chinese manufacturers... Which are doing the innovative, affordable EV thing.

Posted: **Mon Feb 24, 2025 9:44 pm**

EV market percentage isn’t increasing sufficiently to achieve the targets set by 2030, but all car sales are suffering currently. And the worst depreciating vehicle is still an ICE one - the BMW 8 series: 135k new that’s worth 34k after 3 years apparently!..

Posted: **Tue Feb 25, 2025 3:41 am**

Marv wrote: Mon Feb 24, 2025 9:33 pm
ZedLeg wrote: Mon Feb 24, 2025 1:32 pm
Carlos wrote: Mon Feb 24, 2025 1:11 pm

The EV market isn't contracting!

I've got no axe to grind but there's lots of negative views here on EVs from people who have never driven one never mind tried living with one.

Perhaps that's part of the problem with our transition is that Joe Blogs view is clouded by neg head car guy who he would usually take advice off.

My M2 has a range of 250 miles and twice in 2000 miles I've been down to 0 miles left! That never happened once in 20k+ miles in EVs with a range of 200 ish miles as they were always full to start the day!
I was just basing that on the news tbh.

Manufacturers seem to be panicking because they rushed ahead to monetising EV tech before it was ready in a move that no one could’ve seen coming
The way I see it, is that there has been a contraction in the market for the overly expensive, premium electric cars.

Those that could afford them have been stung by massive depreciation when the bubble has burst for that particular sector.

I don't have much sympathy for manufacturers who were chasing this premium end of the market, rather than producing innovative more affordable EVs.

I suspect that the market for medium to lower priced EVs has remained almost unaltered, but isn't the car industry as a whole going through a bit of a wobble at the moment? Apart from maybe Chinese manufacturers... Which are doing the innovative, affordable EV thing.

Yeah, I was going to caveat that it does seem to be the companies that jumped into the lux ev market that are struggling now. That was a consequence of pushing the tech before it was ready though imo. You need a massive deck of batteries for decent range so might as well make a massive luxury car out of them.

The commercial EV market seems to be thriving. I notice that Mitie have put loads of those new VW transporters into their fleet.

Posted: **Tue Feb 25, 2025 6:13 am**

ZedLeg wrote: Tue Feb 25, 2025 3:41 am The commercial EV market seems to be thriving. I notice that Mitie have put loads of those new VW transporters into their fleet.

Have you seen the comedy second hand value of electric vans?

http://www.autotrader.co.uk/van-details/202411055971813

Posted: **Tue Feb 25, 2025 6:22 am**

37kWh battery, 56mph top speed and 82 mile range? That isn’t even worth the low asking price. Why was it even available in such a terrible spec?

Posted: **Tue Feb 25, 2025 6:26 am**

Jobbo wrote: Tue Feb 25, 2025 6:22 am 37kWh battery, 56mph top speed and 82 mile range? That isn’t even worth the low asking price. Why was it even available in such a terrible spec?

Exactly, i don’t know what they were thinking! theres 30+ of them for sale - i guess they fit someone’s requirement!?

Posted: **Tue Feb 25, 2025 7:07 am**

Biggest problems for electric vans are cost and load capacity- the new transporter costs around 9k more for ev (and the diesel ain’t cheap, 46k vs 53k) looses almost 200kg of carrying capacity, so if you want to carry a tonne bag that’s all you can carry, whereas a diesel you can carry that and your tools. They also don’t mention what loading does to the range

OV9

Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage

Re: Harry’s Garage