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offplan

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Is this one trip? I get the opposite, the range starts off a little pessimistic and then always beats its original estimate. Not by much, I am always impressed by how accurate it is. I had an iPace before, the GOM was terrible, and always ended up with less range than predicted.
I use the car to commute daily to work - round trip is 130KM. The days that i don't charge it and let the battery drift below 50%, i notice this phenomenon. GOM loses 50-65km from 100% to say 10%
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Ross

Ross

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Notes on COMFORT.
I did that 5 hours in a single hit, no stops. I made sure I wouldn’t need a toilet break. Took a bottle of water and 2 packs of Cheese and Onion McCoys.
Food of champions.

I have the 18 way seats with Race Tex.
Blissfully comfortable although I am the right shape for them. 6’1” and
11 stone 6lbs/160lbs/73kg. Even my scrawny, bony arse wasn’t sore!
Stepped out of the car with no sense of tiredness or any aches and pains.

Didn’t feel the need for the massaging 14 ways although I might get these when I am (even) older
 

ciaranob

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I should have said. I knew someone would ask?. Even took photos!
Pirelli P Zero NFO original fit.
Still on the original tyres. 11,000 miles on car 4-5 MM tread left on front. 3-4 MM on the rear.
Started with
2.6 bar front
2.7 bar rear.
Exactly what door sticker says
IMG_4203.jpeg
IMG_4206.jpeg

As you can see, within 2 miles of start they were 2.7 and 2.8 so slightly over to optimise range.
just for ref, and have no idea re what’s the required std on UK cars these days. but here in the US the pressures on the door sticker are for a full load I.e. 4 persons and luggage - originally the GTK app but now I guess in the MyPorsche app you can find the pressures for 1-2 passengers which are quite different.
 
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Ross

Ross

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just for ref, and have no idea re what’s the required std on UK cars these days. but here in the US the pressures on the door sticker are for a full load I.e. 4 persons and luggage - originally the GTK app but now I guess in the MyPorsche app you can find the pressures for 1-2 passengers which are quite different.
Ciaran, you won’t be surprised to read that I am all over this like an uncomfortable rash!
Porsche Taycan 300 miles. DONT say it can’t be done! (2022 Taycan GTS) IMG_4238

This is my door sticker with helpful Murrican translation to psi!
The lower pressure seems to be for 1-2 adults (or maybe it means you HAVE to take 2) so I was definitely slightly over inflated as I only packed a toothbrush and spare underwear and I weigh much less than even 1 average adult and much, much less than an average American adult ?!
(You can ‘go large’ at Maccer Ds or KFC in UK but you can’t go Supersize like Morgan Spurlock - Great Movie).
 

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How about this one. Extrapolation would give me around 800 km range ! Only have to find a 800 Km long hill descent.

Porsche Taycan 300 miles. DONT say it can’t be done! (2022 Taycan GTS) IMG_5234
 


McgR

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Or this one. My range would be around 150 Km on a full charge.

Porsche Taycan 300 miles. DONT say it can’t be done! (2022 Taycan GTS) IMG_5235
 

ciaranob

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Ciaran, you won’t be surprised to read that I am all over this like an uncomfortable rash!
IMG_4238.jpeg

This is my door sticker with helpful Murrican translation to psi!
The lower pressure seems to be for 1-2 adults (or maybe it means you HAVE to take 2) so I was definitely slightly over inflated as I only packed a toothbrush and spare underwear and I weigh much less than even 1 average adult and much, much less than an average American adult ?!
(You can ‘go large’ at Maccer Ds or KFC in UK but you can’t go Supersize like Morgan Spurlock - Great Movie).
Well that is 100% more clear than the text heavy sticker on my '22 - wonder if they've upgraded these labels on newer cars here in the US - the pressures as mentioned on my sticker most def refer to 4 up - different on yours and indeed, you are all over this :)!

Porsche Taycan 300 miles. DONT say it can’t be done! (2022 Taycan GTS) IMG_2313
 

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The closest I get is probably 2 to 3 car lengths behind and this has a noticable influence on energy consumption, be it petrol or electric, IME.
All self driving features I tried do not allow to drive so close behind, unfortunately. Can you explain a bit more on this effect to make use in real life?
 


f1eng

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All self driving features I tried do not allow to drive so close behind, unfortunately. Can you explain a bit more on this effect to make use in real life?
I have never used self driving so can’t help.
Sitting in a steady speed train of traffic considerably reduces aerodynamic losses. Part of the gain I have observed is perhaps in heavy traffic the speed is slower too, but being in the wake of a draggy vehicle like a SUV or delivery van will always reduce losses, whether an EV or IC engined car.

The bigger their wake the more of their fuel you are benefitting from ;)
 

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I have never used self driving so can’t help.
Sitting in a steady speed train of traffic considerably reduces aerodynamic losses. Part of the gain I have observed is perhaps in heavy traffic the speed is slower too, but being in the wake of a draggy vehicle like a SUV or delivery van will always reduce losses, whether an EV or IC engined car.

The bigger their wake the more of their fuel you are benefitting from ;)
Thanks. So on a highway close behind a big truck. I'll give it a try and see if I can see any difference in consumption.
 

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Thanks. So on a highway close behind a big truck. I'll give it a try and see if I can see any difference in consumption.
Basic physics.
A large proportion of the energy consumed at speed on a motorway is overcoming aero drag, particularly on fashionable but draggy SUVs so being in the wake of another vehicle has always and will always reduce energy usage. The variable is how much.
Drag force goes up with speed squared.
 

Gru

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According to my favorite AI (…) one could roughly expect reducing drag by one third, drag accounting for about one third of total consumption. That would sum up to around 10 to 15% reduced consumption.

————————————
When a car follows another car closely, it can experience a reduction in aerodynamic drag due to a phenomenon known as "drafting" or "slipstreaming." This reduction in drag occurs because the lead car creates a disturbed airflow pattern, and the following car can position itself in a region of reduced air pressure behind the lead car. This lower air pressure can help to reduce the drag force on the following car.

The exact amount of drag coefficient reduction when one car follows another can vary based on several factors, including the distance between the two cars, their relative speeds, the shapes of the cars, and the characteristics of the surrounding environment. In general, studies and simulations have shown that a following car can experience a reduction in drag coefficient by around 20% to 50% when drafting closely behind another car.

It's important to note that while drafting can provide aerodynamic benefits, it also comes with potential risks and challenges, such as reduced visibility, increased sensitivity to sudden changes in the lead car's behavior, and the need for precise control to maintain a safe distance. Additionally, drafting too closely can lead to a decrease in cooling efficiency, particularly for the engine and brakes of the following car.

Keep in mind that these values are approximate and can vary based on specific conditions and vehicle designs. Always prioritize safety and adhere to traffic laws when driving on the road.

The percentage of energy consumption attributed to aerodynamic drag in an electric car at a given speed like 120 km/h can vary based on the vehicle's design, size, shape, and other factors. However, in general terms, aerodynamic drag becomes a more significant factor as speed increases.

At highway speeds such as 120 km/h (74.5 mph), aerodynamic drag can account for a substantial portion of an electric car's energy consumption. It's not uncommon for aerodynamic drag to contribute to around 20% to 40% or more of the total energy consumption at these higher speeds.

It's important to note that this estimate is a rough approximation and can vary based on factors like the car's aerodynamic efficiency, weight, tire design, road conditions, and more. Electric cars are designed with aerodynamics in mind to minimize drag and improve overall efficiency, but as speed increases, the energy required to overcome air resistance becomes more significant.

For more precise information about a specific electric car's energy consumption breakdown at different speeds, you would need access to detailed technical specifications, testing data, or simulations provided by the car manufacturer or independent research organizations.
 

Gru

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a bit more than 320 miles
Porsche Taycan 300 miles. DONT say it can’t be done! (2022 Taycan GTS) Screenshot_20230817-211659~2
 

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I believe you...My highest was 314 miles in the heat of the summer in California; original Michelins; 20' Aero wheels.
 
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Ross

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I believe you...My highest was 314 miles in the heat of the summer in California; original Michelins; 20' Aero wheels.
Love the Frozenberry!
With the 20’ Aero wheel RWD sedan combo that is perfect high range spec. Go and do 340. It’s a challenge!
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