RE: Lotus Evija to target Nurburgring record

RE: Lotus Evija to target Nurburgring record

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Discussion

Straff99

130 posts

173 months

Friday 19th July 2019
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Zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Oh, sorry, WHAT? Where was I? Oh yes: zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
sleep

lotuslover69

Original Poster:

269 posts

144 months

Friday 19th July 2019
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Some people think the key to Lotus success was Lightweight but it wasn't, it was Innovation.

Lotus didn't always invent a concept but they utilised it in such a way that made a forgotten idea popular. During the 25 years that Chapman ran Lotus they pretty much single handedly changed the face of motorsport and many other car companies owe a lot to Lotus. Companies like Ford, Alpine and Caterham. Lotus going electric is precisely what Lotus should be doing, they need to be at the cutting edge.



Baldchap

7,672 posts

93 months

Friday 19th July 2019
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Straff99 said:
Zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Oh, sorry, WHAT? Where was I? Oh yes: zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
sleep
2000bhp hypercar likely won't make a loud brum noise,is therefore boring.

I've said it before and I'll day it again (and be correct), everyone saying how boring electric hypercars are would give their left nut to pilot one round the ring in anger.

Red_Kite

13 posts

90 months

Friday 19th July 2019
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"the 70kW/h battery pack has been designed to deliver its 2MW peak flow for up to seven minutes"

A 70kWh battery back discharging at 2MW, will last for 0.035 hours or 2 minutes at 6 seconds. I am not sure I make much of their technical presentation. Of course it won't be full power all the time, but will it even make it round a single flat out lap of the Nurburgring? It sounds like the battery pack is way too small for the level of power this car packs.

Edited by Red_Kite on Friday 19th July 10:38

Cold

15,252 posts

91 months

Friday 19th July 2019
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Red_Kite said:
"the 70kW/h battery pack has been designed to deliver its 2MW peak flow for up to seven minutes"

A 70kWh battery back discharging at 2MW, will last for 0.035 hours or 2 minutes at 6 seconds. I am not sure I make much of their technical presentation. Of course it won't be full power all the time, but will it even make it round a single flat out lap of the Nurburgring? It sounds like the battery pack is way too small for the level of power this car packs.

Edited by Red_Kite on Friday 19th July 10:38
You should probably address these concerns to Williams Engineering as it's their pack. They supply the batteries for Formula E.

Tuna

19,930 posts

285 months

Friday 19th July 2019
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Red_Kite said:
"the 70kW/h battery pack has been designed to deliver its 2MW peak flow for up to seven minutes"

A 70kWh battery back discharging at 2MW, will last for 0.035 hours or 2 minutes at 6 seconds. I am not sure I make much of their technical presentation. Of course it won't be full power all the time, but will it even make it round a single flat out lap of the Nurburgring? It sounds like the battery pack is way too small for the level of power this car packs.

Edited by Red_Kite on Friday 19th July 10:38
I assume they are talking about the thermal design - ie. you can absolutely cook it for seven minutes and you won't end up with a puddle of lithium and a car in limp home mode.

anonymous-user

55 months

Friday 19th July 2019
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Red_Kite said:
"the 70kW/h battery pack has been designed to deliver its 2MW peak flow for up to seven minutes"

A 70kWh battery back discharging at 2MW, will last for 0.035 hours or 2 minutes at 6 seconds. I am not sure I make much of their technical presentation. Of course it won't be full power all the time, but will it even make it round a single flat out lap of the Nurburgring? It sounds like the battery pack is way too small for the level of power this car packs.
When driving a "lap" then you can recover significant energy via regen, the slower the average speed the higher the energy percentage you can recover. And of course, the powertrain is not at 100% power even when you are accelerating (due to traction limits).

Worst case is Vmax, where all your battery energy goes 100% into drag. If we assume this car can do 230mph, then 2.06 min at that speed is a distance of around 8 miles, so you'd need to find an 8 mile long "straight" to do that? (Nardo HST is juuust about big enough, but with a neutral steer speed of just 150mph, at 230mph the tyres are getting a beasting and the tyre drag is significant, the Koenigsegg CCR, did 241 there back in 2005)


They also don't mention how long you have to wait after you've done a full battery depletion at max power, before you can charge it again at any high C rate...

For example, the IDR has onboard and offboard battery cooling for a faster turnaround:



Note the force air cooling hoses!

pycraft

783 posts

185 months

Friday 19th July 2019
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Surely this is missing the point - yes this is a car few will ever see, let alone drive. But if it gets to market, then surely it will have a decent bespoke ICE that will propagate down to the other models and shut up all of the "isn't that an off the shelf Alpine" claptrap...

Housey

2,076 posts

228 months

Friday 19th July 2019
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Baldchap said:
Why would it fart? It's electric. At least read the story before pouring scorn all over the product.
I sense irreverence is not something you understand?

I am well aware it is electric, I have read about the car well before it arrived on PH.

But keep condescending if it makes you empowered.

Housey

2,076 posts

228 months

Friday 19th July 2019
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sidesauce said:
I can appreciate that people have different things that appeal to them.
And all I did was express that on a public forum for debate.

Opinion, that's all and as covered above I am well aware it's electric, my point about Goodwood was not meant to be descriptive as to its sound...

Robscim

799 posts

257 months

Friday 19th July 2019
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Cold said:
You should probably address these concerns to Williams Engineering as it's their pack. They supply the batteries for Formula E.
Not that it's hugely relevant to the debate, but no they don't!

Rob

Wammer

394 posts

189 months

Friday 19th July 2019
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Cold said:
Red_Kite said:
"the 70kW/h battery pack has been designed to deliver its 2MW peak flow for up to seven minutes"

A 70kWh battery back discharging at 2MW, will last for 0.035 hours or 2 minutes at 6 seconds. I am not sure I make much of their technical presentation. Of course it won't be full power all the time, but will it even make it round a single flat out lap of the Nurburgring? It sounds like the battery pack is way too small for the level of power this car packs.

Edited by Red_Kite on Friday 19th July 10:38
You should probably address these concerns to Williams Engineering as it's their pack. They supply the batteries for Formula E.
I would check your facts as i think you will find Mclaren supply the batteries for Formula E.

https://www.mclaren.com/appliedtechnologies/case-s...

menguin

3,764 posts

222 months

Friday 19th July 2019
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JamesL91 said:
Lotus doing things different..

And then banging on about a Nurburgring time again. How may times is a production one of these actually going to do that? It's a meaningless statistic!
If we were talking about a diesel ford, I'd agree. But this is designed as a hyper car. Everyone wants to know how fast it is. How fast it is will be one of its defining factors, not how much shopping it can carry.

mikeg15

287 posts

201 months

Friday 19th July 2019
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John145 said:
There’s a lot of learning to be done on this car that will benefit Lotus greatly over the next 20 years.

What other car has true 4 wheel torque vectoring? No one. Getting ahead of the game here will be the true game changer for vehicle dynamics over the next 10-15 years.
This makes a lot of sense. "Game changer" is appropriate, though did not Mclaren have something similar on the P1 ?

Oily76

186 posts

112 months

Friday 19th July 2019
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Rawwr said:
They're well aware of that, I'm sure.

Are people really daft enough to see the Evija as a RotM model to make money? It's the halo. It's only purpose is to draw attention to the new and improved Lotus under Geely and prepare the market for future, profitable products.
Tech trickle down too.

Edmundo2

1,346 posts

211 months

Saturday 20th July 2019
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Absolutely stunning. I've been bored to tears with the recent procession of hyper cars but this different. Beautiful proportions and detailing. A modern day McLaren F1? Only issue I can see is the lack of noise..

AnthT

79 posts

266 months

Saturday 20th July 2019
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Oily76 said:
Rawwr said:
They're well aware of that, I'm sure.

Are people really daft enough to see the Evija as a RotM model to make money? It's the halo. It's only purpose is to draw attention to the new and improved Lotus under Geely and prepare the market for future, profitable products.
Tech trickle down too.
I have a trickle down the inside of my leg thinking about it

RTB

8,273 posts

259 months

Sunday 21st July 2019
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Surprised Ronin hasn't been on to tell everyone how it's slower than his Exige biggrin

Exige77

6,518 posts

192 months

Sunday 21st July 2019
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Oily76 said:
Rawwr said:
They're well aware of that, I'm sure.

Are people really daft enough to see the Evija as a RotM model to make money? It's the halo. It's only purpose is to draw attention to the new and improved Lotus under Geely and prepare the market for future, profitable products.
Tech trickle down too.
Tech is from outside sadly. Anyone can buy it.

SidewaysSi

10,742 posts

235 months

Sunday 21st July 2019
quotequote all
AnthT said:
Oily76 said:
Rawwr said:
They're well aware of that, I'm sure.

Are people really daft enough to see the Evija as a RotM model to make money? It's the halo. It's only purpose is to draw attention to the new and improved Lotus under Geely and prepare the market for future, profitable products.
Tech trickle down too.
I have a trickle down the inside of my leg thinking about it
You pissed yourself? Better see a doc.