EVORA , EMIRA Tech differences

[au-yt]

I did a factory tour a week ago and learnt a lot about the tech differences so here is what I rember Other than the factory information about the Emira this is what I picked up.

The following is what was explained to me by our enthusiastic and knowledgeable guide Scott.

Chassis isn't as stiff due to the revised sills. and its internally wider, and a different stronger adhesive is used.

Suspension setup and shocks are based on the 410. which "apparently" has  softer setting than the 400? 

discs are one piece. Callipers the same.

tyres on sprt suspension are Michelin Cup 2 LOTUS spec only. want new ones their dealer issue only..

engine V6 is a different version. now limited to 6,800 rpm. now has water oil heat exchanger 400 doesn't.  

supercharger is now an Eaton unit.

different starter and its bellhousing mount is different.

gearbox is the same.

As I remember things I will add to the list.

Edited April 24, 2023 by au-yt

[rudolphwolven]

*****

Thanks.........!

[JimH]

4 hours ago, au-yt said:

discs are one piece.

2-Piece Discs on the FE though?

More brake stuff here :

https://www.emiraforum.com/threads/emira-brake-specs-confirmed-ap-racing-370mm-350mm.426/

 

[LotusLeftLotusRight]

My brother was talking to a Ferrari specialist a couple of years ago. One of his mechanics accidentally dropped a carbon-ceramic brake disc during some servicing work. When it hit the concrete, it apparently turned into a million piece brake disc!

[au-yt]

2 hours ago, JimH said:

2-Piece Discs on the FE though?

More brake stuff here :

https://www.emiraforum.com/threads/emira-brake-specs-confirmed-ap-racing-370mm-350mm.426/

 

That may be case however the cars I looked had what looked like one piece, cast, possibly it had hidden bolts.

[JimH]

53 minutes ago, au-yt said:

That may be case however the cars I looked had what looked like one piece, cast, possibly it had hidden bolts.

??

 

[au-yt]

I was hoping that others who have been on the factory tour to add to the thread.

As for the rotors, off the car on the production line they look one piece and yes the document says 2 piece.

 

[Jon Fuller]

They are 2 piece, but not bolt-together. They're cast together, with what look like little spokes joining the hub, to the rotor.

 

You can actually just see these spokes in that shot above on the blue car if you zoom in.

[Matt W]

If two pieces are cast together, doesn’t that make them one piece ?

[Jon Fuller]

Well I think the rotor is cast iron, and the hub is Ali, and I guess the pins are something strong, so differing materials.

 

if these differing materials were riveted together, or bolted, would they be one piece?

 

However, if you wanna call em 1 piece, that's your prerogative

 

Is everyone happy now?

[au-yt]

Another thing, the seats, are assembled in house, the frames are made by the same company as Ferrari, the addition of foam and leather is done in house. The will be two options 12 way for the LE and latter 6 way.

[Bibs]

54 minutes ago, au-yt said:

the frames are made by the same company as Ferrari

https://www.lear.com/technology/seating

[JimH]

3 hours ago, au-yt said:

Another thing, the seats, are assembled in house, the frames are made by the same company as Ferrari, the addition of foam and leather is done in house. The will be two options 12 way for the LE and latter 6 way.

[au-yt]

Good you found a photo, you cannot take pictures in the factory.

[C8RKH]

5 hours ago, au-yt said:

Another thing, the seats, are assembled in house, the frames are made by the same company as Ferrari, the addition of foam and leather is done in house. The will be two options 12 way for the LE and latter 6 way.

Seem to remember news on here that Lotus were / had, closed down their internal trim shop, including the seats...? 🤔

[Bibs]

2 hours ago, au-yt said:

Good you found a photo, you cannot take pictures in the factory.

https://www.thelotusforums.com/latest-news/our-news/pics-lotus-emira-production-line-tour/

Sometimes you can 👍

[scotty435]

On 24/04/2023 at 23:16, Jon Fuller said:

Well I think the rotor is cast iron, and the hub is Ali, and I guess the pins are something strong, so differing materials.

 

if these differing materials were riveted together, or bolted, would they be one piece?

 

However, if you wanna call em 1 piece, that's your prerogative

 

Is everyone happy now?

The first editions are 2 piece discs and 1 piece cast iron discs are going to be standard fit on base model with 2 piece being a cast option. Photos of 1 piece discs 

[au-yt]

1 hour ago, C8RKH said:

Seem to remember news on here that Lotus were / had, closed down their internal trim shop, including the seats...? 🤔

From memory, they have trims made locally, then the trim, foam and frame are assembled in house.

[MrBlueSky]

On 24/04/2023 at 20:00, JimH said:

??

 

That's a very odd design. Surely the gap between 

Between the hub and rotor will significantly increase the loading on the pins or bolts for no obvious advantage that I can see.

[JimH]

https://www.racetechnologies.com/article/why-use-two-piece-floating-disc-assembly#:~:text=In a two-piece floating,without having a detrimental effect. 
 

The most succinct explanation that I could find…. 😀

[au-yt]

Interesting the original EVORA has a lower Drag Coefficient than the EMIRA.. but who cares

[TdM]

Wonder what the actual technical differences on the engine are. There was a newer Toyota 3.5 V6 but I don't believe it's that one (as it won't fit as I understand it) and Toyota are unlikely to design a new crate engine for a few years of Emira. Would be interesting to know why it's got a lower limiter in the end. The cynic in me says it's software just so they can bump it up in the future.

The chassis change, they've obviously compromised stiffness for space inside and ease in and out by trimming the sills down. Which is fine if it sells the cars. I doubt most would notice the difference in chassis stiffness. 

Would be good to know if the new starter motor is more reliable than the old unit. I suspect you'll be able to make it fit the old car with a bit of tweakery.

 

I was intrigued to see on Harry's garage video that a lot of the 'personality points' are the same with the Evora. Doesn't like low voltage on the battery and throws CEL. can mist up and take ages to demist. Even the demist pattern on the windscreen was the same, demists passenger quicker than driver side. 

[au-yt]

1 hour ago, TdM said:

Would be good to know if the new starter motor is more reliable than the old unit. I suspect you'll be able to make it fit the old car with a bit of tweakery.

 

There is a different cutout and position in the bellhousing to suit the new starter.