Scottish Elises

Hello all

Just a quick heads-up - the website's been revised again, to make it much easier to download brochures and view test drive reviews and social coverage.

The new used car locator content will increase over the coming weeks as we receive more dealer data

http://www.lotuscars.com

Cheers G

Graeme - can you fix the specs for the Evora410? (edit: I originally said 400 - oops - now corrected)

Current power & torque figures cannot be correct - as discussed in this thread. Something is not right.....

Nice update to the site.

Noticed the Exige V6 Cup R and GT4 still on the site, can people still order these cars?

Nice update, for some reason, I clicked on the the 311 first .....

Stu

The comments relate to 410 stats, not 400, correct?

Hi Graeme,

Yes - only the 410 stats are wrong.

Hopefully this isn't an insulting level of explanation, but to explain what I mean.....

Power isn't measured - it's derived (from torque & rpm).

The calculation (for bhp and lbs/ft) is very simple :

Power = (Torque x rpm)/5252

If you plug 410bhp at 7000rpm into this equation, it is clear that you need to be making 307.62lbs.ft of torque at this point.

As the 410 spec sheet states max torque of 302lbs.ft at 3.5krpm (exactly the same as the Evora400), the maths doesn't work.

Either
a. The 410 isn't actually making 410bhp (which would not be good)
b. Your quoted max-torque figure should be higher (which would be good - unless you've promised your gearbox provided you won't go over 302 lbs.ft of course)
c. Your max torque figure is correct, but peak power is actually delivered at more than 7000rpm. Something like 7200rpm. (which would be good - unless you've promised your engine supplier a max rpm below this level.... and since my S1 Evora can rev to 7200rpm - I don't see that as likely).

I had already asked the question to @grouplotusplc on twitter, but no response.....

mik wrote:
Power = (Torque x rpm)/5252
...

Never heard of this before, was under the impression things are a bit more complex than that. Every day's a school day.

Nice web site Graeme

Dominic wrote:

mik wrote:
Power = (Torque x rpm)/5252
...

Never heard of this before, was under the impression things are a bit more complex than that. Every day's a school day.

Nice web site Graeme

Nah - it's simple.

But then you have to ask why the power figure is so important..... Which leads you into the complexity. but I don't want to hijack this thread..... So will shut up.

.....and indeed you are correct with your proposed formula (interesting that it's two x pi, that's why divided by 5252...)

I will revert!

That is why if you look at a RR graph Dom, the power and torque curves should cross at 5252rpm.

tut

Graeme - as highlighted by JayEm on TLF....

on the 410 page
1. The "aerodynamics" image is a 400, not a 410
2. The "Chassis" section is titled "chasis"

mik wrote:Graeme - as highlighted by JayEm on TLF....

on the 410 page
1. The "aerodynamics" image is a 400, not a 410
2. The "Chassis" section is titled "chasis"

yes spotted along with some others....colleagues have been made aware, thanks