Lotus E22 Renault

[basti313]

This car is air to air intercooled.
The big box on the ground may be for electronics or battery cooling.

But the box and the intercooler are connected by a water hose...and the box has these valves. Do you see any signs for the air-air intercooler?

It defeats the purpose if it's so far away from the turbo' if it were a water intercooler.

Yes. But as stated in the intercooling thread, I strongly doubt that this is important at all in an F1 car. Here I think they just split the intercooler in two parts, because they have no room to fit the complete air-air intercooler with their setup of the standing radiators. So they just use the water to connect the two parts and are able to compensate the loss of efficiency by a bigger radiator.

I would like to know why this car's reliability is so poor. I think they had enough time to sort out their car, unless they are trying something very unconventional.

Update issues, not working BBW and burned cables...sounds just like problems you have without testing.

[PlatinumZealot]

Nobody noticed this pink elephant in the room:

LOTUS suspension is locate OUTSIDE of the chassis!
Look closely and you can see the regulated chassis frontal cross sectional area.. and look above that you will see that part of the suspension is located in a vanity panel.

[Owen.C93]

Yes I pointed it out a while ago. Marussia have the same setup.

[Lycoming]

What's the big deal about that? It isn't really that unusual to have suspension bits above the body and covered with a nonstructural fairing.

[flyboy2160]

Nobody noticed this pink elephant in the room:

LOTUS suspension is locate OUTSIDE of the chassis!.....

I'm with Lycoming; I don't see it as a big deal. The chassis may be even both stiffer and stronger by avoiding the holes in the sidewalls with inside- mounted pickup points. It also looks like a clever way to get the pickup points up high in case that's an advantage for their suspension design.

[Blackout]

Is the right hand torsion bar larger than the other? or are the rockers just different?

[alefocus00]

Hello everyone,

I know it could be out of thread and I'm sorry for that but did anyone notice something strange in pic of the E22 posted few comments ago? I'm pretty sure one of the exhaust runners is connected to the main (read single) exhaust pipe AFTER the turbocharger. Can that be?

Thanks!

[techF1LES]

Part of the Lotus t-tray - similar to that used by Red Bull RB9 last year.

[Blackout]

New floor with minor changes behind the turning vanes but with bigger changer on the diffuser.
And it seems the bodywork has gurney flaps only on the left hand edges!
Mat Sommers theory (or Turbo1?) might be right.
Sakhir
Sepang

[Rikhart]

Maybe the right hand gurneys flew off? They are sometimes only held by duct tape... That exhaust looks ridiculous btw, I cant see whats the point of making it that tortuous!

[Owen.C93]

Lecture on the design and development of the E22 is coming up.

http://www.f1technical.net/forum/viewto ... =6&t=18828

[Pilatus]

And it seems the bodywork has gurney flaps only on the left hand edges!

Cooling layouts are not symetrical.
So - why cooling outlets have to be symetrical?

[iotar__]

It doesn't look good. Amus Permane interview:
http://translate.google.com/translate?h ... 25190.html
- worst engine situation of all Renault teams (which was fairly obvious watching Caterham alongside it on straights in Malaysia), reason: turbine cooling
- MGU-K failures - mechanical on Renault side (correction to previous info)
- behind in many basic areas (breaking)

[zack!]

It doesn't look good. Amus Permane interview:
http://translate.google.com/translate?h ... 25190.html
- worst engine situation of all Renault teams (which was fairly obvious watching Caterham alongside it on straights in Malaysia), reason: turbine cooling
- MGU-K failures - mechanical on Renault side (correction to previous info)
- behind in many basic areas (breaking)

Not fair summary IMHO.
- TurboCharger cooling issue, correction on going, reason, late discovery because of testing start fail,
- Braking issue : data collected, Romain at simu right now to tune response to its driving preference,
- Engine operation optimisation late compare to other (ie : more power to come)
So, if i understand well what permane said, based on actual potential, in 2 GP, could be ahead of MCL and Williams, so in the top 4. Not so bad...

[Blackout]

Yeah he says
-The E22 was faster than the Mclaren and Williams in the fast curves
-the Lotus loses too much time in the braking zones and straight lines
-Downforce level is satisfiying according to GRO but aero balnce lacks stability
-learning how to improve the electric brakes has just started
The Lotus PU and power is behind the other Renault teams, mainly because the turbo is getting too hot
-the lack of testing is the main cause...
-Grosjean had a broken diffuser as we know and less power because he encountered a similar problem to Maldonado around the turbo's compressor
-Renault still struggling a bit with Kers to Ters energy transfer

what did they change:
-they got a new spec for the MGUK
-they changed many other things to make the PU's life easier (reduced vibrations, made gear changes smoother, improved pitlane and start engine revs, new mappings etc)
-inorder to unleash more power they'll need to change some internal parts, increase the size of some radiators, make other rads smaller etc.

So he says, in the PU area alone, they can unlock an awful lot of potential.

In Bahrain, they will test the updates they couldnt test in Melbourne and Sepang according to Chester.
Updates like these: (Piola 3d video)
http://www.auto-motor-und-sport.de/vide ... 25052.html

Maybe the right hand gurneys flew off?

And it seems the bodywork has gurney flaps only on the left hand edges!

Cooling layouts are not symetrical.
So - why cooling outlets have to be symetrical?

Interesting theories : P