Nissan LMP1 Discussion

[MitchZ06]

I'd be curious to know what the performance difference would be between this car and a proper all wheels same width mechanical AWD version of it.

[cokata]

Also from the video you can see when the flywheel boost kicks in out of a corner there is a pretty violent torque steer that the driver has to fight. That might make longer stints hard to achieve.

[CTD]

I also noticed that the drivers visibility in the turn in of a right corner is very poor. Almost impossible to see the apex.

[MyNameIsNigel]

Interesting video answering a few questions about the Nissan GT-R LM engine layout.

This should in particular clarify where the intercoolers are located, namely immediately below the turbos:

[miatanut]

Originally Posted by MitchZ06

I'd be curious to know what the performance difference would be between this car and a proper all wheels same width mechanical AWD version of it.

That would be significantly slower, because the wider rear wheels would destroy the low drag concept at the rear. A version like that probably couldn't keep up with a P2.

[bjohnsonsmith]

Originally Posted by CTD

I also noticed that the drivers visibility in the turn in of a right corner is very poor. Almost impossible to see the apex.

I noticed that as well, the right pillar gets in the way but I wondered how much that had to do with how the camera was attached to the helmet.

[YorkshireLad]

Originally Posted by MyNameIsNigel

Interesting video answering a few questions about the Nissan GT-R LM engine layout.



This should in particular clarify where the intercoolers are located, namely immediately below the turbos:

Where are they receiving cold air from? They look more like a type of charge cooler.

[CTD]

Very short video from Top Gear, on Facebook:
https://www.facebook.com/video.php?v=10155293377395571

[wolfhound]

Originally Posted by YorkshireLad

Where are they receiving cold air from? They look more like a type of charge cooler.

It uses water to cool the air with seperate water rads. It can be more compact than normal air to air intercoolers.

[CyberMotor]

Originally Posted by CTD

Very short video from Top Gear, on Facebook:
https://www.facebook.com/video.php?v=10155293377395571

Thanks! That's one packed front end. There's no room left for anything else. Hope they remembered everything!

[chernaudi]

Originally Posted by MyNameIsNigel

One thing for sure, the Nissan GT-R LM was not designed with a view to provide the most comfortable seating position to its drivers. A more "conventional" LMP1 arguably provides a far better seating position as highlighted for instance in the R18 cut-away:


I do hope that a tall driver like Harry will not suffer too much from this rather awkward seating position.

Not really pertaining exclusively to Nissan, but wasn't part of the LMP1 regs discouraging the extreme "fastback" roofline and the taller roof to try and encourage teams using a more upright driving position to improve visibility.

I know that it's just a dummy to represent Dindo in the cutaway car, but when you consider that TK is the same height as Dindo and you compare headspace in the cars, Audi doesn't seem to have changed their driving position much, and I doubt that Toyota did either even with the TS040 having a nearly identical roofline to the 2014 R18:



And compared to both the 2012/2013 and 2014 R18s, the Nissan's driving position, even allowing for Harry's height, looks almost impossibly cramped. Andre Lotterer (at 6'1") is one of the taller drivers racing in LMP1 period, and he's had no issues with seating in the Audi tubs, and Alex Wurz, who's at least 6'3" (some sources have placed him as being as tall as 6'5") has had no issues with sitting in any of the Toyota tubs.

The Nissan's cockpit seems to be really cramped by comparison to the Audi, Toyota and Porsche set ups.

[TF110]

Toyota changed the seating position in 2013 to reflect the more upright position of '14+ regs.

[GTfour]

Originally Posted by gustavobamba

They will need some very strong front tires.

Depending how "stretched" the gear´s are... I bet 330-340 km/h… probably it´s not enough, because Audi, Toyota and Porsche will be aroud 350 km/h if not more :-)

Audi had a hard time breaking the 330 barrier, let alone '350 if not more'.
Toyota came reached just shy of 345kph. If Nissan can really crack the 360 barrier, they'll have a huge advantage over the high downforce competition.

[joeb]

Nissan has arrived at Sebring for some testing according to Shea Adam on Twitter. Could they be sharing the track with Audi?

[MyNameIsNigel]

Originally Posted by joeb

Nissan has arrived at Sebring for some testing according to Shea Adam on Twitter. Could they be sharing the track with Audi?

Yes they will

[gustavobamba]

Originally Posted by GTfour

Audi had a hard time breaking the 330 barrier, let alone '350 if not more'.
Toyota came reached just shy of 345kph. If Nissan can really crack the 360 barrier, they'll have a huge advantage over the high downforce competition.

Hello, please read the post #7759 from "Audi LMP1 Discusion"

Then you will see what i´m talking about

[tjh8402]

Originally Posted by joeb

Nissan has arrived at Sebring for some testing according to Shea Adam on Twitter. Could they be sharing the track with Audi?

So have we confirmed that they and Audi will be on track tomorrow? I was going to head down to Sebring if they were.

[joeb]

Originally Posted by tjh8402

So have we confirmed that they and Audi will be on track tomorrow? I was going to head down to Sebring if they were.

We have seen pics of Nissan there, bit don't know their schedule. Also don't know Audi's schedule or whether they have arrived yet.

[MyNameIsNigel]

Audi and Nissan are both expected to test at Sebring for five days starting tomorrow (source: motorsport-total.com).

[chernaudi]

Sportscar 365 has confirmed that Audi and Nissan are on the ground at Sebring. SC365 also has some photos of the Nissan GT-R LMP1, including one of the engine outside of the car:

http://sportscar365.com/lemans/wec/a...ng-at-sebring/

[Lanky Turtle]

I plan on being down there the next 2 days so I hope the gates are open at least. I'm surprised they're set up already as there's a Trans Am race and SVRA there today. It looks like Audi is set up over in Green Park like the Indycar teams do.

[MyNameIsNigel]

First time we get a chance to see the front end of the tub with the engine removed:


(source: endurance-info.com)

[GT6]

Originally Posted by Lanky Turtle

I plan on being down there the next 2 days so I hope the gates are open at least. I'm surprised they're set up already as there's a Trans Am race and SVRA there today. It looks like Audi is set up over in Green Park like the Indycar teams do.

Please keep us informed of what the Nissan looks and sounds like and how it goes

[hcl123]

The engine like Audi also has the exhaust top inside of engine V, and has 2 admission manifolds with liquid-to-air intercoolers, both sides of the V... but unlike Audi is bi-turbo...

And there is a reason why the driver must have his knees so high... a 'firewall' (metal plate) between driver and engine... even so can be a problem in a front ugly crash, or if the engine blows up(wouldn't like to be the driver when that happens).

[TF110]

Originally Posted by hcl123

The engine like Audi also has the exhaust top inside of engine V, and has 2 admission manifolds with liquid-to-air intercoolers, both sides of the V... but unlike Audi is bi-turbo...

And there is a reason why the driver must have his knees so high... a 'firewall' (metal plate) between driver and engine... even so can be a problem in a front ugly crash, or if the engine blows up(wouldn't like to be the driver when that happens).

No. The drivers legs are high up because the flybrid system is housed underneath. The driver is so far back, a crash would hardly hurt him. They have crash structures for that reason. Not a firewall.