isv

Well running the tyre sizes it currently does the 675 is already loads faster than the 991RS..... No need for any wider ones...

jo_ker

there would come another engine producer in my mind: JUDD
they would be also from UK and those damn things are masterpieces. but racing engines...
drooool: http://juddpower.com/our-engines/judd-db-3-4-4-0l-v8/ (a modified BMW S65)

about engines: it seems that the Geneva P14 will still get the M838T. which is far away from old or bad - but thats the only engine they put in their cars since the restart of road cars... from MP4 to 675LT as in the 570 and the P1




2009: McLaren M838T

In 2009, McLaren selected Ricardo as a development and manufacturing partner for a new engine for road car applications. Ricardo - through FFD - had previously supported McLaren by supplying the production transmission for the original McLaren F1 road car.

The technical demands were challenging: the engine had to be the most powerful, the cleanest and the most efficient in its class. Just 18 months were available between design start and pilot production. With the deployment of world-class software tools, the basic configuration of the engine was soon established — a 3.8 litre twin-turbo V8 — and the use of design for assembly techniques helped avoid tricky stages in the assembly process.

With a total of over 400 Ricardo staff contributing to the project, both the engine and the state-of-the-art manufacturing facility at the Ricardo HQ in Shoreham were complete by the January 2011 deadline, and by the end of the year 1500 engines had been delivered. True to the specification, these engines did indeed combine remarkable power - 600 hp - in relation to their CO2 emissions of just 279 g/km. Power has subsequently been raised first to 625 hp and then to 650, and McLaren has since increased its contract to 5000 engines a year.

source: https://en.wikipedia.org/wiki/Ricardo_plc




The McLaren M838T engine is a 3.8 litre 90 degree twin-turbocharged flat-plane V8, designed and developed by in collaboration with Ricardo plc.

McLaren bought the rights to the Tom Walkinshaw Racing developed engine (based on the Nissan VRH engine) which was designed for the IRL Indycar championship but never raced. However, other than the 93 mm bore, little of that engine remains in the M838T.[2]

Developed with help from Ricardo with technology acquired from Menard Competition Technologies, it is McLaren's first engine.[3] The engine redlines at 8500 rpm, however 80% of the engine's torque is available as low as 2000 rpm.[4][5] McLaren claims that the engine has the highest horsepower to CO2 emission ratio of any current production engine.[6]

The engine is built at Ricardo's engine assembly facility in Shoreham-by-Sea, West Sussex.[7] The turbochargers are supplied by MHI, and are different units from those used in Mitsubishi Lancer Evolutions.[8]

Applications
The engine was designed and built for the McLaren MP4-12C, where it produces 441 kW (592 hp) and 632 N·m (466 ft·lbf). However, in 2012 McLaren released an update increasing power to 459 kW (616 hp). For the GT3 racecar, the engine produces less power at only 368 kW (493 hp).[9]

The engine has a bore and stroke of 93 mm × 69.9 mm (3.661 in × 2.752 in) and a bore spacing of 108 mm (4.252 in).[10]

McLaren and Ricardo redeveloped the M838T engine for use in the McLaren P1. The engine has been upgraded to optimise cooling and durability under higher loads. The engine block has also been modified to incorporate an integrated electric motor as part of a hybrid drive train. The petrol engine produces 542 kW (727 hp) at 7,200 rpm with an additional 131 kW (176 hp) from the electric motor. At 4,000 rpm the engine is said to produce 720 N·m (531 ft·lbf) of torque while the electric motor can produce a maximum of 260 N·m (192 ft·lbf) from 0 rpm upwards.[11]

source: https://en.wikipedia.org/wiki/McLaren_M838T_engine

jlee504

With prices of new a 650s within 10%-15% of a new 570s I've been wondering which do you pick?

I love the styling of the new 570 but like others have said the 650 performance is still head and shoulders above the 570. You get so much more...

Cj who is a good person to talk to at Scottsdale?

Maverick787

My buddy who has had 675, a few 650's recently had a 570S and sold it and got another 650S. He said he loves the 650S good all around car for what it's worth. He's owned two Turbo S Porsche's, and a GT3. It a fun car to drive, but I wouldn't by new.

fastmd

Get the 650s if its just for fun and not going to be a daily driver. The 570s or GT makes a great DD.

He got the yellow 650s back , is his tune done yet?

Maverick787

Ha ......Yup I think so on the tune! He loves that car. We'll see how long he keeps it.

jo_ker

720S / P14:

Chris3963

Holy smokes! Mclaren said it was going to be different to anything they have done so far....and boy is it!

Nizer

Better.

But this one is still my favorite: http://jalopnik.com/never-before-see...%28Jalopnik%29
.

NateOZ

I believe that is pretty close to the real car. I will get to see it on 2/15, but I'm told it will be a whole different level. I already put my deposit down on one and hopefully will get an early slot.

-eztrader-

The angle on the white shoot looks much better IMO.

What's the estimated price?

Alan Smithee

Surprising amount of 458 in the canopy, rear fenders, and overall proportions. A little disappointing...what I like about McLaren is that they don't typically follow the herd...

CAlexio

While we're on new car intros.. this looks to be new f12, with interesting aerobridge inlets by headlights exiting by fenders

Nizer

2820lbs=game changer. This will get me into Mac if true. Weight matters....

http://www.notey.com/@themanual_unof...edecessor.html

laranja

I really like how it looks like a high-school kid's mid-day doodling in #2 pencil

Mine were never that good, but not too far off...