Gallery: The McLaren MP4-12C Engine

Edward Niedermeyer
by Edward Niedermeyer

In the early days of McLaren’s MP4-12C development, it was suggested that the new mid-engine supercar would use AMG’s 6.2 liter V8. As things got awkward between Mercedes and McLaren though, a mysterious “German-built V10” was rumored to be have replaced the AMG unit under at least one testing prototype. In the end, McLaren built its own engine, the M838T. It’s a twin-turbocharged, direct-injected, 3.8 litre, 90° V8, developing about 600 horsepower at 8,500 RPM. 80 percent of its 442 lb-ft of torque is reportedly available under 2,000 RPM. Also, it looks like mechanical sex.



Edward Niedermeyer
Edward Niedermeyer

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  • Brett Woods Brett Woods on Aug 30, 2010

    Interesting that McLaren chose 90 degrees of V out of all the possibilities. Could I order the engine only for my Locus Plethore?

  • DavidGTR DavidGTR on Jun 03, 2012

    Its a late reply.. but I finally test drived the MP4-12C yesterday! Its the fastest factory road car I ever tested . The car handles brilliant, carbon fiber monocell results a road car with a go-cart like handling.. I would say, the cornering limit of the car is very high. I switch everything into "track mode", I didn't feel the car bumpy at all, this is a result of a piece of engineering art work, lightweight and high power super car. Engine with turbos weights around 150kg . But the car has big turbo lag comparing with GTR, but top ends it will beat the GTR for sure due to V8 fitted with high flow turbos. One thing have to say good about the gearbox . The gear shift is seamless and smooth. This is the best gearbox I ever driven comparing with all other double-clutched gearboxes (like PDK, DSG) . Even with stand still start, the electronic clutch is very smooth. This shows Mclarens effort in their software engineering for clutch control during launch. Braking power..... absolutely amazing . With the car's weight, it just brakes like a cart with carbon ceramic brakes and 6 piston calipers . Overall, good race car, but difficult to sell....

  • Honda1 Unions were needed back in the early days, not needed know. There are plenty of rules and regulations and government agencies that keep companies in line. It's just a money grad and nothing more. Fain is a punk!
  • 1995 SC If the necessary number of employees vote to unionize then yes, they should be unionized. That's how it works.
  • Sobhuza Trooper That Dave Thomas fella sounds like the kind of twit who is oh-so-quick to tell us how easy and fun the bus is for any and all of your personal transportation needs. The time to get to and from the bus stop is never a concern. The time waiting for the bus is never a concern. The time waiting for a connection (if there is one) is never a concern. The weather is never a concern. Whatever you might be carrying or intend to purchase is never a concern. Nope, Boo Cars! Yeah Buses! Buses rule!Needless to say, these twits don't actual take the damn bus.
  • MaintenanceCosts Nobody here seems to acknowledge that there are multiple use cases for cars.Some people spend all their time driving all over the country and need every mile and minute of time savings. ICE cars are better for them right now.Some people only drive locally and fly when they travel. For them, there's probably a range number that works, and they don't really need more. For the uses for which we use our EV, that would be around 150 miles. The other thing about a low range requirement is it can make 120V charging viable. If you don't drive more than an average of about 40 miles/day, you can probably get enough electrons through a wall outlet. We spent over two years charging our Bolt only through 120V, while our house was getting rebuilt, and never had an issue.Those are extremes. There are all sorts of use cases in between, which probably represent the majority of drivers. For some users, what's needed is more range. But I think for most users, what's needed is better charging. Retrofit apartment garages like Tim's with 240V outlets at every spot. Install more L3 chargers in supermarket parking lots and alongside gas stations. Make chargers that work like Tesla Superchargers as ubiquitous as gas stations, and EV charging will not be an issue for most users.
  • MaintenanceCosts I don't have an opinion on whether any one plant unionizing is the right answer, but the employees sure need to have the right to organize. Unions or the credible threat of unionization are the only thing, history has proven, that can keep employers honest. Without it, we've seen over and over, the employers have complete power over the workers and feel free to exploit the workers however they see fit. (And don't tell me "oh, the workers can just leave" - in an oligopolistic industry, working conditions quickly converge, and there's not another employer right around the corner.)
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