2015 Acura NSX To Get Unique Longitudinal, Twin-Turbo V6: 2013 Tokyo Auto Show | Edmunds.com

2015 Acura NSX To Get Unique Longitudinal, Twin-Turbo V6

Just the Facts:
  • After months of speculation, Acura finally confirms that the new NSX will be turbocharged.
  • The 2015 NSX will also have three electric motors and a dual-clutch transmission with "more than six gears."
  • Unlike the first-generation NSX, the new Acura's engine will be mounted longitudinally.

TOKYO — Confirming months of speculation, Honda officially unveiled the 2015 Acura NSX's V6, armed with a pair of turbochargers.

Acura wouldn't confirm any details or specs on the car other than that the engine will be unique to the NSX and not simply an Accord motor in a pretty package. Just from looking, however, we can tell this V6 is just under 90 degrees and features dry-sump lubrication and direct injection. Assuming a displacement of 3.7 liters, combined with the car's three electric motors, 550 horsepower sounds reasonable, if not conservative.

But the big news here is how the engine is positioned within the car. Unlike the original NSX, the new production model will have its engine mounted longitudinally and not transversely.

Hideki Wakamatsu, Honda's operating officer and chief officer of technology development for drivetrain and e-drive told Edmunds that the change from a transverse layout to the longitudinal one happened recently after extensive testing, but that the change would not delay the anticipated on-sale date of 2015.

Not only does this layout simplify packaging (look at how much material is behind the engine now), but Wakamatsu says that the car is dynamically improved with this configuration.

The Ferrari 458 Italia and McLaren MP4-12C, two of the NSX's benchmark competitors, also use a longitudinal midengine layout.

Those of you who are familiar with NSX history will know that this isn't the first time an NSX has gone longitudinal, as the Super GT racing NSX also featured this layout.

Edmunds says: Switching a vehicle's drivetrain configuration during development is a massive undertaking, and proof perhaps that Honda is just as concerned as we are about the 2015 Acura NSX being as good as the original.



  • quadricycle quadricycle Posts:

    That's pretty large, I can see why it could create packaging issues. I would love to hear some more details on the engine (like weight!), but this will do for now. Can't wait for more.

  • samster231 samster231 Posts:

    I must not have been paying attention to this previously, as I do not remember this engine being turbocharged previously. IMO the move to forced induction takes this car to a higher tier and comparisons to a 458 or 12C are not wishful thinking. For me, it also completely erases the pain of the stillborne NA V-10, front engine NSX that came so close to seeing the light of day. As one of many well documented, broken hearted, grown up Honda fan boys....Honda you have got my attention back.

  • horsepwr1 horsepwr1 Posts:

    How long has Honda been teasing this car? Release it and stop talking about it...

  • duck87 duck87 Posts:

    Looks like Honda wants to stop screwing around.

  • fordson1 fordson1 Posts:

    I think comparisons to a 458 or 12C are still wishful thinking. These people have never made a real exotic, and their near-exotic, while nice, was finally abandoned ten years ago after it became outdated. Honda is a well-respected automaker with an engineering reputation, but as the saying goes, wishin' ain't havin'.

  • recreant24 recreant24 Posts:

    This article has made my day.

  • stovt001_ stovt001_ Posts:

    @horsepwr1: They've been teasing it for less time than Toyota teased the GT-86, and a hybrid turbocharged mid-engine supercar is a heckuva lot more complicated than a front-engine, RWD small basic sports car, so I think they're still alright. This has al

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