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Acura NSX will use Cosworth block, plus other neat tidbits

The blue NSX you see here was built just two weeks ago. Prototype number six, it rolled off Acura's newest assembly line in Ohio and was rushed out to the Monterey peninsula for various car week activities. We had a chance to sit down with several members of the NSX team to discuss the car, the long road from concept to production, and some interesting details. Below are some choice bits from our conversations. Acura is pretty proud of the fact that NSX version 2.0 was designed and is being built in the US. The new assembly line, called the Performance Manufacturing Center, is in Honda's hometown of Marysville, Ohio. While the line is brand new, the building has seen many uses over its lifetime, most recently as a warehouse facility. PMC staff numbers about 100, with 60 technical and 40 non-technical associates. The car uses parts sourced globally, and one of those sources is Cosworth. The engine blocks and heads come from the English firm and get assembled into twin-turbo powerhouses at Honda's nearby Anna, Ohio, engine plant. The Cosworth name is rarely associated with a bad engine, so we were geeked to hear the NSX's 550-plus-horsepower hybrid powertrain has good genes. Acura hasn't decided how many cars will come to the US each year, but supplies will be limited. We're told there is a total figure for global sales – basically anywhere Honda and Acura vehicles are sold – but they're not ready to divulge that number. Dealer allocation is also yet to be sorted out, although we're told that any dealer that has the necessary tools and equipment to service the new NSX will be able to sell them. Acura currently has 272 US dealers. The switch from the transverse engine originally planned to a longitudinal twin-turbo engine threw everyone involved for a loop. The designers had to lengthen their nearly finalized design, and the engineers working on the production process had to revise or redo much of their work. Though we've been waiting a while for the car since the concept first surfaced in 2012, it's pretty amazing to think that the car was engineered one and a half times and a new factory was built in about three years. But yeah, it's delayed, with series production now set to commence in the spring of 2016. One result of the switch to a longitudinal engine is a transmission hump in the cargo area aft of the engine. The hold is still sized to fit a bag of golf clubs, though it will be a tight fit.

Acura is getting back into the performance game

Acura has had a tough time over the last few years determining its identity, but it seems that the brand is now settling on providing performance. At the Detroit Auto Show, Acura announced an expansion of the A-Spec trim, the revival of the Type-S moniker, and a new engine. That new engine is particularly interesting since it's a turbocharged V6, and only Acura will be using it. So don't expect to see some sort of Accord Type R with a crazy V6. Acura also revealed the engine will only be used with the company's Super Handling All-Wheel Drive (SH-AWD). Type-S is another big deal, since no Acuras have worn the badge since the 2008 Acura TL Type-S. It will be a step above the current A-Spec trim, which is mildly sporty. Past Type-S models have always had the most powerful engines available. The company didn't give an estimate for when the Type-S trim will appear, nor what model will get it first. All new Acura models will have an A-Spec option in the future. The first new A-Spec addition will be the TLX with the 2.4-liter four-cylinder. The V6 version already has an A-Spec option. After that TLX, the new RDX will launch with an available A-Spec trim. The company already announced the RDX will have a version of the 2.0-liter turbo four-cylinder from the Civic Type R and the Honda Accord connected with a 10-speed automatic and SH-AWD. An Acura representative said that the engine has been reworked for the RDX, and it will make more power than the Accord with the 2.0-liter engine. Related Video:

2020 Acura NSX Suspension Deep Dive

The Acura NSX has been a special car as long as I’ve been in the business. The first one came out in 1990, the same year I started my career in automotive engineering. I vividly remember driving one briefly back then when we brought one in for benchmarking. I'd drive it again 22 years later when my previous employer bought a used 1991 example for a long-term test. Reader interest was sky-high and the car was still gorgeous, but the march of time and automotive engineering had clearly left it behind. Then, in 2016, a second-generation NSX emerged, and it was packed with bleeding-edge thinking. It has a 3.5-liter twin-turbo V6, but this new NSX is a hybrid with an electric motor-generator sandwiched between the engine and its nine-speed DCT transmission. Two more electric motors – one for each wheel – power the front axle. There they can add traction, regenerate electricity under braking and dole out hyper-accurate levels of torque vectoring. The carÂ’s tire package was changed from Continental SportContact 5 to SportContact 6 tires in 2019, and numerous suspension re-tuning tweaks came along with them. The result is a lively and well-balanced car that is relentless when driven hard and a pussycat around town. LetÂ’s see what theyÂ’ve got going on under there.   At first glance the 2020 Acura NSX appears to have dual wishbone front suspension. But we canÂ’t tell for sure because that big two-piece brake rotor is in the way. The coil-over shock looks obvious, but a few odd details are apparent even from here.   This view also seems to indicate double wishbone suspension. But the pivot axis (green arrow) between the upper and lower ball joints looks wrong – itÂ’s far too vertical. WeÂ’re missing something. But I would be remiss if I failed to point out a few other things before we moved on. For one, the front drive axle confirms this to be an all-wheel-drive machine. Second, the forged aluminum damper mounting fork (yellow) that envelops the axle is mounted to the lower arm about 75% out from the armÂ’s inner pivot. The spring and damper motion ratio would be 0.75-to-1 relative to wheel movement, with a tiny reduction due to its lean angle. Lastly, just look at the huge cast aluminum upright (white). Beautiful. Normally these are called hub carriers or steering knuckles, and I use the terms interchangeably. But the motorsports-derived term upright is normally applied when the piece is tall and, well, upright like this one.   This explains everything.