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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.

Acura Pikes Peak lineup is out, and there's a race-prepped MDX Sport Hybrid

Acura is coming back to Pikes Peak for the 2019 edition of the hillclimb, and it's bringing four vehicles to attack the mountain. Not the fastest, but perhaps the most interesting of the bunch is a race-prepped 2019 MDX Sport Hybrid. Engineers took the 3.5-liter V6 from the non-hybrid version (Hybrid has a 3.0-liter V6) of the MDX and bored it out to 3.7-liters. It then works together with Acura's three-motor hybrid system for a combined 400 horsepower and 350 pound-feet of torque. Shifting is still done by Acura's 7-speed dual-clutch transmission. The extra power is thanks to the larger displacement and special tuning for the engine and electric motors. Further upgrades to the MDX include a race-tuned active-damper suspension system and a roll cage. Acura says it goes a long way to increase structural rigidity. Additionally, Acura removed most of the vehicle's interior, including every seat but the driver's seat. Piloting the MDX is Jordan Guitar of Acura R&D's chassis development team. A couple NSXs, one "Time Attack" car and one mostly stock, will also run up the mountain. The Time Attack NSX has more power from larger turbos, bringing the system output up to 625 horsepower. Weight-saving measures have dropped 200 pounds from the structure, and there's plenty more downforce thanks to a big wing front splitter. Not much has been done to the production-spec NSX, as it simply adds a roll cage and racing seat with a harness. The Acura RDX that ran up the mountain last year is returning for this 2019 run. It features a modified 2.0-liter turbo that makes a respectable 350 horsepower and 330 pound-feet of torque. That extra power comes courtesy of a larger turbocharger, short-path intercooler and an electric supercharger. Can we have all that for production, please? The last Acura in the field is the same RealTime Racing TLX GT that won its class last year. There's one more NSX that'll be going up and down Pikes Peak, but not in anger. Acura is providing an NSX to act as the official pace car of the event, and it's predictably painted in the easy to pick out Thermal Orange.

Acura may go all AWD in bid to mimic Subaru's success

Acura's struggles have been well publicized. The Honda-owned luxury brand doesn't seem sure of where it's going or what it's trying to accomplish, with its cars and marketing lacking a coherent theme. Now, a new report from Automotive News claims that the brand could follow the success of Subaru and (to a lesser extent) Audi, and adopt all-wheel-drive as standard across its model range.
"I think that's the way we should go," Acura boss Koichi Fukuo told Automotive News.
Acura already offers some form of all-wheel drive on every vehicle in its line aside from the lamentable ILX sedan. That could change as Acura begins rolling out next-generation versions of its still relatively new stable of sedans and crossovers.