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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 NSX bodywork to be sheathed in zirconium e-coat, fewer paint layers

Automakers make halo cars to drum up excitement and show off what they can do, but there's more to it than that. Advanced platforms allow a company's engineers to experiment with all sorts of technologies. And in the case of the upcoming new Acura NSX, that includes new paint processes.
Speaking with Autoline in this video interview, Honda's North American Senior VP Jon Minto talked about an innovative zirconium e-coat which it's applying to the new NSX. Unlike some experimental paints developed for Formula One, however, this coating is not designed to minimize drag or enhance cooling: it's designed to be more environmentally friendly.
It's one of a few measures which Honda is implementing on the NSX before expanding it to more accessible models, along with another process that uses fewer coats to reduce energy consumption by 40 percent. Watch the interview with Autoline host John McElroy right here.

2021 Acura TLX Long-Term Update | A surprise upgrade

That may look a lot like our long-term 2021 Acura TLX A-Spec, but in this case, your eyes deceive you. Say hello to our not-so-long-term TLX Type S, which is subbing in for the A-Spec while the latter undergoes a little exploratory surgery to diagnose what appears to be an escalating electrical issue.  Yes, our handsome blue steed is currently lame. What first manifested as odd transmission behavior and the occasional infotainment reboot escalated to the vehicular equivalent of a grand mal seizure on a rainy Michigan day, resulting in a flat-bed ride to the dealership and fast-tracking our plans to get the TLX in for a diagnosis. So, for the foreseeable future, I'm enjoying an extra two cylinders and nearly 100 more horsepower. All upsides, right? To a degree. While the extra power is certainly welcome, it comes at a cost – 200 pounds, give or take. That extra weight erodes some of the qualities I appreciate most about our long-term A-Spec. Acura really nailed the front-end feel of the TLX with the A-Spec, and while the Type S still feels pretty good, the added mass over the nose is inescapable. And while the 20" Type S wheels look fantastic, they make the already firmer suspension feel almost unnecessarily crashy. The 19s on the A-Spec are the sweet spot (picking up on my thesis?) but even I must admit the Type S wheels look significantly better.  On paper, this 3.5-liter V6 matches up reasonably well with the rest of the premium turbo-sixes on the market, but in the real world, it's a bit uninspiring, and not just in the too-competent-for-its-own-good way BMW's mainstream I6s tend to be. There's plenty of power and torque, but I've yet to experience one of those "ah-ha!" moments where the whole package suddenly makes sense.  In fact, I spend more time pining for the lighter, nimbler A-Spec than I do yearning for the open space I'd need to let the V6 run free. In this, I think I'm rowing against the Autoblog current; others' reviews of Acura's muscular six-cylinder have been far more enthusiastic. Be that as it may, I appreciate the way the A-Spec drives like a smaller car than it is. Related video: 2021 Acura TLX 2.0-liter turbo-four soundtrack | Autoblog