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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 recalling 76,000 TSX sedans in certain cold-weather states

Parent company Honda is issuing a recall for Acura TSX vehicles from model years 2004 to 2008, for a rather interesting fault with the electrical systems (well, kind of). It seems that TSX made between during that range have carpeting that degrades when it becomes saturated with "corrosive materials for deicing." The carpeting is in contact with each Acura's electronic control unit, which may in turn rust or become corroded as a result. All of that business could cause the engine to stall.
Acura is singling out cars registered in states that use these corrosive deicing materials (presumably road salt): Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin and the District of Columbia.
Owners of affected vehicles will be notified by Honda and instructed to bring their cars into the nearest Acura dealership. Dealers will inspect the ECU for damage, replace if needed, and cover with a waterproof piece; all free of charge. Check out the official recall notice below.

Acura NSX owners receive custom short teaser movies of their personal car

In a neat bit of fan service for those who've ordered Acura's new NSX halo car, the company will make a short film that reflects the way the car's been configured. Those films are on their way to future owners as you read this. In addition, they'll get a 1:18 scale custom model of their own car, reflecting every appearance option inside and out. That's neat. So neat, in fact, that we decided to commission our own video. We got together and configured a car in the lovely Nouvelle Blue Pearl, and sent our build over to Acura. They put together a video that's mostly representative of what an owner would see. You can see our build plate (hint: it says "Autoblog – Precision Crafted By Performance Manufacturing Center" on it), and that's "our" car on the dyno starting about 22 seconds in. If you want to check out someone else's film, you can compare our build to Jay Leno's. The reason Acura can do this is that there simply aren't that many available configurations for the NSX. This is at the root of one of the main criticisms some of our editors have about the car. An NSX starts at darn close to $160,000, and there are eight paint options (not too bad), four interior color options, and three seating options. All well and good, but compare that to the 16 paint and 12 interior color/material choices in a 911 Turbo, for example, choosing a similarly high-performance car at a similar price range. And there's a further wrinkle: Porsche will paint your car to match a sample you provide, so in reality the ability for an owner to make the car uniquely theirs is infinite, if you don't mind paying for it. See also the BMW Individual program, or McLaren's MSO one-offs. We're not just talking about the MSO Defined options, but the MSO Bespoke program itself, which will basically do anything you want to the car as long as it's road legal and your check doesn't bounce. We've been to MSO, and they're not kidding: they'll build anything. So yes, these custom videos are nice fan service, and they'll certainly jazz up the buyers who've already ordered one of these dynamically impressive cars. It's a move that builds loyalty, and certainly doesn't have much of a drawback. But for us, already a bit sensitive to Acura's conservative option list for the NSX, it serves to highlight the gap between Acura and the more established brands in catering to well-off customers' desire for bespoke range-topping creations.