2008 Acura Rdx Base Sport Utility 4-door 2.3l on 2040-cars

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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 builds 345-horsepower RDX A-Spec for SEMA

The 2019 Acura RDX is great — a return to form for the sporty compact luxury crossover. So there's no real harm in giving one the SEMA treatment, especially since it entails a real motorsport tie-in and some legitimate performance parts. As for the giant graphics, well, it's SEMA after all. Graham Rahal races for Honda in the IndyCar series, and he also has his own performance parts company — named, sensibly enough, Graham Rahal Performance — which he started in 2017. They sell some private-label bits manufactured by other companies to their spec, some off-the-shelf parts, and they do tuning and installation work on customer cars. Acura gave the job of building the SEMA RDX to Rahal. There's a fair bit going on under the hood to get the RDX to 345 horsepower from the factory 272 ponies. The 2.0-liter turbo engine gets a bunch of enhancements. The turbo, intake, exhaust manifolds, downpipe, and cat-back (a GRP design) are all aftermarket. There's a customer intercooler, too. KTuning did the ECU with a custom map. On the handling front, the RDX wears Eibach springs, StopTech brakes, HRE wheels at 21 inches, and Michelin Pilot Sport 4S tires. The RDX started life as an A-Spec model in Apex Blue Pearl, and from there GRP applied carbon fiber garnish to the mirrors, grille accents, and lower fascia. Troy Lee Designs did the exterior graphics, and inside there's more carbon fiber and a custom steering wheel (courtesy of Max Papis's MPI Innovations shop). The RDX will be on the show floor if you'd like to check out the Rahal shop's handiwork. Related Video:

Motorweek goes retro with '80s hot hatch shootout

Motorweek's decades of history on television make it the perfect medium to look back into the automotive past and see how things are different now. It recently added old road test videos to its YouTube channel of the Acura NSX and Toyota Supra, as well as the Ferrari F40. For one of its newest flashback clips, Motorweek has exhumed an affordable five-car challenge of 1986's premiere hot hatches.
By today's standards, this is an eclectic field that features fondly remembered classics like the Volkswagen GTI 16-valve and Acura Integra. However, it also throws in some nearly forgotten contenders like the Dodge Colt Turbo and Ford Escort GT. The angular Toyota Corolla FX16 GT-S rounds out the group.
It's fascinating to watch Motorweek run the quintet through the slalom, down the drag strip and on various roads. What's most striking in this clip is the difference in the definition of a performance car between then and now. With its 16-valve, 1.8-liter four-cylinder, the GTI is the burliest of the contenders with 123 horsepower, but it still takes 8.8 seconds to reach 60 miles per hour. By today's standards, that would make it a plain-jane economy car, and not even a particularly quick one.