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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.

1997 Acura SLX gets 350 actual Acura horsepower for Radwood

For the Radwood Orange County, Calif., car show, a show themed around 1980s and 1990s cars, Acura is bringing a variety of its original models including a 1991 NSX and a 1986 Integra. The company is also bringing something obscure, a 1997 Acura SLX, the brand's first SUV, offered from model years 1996 to 1999. In some ways, it's something Acura might not want to highlight, since it's really a rebadged Isuzu Trooper, just as the original Honda Passport was a rebadged Isuzu Rodeo. But this SLX is special; it has real Acura power under the hood. The project was led by Acura engineers and Pikes Peak racing drivers James Robinson, Paul Hubers and Jordan Guitar, and the frame and body restoration as well as the powertrain swap was done entirely in-house at Honda R&D in Ohio, according to Acura rep Andrew Quillin. The team pulled out the original naturally aspirated 3.2-liter V6 that made just 190 horsepower and 188 pound-feet of torque, and dropped in a turbocharged 2.0-liter inline-four from a new Acura RDX. That engine also received a new intake, exhaust, turbo and ECU tune, which brought power up to an estimated 350 horsepower and 340 pound-feet of torque, similar to the Graham Rahal Performance RDX. Not only that, but the old-school four-wheel-drive system and live rear axle were dropped in favor of the RDX's indpendent suspension and torque vectoring "Super Handling All-Wheel Drive." "Dropped in" is a mischaracterization, though, as Acura had to weld new subframes front and rear to the existing frame to get the transverse engine and modern suspension to fit. Acura was careful to keep the SLX looking as close to the original as possible. On the outside, Acura repainted the SLX in a modern red paint available on the RDX, but retained the champagne lower moldings. The stock wheels were replaced with 17-inch Fifteen52 wheels, but they have a very similar design and finish to the original wheels. A hard-shell spare tire cover was added, and a simple "SH-AWD" badge on the back is the only hint at what's under the body. The interior was restored at the company's L.A. design studio, where the upholstery was redone in a gray "gathered" leather like you would have seen when it was new. A bit of gray wood trim updates the interior slightly. The RDX's push-button starter and shifter buttons have been added to the center console, shift paddles behind the original steering wheel, and an aftermarket instrument cluster mounted to the steering column.

2021 Acura TLX First Drive | The mojo is returning

Buildup for the 2021 Acura TLX started more than a year ago when Acura released the stunning Type S Concept. It was long, low, wide and graced with gorgeous rear-drive proportions. Plus, it was slathered in some of the best blue paint we’ve ever seen. Acura could not have thought of a better way to say, “Hey, weÂ’re back!” ItÂ’s no surprise that the Type S Concept is a dead ringer for the production TLX. Acura designers told us the car was just about finished when the concept debuted. So yeah, the new TLX and TLX Type S were always going to look this good. The latter won't be arriving until next spring, but our first drive of this next-gen base TLX has us hopeful for the Type S and its 3.0-liter turbocharged V6. And maybe just a little nervous, too.  The bones are really good. Acura developed a new, unique platform for this TLX that was built with performance in mind from the get-go. It's not just an Accord in a fancy suit. With crossovers on the rise, Acura says its shrinking number of sedan buyers are more passionate about driving dynamics than crossover buyers, allowing them to focus on performance to an even greater degree. It makes sense. We heartily approve. The result of this performance focus is the most rigid body in any Acura not named NSX. YouÂ’ll find more advanced materials like aluminum and press-hardened steel in its makeup than any previous Acura sedan. It has a wider track (+1.2-inch front and +1.6-inch rear), a 2.2-inch wider body, a 3.7-inch longer wheelbase and a 0.5-inch shorter height. Lastly, the dash-to-axle dimension is 7.8 inches longer, giving it those sweet rear-drive proportions despite being a front-wheel-drive platform. 2021 Acura TLX Advance View 38 Photos If you're expecting more rear passenger and trunk space with the extended length, keep looking. Rear legroom is up 0.4 inch, and trunk space by 0.3 cubic-feet to 13.5 – paltry gains for how much larger the car got. The size growth benefitted style and body proportions more than it did functional considerations. Then, thereÂ’s the new suspension: double wishbones up front and a five-link rear. Acura previously used a MacPherson strut design in the front suspension and the move back to a double-wishbone design is great news for driving enthusiasts. Acura's well-regarded TL and TSX of the mid-2000s had double wishbones up front, as did many of Honda's greatest hits of yesteryear (Integra, Prelude, Civic Si, etc.).