1994 Acura Nsx Comptech Supercharged on 2040-cars

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2021 Acura TLX Long-Term Update | Tuneful turbo-four soundtrack

I used to be enamored with the turbocharged 2.0-liter engine format. I owned a 2004 Subaru WRX, with its turbo boxer mill, and liked it quite a bit, rough though it could be. Then turbo-fours, often displacing the same 2.0 liters, began replacing heavier and thirstier naturally aspirated V6 powerplants across the industry, and I was on board. Since then, they’ve become much more refined and responsive, all while their often uninspiring soundtracks faded into the background as automakers worked to improve the experience inside the cabin. TheyÂ’ve also become so ubiquitous that, apart from certain standouts like the turbo boxer in the Porsche 718, they ceased to be as exciting to me. Then AutoblogÂ’s long-term 2021 Acura TLX arrived in my driveway, equipped with a 2.0-liter turbo I4. I was excited about the styling and the handling, but I didnÂ’t expect this four-pot to make a huge impression on me. The first time I opened her up under wide-open throttle, though, I was pleasantly surprised. This 2.0TÂ’s 272 horsepower and 280 pound-feet of torque are ample motivation for this sporty sedan, even with all-wheel drive and a 3,990-pound curb weight. It wonÂ’t knock your hat into the back seat, but itÂ’s quick enough, especially in Sport mode. The thing that really won me over with this 2.0T, though, is the sound. Ripping to this thing's 6,800-rpm redline produces a melodious song that sounds a lot more exciting and expressive than most other fours. The cherry on top is the punctuated hiss of the turbo releasing its pressure when you get off the throttle. The amplitude of the engine note is manipulated using AcuraÂ’s Active Sound Control. As an Acura spokesperson explained it: “Active Sound Control uses the TLXÂ’s speakers (whether audio is playing or not) to add sound (same-phase or reverse-phase) to the cabin that smooths the sound of the engine heard inside the cabin. Engine noise doesn't increase in a linear way with rising revs; instead there can be many resonances that create peaks and valleys in the sound pressure level and an uneven sound. The level of ASC is tailored to each drive mode (Comfort, Normal and Sport).” Put another way, ASC is basically an electronic filter that can deaden or amplify the sound and smoothen it out, similar to how active suspension damping adjusts to the situation and drive modes to either let in more or less road feel, while actively eliminating the harshest of vibrations.

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 models no longer produced or sold in China

SHANGHAI — Chinese carmaker Guangzhou Automobile Group said on Monday its joint venture with Honda Motor is no longer producing or selling products under the Japanese firm's premium Acura brand. GAC will continue to provide after-sales services to Acura customers in China through the joint venture's network, it said in a statement to Reuters. The joint venture will continue to produce other Honda brands. Acura is the second foreign car brand to exit China, the world's largest auto market, in recent months. In October GAC said it was closing its joint venture with Stellantis, which made Jeep vehicles, following a sharp decline in Jeep sales in China over the past four years. GAC-Honda, which started producing Acura cars in 2016 in China, only sold 6,554 of them in the country in 2021, down 45% from the previous year. Related video: 2022 Acura NSX Type S track footage