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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.

Hondata's 2019 Acura RDX tune brings the mid-range torque

One of the big advantages to the era of turbo Hondas is that there's plenty of horsepower and torque left on the table for tuners to take advantage of. One of those companies is Hondata, and following its upgrades for the Civic and Accord, it's now tuning the Acura RDX luxury crossover. The RDX uses a turbocharged 2.0-liter engine similar to those in the Accord and the Civic Type R. In stock form, it makes 272 horsepower and 280 pound-feet of torque. With Hondata's Stage 1 tune, the company says that horsepower increases by about 10 across the rev band. Looking at the dyno graph, it also appears that peak horsepower increases by about 5 horsepower, and peak torque is up by about 15 pound-feet. Peak torque also appears to arrive sooner, and most of the torque curve seems to be up by 10 to 15 pound-feet. The increases in power and torque are available in all four of the RDX's drive modes. The Stage 2 tune increases power torque even more in Sport and Sport+ modes, and keeps Snow and Comfort modes at Stage 1 settings. Peak horsepower looks to be up about 10 over stock, but the mid-range sees as much as a 28-hp increase. Peak torque sees a huge jump of about 45 lb-ft over stock based on the dyno chart, and it's available even lower than the Stage 1's peak torque. If this all sounds good to you, you can order up a Hondata FlashPro computer for your RDX right now. It costs $695 and comes with the handheld computer for uploading or removing tunes. RDX owners in California should note that neither tune is currently CARB legal. Related Video:

Acura is launching an all-out assault on Pikes Peak

  Acura is gunning for multiple trophies at Pikes Peak later this month, sending no less than six vehicles to the famed hillclimb event. The fleet consists of two NSX race cars, two TLX Type S race cars, a TLX Type S pace car, and the 2022 MDX Type S making its first public debut. The all-volunteer team comprising Acura employees will be towing the more potent of the TLX race cars 1,300 miles from its base in Ohio to the Colorado venue with an MDX Type S. While a stock TLX Type S weighs 4,221 pounds, a mass that's pretty close to the 355-horsepower, 354 pound-foot flagship's towing capacity of 5,000, the race car is considerably lighter.  Honda put the TLX Type S on a 600-pound diet, gutting the interior and replacing parts with lightweight components like a carbon fiber hood. Naturally, aerodynamic aids like splitters, canards, and spoilers festoon the race car. On top of that, the 3.0-liter V6 it shares with the big brother MDX Type S has been modified with a with a larger turbo and additional cooling to account for the thin air approaching the 14,000-foot summit. Acura engineer Justin Lumbard will helm the TLX in the Pikes Peak Open Division, in which an Acura TLX GT race car holds the record of 9:24.433, set by Acura race veteran Peter Cunningham in 2019. Meanwhile, chassis engineer and cool-name-haver Jordan Guitar will be piloting the other TLX Type S, a more stock version with only a 300-pound diet. Both cars wear race-modified suspensions and HRE 19-inch 19 x 9.5-inch wheels wrapped in Pirelli slicks. Likewise, the NSX pairs comprise one hard-core racer and one mostly stock car each, allowing Acura to pursue wins in multiple classes. Drivers and brothers James and Nick Robinson are no strangers to Pikes Peak records. James helped Acura clinch the Hybrid Class record with a time of 10:01.913 in an NSX last year, and is now shooting for a Time Attack 1 Division championship. His NSX puts out around 625 horsepower thanks to larger turbos and reprogrammed engine software. A front splitter, large rear wing, 200-pound weight reduction are just some of the race-prep modifications. Meanwhile, Nick holds the front-wheel-drive record, set in 2018 with a first-generation Acura TLX and a time of 10:48.094. This year, Nick is behind the wheel of an NSX that's all stock — aside from safety equipment and race tires — in the hopes of achieving a Time Attack 2 production record attempt.