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Acura NSX to race in GT3 or GTE

Honda is reportedly planning to roll out a racing version of the new Acura NSX. It just hasn't decided yet on which class it wants to enter it into, to whose specifications it will build it, and which department will be tasked with the project. The original NSX competed principally in Japan's own Super GT series. So did the subsequent HSV-010 GT that was originally designed to be the NSX's replacement. But Acura's new supercar is as much an American vehicle as a Japanese one, and as such it looks more likely to compete on American soil. The options which Honda is considering boil down to GTE and GT3. What's the difference, you ask? Until just a few years ago, international sports car racing was split between GT1, GT2, GT3, and (to a lesser extent) GT4 classes. GT1 was phased out in 2009, GT2 was reformatted into GTE (with both Pro and Am categories), while both GT3 and GT4 carried on. Today GTE is run at the 24 Hours of Le Mans and its associated championships around the globe: the FIA World Endurance Championship, the European Le Mans Series, the Asian Le Mans Series, and the United SportsCar Championship. Meanwhile GT3 is run in series like the Blancpain Endurance Series and a growing number of regional championships. (GT4 is run in lower-level series for amateur racers.) Acura currently runs the TLX-GT in the Pirelli World Challenge here in America. But as the series moves to GT3 specifications as well, the company is facing the decision of either adapting the existing racer to the new regulations (and coming away with a potentially compromised package), or replace it entirely. The NSX could prove just the ticket, however the GTE class may ultimately give it more exposure. Whichever rulebook Acura opts to play by, it likely won't be running under hybrid power – an element which would add complication but not necessarily much benefit under current regulations. The automaker will also have to decide who will develop the new NSX racer, with both California-based Honda Performance Development (HPD) and Italian outfit JAS Motorsport (which fields Honda's WTCC team) eyed as potential candidates. Related Video:

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.

Honda, Acura recall 450,000 cars for seatbelt issue

Honda is recalling nearly half a million Honda and Acura vehicles to address an issue that can prevent passengers from latching their seatbelts. The campaign covers most of the mainstream brand's popular family cars, including the CR-V, Accord and Odyssey. Per the company's report, normal wear and tear can cause the driver and passenger seatbelt release buttons to bind, preventing the latches from properly engaging.  "The seat belt buckle channel [sic] for the driver and front passenger seat belts were manufactured out of specification, causing interference between the buckle channel and the release button,"  Honda's report to NHTSA said. "With continuous use, the buckle channel surface coating may deteriorate over time, and the release button may shrink against the channel at low temperatures, increasing friction. This can result in issues with the seat belt buckle latching." Here is the full list of cars and model years included in the campaign: 2019-2020 Acura RDX  2018-2019 Honda Accord/Accord Hybrid  2017-2020 Honda CR-V  2019 Honda Insight  2018-2020 Honda Odyssey Honda said that the problem first surfaced back in 2019 and that the company has received more than 300 warranty claims related to the problem. No injuries or fatalities have been reported. Owners will have replacement parts installed free of charge. Honda says notices should be distributed to owners starting in April.  Related video: Recalls Acura Honda Ownership Safety