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Clarion Builds 1991 Acura NSX Review | Restored to greatness

Few automobiles garner as much mystique as the original Acura NSX. I worshiped this car from afar, consigned to the fact that the closest I was ever going to get to the steering wheel was a Playstation controller. When I got the email inviting me to drive Clarion Builds' restored and tuned 1991 NSX, I thought it was spam, a chain email with some generic header sent to a dozen or so people to garner some press coverage. Surely this wasn't a real invite where I get to drive a real NSX using my real hands and feet. Some people say don't meet your heroes. Some people are wrong. I knew the car by reputation. In roughly 10 months, Clarion Builds, a division of the Japanese electronics company mostly known for high-end audio systems, worked with partners like AEM and AutoWave to transform a '91 NSX with nearly a quarter-million miles on the clock into what you see here. Everything, from the engine to the bodywork to the leather on the seats, has been upgraded and restored with a mix of both OEM and aftermarket parts. The final product is a stunner. It's tuned, but not slammed, stanced or any other adjective that describes a car with compromised performance and questionable looks. It's simply a tastefully tuned NSX. The NSX, especially an early car with pop-up headlights, is one of the all-time great car designs. There are no unnecessary lines or curves. It's all purposeful. As expected with something with 230,000 miles, this NSX had a number of dings and dents. Clarion Builds has fixed those, replacing the hood and spoiler with carbon-fiber parts from an NSX-R. The fenders are slightly wider than stock, helping cover the staggered Rays Engineering VOLK ZE40 wheels, 18-inch up front and 19-inch out back. After seeing it in the flesh with the blue paint, black roof and bronze wheels, I don't think there is a better fit for this car. The original but tired 3.0-liter V6 and five-speed manual have been swapped for a 3.2-liter V6 and six-speed manual from a 2004 NSX. Stock, this engine is a wonderful ode to the internal combustion engine. It sings a sweet song all the way to a sky-high 8,200 rpm redline. Still, it wasn't enough. The engine now wears a Whipple-style supercharger, pushing roughly 9 psi of boost. Other modifications include a one-off carbon-fiber intake, a hand-built exhaust and a new ECU, all from AEM. All in, Clarion Builds says this NSX makes 403 horsepower and 296 pound-feet of torque at the wheels. God, it feels good to push this thing.

Honda revamps F1 engine for McLaren

Things haven't been going smoothly for Honda since returning to Formula One, and the Japanese automaker says the challenge has been greater than it anticipated. But after a stronger showing at the recent Hungarian Grand Prix, Honda says its reliability issues are behind it and is working on introducing a revamped engine for the second half of the season. "I am confident our reliability problems are now behind us, which means we can turn our attention to increasing power," Honda racing chief Yasuhisa Arai told Autosport. "After the summer shutdown our plan is to apply a new-spec engine using some of our remaining seven tokens." The "tokens" to which Arai refers are a way for the FIA to limit engine development. The power units are broken down into 66 such tokens in the regulations, and each engine supplier can change up to 32 of them throughout the season. The allowance was at first afforded only to returning suppliers Mercedes, Ferrari, and Renault, but Honda succeeded in convincing the FIA to allow it the same leeway. Honda has been spending its development tokens on fixing reliability issues, but will shift its focus to improving performance. The McLaren team that Honda powers has only gotten both of its cars to the finish line at two out of 10 races this season. Most of those problems came down to the new engine package. That's compared to only two retirements the team suffered last season, when it was still under Mercedes power, and none the year before. In Hungary, however, the team not only got both cars to the finish line, but placed both in the points for the first time this season. "The sport has changed immensely since the McLaren-Honda 'glory days'," said Arai. "The current technology is much more sophisticated, and it is tough to make a good racing car. We knew it wouldn't be easy, but perhaps we didn't imagine it would be this hard." The Japanese manufacturer is now spending the summer break developing its power unit. Many of those changes are expected to be rolled out in time for the Belgian Grand Prix later this month, with the rest to follow in the ensuing races. Beyond reliability, engine performance is particularly important for the high-speed races at Spa and Monza, where the subsequent Italian Grand Prix will be held early next month. Related Video:

Acura NSX GT3 data 'will inform future iterations' of the street car

Motorsports programs exist to drive innovation in road vehicles, and that's precisely what's happening at Honda. Acura NSX development boss Nick Robinson told Autocar that the company's work on the GT3 racing variant is directly informing future development on the road car. "In North America, we've just unveiled the GT3 version of the car, and the development team of the street car has had some involvement in its development," Robinson said. "What works well on the track will inform future iterations and updates of the street car and vice versa." But Honda is a big company that does more than build cars. Robinson paid tribute to the impact his employer's well-known motorcycle program had on the NSX. Apparently, building stuff like the CBR helped Honda with the NSX's complicated packaging. "For many years our motorcycle development teams have strived to ensure the optimum centralization of mass, ensuring the lowest possible center of gravity," Robinson told Autocar. "This leads to the best possible yaw response." Is this all a sign that a long-rumored lighter, faster NSX, potentially wearing the vaunted Type R badge, will be especially track-focused? Maybe. Robinson's comments indicate that the company is doing something with the mountains of data it collects running a GT3 program. While a pure road-focused NSX-R successor seems like it'd be a waste of that data, an NSX-based rival to the Porsche 911 GT3 RS might make a lot more sense. Related Video: News Source: AutocarImage Credit: Brendan McDermid / Reuters Motorsports Rumormill Acura Honda Coupe Racing Vehicles Performance gt3