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Honda insiders push for Acura NSX Type R sans hybrid tech

With 500 horsepower on tap from a sophisticated hybrid powertrain, there's plenty to love about the new Acura NSX. If the more performance-oriented elements within the Japanese automaker get their way, it could get even better. Speaking with one of the NSX project's chief engineers Nick Robinson at the launch of the new supercar, Autocar reports that there's an effort underway to develop an NSX Type R. Following a much-loved formula, the more extreme variant would pack even more power than the existing version, unburdened by excess weight. A big part of the targeted weight savings would come from ditching some of the heavier components from the hybrid system. The electric motor at the rear could stay to serve as alternator, starter motor, and flywheel. But the electric motors at the front would go, helping to shed a few hundred pounds. Throw in some lightweight materials and we'd be looking at a considerable weight reduction. It could even integrate some active aerodynamic elements that were excluded from the NSX on the road to production. Though the project may still be a ways off from getting the green light, but Robinson and some of his colleagues are working on prototypes ostensibly to make the case. He and his brother James (a powertrain engineer at Honda) will be driving a pair of NSXs at Pikes Peak this year – one that's as close to showroom stock as the regulations will allow, but the other will be closer to what they have in mind for a Type R. It'll ditch the hybrid system and put an electric compressor in its place to eliminate any turbo lag and produce even more power than the existing model. Now if they can only get the go-ahead from the higher-ups at Honda. Related Video: Featured Gallery 2014 Honda NSX Concept-GT News Source: Autocar Green Acura Honda Coupe Hybrid Performance Supercars honda nsx acura nsx type r

Honda patents engine with different cylinder displacements

A basic rule of engine design states that the displacement of a cylinder is equal to the engine's total displacement divided by its cylinder count. Honda, according to a recently surfaced Japanese patent, is looking to break that rule with an engine containing cylinders of different sizes. We've done our best to translate it from patent-ese. The idea is that different-sized combustion chambers give more flexibility when any combination of cylinders are deactivated, or rested. Because the different numbers can be combined in various ways, it provides more and smaller increments than would an engine with equal-displacement cylinders. Take a 2.0-liter four-cylinder, for example. Following the golden displacement rule, each of the four cylinders has a volume of 500 cc, giving displacement increments of 500 cc when any cylinder is deactivated. But suppose instead that the four cylinders displace 300, 425, 600, and 675 cc, respectively. This would give the engine 15 available displacements instead of just four, and the spacing between each option would be far less than 500cc. As a result, those different virtual displacements would provide more adjustment between power and efficiency than a cylinder-deactivation system can on a conventional engine. Honda's patent describes cylinders with equal bore size, with the displacement from cylinder to cylinder varying based on the crank throw radius – the longer the throw, the longer the stroke and the larger the displacement of that particular combustion chamber. The patent describes how the cylinder sizes would need to be arranged to spread the load on the crankshaft and presumably limit vibration that would be introduced by the different pulse magnitudes. If we're interpreting things correctly, the largest cylinder (the one with the longest crank throw radius) sits in the middle of the bank with the smaller ones alternating on either side as they decrease in displacement. This concept is described for multi-cylinder inline and V-type engines of various sizes. The patent was filed in March of 2014 and published in January of this year. Whether or not this arrangement will reach production is of course unknown, but the advantages in terms of both efficiency and power seem promising. Related Video: News Source: Japan Patent Office via Auto Guide Green Honda Fuel Efficiency Technology patent

2019 Chevy Blazer vs Honda Passport, other midsize crossovers: How they compare

The two-row midsize crossover market is a sizable one that just keeps growing. The two newest additions being the 2019 Chevy Blazer and the 2019 Honda Passport, additions we just recently drove. As such, it seemed like a good time to see how their numbers compare with the veterans of the segment: Ford Edge, Jeep Grand Cherokee, Hyundai Santa Fe and Nissan Murano. In this comparison to see where it lands in the numbers game, we'll take a look at everything including power, torque, towing, ground clearance, passenger room, cargo space, fuel economy and pricing. Cue the chart. Powertrain The Passport only has one engine option, Honda's trusty 3.5-liter V6. You can find this engine in both the Pilot and Ridgeline, and we like it in all its applications. But if you're looking for something more affordable or more frugal, you're out of luck. The Passport is one of just two that offer just one engine option. Most of the others have two choices, and Jeep even offers three. Compared with similar engine options, the Passport is pretty middling. The Ford Edge ST's turbo V6 makes the most power and torque at 335 ponies and 380 pound-feet. Next up is the Blazer, the only other to break 300 horsepower, and then the 295-horsepower Grand Cherokee. The Passport does beat the V6 Murano and the turbocharged Santa Fe, though. 2019 Chevrolet Blazer View 37 Photos For vehicles with smaller engines, the Edge wins again with its 250-horsepower turbocharged four-cylinder. The Chevy Blazer is next, but at 193 horsepower, it's barely ahead of the 185-horsepower Santa Fe. The Jeep Grand Cherokee has a couple of powertrain aces, though. It's the only vehicle available with a V8, and it makes an impressive 360 horsepower and 390 pound-feet of torque. There's even a turbodiesel model with 240 horsepower and 420 pound-feet of torque, the most twist of the group. The Grand Cherokee is also the choice if you want to tow much. The V6 models will pull 6,200 pounds, and the V8 and diesel can handle 7,200 pounds. Add 200 more pounds to the diesel if it only has rear drive. 2019 Honda Passport View 19 Photos When it comes to fuel economy, the front-drive four-cylinder Edge and Santa Fe are tied for the best, with the all-wheel-drive Edge getting one more mpg on the all-wheel-drive Santa Fe on the highway. The Murano comes up next.