4K High Quality Video review of the NSX - 2016+ Acura NSX Forum
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post #1 of 9 (permalink) Old 04-15-2016, 11:45 AM Thread Starter
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4K High Quality Video review of the NSX

Weeks and even months ago we got our first look at NSX reviews from MotorTrend and media outlets of the like. They focused around performance and didn't go much further, now we're seeing another wave of reviews that get much more in depth, much like this one here from Alex On Autos, filmed in 4K.

This review is the next best thing to (or better than) having an Acura sales rep tour you all throughout the NSX. Lots of details to learn and see:

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post #2 of 9 (permalink) Old 04-19-2016, 09:04 AM
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This is a great in depth review and it's great that he wend int detail about the torque vector steering, you no longer have to seesaw the wheel to go where you want.



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post #3 of 9 (permalink) Old 04-20-2016, 11:18 AM Thread Starter
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This is a great in depth review and it's great that he wend int detail about the torque vector steering, you no longer have to seesaw the wheel to go where you want.
That's one thing i'm glad they did with the steering since even on the street we'll get rewarding feedback, allowing us to better carve out those turns and corners. It's also one thing i'll be looking out for in comparisons to its rivals like the Porsche 911 (an important one), McLaren 570, and the list goes on.

It's going to be crazy if steering on the NSX feels better than a comparable 911.
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post #4 of 9 (permalink) Old 04-21-2016, 09:01 AM
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I do hope they come out with comparison videos soon between the NSX and its competitors. It's one thing to read the spec sheet but another to watch someone review them back to back.



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post #5 of 9 (permalink) Old 04-21-2016, 10:51 AM
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Once the NSX makes its way out to those that have ordered one, we should be seeing those comparisons since that's where you see it most, rarely does it happen around the time reviews with media cars. It's just too bad that with production being limited, the comparisons won't factor too much into the first year, second hand owners will benefit.



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post #6 of 9 (permalink) Old 04-22-2016, 09:01 AM
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I'm wondering if the quad exhaust system is similar to that of the Alfa Romeo Giulia where an electrically adjustable exhaust system controls the exhaust valves depending on the selected drive mode. So the valves for the two inner exhaust pipes are closed while in quiet mode and all four may be opened up in the other drive modes.
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post #7 of 9 (permalink) Old 04-22-2016, 10:27 AM Thread Starter
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I'm wondering if the quad exhaust system is similar to that of the Alfa Romeo Giulia where an electrically adjustable exhaust system controls the exhaust valves depending on the selected drive mode. So the valves for the two inner exhaust pipes are closed while in quiet mode and all four may be opened up in the other drive modes.
They do, and it's something i'm surprised that no review has shown and i've seen just about every NSX review out there by now. Here's the breakdown, explained by Acura:

Quote:
Integrated Dynamics System (IDS)
The NSX Integrated Dynamics System (IDS) provides the driver with four selectable dynamic modes—Quiet, Sport, Sport+ and Track. The system integrates all of the vehicle's dynamic chassis and powertrain systems—steering, brakes (mechanical and electro-servo), throttle, vehicle stability assist, magnetorheological dampers, engine, transmission, and Sport Hybrid SH-AWD control systems.

From the available all-electric operation of Quiet mode to the closed circuit, maximum performance capacities of Track mode, IDS progressively dials up the dynamic characteristics of the vehicle based on the needs of the driver and the driving environment.

In addition to these dynamic system variations, IDS varies cabin sounds via Active Exhaust Valve (AEV) and new Intake Sound Control (ISC). ISC uses twin pipes with an electrically controlled valve to vary the sound being transmitted from engine air intake system to twin outlets in the rear uppermost portions of the cabin. Utilizing these technologies, IDS is able to fine-tune cabin sound quality and volume to match the dynamic character of the vehicle in Quiet, Sport, Sport+ and Track modes. Of note, there is a full 25 dB volumetric sound difference between Quiet and Track modes—a tremendous variance in audible sensation.

Quiet
Quiet mode prioritizes electric-only driving at lower speeds, maximizing energy efficiency and minimizing cabin sound. The vehicle uses the TMU for initial launch from a standstill. When power demand requires the engine, it starts more quietly than in other modes and maximum engine speed is limited to 4,000 rpm, while the Active Exhaust and Intake Sound Control valves are closed for a more hushed operation. The transmission shift map also prioritizes lower engine speeds. The Driver Interface (tachometer and center console information display screen) features a cool and quiet blue color.

Sport
Sport mode takes advantage of the Sport Hybrid system to offer the driver a direct responsive vehicle or a more relaxed vehicle according to their driving inputs. Compared to Quiet Mode, it eliminates the 4,000 rpm limit on the engine and provides a more aggressive throttle map for quicker response. A more aggressive transmission shift map holds gears longer and allows higher rpm shift points. The Intake Sound Control system and the Active Exhaust Valve are activated, allowing exhaust and intake sound to permeate the cabin for a more emotional driving experience. Like the Quiet mode, sport mode provides idle stop function. The Sport setting is the default setting in normal vehicle operation.

Sport+
Sport+ prioritizes maximum drivetrain response and dynamic performance with faster up- and down-shifts of the 9 DCT and still more aggressive throttle mapping. Maximum use of the electric motor torque provides more explosive acceleration. Increased agility is achieved by harmonizing a more aggressive Direct Yaw Control setting that works in concert with the magnetorheological dampers, Agile Handling Assist, and the Electric Power Steering System—perfect for a spirited drive on a winding road. It also offers the driver a higher degree of steering feedback, while intake and exhaust note sounds via Active Sound Control are further increased for an even more exhilarating and emotional driving experience. The TFT Meter sports an aggressive yellow "con-trail" along the tachometer needle supporting easy recognition of engine RPM. Red highlights for the center console information display also reinforce that the driver is in now in Sport+ mode.
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post #8 of 9 (permalink) Old 04-25-2016, 09:04 AM
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Are the valves just used to funnel sound to the cabin? That's what the explanation seems to be telling me or is there another function to them opening and closing?



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post #9 of 9 (permalink) Old 04-26-2016, 09:10 AM
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The middle ones helps improve exhaust flow. One thing that's going to be a pain is to wait for the aftermarket to come out with a catch can and then figure out how to install it.
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