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As to high speed, I hope someone does the math on how much energy is stored in one of our MDX's with standard profile truck tires when they are turning at 130 mph. The standard profile tires have substantial energy that uses up substantial braking even if the car weighed nothing.
 

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When in Germany 2 weeks ago, I had the chance to drive the MDX on the unlimited speed Autobahn at it's limited 112Mls/h topspeed for over 15 minutes straight and the car had no problems with it.

With it's firm Megan racing coilovers (which are terrible in way of comfort and dampening, but do firm things up a lot) and the 9.5 x 21 Infiniti FX50 wheels with 265/45/21 tires it felt quite balanced.

There were no mechanical warnings, it had no technical problems with the engine doing an easy 4200rpm in 6th gear, both engine coolant temp and transmission oil temp (which I monitor via OBD readout) were OK, mind you it was a nice cool ambient 10 degrees C (so about 50 F).
Only the fuel economy dropped quite a bit to an average 14Mls/gallon...

It is clear to me that there is very little use to continue this topic, as many people who have never driven cars at higher speeds are firm in their opinion that driving fast is rediculous/irresponsible, dangerous and I can understand that.

I however also keep to my opinion that most of the time, a highly concentrated fast driver, who anticipates to all driving conditions and surroundings/ other traffic, can be driving just as safe, most of the time even safer then the average slow(er) driver who is strolling along without concentration, often at the same time doing lots of other things besides driving.

I personally will keep using the MDX as daily driver and will occasionally push it to it's limits, having fun doing so.
Soon it will probably be even a lot better with custom built suspension (is in the race/rallye suspension specialist's shop now to have individual fast road setup designed and built) and after that I will be installing upgraded brakerotors and brakepads on all 4 wheels, replacing the now warped front rotors, to prevent that happening again and hopefully increase braking capabilities a bit too.

Thanks to everybody for their comments.
This topic may be locked as far as I am concerned as the topic question asked, clearly doesn't appeal to most people :sneaky: ;)...

Sounds like you had a better upgraded MDX than I drove in Germany. For two months I drove a '12 Tech that I had put brand new (Michelin Piolet Sports) tires on, switched to the thicker Advanced anti-sway bars (up appx 2mm front and rear; YES, that made a difference), and upgraded to EBC sports pads and upgraded slotted/vented rotors.

At 107 mph it was HOWLING, didn't like the speed. At 112mpg it kept hitting the limiter, plus it was at something like 9mpg. After three weeks - the sports brakes developed a shudder.

It was a good car state-side, but out on the Autobahn, it just didn't do what I wanted.

So I sold it 馃槩and bought an X5 馃槃. I'll love that MDX, but the X5 just handles the Autobahn soooo well - sustained over 140 mph cruising speeds for up to an hour at a time. (For almost two years, so yeah, speed can be sustained safely given the right environment. It helps that the Germans are taught to pay attention, but they are more asshole drivers here now than you may think...)

Cheers!
 

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Just remember the "Idiot Factor" here. It is not good public relations for American Honda to have an idiot kill themselves (and maybe others) while driving at really high speeds in one of their cars. The idiot's family would sue, claiming their idiot would still be alive if American Honda wouldn't have allowed him (or her) to drive that fast. An ambulance chaser lawyer would salivate heavily when undertaking the case, sadly.
It's really a cultural thing, isn't it? We (Americans) are scared of triple-digits and can't fathom being responsible enough to not text & drive and pay attention at anything over 55 mph (looking at you, Oregon!). Sad commentary on 'merica. Elon needs to hurry up and get fully automated cars so all the ID-10T's can just text and the rest of us can drive 馃槈.

I propose two licenses and new speed limits: License 1, automated driving or manual driving at 65mph and less - ONLY valid in LVL 5 automated cars, may ONLY take control driving under 65 MPH. License 2, unlimited driving - requires special courses, instruction, registration fee (something like $2000) but can travel at up to 120 MPH on the otherwise "automated" interstate system (where the roads can handle it).

Interstate systems become automated/less speed regulation. Speed limits become 80mph average around cities, 120 outside of cities.

馃榿
 

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Discussion Starter #84 (Edited)
It's really a cultural thing, isn't it? We (Americans) are scared of triple-digits and can't fathom being responsible enough to not text & drive and pay attention at anything over 55 mph (looking at you, Oregon!). Sad commentary on 'merica. Elon needs to hurry up and get fully automated cars so all the ID-10T's can just text and the rest of us can drive 馃槈.

I propose two licenses and new speed limits: License 1, automated driving or manual driving at 65mph and less - ONLY valid in LVL 5 automated cars, may ONLY take control driving under 65 MPH. License 2, unlimited driving - requires special courses, instruction, registration fee (something like $2000) but can travel at up to 120 MPH on the otherwise "automated" interstate system (where the roads can handle it).

Interstate systems become automated/less speed regulation. Speed limits become 80mph average around cities, 120 outside of cities.

馃榿
Sportscars drivers in the US (such as NSX owners) understand that driving at high speed can be fun and at the same time can be done responsibly when circumstances are right. For some reason the general US (family car?) driver seems to feel that anything over the US speedlimit is irresponsible and crazy, so I guess in their view all drivers in Germany (where there are still some speed unlimited roads and people will go over 100) are crazy. Clearly a non-sportscar minded thing.. :rolleyes:;)
 

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Discussion Starter #85 (Edited)
Sounds like you had a better upgraded MDX than I drove in Germany. For two months I drove a '12 Tech that I had put brand new (Michelin Piolet Sports) tires on, switched to the thicker Advanced anti-sway bars (up appx 2mm front and rear; YES, that made a difference), and upgraded to EBC sports pads and upgraded slotted/vented rotors.

At 107 mph it was HOWLING, didn't like the speed. At 112mpg it kept hitting the limiter, plus it was at something like 9mpg. After three weeks - the sports brakes developed a shudder.

It was a good car state-side, but out on the Autobahn, it just didn't do what I wanted.

So I sold it 馃槩and bought an X5 馃槃. I'll love that MDX, but the X5 just handles the Autobahn soooo well - sustained over 140 mph cruising speeds for up to an hour at a time. (For almost two years, so yeah, speed can be sustained safely given the right environment. It helps that the Germans are taught to pay attention, but they are more asshole drivers here now than you may think...)

Cheers!
A '12 is the G2 MDX, a completely different animal compared to the '14 G3 MDX that I have.
Now the custom built Ohlins sport suspension is on, It will probably humble a X5 as far as cornering goes (I have never driven a X5). But as it comes quite close to my NSX in the way of high speed cornering roadholding now, really incredible and I have owned a '05 Cayenne Turbo and a '09 ML63 AMG I do know that now the MDX in my opinion goes better and faster through corners than these 2 could. Comfort however obviously is "a bit" less ;) but I don't mind that, is still reasonable 馃槑
 
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