How fast could the TRX go without its speed-governor?

[RTG]

The TRX passes 100 MPH in fourth gear and quickly reaches its governed limit of 117 with gears to spare. I wonder what the top end would be if the speed-nanny was removed?

It can obviously go a lot faster. I don’t know at what point aerodynamics create a wall.

 

[Bambi]

I used to say 150+\- the more I drive it it does kinda dog out aroung 105-115. I think un modified 140 is probably a task

 

[cortc]

It hits 118 and all the way mine is accelerating hard never letting off or slowing down. I would say yes 150+, however in such a high truck with the air dynamics of a brick I would not really want to go much past 120 so 118 seems more than adequate. Want to go faster get a Redeye or any other muscle or sports car...

 

[RTG]

It hits 118 and all the way mine is accelerating hard never letting off or slowing down. I would say yes 150+, however in such a high truck with the air dynamics of a brick I would not really want to go much past 120 so 118 seems more than adequate. Want to go faster get a Redeye or any other muscle or sports car...

Agreed, with the heavy 35 inch tires I wouldn’t want to go much past 120. Just curious however.

 

[Boostedroofer]

It'd

It hits 118 and all the way mine is accelerating hard never letting off or slowing down. I would say yes 150+, however in such a high truck with the air dynamics of a brick I would not really want to go much past 120 so 118 seems more than adequate. Want to go faster get a Redeye or any other muscle or sports car...

I'm just gonna throw this out there.... all new Dodge widebodies are not much more aero friendly or safer. The chargers have much better aero than challengers thanks to that front end.

 

[JRex]

The tire speed rating is there to let you know that you shouldn't exceed that speed with that tire. If you do for a sustained period of time the air in the tire will heat up and expand causing the tire to explode. It is pretty simple.

At 150MPH+ and if tire lets go, truck is totaled and so are you.

Whenever you exceed the speed limit of a vehicle the slightest turn of steering wheel, dip, pot hole in road, is the enough to un-weight the vehicle and of you go on wild ride that ends in some type of crash.

I had a friend that died in a viper doing over 150 over a 4 lane, 5 mile bridge, there was a dip in bridge,which shifted the weight balance and and he was dead on the spot. If that happens at that speed, its really not controllable.

 

[Boostedroofer]

The tire speed rating is there to let you know that you shouldn't exceed that speed with that tire. If you do for a sustained period of time the air in the tire will heat up and expand causing the tire to explode. It is pretty simple.

At 150MPH+ and if tire lets go, truck is totaled and so are you.

Whenever you exceed the speed limit of a vehicle the slightest turn of steering wheel, dip, pot hole in road, is the enough to un-weight the vehicle and of you go on wild ride that ends in some type of crash.

I had a friend that died in a viper doing over 150 over a 4 lane, 5 mile bridge, there was a dip in bridge,which shifted the weight balance and and he was dead on the spot. If that happens at that speed, its really not controllable.

So run slightly under recommended tire psi!

Sorry about your friend, it's an assumed risk ppl forget about.

I was dumb enough to do 192 behind the wheel and have rode passenger doing 243 in an UGR built TT Avantador on a runway testing for Texas Mile. .... I feel no need to keep pressing luck.

 

[Bambi]

So run slightly under recommended tire psi!

Sorry about your friend, it's an assumed risk ppl forget about.

I was dumb enough to do 192 behind the wheel and have rode passenger doing 243 in an UGR built TT Avantador on a runway testing for Texas Mile. .... I feel no need to keep pressing luck.

200mph club here. Almost died doing 170 after I hit a bump and went airborne. Didn’t die but it was close.

hell. At 170/180+ those tiny raise lane markers are shady af

 

[RUNGUNSLV]

I had a friend that died in a viper doing over 150 over a 4 lane, 5 mile bridge, there was a dip in bridge,which shifted the weight balance and and he was dead on the spot. If that happens at that speed, its really not controllable.

Ran 120mph in a little Ford Escort, Hit an incline, tapped the brakes. I ended up losing control and sliding 250+ Feet off the road and over a cliff. Car was literally hanging off the cliff by the time it got there.

Tow Truck driver went and told my parents some story about how I tried to kill myself.

It's honestly a good beer story. But 0/10 Would not do again.

Here's where. https://www.google.com/maps/@47.5370273,-111.230024,274m/data=!3m1!1e3

 

[Chick Grimsley]

Ran 120mph in a little Ford Escort, Hit an incline, tapped the brakes. I ended up losing control and sliding 250+ Feet off the road and over a cliff. Car was literally hanging off the cliff by the time it got there.

Tow Truck driver went and told my parents some story about how I tried to kill myself.

It's honestly a good beer story. But 0/10 Would not do again.

Here's where. https://www.google.com/maps/@47.5370273,-111.230024,274m/data=!3m1!1e3

You grew up in great falls? You still there?

 

[RUNGUNSLV]

You grew up in great falls? You still there?

10 years in Butte/Whitehall, 10 Years in Great Falls.

I live in Tennessee now; Just north of Atlanta. Wife wont let me move back to Montana; I love Popeyes Chicken too much.

 

[thewrx]

how would aerodynamics of a vehicle make you not want to reach a higher top speed????

You either get there or you don't, we aren't talking about the mercedes le mans prototype cars that go airborne or anything.

I would agree that anything above the 100-120 mark, as it takes considerably more hp than a car to reach higher mph.

Maybe 130-140 is my guestimate on top speed for a stock truck at sea level with 75-85* temps, with stock wheels, etc.

 

[F8Demon]

I know its smaller and lighter, but the viper ram could hit 155 with 200 less horse.

 

[Bambi]

I know its smaller and lighter, but the viper ram could hit 155 with 200 less horse.

Smaller, lighter, some aero, street tires

 

[Futant]

My wife drives Range Rovers. The supercharged ones. Mostly because we have an agreement. She picks the vehicle and I pick the motor. I took her RRS SC to Denver one time. It’s a 6hr drive in the best conditions. These RR’s will drop the suspension 2” after 120mph. I had to find out. Once I hit 155mph everything just seemed so slow at 90mph so I couldn’t go that slow. I made it to Denver in 4hrs. This attached is my Speedo just before I got to 155. I wasn’t comfortable taking one hand off the wheel after this.
To answer the question of what does it matter in regards to height and wind resistance at top speed, I can only say it is dramatic. When the RR drops the stability goes way up. And you kinda feel the mph’s pick up a bit faster.

 

[Bambi]

My wife drives Range Rovers. The supercharged ones. Mostly because we have an agreement. She picks the vehicle and I pick the motor. I took her RRS SC to Denver one time. It’s a 6hr drive in the best conditions. These RR’s will drop the suspension 2” after 120mph. I had to find out. Once I hit 155mph everything just seemed so slow at 90mph so I couldn’t go that slow. I made it to Denver in 4hrs. This attached is my Speedo just before I got to 155. I wasn’t comfortable taking one hand off the wheel after this.
To answer the question of what does it matter in regards to height and wind resistance at top speed, I can only say it is dramatic. When the RR drops the stability goes way up. And you kinda feel the mph’s pick up a bit faster.

My RR also does 140/50 without breaking a sweat. The aero on the trx is way way worse

 

[ekaz]

Lower the TRX, get the right wheel/tire combo and think it would his 140/150 like the trackhawk

 

[Boostedroofer]

What Aero..... ?! Lol
She said let's race home! I said I'll give you a head start. The Ass-tastic aero of the USS-TRX walked her X7 M50i (which is spec'd at 4sec 0-60 12.6sec 1/4) down with ease and she's no punk behind the wheel, she was impressed and for her to say anything nice about any of my trucks is mind blowing.. That said hers tops out at 165mph since it has the drivers pack with 'performance wheels" with PZeros that are 315s. I'd be comfortable to lower the TRX and run it up to 160-170 all day on the Bronze 33s I wrapped in the NT420v's which can handle that speed.

 

[HeliPilot]

As far as I concerned, this truck will go as fast as a Brick can possibly go. It's never gonna be the fastest vehicle on the road, but it may damn well be the funnest.

 

[Boostedroofer]

As far as I concerned, this truck will go as fast as a Brick can possibly go. It's never gonna be the fastest vehicle on the road, but it may damn well be the funnest.

You'd be surprised how fast performance diesels can get as far as trucks go...

Again not smart, but a dude outta Utah runs 9s in an 8800lb dually....

Shits bananas.