Fuel shuts off at 112MPH

[Alex Gales]

Ok, not the smartest move; however I wanted to see what the truck could do.

I was moving at highway speeds about 65-70MPH and let her have it. She accelerated very quickly and startled me at 112MPH with the fuel cut off. It picked right back up as speed dropped.

The truck handled very smoothly for the speed. I'm not interested in doing it again, just thought I would put it out there.

 

[exp500]

Hmmmmm..... I wonder if it phoned home or called your insurance company!
That and your tires are probably rated 88mph.
Glad you and everybody else survived.

 

[Jwedge]

Have you thought about speed rated tires and a quick computer flash?

 

[the_tool_man]

Factory speed limiter. Easily disabled with a tune.

 

[JasonHTX]

Factory speed limiter. Easily disabled with a tune.

I've read that the 2021's are impossible to tube. Is that true?

 

[Gibby13]

Yes the 2021 large GM SUV's have locked ECU's. You could get another ECU installed which can be programmed like some are doing with the Corvette's where they are running dual ECU's. At that point you can then also do more fun stuff like adding a supercharger.

 

[Alex Gales]

Hmmmmm..... I wonder if it phoned home or called your insurance company!
That and your tires are probably rated 88mph.
Glad you and everybody else survived.

Yeah, it was a rookie move.....

 

[Bill 1960]

Car makers do not sell vehicles with tires rated for lower speed than the governor setting.

 

[swathdiver]

I've never heard of passenger car tires rated for that low speed, GM certainly wouldn't use them if they exist on their premier offerings either.

 

[yukontruckman]

My Yukon 22" Bridgestones are "H" rated which is 130mph. Not sure if that was some "Back to the Future" reference, but if they were only rated to 88mph I would have had a blowout long ago!

 

[Joseph Garcia]

The lowest speed rated tires, S, as I understand it, are 112mph.

Yes, it was a rookie move for sure, but I fully understand and appreciate. It reminds me of the mantra from my deep wreck diving days, "No Risk, No Glory".

 

[Fireman591]

112 MPH is nothing. I remember going well over 120 in a high top suburban ambulance with a 454 back in the 80's. The diesels these days can't touch the record times to area hospitals set by that V8 beast LOL

 

[09_4WD_YUKON]

They raised it past 99!

 

[EddieC]

Hmmmmm..... I wonder if it phoned home or called your insurance company!
That and your tires are probably rated 88mph.
Glad you and everybody else survived.

Ya, have to wonder what On Star is recording and what they do with it.

 

[1BADI5]

Ya, have to wonder what On Star is recording and what they do with it.

Nothing unless there was an accident. They bet your happy ass that law enforcement would request those records. So proceed with caution.

BTW - I have NO, I say again, I have NO problem with law enforcement or them doing their job. Just remember, stupid games win stupid prizes. That's life and we're adults.

 

[ThisIsLivin]

Had my Denali to 130 so far and it was still pulling hard. When it shifted at 125 I was surprised at how hard it pulled. With the few mods I've done so far it should hit 150 pretty easy. Of course I have upgraded the brakes significantly and she stops fast at 130. I do have a device plugged in to my ODBII port that interferes with Onstar so no issues there.

 

[1BADI5]

^^^^^^Brake upgrade FTW^^^^^^^^^^^^

 

[RST Dana]

112 MPH is nothing. I remember going well over 120 in a high top suburban ambulance with a 454 back in the 80's. The diesels these days can't touch the record times to area hospitals set by that V8 beast LOL

I was totally shocked in my first ride in a type 3 that clocked 130. Handled like a go cart too. 454, you have to love them.

 

[BG1988]

My Yukon 22" Bridgestones are "H" rated which is 130mph. Not sure if that was some "Back to the Future" reference, but if they were only rated to 88mph I would have had a blowout long ago!

you know the max side wall says 44PSI

<--has mine at 50PSI you can go 150PSI or so..before they will actually pop

 

[BG1988]

Nothing unless there was an accident. They bet your happy ass that law enforcement would request those records. So proceed with caution.

BTW - I have NO, I say again, I have NO problem with law enforcement or them doing their job. Just remember, stupid games win stupid prizes. That's life and we're adults.

legally the black box is your property... be sure to take it with you after an accident..... also you can just say the gas peddle got stuck GMs are known to throttle by them selfs GM calls them "surges" but you and i both know it's unintended throttle acceleration

I'm sorry if my Engine is throttling to 6,000 RPM without me pressing the gas peddle, that meets the definition of unintended engine acceleration...