anyone know how to turn off the speed limiter?

You need a tuner or get Efi-live!

i have the banks iq but they said they cant do it..

what is efi live

http://www.efilive.com/

My Edge Evo allows me to adjust my top speed limiter although I don't take a 7400 LB truck anywhere near 100 mph.
If I want to go fast I jump in the TT.

My Evo lets me set it anywhere from 45 to 200mph. Got it set at 120 right now. Had my truck up to 115 and was still pulling strong but had to slow down to turn in my driveway. :D

I had the PPE Hot +2 and had mine set to 125. GPS only showed 123 but the truck was still pulling hard when it hit the limiter. Wished I had it set a little higher:rolleyes:. Curious to see just how fast the trucks are.

anyone know how to turn off the speed limiter?

You'll need a tuner or programmer that accesses the ECM as the others mentioned. Be careful about removing or modifying the speed limiter since it is closely related to the critical speed limits of our driveshafts.

thanks for the help gentlemen...

You'll need a tuner or programmer that accesses the ECM as the others mentioned. Be careful about removing or modifying the speed limiter since it is closely related to the critical speed limits of our driveshafts.


Well the speed limiter (on pretty much any modern vehicle) is closely associated to the speed rating of the factory tires. If the driveshaft can't take much more it's because GM cheaped out.:D

Well the speed limiter (on pretty much any modern vehicle) is closely associated to the speed rating of the factory tires. If the driveshaft can't take much more it's because GM cheaped out.:D

The driveshaft is the least of your worries when going 120 MPH.

The driveshaft is the least of your worries when going 120 MPH.

quoted for truth.

id be more worried about your tires that more then likely not rated for anything over 90+mph going kaboom. thats not saying that i have not buried my needle several times, but its always in the back of my head that they might blow

The driveshaft is the least of your worries when going 120 MPH.

Ah, you've never seen a driveshaft failure. :eek:

Well the speed limiter (on pretty much any modern vehicle) is closely associated to the speed rating of the factory tires. If the driveshaft can't take much more it's because GM cheaped out.:D

quoted for truth.

id be more worried about your tires that more then likely not rated for anything over 90+mph going kaboom. thats not saying that i have not buried my needle several times, but its always in the back of my head that they might blow

The variable are the tires, because owners tend to change tires (brands, sizes, ratings, etc.) far more often than they do the driveshaft. IIRC, the critical speed of our driveshafts is under 4K rpm. At 60 mph in my dually, the driveshaft is spinning around 2500 rpm.

No road in this country is safe at much more that 70 to 80 mph. Truck isn't very safe after that speed either. If you want to kill yourself it's fine by me. Just do it when no one else is around or take it for run on the Bonneville Salt Flats.

No road in this country is safe at much more that 70 to 80 mph. Truck isn't very safe after that speed either. If you want to kill yourself it's fine by me. Just do it when no one else is around or take it for run on the Bonneville Salt Flats.

I dont want to sound rude here but you say that like the freeways are not safe?

I dont want to sound rude here but you say that like the freeways are not safe?

Freeways are engineered for a particular speed range relative to curve radius, banking, grades and other physical factors. In my area, the I-280 freeway was engineered for a 90 mph speed as a safety measure. The curves are radiused and banked accordingly. Interchanges and access ramps are less frequently spaced. In heavy traffic urban areas freeways are engineered for lower speeds where numerous interchanges are prevalent, and congestion reduces flow speeds.

Road surface determines just how a vehicle handles, rough bumpy travel lanes will cause wheel hop and loss of traction, and smooth surfaces are prone to skidding and hydroplaning when wet. Speed limits are set to reflect the safest speed relative to road condition, traffic load, and other factors. So, freeways are safe when speed is limited to the posted speed limit and cautionary curve advisory signs.

Freeways are generally safer because of limited access and directional lane separation, but the higher speed limit causes severe damage when things go wrong. No matter all other factors, everything depends on that small footprint where the rubber meets the pavement, tires are the weak link, with brakes the second. It is very difficult to survive a head-on, collision or rollover crashes at freeway speeds as de-acceleration forces can disrupt internal organs or cause fatal head injuries. The kinetic energy of a vehicle traveling at freeway speed is similar to an artillery shell, something to consider.