2003 4x4 1500 SLT quad cab with off road package. I hit 109 and then the speed limiter kicks in. Dag nab it.

 

quote:

ORIGINAL: HotShot13524

My local dealer said that the Hemi with the factory tires and 20" wheels will run 120 at 2000 rpm... I dont know if he knew what he was talking about cuz thats pretty fast...

Sorry guys... I lied... what I ment to say is My local dealer said that the Hemi with the factory tires and 20" wheels will run 70 at 2000 rpm... and it will get up to 120... BUT I STILL dont know if he knew what he was talking about cuz 120 is pretty fast...

 

I believe it could go that fast. Why do they limit the trucks anyway? Don't tell me safety, if you hit something going 105 or 120 the outcome will be the same.

 

Might have something to do with the insurance companies and warranty...or certain parts of the vehicle started behaving badly at higher speeds, like the 01 dak... just my .02

 

That might be it, I didn't think of that. I do believe that's why car companies underrated their cars in the late 60's and early 70's.

 

Tire ratings are also a factor. I am not sure but I beleive my tires are only safety rated to 100. The 20's would have a higher rating.

 

my 04 hemi tops out in 4th gear at at around 4000 at 108mph. Once you stop going faster, turn the key like you are trying to start it and hang on as it gains rpms and shifts into 5th and gains some more. The speedometer doesnt work with this. The starter will not engage because the tranny is in gear, so dont worry about your flywheel teeth getting shaved off. I was suprised at the amount of pull mine had at that speed.

 

where did you ever get the idea to do this?? that CANT be good for the truck.

 

Yea that really doesn't sound good at all.

 

the main reason for the limiting is a liability issue. They try to match the top speed with the rating of the tires. War story to go with this. When stationed in germany and the army was selling off their chevys when they were replaced with the hummer, the germans were buying them and wondering why that tires rated for 85mph were blowing out at autobahn speeds. After a few accidents the army would slash the tires as soon as the truck was sold and the new owner had to have a set of new tires availible or a trailer.