More Speed

[chevyman02]

I have a question about my 04 Chevy Silverado 1500 LS. It has to do with speed. How can I get more speed out of it, right now I can go 97 then the truck will lose just a little power and go to 93 before it will gain power. Once it hits 97 again it will repeat the same process. I know that it is supposed to operate like this. I was wondering if there was any way that I could bypass this feature.

[airtight_python]

On these trucks there is a fuel shut off at 97. Just like mine... If you wish to raise the top speed you can buy a speed control module or a Hypertech Power Programmer. With the Hypertech I believe you can move it to 128. You can do other things with the Hypertech like change shift points and adjust for different sized tires. At about $350 I dont know if that would justify for you.

[nineball481]

Originally Posted by brandon_rip84

On these trucks there is a fuel shut off at 97. Just like mine... If you wish to raise the top speed you can buy a speed control module or a Hypertech Power Programmer. With the Hypertech I believe you can move it to 128. You can do other things with the Hypertech like change shift points and adjust for different sized tires. At about $350 I dont know if that would justify for you.

true dat

you can find the hypertechs for less on ebay, just gotta look around

[ec437]

No offense to you guys or anything, but doesn't it seem like your trucks might not be the safest vehicles to be doing 120+ mph in, not only for you, but for other people on the road as well? I mean, there may be a reason that GM engineered there to be a fuel cutoff at 97, just as many german companies engineer their sportscars with a speed limiter of 155; the car was simply not designed to safely go faster than that as it came equipped from the factory. Of course, with lowered and hardened suspension, Z rated tires, and performance brakes, it would become more sensible to reach those kinds of speeds in a truck, although the aerodynamic shape would certainly still not lend itself to high speed stability...

[BlenderWizard]

Originally Posted by ec437

No offense to you guys or anything, but doesn't it seem like your trucks might not be the safest vehicles to be doing 120+ mph in, not only for you, but for other people on the road as well? I mean, there may be a reason that GM engineered there to be a fuel cutoff at 97, just as many german companies engineer their sportscars with a speed limiter of 155; the car was simply not designed to safely go faster than that as it came equipped from the factory. Of course, with lowered and hardened suspension, Z rated tires, and performance brakes, it would become more sensible to reach those kinds of speeds in a truck, although the aerodynamic shape would certainly still not lend itself to high speed stability...

blah blah blah, no one asked you. "bimmer" IS NOT pronounced "beamer"!

[99redsilverado]

Originally Posted by ec437

No offense to you guys or anything, but doesn't it seem like your trucks might not be the safest vehicles to be doing 120+ mph in, not only for you, but for other people on the road as well? I mean, there may be a reason that GM engineered there to be a fuel cutoff at 97, just as many german companies engineer their sportscars with a speed limiter of 155; the car was simply not designed to safely go faster than that as it came equipped from the factory. Of course, with lowered and hardened suspension, Z rated tires, and performance brakes, it would become more sensible to reach those kinds of speeds in a truck, although the aerodynamic shape would certainly still not lend itself to high speed stability...

go back to your bimmer page...we can go fast if we want to...

[ec437]

Originally Posted by BlenderWizard

blah blah blah, no one asked you. "bimmer" IS NOT pronounced "beamer"!

WTF? I never said it was. FYI, the cars are bimmers, the motorcycles are beamers. Why are you so offended?

[99redsilverado]

were not offended just ticked at people who would come in here and try to act like our mothers saying o my god i think thats unsafe.....

you do your thing we'll do ours.

just stay out of here
unless you get a silverado..99up

[jeverett]

I kinda agree with him to a certain extent. I've been well over 115 in my truck and it scared the piss outta me...of course mine is higher than a 2wd..... it was very squirrley. I need a 2wd,....grrrr

[jveik]

yeah in a newer truck it is perfectly safe as long as you arent hauling a u-haul behind ya lol. my 73 chevy c-10 cheyenne has a tired old 350 in it and its carbureted so theres no speed limiter and ive even had that at 115 before and it doesnt even shudder or anything. smooth as a babys bottom, and thats a rusted out pile of crap too, so a good condition one is perfectly fine most likely.

i bet the reason for the 97 mph fuel cut-off is for handling purposes. trucks cant swerve to miss a squirrel at 130 miles an hour, you'd likely do about 50 kazillion flips and end up kicking the bucket. also, i have a friend who went 140 on the interstate once in his 86 silverado with a 450 horse 454 and he said the back end started to loose traction from the wind picking the lightweight bed off the ground a little bit. definately unsafe...


by the way, lets say you have a regular cab short bed with a stock 8.1 liter v8 from 2002 or something. if there wasnt a speed limiter, how fast could that go on a flat straightaway? does anyone know?

[BlenderWizard]

a high top speed is dangerous in any vehicle. 0-60 and 0-100 times are what I want to make gains in

[jeverett]

Originally Posted by jveik

by the way, lets say you have a regular cab short bed with a stock 8.1 liter v8 from 2002 or something. if there wasnt a speed limiter, how fast could that go on a flat straightaway? does anyone know?

very damn fast

[jeverett]

I had a call yesterday afternoon 10-50 multiple injuries....me and the old Z struck out...I'm guessing we held 110 or better in OD with the a/c runing..never broke a sweat! Nelson rules!!