Why is the V6 automatic limited to 115mph?

[joepitt]

Originally Posted by ZeeTwentyFour

I always figure if you cant hit the top speed in the quarter than you don't need to go anyy faster

You probably haven't driven much in the western states where the roads are straight and there are long distances between pockets of people. My '68 Cadillac Fleetwood and '85 VW Quantum weren't great at 1/4 miles speeds, but cruised at 110 just fine.

[poinker]

Originally Posted by RallyFever

It's not the size, it's the speed rating!

get Y or Z vice H and then modify your limiter

its not the size that matters, its how you use it

[StangKiller818]

Originally Posted by poinker

its not the size that matters, its how you use it

[10redrocket]

Originally Posted by RallyFever

It's not the size, it's the speed rating!

get Y or Z vice H and then modify your limiter

Just replace your tires with higher rated 19'S.

I believe the SS's are aero limited just like the SS Cobalts.
GM if I remember correctly stated the SS Cobalt could not
exceed 148, however I've had mine up to 155 just after I broke it in.

[terndude]

Originally Posted by joepitt

You probably haven't driven much in the western states where the roads are straight and there are long distances between pockets of people. My '68 Cadillac Fleetwood and '85 VW Quantum weren't great at 1/4 miles speeds, but cruised at 110 just fine.

Yup! My '65 Fleetwood would LUNGE from 80 to 100 without hesitation...with $29 crap-o tires on it! Sigh...the one that got away...

[zebra]

Originally Posted by Mythic

except all but the 18s are rated higher
only the LS and an un-optioned 1LT would ship with 18s
everthing else would be set to 155

Go look at the build site, on the home page Perfomance 01
hover over View Stats
118mph(18-inch tires)/155mph (19/20/21-inch tires)
**all models electronically limited**

the stock tires are that way.

the wheel size don't affect the speed rating. if they wanted to put some Y-rated tires on the 18" wheels, they could've, but they went with some lower-speed all-seasons.



ps - there's plenty of threads discussing this topic.

[StangKiller818]

i wonder if you get the ls and buy z rated tires that the dealer can boost up the max speed?

[zebra]

Originally Posted by StangKiller818

i wonder if you get the ls and buy z rated tires that the dealer can boost up the max speed?

i doubt the dealer would, but anybody with an OBD2 tuner can

[CamaroSpike23]

Originally Posted by StangKiller818

i wonder if you get the ls and buy z rated tires that the dealer can boost up the max speed?

I doubt they would. not to mention, you dont need to be going that fast

[StangKiller818]

that is true i have a car that tops off at 120 that is plenty fast enough.

[manimsoblack]

Originally Posted by CamaroSpike23

I doubt they would. not to mention, you dont need to be going that fast

i think that's subjective

[CamaroSpike23]

Originally Posted by manimsoblack

i think that's subjective

you do? he doesnt....

Originally Posted by CamaroSpike23

not to mention, you dont need to be going that fast

Originally Posted by StangKiller818

that is true i have a car that tops off at 120 that is plenty fast enough.

[Xanthos]

Heh. I'll be replacing the tires, but not for the speed rating - I want them to be stickier. The stock tires will become my burnout babies. 2 matching sets of tires for the rear wheels, to burn at my pleasure? Perfect.
- Xanthos

[zebra]

Originally Posted by XanthosV6

Heh. I'll be replacing the tires, but not for the speed rating - I want them to be stickier. The stock tires will become my burnout babies. 2 matching sets of tires for the rear wheels, to burn at my pleasure? Perfect.
- Xanthos

that's the spirit!