Hmm best I could get with a 5 speed is 117, and that was drag limited. So how in the hell are you guys breaking 125?

 

120 and then i get scared in my 2.4...too much to live for...i guess im just not "dying to find out" how much faster i can go..HAHAHAHAHAHAHAHAHA....no......

 

i know for a fact that gm has 2 different calibrations for the 2.2 one is for the 195 tires witch lowers the top speed and the other is for the 205 tires witch gives you a little higher top speed. I hit 150 in my ss sc.

 

how is that? I have the same exact car. With 3 buddies in the car I still did 115.

 

Speedo calibration at high speeds can be off. HOw could top speed be higher then the tire ratings speed? GM could be in trouble if they put tires on that were an incorrect speed rating on.

2.4L SS has the H rated 130mph---its probably limited to that speed, although it could go higher with no limiter.

 

doesn't matter what the redline on a car is. Does it have to power to over come the high drag to get there is the real question.

And on a stock 2.2L Ecotec---I say no. The 2.4L has much more high rpm power.

 

133MPH is not unbelevable man... i had mine past 120 and i didn't hit the cutoff.. And, my car came with the 195 continentials. explain that one to me.... just my .02

 

This is direct from GM as well....

"And what about the performance? According to Chevrolet Cobalt marketing manager Jeff Haag, the SS Supercharged does 0-60 mph in 6.4 seconds and runs the quarter mile in an impressive 14.9 seconds. What’s more, Haag says the SS Supercharged isn’t required to have a speed limiter because the car comes equipped with Z-rated tires, allowing a top speed of 143 mph."

 

Mine has the same tires, and I am not saying over 120 isn't unrealistic, I had people with me everytime I ran to 115-117. 133 however is. Once you break 100, its a lot harder to go each mph faster. Its all in the physics. faster=more drag which means more hp required to go faster. A n/a 2.2L doesn't have enough hp (125 at the wheels) to overcome much higher then 120. Thats all I am saying.

Who knows though, maybe he was going down a large hill?

 

Right.. I know about all the physics in it...




And yea... maybe... who knows

I'm trying to find out why mine does not seem to be limited?? 1st year car goof up prolly.... cuz then again my car has 3 seatbelts in the back but only 1 buckle!
and yes i've checked to make sure they weren't tucked into the seat somewhere...off topic i know but odd huh...? o well no one ever rides in my backseat anyway...

 

there is no speed limiter as far as manual cobalts go. Don't know for sure on autos so I won't say yay or ney.

 

ok... i don't know much about cars, what i can tell you BECAUSE I SAW AT THE DEALER, that all cobalts DO NOT have the same clusters, the 06LS gauge goes to 120 and is different than the LT which goes to 140 and looks different... they also CAN come with different tires...

 

Kinda new here so dont flame me too bad. I have an ss/sc bought it in cali. I hit 130 in forth then shifted to 5th got to about 146 then the car felt like it was about to take off. Just my two cents. No that it matters. I'm gonna try to get a pic thou. It will be fun to scare the hell out of my g/f too. Well anyways until the pic I guess the battle continues!!

 

Ya Im new sorry wrong section, I used the new posts sorry guys and girls!

 

You might be correct on the 06's, I haven't looked into those. I am going to double check tomarrow on the 05's as well. If I am incorrect I will post so and appologize. As for the tires, we were talking about all base models coming with the same tires. I know the LT's and LS's all have different options.

 

RM, my bad... i didn't know you were talking about the 05's... if i'm not mistaken there's a TON more options available in the 06's...

 

Isn't there some kind of sport appearance package? I remember seeing some gauges go up to 120 (black face) and some 140 (white face).

 

yea, there is a sports apearance package... it comes with the white face guages which look cool as **** at night, they're a grayish blue and also chromed exhaust tip, leather covered steering wheel, shifter, and i think the rear wing is in the sports package... not sure about the wing... i have better tires than come stock too, i'm not sure if that was part of the sports package or not though..

 

hmm ....well lets see i got a 05 cobalt sedan base 5 speed....ive hit 125mph in 4th gear right at redline.....no limiter and it holds the speed in 5th when i shift but wont hardly even move ....im also running the 195 stockers ....although my friends mom has a 05 cobalt coupse ls and it stopped at 105....so i dont care what anyone says all cars are different no matter what they are even if they are the same car.....just my .02 if need be if u think im lieing next time i get a chance ill take a pic of my car passed the 120 mark

 

i got to 148 in my ss, then I bitched out cuz, well that is really fast for me, I'm used to draggin' frame in my s-10, I need to go to a track top out, I won't do it on the street, too many risks...

 

I have a 2005 Cobalt SS and I have had it 125+ MPH and still had plenty of room to push it. These cars are faster than everyone thinks. Against the SRT-4 they are a good match, it all depends on the driver, also the SRT-4 has been out for three years when our Cobalt just came out. Let's all modify these things and well smoke all four cylinder cars. Cobalts will take it all over.

 

my 05 goes up to 140 on the dash. my friends only goes up to 120 on the dash

 

what the guages say mean nothing. Grand Nationals had 85mph speedo. But were governed at 126mph cause of the tires/suspension. Ungoverned over 150mph.

Other cars have speedos that are grossly optomistic and could never each that speed.

 

nobody was saying that the speedo determines how fast the car goes... we were talkin about the differences in the cars

 

my mistake. I see that now

I'll throw that out there anyways though. Lots of people do think that top speed is what the speedometre reads to.