ive hit 150 and had to let off cause i ran out of road so i can vouch for that

 

Weight will make very little difference in top speed, especially a lousy 100lbs or so. The biggie is wind resistance, the function is cubic. Meaning if a stock CSS hits 145 with 215 horses (assuming the car is geared to hit drag limited top end at the peak of horsepower), then it will take 262 horsepower to push it up to 155. 160MPH would require almost 290 horses. 190 MPH would be a whopping 484 Horsepower (at the appropriate engine speed for the gearing. Now....if GM is getting nearly 500 horses with an ECM change, I will eat a bug.

 

ive hit 150 and still had room to go so i can vouch for his 155 i just stopped because i ran out of road

 

i can now vouch for the 150mph+. i hit 155mph last night but it didnt wanna go any higher. i wasnt hitting the rev limiter or a fuel cut off, it just couldnt overcome the drag. and no i wasnt going down hill or have a tail wind.

 

You just brought up a year old thread. Its funny how people perspectives have changed in one year.

 

True

 

go to www.streetfire.net and type cobalt ss and there r like 4-5 vidz of cobalts ss s/c going 155mph

 

your gonna try and say that cold air is LESS dense....hmmmmmmmmmmmmmm

why do i think thats wrong?

also the high altitude would cause a lower air pressure..not the temp tho.

cold=dense.

 

I've had mine to 155

 

Hey man, if you bother to read the rest of the thread you'll read where I admited I was wrong.

Thanks

Actually heres the post (07-08-2005):

https://www.cobaltss.net/forums/show...1&postcount=15

 

read the whole thread? are you insane? that's too much work. makes too much sense for some members.

 

ohhhh okok....i just saw that and posted.

dident know there was more at this time.

 

it happens.

 

*ends argument*

 

impressiv if its true or not still impressive...

 

ive had my car tac out at 160 before on the freeway and my rpms were still rising so i say its possible but yes its alot harder without any mods.

 

*ends argument*

 

i dont have the stock pcm...and at the end of 4th your at 145.

 

*ends argument*

 

no true....its 158

just a lil FYI

posted a screen shot so you can see.

https://www.cobaltss.net/forums/show...ight=Top+speed

 

i hit 152 mph with my car all stock

 

*ends argument*

 

*ends argument*

 

ahahah....the got posted 4 times....

is the server messin up or somethin?...or is he doin it?

 

I edited all my posts. didnt feel like arguing about it any more. no neeed to argue. live life, get laid, get paid