cobalt ss @ 155mph
08-03-2005, 09:54 PM
#52
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Originally Posted by CobaltOrange
Now I'm 6'4", 220....I'm sure some of you smaller folks could even go a bit quicker.
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.
08-13-2006, 12:43 PM
#54
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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.
Its funny how people perspectives have changed in one year.
08-13-2006, 07:45 PM
#57
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go to www.streetfire.net and type cobalt ss and there r like 4-5 vidz of cobalts ss s/c going 155mph
08-13-2006, 07:52 PM
#58
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Originally Posted by MarcS
Well in part, also in colder weather you will have less drag because the air is less dense so cutting through it would be much easier.
It's the reason why commercial jets fly at 30,000 feet so there is less drag which allows them to go faster and be more fuel efficient.
It's the reason why commercial jets fly at 30,000 feet so there is less drag which allows them to go faster and be more fuel efficient.
why do i think thats wrong?
also the high altitude would cause a lower air pressure..not the temp tho.
cold=dense.
08-13-2006, 08:37 PM
#60
Originally Posted by 06black
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.
why do i think thats wrong?
also the high altitude would cause a lower air pressure..not the temp tho.
cold=dense.
Thanks
Actually heres the post (07-08-2005):
https://www.cobaltss.net/forums/show...1&postcount=15
08-13-2006, 08:43 PM
#61
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Originally Posted by MarcS
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:
https://www.cobaltss.net/forums/show...1&postcount=15
Thanks
Actually heres the post:
https://www.cobaltss.net/forums/show...1&postcount=15
08-13-2006, 11:16 PM
#68
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Originally Posted by chipmonk212121
The PCM is tuned to govern at 145 stock.... so its not possible lol. the car stops going faster
08-13-2006, 11:30 PM
#70
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Originally Posted by chipmonk212121
The PCM is tuned to govern at 145 stock.... so its not possible lol. the car stops going faster
just a lil FYI
posted a screen shot so you can see.
https://www.cobaltss.net/forums/show...ight=Top+speed
