Does anyone know what speeds I should expect at redline in each gear?

 

Well, I heard the C6 ZO6 tops out at 90mph in first gear!

Don't know about SS/SC, though.

 

Try more like 65 at the most. lol

 

Oh I know. The guy who told me that is a complete idiot. He is the type who thinks he knows all, but doesn't have a clue. Should have put a after it, but oh well.

 

I hit 63 when i drove one....

but for the SS/SC with my tune

1st ? (i dont redline it)
2nd close to 70
3rd about 115
4th i dont dare try(too fast, no good spots to open it up)
5th never got past about 5k in it

 

for an LS
1st: about 25
2nd: about 55
3rd: about 80
4th: ??

 

That's pretty close to stock...

when I wind out 1st I'm always watching the tach... not the speedo... 2nd is just shy of 70... 3rd is around 100... other than that... no clue.

 

1st is around like 30-35

 

4th hits the speed limiter, just like in the Cavys.

2006 Automatic: Theoretical, 3.63 Final Drive, 6500 RPM
43.58
79.62
128.98
149.98
60.27 Reverse

2006 Manual: Theoretical, 3.84 Final Drive, 6500 RPM
34.06
60.36
90.32
124.42
176.71
36.73 Reverse

2007 models: Click on Transmission
http://www.chevrolet.com/cobalt/specifications/

I have also attached a spreadsheet I just made to figure it out.

 

1st i think is like 25 or 30
2nd is like 60 or 70
3rd is (what everyone else says) about 100 (never got to redline in third on mine yet )
4th is like really freakin fast
5th would be really, really, freakin fast

 

this is what i got from a caluculator using the ratios and tire size (which i estimated at 25" tall) and final drive ratio.. they seem pretty damn accurate so take it for what its worth

for an SS/sc @ 6500 rpm
1st-36.2 mph
2nd-69.6 mph
3rd-103.8mph
4th-137.7 mph
5th-175.1mph

the only variable that i may have messed up is the exact tire size.. but it seems pretty damn close

EDIT --im an idiot.. they have a tire size calculator at the bottom of the page.. changed the numbers

the site is http://www.izook.com/gearcalc.htm

 

Speedometer must be off....I know for a fact that mine only hits about 55 in 2nd gear...not close to 60. A friend also has an LS manual and his is the same.

 

Thanks everyone. I was having a debate with a co-worker on doing sprints from 80-100 and told him 3rd gear for me should be just fine. Needless to say he didn't agree.

 

my balt redlined at 7400 and a speed of 120

 

141 mph in 4th gear redlined.

 

need more space to redline 5th.

 

If your stock you won't make it pass 158-159mph.

 

I know that i set my redline back a bit since our tac are off by about 2-4 hundred

 

Cobalt ss/sc on stock tire with 7000 redline

 

2nd is 70, third is 110.

 

Approximately. The pic I posted above shows the exact calculations using tire size, gear ratios, and the axle ratio.

 

1st is 40ish
2nd is 75ish
and 3rd is 110ish
4th is too fast
5th is faster
all this is with a 7k redline

 

From scanning it and going off the vehicle speed sensor, heres what I've found
1st = 37.2
2nd = 72.1
3rd = 111.3
4th = 149.8 (I think thats what it was, can't really remember)
5th = Don't know, computer started messing up when I broke the sound barrier

 

I don't think our cars have enough power yet, to go 180mph. I think some people have pushed it to 165.

 

06blackg85ss said he got his up to 174