Do 5 speed trans have higher MPH than automatics if so why?
What is the rpm at 65mph manual trans fifth gear?
what is the rpm with Automatics?
I heard trans gear ratio and diff ratios changed with the turbos compare to non turbo,
what is the trans and diff gear ratio, 1 thu 5th and 1 thu 4th automatics

 

Can't tell you about the auto, but here is the gears for the SS manual:
1st = 3.38
2nd = 1.76
3rd = 1.18
4th = 0.89
5th = 0.07

Final drive ratio = 4.05:1

 

2,385 rpm (2008 HHR SS, don't know if they changed any relevant factors for 2009)

 

Can someone post the gear ratios for the auto so we can compare?

 

1st-2.96
2nd-1.62
3rd- 1.00
4th- .68

Final 3.63:1

 

Thanks ratracer, I thought the auto may have a shorter final drive.

 

Correction- Final drive is 3.29:1 , 3.63:1 is non-SS tranny

No wonder this thing likes to cruise @ 80

 

That's what I was thinking. There is quite a difference between the auto and manual!

 

can you change ring and pinon gear ratios 4.05 to 3.63 on manuals
can you add posi to automatics by swaping spool?

 

And here I thought the SS ratio on my 08 was somewhere like 417 to 1......