So i have the ss auto, I have only been able to get it to 130-132ish, It doesnt want to shift into fourth. Is it built to do this?

 

Shouldnt be a problem, maybe you should get it checked out.
Are you in "I" instead of "D"?

 

Limter is set by tire speed rating.

 

No, I am in The D position. The tires are the Michelin Piolts 225 45's. I tried again today and same. What have you other guys in the autos hit?

 

I have had mine up to 125-130'ish and it seem to have alot left.

 

Please correct me if I'm wrong, but doesn't the SS come with "Z" speed rated tires? (point being, they're rated for "in excess of 149 mph")

 

ive never gone over 100 n my hhr.. surprisingly .. cause ive done 120+ n past cars

 

it's governed at 130 through the ECM i believe

 

If its like any other GM product..once you pass 3/4 throttle position your locked out of 4th..another way to look at it..your in passing gear! You might be able to install a bypas switch to the lockup converter so it works in 3rd which will give another 200 rpm or so unless it requires (and probably will) a tuners help to reprogram it.

 

It's a great feeling knowing that you are at the limit of your tires, lol. Haven't done much in the SS, but I have done 135 MPH in an STi and 120 MPH in an Evo MR during a test drive :)