I have a 06 SS/SC...Am I supposed to not get any boost in first gear?! My PSI doesn't go over 0 when I romp it in first but every other gear I get boost. Not sure if I'm supposed to get it in 1st...

 

i cant say ive ever hit boost in first nor have i wanted to hit it.. tires spin already to much haha

 

That's what I figured, but I wanted to make sure nothing was wrong...

 

i've made her whine pretty good in 1st............its soooo easy to break em loose though

 

that and the crappy paint are the only things i hate about my car im almost scared to launch because of the chirping some people stare at me weird lol

 

yea and if u want ur tires to last.. well dont attempt to hit boost in first haha

 

If you guys knew how to drive properly, you could hit full boost in first

 

i really hope you werent being serious.. lol if you dont hit boost your ecu was tuned for it.. and its a matter of pressing the trottle... come on lol

 

more like is this thread serious. unless you have boost turned down to 0 in first gear you're going to have boost in it if you floor it lmao

 

o rly?

 

if you dont have boost and ur not tuned then u got problems, i have my tuned to only give half boost in 1st gear so i can grab better traction

 

No the stock tune does not allow you to go out of vaccum in 1st

 

Yes it does. It's in the PCM, just look at any stock LSJ HPT file. The "Max Boost 1st Gear" table is 100% across the board..... Don't believe me? I'm sure someone can post a screen shot by the time I get home or I will

 

Mine is turned down to like 40%+powell stg 2 mounts=traction

 

yes it was a joke.

anyone that knows anything about cobalts knows that the stock tune allows full boost in first. I left full boost for first in my tune cause I'll half throttle till I hit my mid range RPM's and when I step on it there, I have traction.

But yes, I was just joking and making fun of the people saying that 1st gear doesnt allow full boost

 

hmmm thats odd. unless ions are tuned differently? IDK im new to this and my friends ion (pre-tune) hit full boost in first. obviously after tune its 5lbs 1st and 16psi 2-5

 

So if I stomp on it in first, and don't get boost, that's not right?! Something is wrong?! lol

 

Somethings wrong, on a stock tune you should have full boost in every gear.

Try the boost bypass mod, if it fixes it, then the tune is limiting boost.

 

My car is completely stock, no tune...I'm getting boosts in every other gear but 1st....it's not a huge deal, but a little worried...what can I do to fix or at least diagnose the problem...?

 

....

 

... doesn't help...I don't know much about cars...sorry...

 

search boost bypass mod

 

Search it on here for pics and instructions.

Basically, the bypass valve actuator, has two lines on it. One goes to the blower, one goes to a little black box on the valve cover. Remove that one, leave the end on the actuator open, and plug the end going to the black box. Try it like that, if boost goes up in 1st like every other gear, then something in the computer is limiting boost in 1st gear. Or have someone pull the tune via HPT and look at it.

 

I forget if my tune is only giving me a percentage of boost in first, regardless I need full boost again in first the ported head makes it feel slow in first