well we hit 1560 miles on the car and i was awaiting the 18psi of boost. turns out theres no increase and that its stuck at 15psi.

if someone knows about the cars boost increase if there is any at all let me know

 

im pretty sure altitude and weather conditions factor into the amount of boost you get.

 

Maybe the balt you got is down-tuned to only 15psi.

Or maybe the cobalts have to go to 2K miles.

But yeah, altitude has a lot to do with it.

Hell, maybe your intake fittings are already coming lose. GM did use a bunch of shitty t-clamps on the intake side, and the sol/skys have them coming lose all the time.

 

what the hell are you guys talking about???
our cars only run at 12.5 unless you've got pulley changes

 

This is in the LNF section.

 

wrong section

 

yea delta has a turbo and wont say how...

 

LMFAO.... whoops

 

do u have any statistics to support the possible altitude statement? id like to know what altitudes etc effect the boost level specifically.

 

The higher the altitide the lower the boost pressure will be. Because the atmospheric pressure is less.

Does a Turbo lose power with altitude? Yes!
Atmospheric Pressure = 14.5 psi, Boost = 10 psi, Total Pressure = 24.5
Atmospheric Pressure @ 9000 feet = 10.5 psi + Boost of 10 psi = Total 20.5 psi

 

thats not what i was getting at......ugh i know that

im wondering if anyone knows if the car even has a setting for an 18psi kick in. the car runs at 15 psi and pulls like a champ. but ive heard somewhere that it goes up after 1500 miles from 15-18. so thats why im lost.

im wondering if the car at a different altitude will run a different boost pressure thats tune related

 

post a video of the engine pay maybe we can help u

Your on the wrong site the car hasnt came out yet, go on the sky redline or gxp sites and ask since they have the same engine.

 

The only way to change the boost pressure is to adjust the wastegate.

It has nothing to do with any break in period.

We really need more details though to properly answer the question.

Like what engine/turbo setup? Your altitude?

 

haha i never check section either and i was going wtf are they talking about...

 

hes got a cobalt in his sig pic

and it appears to be a base model. i figured he dropped an aftermarket turbo in a base model

 

That is what I am now assuming, but I need better background info to help much.

 

yea he started the fastest growing thread sometime last week showing that he somehow got a ss turbo.

 

AH I see!!! Well then:

 

Incorrect.

With the LNF, the lower the altitude, the less pressure and vice versa.

Why you may ask?

GM designed it this way so the car has it's correct power output regardless of altitude.

 

the only problem is that nobody knows what engine/turbo hes running.

 

This is a stupid thread...

 

The turbo will only spin up so much though. Even if it is setup to compensate for altitude.
Probably never an issue below any reasonable altitude. Just arguing for arguments sake.

We are still assuming a standard turbo kit.

We haven't been able to establish whether or not it is an LNF.

 

It is an LNF. Read around this forum, you'll see. Hell, he even made a video driving it!

 

Well if that is true and what your saying about boost management is true then maybe at sea level (no idea where he lives) the boost will only reach 15psi because in Denver it would have to be ~18psi to make up for the lack of air?

 

As far as I know, he's in Michigan. Don't quote me cause I'm not 100% positive.

Also, he should be hitting 18psi at sea level after a certain mileage.