no extra boost after 1500 miles?!
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From: *sighs* NC
https://www.cobaltss.net/gallery/bro...mageuser=10340
here are the ones in his photo gallery
the yellow one
here are the ones in his photo gallery
the yellow one
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From: SK
IDK then, I guess GM has made this car so complicated that this forum will be flooded with such posts until we figure out what the answer is to these questions.
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From: minnesota
um, can someone explain why it would just jump to 18 psi after some amount of miles. sorry to be cynical but that sounds like a load of ****. I do remember them saying it was gonna be 18 psi but i dont know why it would just increase three psi, of course i dont know everything about cars and it would be greatly appreciated if someone would explain why this could happen
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From: SK
um, can someone explain why it would just jump to 18 psi after some amount of miles. sorry to be cynical but that sounds like a load of ****. I do remember them saying it was gonna be 18 psi but i dont know why it would just increase three psi, of course i dont know everything about cars and it would be greatly appreciated if someone would explain why this could happen
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From: between heaven and hell
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Thats the problem with these cars... They sem to be OVERLY computer controlled.
The Wastegate is Electronically controlled via the PCM, it can run as much or as little boost as it feels like, its all in the tune.
Seems like a problem because as is said, the Car only makes as much power as it wants to make, so even if you try and mod it with aftermarket goodies its still going to probboly be just as fast as it is stock because the PCM will just lower the boost even more because its reaching its given power point faster and dosent feel the need to go above that power level, so the secret is being able to fully tune these things, otherwise your just wasting your time most likely if you cant tune it
The Wastegate is Electronically controlled via the PCM, it can run as much or as little boost as it feels like, its all in the tune.
Seems like a problem because as is said, the Car only makes as much power as it wants to make, so even if you try and mod it with aftermarket goodies its still going to probboly be just as fast as it is stock because the PCM will just lower the boost even more because its reaching its given power point faster and dosent feel the need to go above that power level, so the secret is being able to fully tune these things, otherwise your just wasting your time most likely if you cant tune it
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From: SK
Thats the problem with these cars... They sem to be OVERLY computer controlled.
The Wastegate is Electronically controlled via the PCM, it can run as much or as little boost as it feels like, its all in the tune.
Seems like a problem because as is said, the Car only makes as much power as it wants to make, so even if you try and mod it with aftermarket goodies its still going to probboly be just as fast as it is stock because the PCM will just lower the boost even more because its reaching its given power point faster and dosent feel the need to go above that power level, so the secret is being able to fully tune these things, otherwise your just wasting your time most likely if you cant tune it
The Wastegate is Electronically controlled via the PCM, it can run as much or as little boost as it feels like, its all in the tune.
Seems like a problem because as is said, the Car only makes as much power as it wants to make, so even if you try and mod it with aftermarket goodies its still going to probboly be just as fast as it is stock because the PCM will just lower the boost even more because its reaching its given power point faster and dosent feel the need to go above that power level, so the secret is being able to fully tune these things, otherwise your just wasting your time most likely if you cant tune it
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From: SK
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From: Orange, CA
HPT has full tuning capability as we speak.
It is just that some of the parameters are different than on the LSJ. Aparently, it is just a little difficult to adjust to coming from the LSJ. But if someone has been using HPT on many different vehicles, it is a sinch.
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From: USA
any information on when the break in period is over would be useful in this thread. thats what i really want answered
Why does everyone keep saying that?!?!
HPT has full tuning capability as we speak.
It is just that some of the parameters are different than on the LSJ. Aparently, it is just a little difficult to adjust to coming from the LSJ. But if someone has been using HPT on many different vehicles, it is a sinch.
HPT has full tuning capability as we speak.
It is just that some of the parameters are different than on the LSJ. Aparently, it is just a little difficult to adjust to coming from the LSJ. But if someone has been using HPT on many different vehicles, it is a sinch.
Last edited by Delta2.2; Mar 13, 2008 at 11:49 PM. Reason: Automerged Doublepost
Do you have a link to support that HPT has tuning ability for the 2008 Cobalt SS/TC?
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From: USA
Thats the problem with these cars... They sem to be OVERLY computer controlled.
The Wastegate is Electronically controlled via the PCM, it can run as much or as little boost as it feels like, its all in the tune.
Seems like a problem because as is said, the Car only makes as much power as it wants to make, so even if you try and mod it with aftermarket goodies its still going to probboly be just as fast as it is stock because the PCM will just lower the boost even more because its reaching its given power point faster and dosent feel the need to go above that power level, so the secret is being able to fully tune these things, otherwise your just wasting your time most likely if you cant tune it
The Wastegate is Electronically controlled via the PCM, it can run as much or as little boost as it feels like, its all in the tune.
Seems like a problem because as is said, the Car only makes as much power as it wants to make, so even if you try and mod it with aftermarket goodies its still going to probboly be just as fast as it is stock because the PCM will just lower the boost even more because its reaching its given power point faster and dosent feel the need to go above that power level, so the secret is being able to fully tune these things, otherwise your just wasting your time most likely if you cant tune it
and as far as mods go, the car will run better, faster, more efficient, etc with the goodies. no the tune does not do that when bolting on stuff. gurenteed my friend. just a quick list of how very srt like this will be, intake, hard pipe, turbo back exhaust, and the car will become much more free flowing and much more powerful
but agreed, that the tuneing capabilities is where its at. no doubt
......................remember fellas...................this car has to back a 5 year/100,000 mile warrenty.................... they obviously have detuned it, i know trust me and my sources (which i will not disclose
)
i'll let u guys know as soon as i hear some words back but if someone on here knows, i figured id ask away
yes, main reason is the VVT creating a whole 'nother ball game to deal with. that and the Direct injection as well.
Last edited by Delta2.2; Mar 14, 2008 at 12:02 AM. Reason: Automerged Doublepost
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From: Bedford, NH
Does the direct injection aspect mean the injectors wont max out because of the nature of how they operate? AKA i assume since you cant swap injectors to bigger units like you have to do in the Supercharged cars, that the stock DI system can handle anything we throw at it in its stock form
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From: Norwich NY
go ask on the hhr forums..... same set up, i just dont see how you can be so important to get a car that isnt out yet, then not be able to get information on it from your supposed sources..... wheres your new camaro? or how bout a zr1?
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From: SK
HHR forums is a good idea, they have been out for a tad longer.
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From: Norwich NY
Does the direct injection aspect mean the injectors wont max out because of the nature of how they operate? AKA i assume since you cant swap injectors to bigger units like you have to do in the Supercharged cars, that the stock DI system can handle anything we throw at it in its stock form
i saw the pictures, but id still rather test a camaro
Last edited by italstalnprd86; Mar 14, 2008 at 12:10 AM. Reason: Automerged Doublepost
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From: USA
but ya my sources im talking about right now, were discussing things that seperate the ss/sc vs ss/tc besides the engine. i mean down to the nitty gritty i'll post up later. its like 12:15am right now, not in the mood. but regardless, the camaro that was being tested was with ss/tc seats too, its funny stuff
seeing the retro with the new stuff. (just a taste of what i know to answer ur camaro question 
) the zr1 now.....thats a little above my league for now at least 
dont worry, im just sweet like thisumm....u sir are wrong....they DO in fact have 2.4 HPT fully capabilities right now. ask around and check the website. they do dude, im just saying when u combine the turbo along with VVT on top of direct injection, its a lot of different variables to deal with. mainly because the cobalts one of few/if at all any that has that setup
Last edited by Delta2.2; Mar 14, 2008 at 12:18 AM. Reason: Automerged Doublepost