Wow on the filter thing, I've heard some horror stories latley of dealerships screwing people like not actually changing the oil and crap, on the parts and gms1 it won't really matter the tune is a "can" tune so ya get what ya get, if ya have the time before had go for it, ya I unplug when I put mods on, at first I thought maybe it would defeat the learn down but the gms1 I believe it disables it, so you can do it for peice of mind I spose, older cars sure because its susposed to help the computer re-learn the new part

 

Yea it was crazy,my buddy showed me the filter and the damn thing was mangled! Well see what happens when I order GMS1 next week.

 

When i dynod with the stage kit and full boltons minus intake i put down 283/296. Wasnt too bad they did the pulls in 4th and as you can see not the best dyno

Turbo HHR SS on the Dyno - Car Videos on StreetFire

 

a LOT of cobalts have this problem.. the most common thing is the cam phasers.. is it kind of like a metal grind sound for a quick second or does it last for a while?

 

Cobalt SS/TC cold start with a rattle/funky sound - YouTube

heres the video i have of it. since then they replaced all the parts i mentioned along with cam phasors/actuators also

the video is on a cold start

 

Hmm that's a little different from my car.. that almost sounds like exhaust rattle at 0:25

 

lol i wish it was an exhaust rattle. it comes right up top of the motor. its not there anymore well it slightly is but not as bad

 

This is the rattle our Equinox had...

[youtube]Ly3Y4_NZHJc[/youtube]

 

hmm that sounds similar but mine always happens about 5-10 seconds after the initial start up

 

When mine does it it's as soon as I start it for 1/2 a second

 

hmmm weird. damn cars lol

 

Ya no sh**, gettin ridiculous I say

 

My car dynoed 280/310 stage 1 no bolt ons just a k&n drop in

 

That dyno was weird man. On an angle no fans or anything it was humid and started raining while i was doing the pull haha. It was one fucked up day. But after my HPTune it was a whole diff story haha

 

yea,why do they always dyno our cars in 4th gear?

 

I think it's because when you dyno you want closest to a 1.0 gear ratio to dyno in as you can get.. 3rd is 1.18 and 4th is 0.89 (turbo)

 

You are correct sir

 

Prolly going to put the GMS1 parts on this Sunday and take it in on Monday.

 

cool man! good luck and let us know how it goes putting the sensors in and getting the reflash.

 

You're still going to be into it for more than if you buy the stage kit with the sensors straight from CED;

• The pigtails are not an official GM part ~ and as such do not have an actual part number, and can only be had from CED.
• The CED pigtails eliminate all the problems related to cutting ans splicing the replacement pigtails included with the stage kit

Also:

• You need to remove a small rib from the MAP for the lower charge pipe
• I needed to enlarge the hole for mounting the upper MAP (attached to intake)

There seems to be alot of misinformation in this thread...
The "learn down" is pretty much a stock thing ~ to do with the factory torque management and air load tables;
this is why the tourque band flatlines at 260


The percieved limits (erraneously called 'learn down') associated wit hthe air load tables ~ or what the ECM is shooting for...

On a stock, or GMS1 Cobalt SS/TC you will not "lose" power with bolt on's;
1) on a stock car the power band will move in accordance to responding to the parts, while retaining the same peak numbers.
2) on a GMS1 car, you will see benifits from aftermarket parts... up to a point

Trifecta tunes have, to the best of my knowledge NEVER been "found";
The TechII will discover any Superchips, or HPT tuning.

I believe that the only check for Trifecta tunes is to look for boost increase after hitting cruise control, or traction control buttons...

By the letter of the law, any car modified, and found to have issues which are related to said modification, are supposed to be red flagged, and lose their warranty;
If anyone here is using a dealer that turns a blind eye to them being HPT tuned ~ good for them ~ but they are lucky, and in the minority.

I hope some of this helped someone....

 

thanks for the info man. any info about these cars and GMS1 is usually good info.


how long does it take to get from CED in the mail? couple days or so?

 

I'm glad you appreciate it.

Phone there ask for Tom - he is super quick, and should be able to tell you if there might be any delay in getting it to you ~ and by talking to him you can probably get the order put together quicker.

...

ok, I want to do one small correction;

In addition to this, I have in with my paperwork some printouts given to me by an 'retired' GM service manager;
It clearly states that ANY car like ours brought in for warranty work, is supposed to go through a specific process to try to prove weather or not it has an "aftermarket" tune on it;
if an "aftermarket" tune is found on it - the car is supposed to be red flagged.

period.

 

thats thee exact reason why i dont want to go with an aftermarket tune..yet.


ive orderd wheel spacers through Tom @ CED. he got me what i needed and was totally cool with me trying the spacers out and if they didnt work or anything i was able to return it.

ill have to call him. im assuming that he only works M-F?

 

I'm not certain - I have only talked to him during the work days...

 

yea,me too. not a big deal. its still some what wintery here in minnesota so im not in a huge hurry to get it on my car. but its suppoer to be in the 50's next week lol so im going to get ancey! might throw my cat-back on to hold me over until i put GMS1+bolts ons,on.