I'll see if I can get a good test in this afternoon
I'll see if I can get a good test in this afternoon
I think I'm going to take a break and see what happens here for a while.
'12 Camaro T3 2SS/RS LS3 M6, SLP TVS 2300, Flex Fuel
I'm going to try this and I will report back. I'll finally have my regular VIN backOriginally Posted by BackyardTurbo_FTW
Try using a regular 09 file with the Map values changed to GMS1 values and see if it controls boost for you(new tables are nice
09 RY Cobalt SS Coupe - 19K miles - Bolt ons + 7163 ZFR, HP tuned on ethanol
Sold - 09 SRTC Cobalt SS Sedan
Totaled - 09 VR Cobalt SS Sedan
Sold - 09 RY Cobalt SS Sedan
Worked out perfect for me Leafy. LTFT settled in between -0.8 for morning temps and 0.0 for afternoon temps.
09 RY Cobalt SS Coupe - 19K miles - Bolt ons + 7163 ZFR, HP tuned on ethanol
Sold - 09 SRTC Cobalt SS Sedan
Totaled - 09 VR Cobalt SS Sedan
Sold - 09 RY Cobalt SS Sedan
This also worked for Sundevil. He has been tuning all day, I have like 200 texts from him just from today. hahaWorked out perfect for me Leafy. LTFT settled in between -0.8 for morning temps and 0.0 for afternoon temps.
He is trying to settle his STFT's still.
So... much.... tuning!!!!
Moved everything over to my "stock tune" file and did a write entire. Now my boost gauge no longer sits at zero with the key in the acc-pwr on position but a few ticks below. While comparing my stock file to the GMPP file, it still shows my MAP Sensor Linear as being different even though its not....I'm going to try this and I will report back. I'll finally have my regular VIN back
Maybe I'll try this again after the next BETA is released...
09 RY Cobalt SS Coupe - 19K miles - Bolt ons + 7163 ZFR, HP tuned on ethanol
Sold - 09 SRTC Cobalt SS Sedan
Totaled - 09 VR Cobalt SS Sedan
Sold - 09 RY Cobalt SS Sedan
I'm glad I could help. I'm all for the further development of this engine, mostly as a pride thing against the imports.
1994 Mazda Miata turbo, aero, hoosiers Class=SSM
Take my drop box referral and we both get an extra 250 Mb free!
Bummer man, but thank you for the tip on inj constant its working very well, getting the trims dialed in and having fun with timingMoved everything over to my "stock tune" file and did a write entire. Now my boost gauge no longer sits at zero with the key in the acc-pwr on position but a few ticks below. While comparing my stock file to the GMPP file, it still shows my MAP Sensor Linear as being different even though its not....
Maybe I'll try this again after the next BETA is released...
It's all good. I'm sure there are other beneficial files in the GMS1 OS that we don't yet have access to (I'm probably lieing to myselfBummer man, but thank you for the tip on inj constant its working very well, getting the trims dialed in and having fun with timing) and will just write-entire back.
Hey no problem. Just passing on what was shared with me. Yea, enjoy the E for sure. Just be careful and take your time. You'll have your clutch crying in no time!
09 RY Cobalt SS Coupe - 19K miles - Bolt ons + 7163 ZFR, HP tuned on ethanol
Sold - 09 SRTC Cobalt SS Sedan
Totaled - 09 VR Cobalt SS Sedan
Sold - 09 RY Cobalt SS Sedan
Good idea.Try using a regular 09 file with the Map values changed to GMS1 values and see if it controls boost for you
As per Chris:
NOTE!!!!
The Fuel Pressure Tables have the RPM and Engine Torque Axis' Flipped!!
I was flipping them in my head the whole time so they actually made sense.
wonder what the point is to these changes between 2009 gmpp and 2010 gmpp? wouldn't all the fuel injection parts be the same for all the cobalt tc's? the stock 09 and 09 gmpp have no differences
'09 cobalt ss. hahn intercooler, intake, cp,catless downpipe, ottp stage 2 mounts, hptuners, gmpp 3bar tmap sensors, hybrid hp tuned
Cam tables are different on the '10's also. Might be for emissions?
'12 Camaro T3 2SS/RS LS3 M6, SLP TVS 2300, Flex Fuel
Hey guys, I just posted this on the Solstice forum in response to yet another question about modding the LNF's. Thought it might be good info here that we can build on if it makes any sense. If it's not cool to mention that other tuner's name I can delete it.?
Here it is...
This question about the gms1 tune vs. aftermarket comes up often, I have an analogy or numbering idea that might help clear this up a little...
0 through 10, 10 being as much power as an LNF can put out, 0 being a bone stock NA 2.4L.
Bone stock 2.4L------ 0
Bone stock 2.0L------ 2
2.0L w/gms1------ 3
W/gms1 and HPT or
Trifecta tune on top------ 5
HPT or Trifecta tune only------ 4
Gms1+HPT or Trifecta+E47------- 6+
Gms1+HPT or Tri+E47+bigger turbo------- 8
Sides...
Intake------ .1 Sound mostly
Cat Back------ .2 Sound mostly
Hi Flow Cat------ .6 More sound but also power
Bigger IC------ .6 If you have supporting mods
Charge tubes------ .2 If you have supporting mods
E47 (50% E85+ 50% 91octane)------ 1.5-2.0 Depending on tune and mods
Little bit bigger turbo or wheel kit------ 1-2
Big or well matched turbo----- 2-4
Internal engine work (head work,
valve springs, pistons, rods, neutral
balance shafts, etc.)------ 1-3 Mostly for safety but valve springs are a must if going bigger on boost
or rpm's. IMHO pistons also.
Meth------ 1? Safety for higher boost on 91oct
Porting throttle body----- .1
LE5 throttle body----- .5 With higher flow mods (turbo, etc)
Obviously these numbers can be argued to death, don't take this as gospel. If anyone sees something that looks obviously wrong or doesn't add up, let me know and I'll edit it. Or if I forgot some mods. Also, of course the numbers won't exactly add up, because guess what, they don't in real life either! Put on the wrong bolt-ons or do the wrong tuning and you may loose power.
Hopefully the formatting of this posts OK.
Last edited by gmtech16450yz; 04-05-2011 at 02:03 AM.
With regard to the Delta and the terrible intake design, unlike the HHR and Kappa platform, the intake tube itself leaves a lot to be desired and definitely is almost as important as a down pipe.
09 RY Cobalt SS Coupe - 19K miles - Bolt ons + 7163 ZFR, HP tuned on ethanol
Sold - 09 SRTC Cobalt SS Sedan
Totaled - 09 VR Cobalt SS Sedan
Sold - 09 RY Cobalt SS Sedan
* disregard
Last edited by pantherqs; 04-02-2011 at 07:29 PM.
I just installed the GMS1 OS on my 09 cobalt (with stock map sensors) and changed the linear slope and offset to match the stock sensors. The boost gauge was reading 2 psi with the key in the run position, but engine off. I took it for a quick spin and saw about 1 or 2 more psi at peak boost since I didn't raise the DAL (from 245ish). However, the LTFT, STFT, and KR were not logging. Sure enough, two starts later I got a code P0107 (MAP sensor range low). I don't know if it was a coincodence or not since I have popped a MAP sensor before. Either way, the available MAP sensor slope and offset in HPT are not enough to properly adjust for different MAP sensors. There must be more that needs to be changed.
2008 Saturn Sky Redline
Best 1/4: [email protected]
2009 Cobalt SS/TC Sedan
Best 1/4: 13.27@105
Both HP tuned and all else stock.
Are both stock sensors on the Balts MAP sensors as they are when you upgrade the sensors? I have a 07 Sols GXP and one was a MAP sensor and the other looked like a Temp sensor. Can't remember but I thought the temp sensor was on the oulet charge pipe and the MAP sensor was on the manifold.
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