2011 CTSV, Please Help dialing in ID850 data

[uptownv]

Help me out guys. I have a 2011 CTS-V(LSA 6.2L Supercharged) with A6.
I'm a complete Tuning newbie and I feel like my engine is about to blow up anytime soon.

Long Story short...
my tuner, which is the only tuner with HP tuners in town, seems he doesnt know how to dial in the ID850 data.
We looked at it together today and the problem is the x/y axis of the tables in the ID850 data sheet I got form ID hompage doesn't match the tables on HPT program.

ID850 data vs. HP Tuner.jpg


Since the units were different, we weren't able to paste the data.
The tuner tried to dial-in all the numbers himself on a dyno but eventually failed.

The car doesnt seem normal at all.
The engine sputters at cold start, and remote start doesnt work.
Also the acceleration is not smooth.(actually very rough)
and I think I smell gas.

So, Can anybody please download my current HPT file and dial in the correct numbers for me?
and take a look if there's anything else wrong?
I read I may have to change the MAF data, but I have no idea what I should dial in.
(please find my MODS on my sig.)

Every data you need including ID850 Data sheet from their hompage is attached below.

and my email address is [email protected]



[attachments]

1. My Current Tune File :
Base Tune_Vincent_2011 CTSV A6_151206_2.55 pulley, ID850.hpt

2. ID850 Data Sheet :
ID850-GM-Characterization-Tables-3-23-2011.xls

3. ID850 Slope & Offset vs Pressure :
ID850 Slope & Offset vs Pressure.jpg


----------------------------------------------------------------------------
2011 CTS-V, A6

MODS : Stage 1
- 2.55" LPE Upper Pulley
- Airaid CAI
- Corsa Axle Back
- ID850
- Weapon X HX
- Varimax High Flow HX pump
- NGK TR7ix Pugs & MSD Wires
- 160 Thermo

[DSteck]

See attached. The offset screen you've linked is not the right one.

[uptownv]

See attached. The offset screen you've linked is not the right one.

Thanks D,
I honor this.

I see you fixed the :
- Injector Flow Rate vs. Pressure Delta
- Injector Flow Mult vs. MAP : fixed to 1.0
- Short Pulse Limit : 3.000 -> 4.000
- Minimum Injector Pulsewidth : 0 rpm 0.125 -> 0
- Makeup Pulse Minimum : 1.3 -> 0.1


I have 2 last questions before I start up the engine again.

1. Isnt' the short pulse limit 3.000 instead of 4.000?
2. Why is the "Injector Flow Rate" a little bit different from the ID850 data sheet?

[schpenxel]

The short pulse limit basically tells the computer at what point it can stop adding on anything for a short pulse adder. If you look at the short pulse adder table you'll see that after 2.5 ms it's zero, so whether it keeps adding on a short pulse adder after that point or not doesn't matter, since it will just be adding on zero. You can tell it to stop looking at the short pulse adder table at 3 ms or 4ms, doesn't matter.

Probably from rounding. All values get rounded off to some degree.. some are obvious, some aren't.

DSTeck knows more than most of us so I'd use his file without any concerns.

[uptownv]

Thanks guys. I checked the pulse adder table and noticed.
Of course I know DSteck is the best when it comes to ID injectors.

So I wrote the tune file that DSteck gave me onto the car,
and all I changed is the "Tire Size" and "Gear Ratio" under the speedo menu since my sedan has coupe rear wheels. (285/35/19 -> 295/35/19)
I'm not sure if I did it right but used the calcuator and dialed in below number :
- Tire Size : 2605 -> 27.1
- Gear Ratio : 3.23 -> 3.26

Now the car runs a lot smoother and it runs well when it's warmed up.

But still at cold start, the car rattles and sputters for the first 2 seconds.
and the rattling It's a lot worse when I use the remote starter with the key. The starter motor keeps sparking till the engine is on.

It feels like the injectors are not getting enough fuel quickly enough to smoothly start the motor.

Since the fuel part was modified by Dsteck, would it be something other than fuel that I have to callibrate?
For example, I think I read something about PE (though I'm not totally sure what that is)

Would it be okay to ask if anybody might please check the current tune file and see if anything is wrong? It's attached.
I'm pretty stressed and desperate, and would greatly appreciate any help.
I wish there was an experienced tuner here in my city that could help me take care of this, but unfortunately I'm the only one here attempting this tune.

I've also attached some run logs just in case it might help.
One is idle and normal drive, and the other one is 80% throttle WOT.


Thanks guys.... Please help me get some sleep.

[Attachments below]

(DSteck updte) Vincent_2011 CTSV a6_2.55 Pulley, ID850s_151206.hpt
80% Throttle.hpl
Idle & normal drive.hpl

[SultanHassanMasTuning]

minimum pulsewidth is .125 and make up pulse width as well .125

[DSteck]

Pretty sure the tune in general is just garbage. I thumbed through it a bit and raised my eyebrow on a few things. You're better off starting from a true stock file and doing a custom tune instead of that canned Diablo crap.

[schpenxel]

Indeed

[uptownv]

minimum pulsewidth is .125 and make up pulse width as well .125

Seeing your sig, I see you use both HPT and CMR.
From the point of view from a tuner, is HPT more detailed over CMR?
How do you compare these programs?

I know most GM guys would say Diablo is trash, and yes indeed the canned tune in the diablo device is trash
but I'm talking about CMR.

HPT is the best tuning program if I'm willing to learn how to tune myself,
but I'd rather prefer the professionals do the tuning for safety.

I have both devices and need your opinion to decide which one I should get rid of.

[uptownv]

Pretty sure the tune in general is just garbage. I thumbed through it a bit and raised my eyebrow on a few things. You're better off starting from a true stock file and doing a custom tune instead of that canned Diablo crap.

That bad?
So the rattling at cold start is not related to fuel tables?

I was guessing something was wrong within the fuel tables or anything directly related,
since the car ran fine before I installed the ID850(except the IDC was reaching 105%)

I'll eventually find someone to get me a nice custom tune, but I need a little more time to search for the right person.
I just want the car to withstand untill that day.

[schpenxel]

Seeing your sig, I see you use both HPT and CMR.
From the point of view from a tuner, is HPT more detailed over CMR?
How do you compare these programs?

I know most GM guys would say Diablo is trash, and yes indeed the canned tune in the diablo device is trash
but I'm talking about CMR.

HPT is the best tuning program if I'm willing to learn how to tune myself,
but I'd rather prefer the professionals do the tuning for safety.

I have both devices and need your opinion to decide which one I should get rid of.

The more you learn, the more you'll find out most "pro" tuners aren't far ahead of you.

[GHuggins]

Seeing your sig, I see you use both HPT and CMR.
From the point of view from a tuner, is HPT more detailed over CMR?
How do you compare these programs?

I know most GM guys would say Diablo is trash, and yes indeed the canned tune in the diablo device is trash
but I'm talking about CMR.

HPT is the best tuning program if I'm willing to learn how to tune myself,
but I'd rather prefer the professionals do the tuning for safety.

I have both devices and need your opinion to decide which one I should get rid of.

I know the question wasn't meant toward me, but I find HP not only much more user friendly, but it has much more detail available with 3d graphs and so on. Not to mention the virtual ve tool that HP now has. Not to mention the fact that HP typically has more tables. I mean diablo couldn't even change injection timing until I had them add it to it which brings up anoter point... HP added a missing Instrument Cluster Table to the ZL1's for me in 1 day... It took Diablo a little over 3 months to add the injection timing tables... How did anyone tune for cams using CMR before that? Oh well, now I'm ranting... I really prefer HP over CMR and SCT even though SCT does have some throttle and torque tables that HP is missing that I really don't want them to add because if screwed with it can really be dangerous - I even told SCT they should probably remove them after I messed with them and lost the rev limiter Over all "I" prefer HP Not to mention pricing... CMR $6000 or more depending on setup / HP $700ish, but lot's more tied up in credits? Not sure on that one, but at least customers can pay for the credits? Cobb's nice... Haven't personally used efi yet even though I've got it, but do hear that they give you base tunes? Not sure on that one. Most base tunes are junk after all... Oh well, like I said now I'm ranting Sorry for getting off topic.

What was the original post about?

[uptownv]

I know the question wasn't meant toward me, but I find HP not only much more user friendly, but it has much more detail available with 3d graphs and so on. Not to mention the virtual ve tool that HP now has. Not to mention the fact that HP typically has more tables. I mean diablo couldn't even change injection timing until I had them add it to it which brings up anoter point... HP added a missing Instrument Cluster Table to the ZL1's for me in 1 day... It took Diablo a little over 3 months to add the injection timing tables... How did anyone tune for cams using CMR before that? Oh well, now I'm ranting... I really prefer HP over CMR and SCT even though SCT does have some throttle and torque tables that HP is missing that I really don't want them to add because if screwed with it can really be dangerous - I even told SCT they should probably remove them after I messed with them and lost the rev limiter Over all "I" prefer HP Not to mention pricing... CMR $6000 or more depending on setup / HP $700ish, but lot's more tied up in credits? Not sure on that one, but at least customers can pay for the credits? Cobb's nice... Haven't personally used efi yet even though I've got it, but do hear that they give you base tunes? Not sure on that one. Most base tunes are junk after all... Oh well, like I said now I'm ranting Sorry for getting off topic.

What was the original post about?

No you pretty much gave out a point.
So HPT has a lot more tables....?

I'm just wondering why Dodge guys praise CMR so much while GM guys are on the opposite side,
and how Dodge guys well tune their cars.

[SultanHassanMasTuning]

Seeing your sig, I see you use both HPT and CMR.
From the point of view from a tuner, is HPT more detailed over CMR?
How do you compare these programs?


you can not compare at all, the way CMR doesnt injector change is no where as detailed as HPT

I know most GM guys would say Diablo is trash, and yes indeed the canned tune in the diablo device is trash
but I'm talking about CMR.

HPT is the best tuning program if I'm willing to learn how to tune myself,
but I'd rather prefer the professionals do the tuning for safety.

I have both devices and need your opinion to decide which one I should get rid of.

[jettaTDI]

Are you in Reno? I'm a relatively new V sedan owner in Las Vegas.