Opinions On Tune

[02ss]

Just want to get some opinions on the tune im running in my 2006 c6 with 402 and small cam. Any suggestions would be great

[262]

Startup airflow seems to need a little tweak.

Your crossover from low to high maf do not match.

misfires are tuned off completely.

Is this tune scaled? Cause fuel injector size is smaller than stock.

[02ss]

not really sure to be honest this is the tune that was in the car when i bought it. The car is a 2006 ls2 car and the injectors are stock

[mowton]

You have alot of knock at wot acceleration. Would get a wideband on her as soon as you can. If you don't have a WB, I would log MAF HZ and in the area's where you show the large knock (frame 8561, see the NB o2's aren't even at 900mv; tells me its lean!) I would add a little fuel to get rid of the knock.

Not too much performance tuning other than a bit more MAF and timing. VE is stock. Trims are off a bit more than acceptable (>5%)

If injectors are stock, then why is the IFR fiddled with Put them back to stock when you start your tune. All else is stock or do you have Headers, CAI etc?

Thanks,

Ed M

[02ss]

Thanks mowtown, mods are below, and how much do you think im leaving on the table?

The mods are as follows, ls2 block .020 over mahle flat top pistons with valve reliefs (unsure of size), 4" callies dragonslayer crank, ported 243's, 215/223 .604/.610, fast 92, kooks 1 7/8,6 speed car

[mowton]

I am more concerned about the lean conditions developing the knock and the fact the VE is stock. 2006 uses GMVE, the cylinder volume is baked into the equations which develop coefficients. Changing the Cylnder Volume table will not readjust the VE. You use the same tuning process but need the BlueCat software (links can be found in forum) to develop a new VE table and cooresponding coefficients.

Run through the tune roadmap and get her tuned to match your setup.

Ed M

[02ss]

Here is after bluecat, let me know what you think

[mowton]

Here is after bluecat, let me know what you think

You added fuel at wot via PE......works, but not good. Should be through wideband tuning with a straight line PE Do you have a wideband? Why isn't the injector data match stock?

Ed M

[02ss]

okay i did change the ve with the bluecat program, and no i dont have my wideband in yet should be here on wed, and i dont have the stock tune so i dont know the stock injector data as i bought the car from someone who had supposedly had tuned by a shop here in houston

[IDRIVEAG8GT]

Download stock tune from repository.

[02ss]

what is different about the injector data?

[mowton]

Here is the stock tune I believe for you car.

Ed M

[DGA]

Looking at the log on this car, the MAP goes all the way to 344 kpa. I am still having problems with mine on the aircraft. How is this possible? 344 Kpa is about 48 Psi, somewhat confused.