N00b here trying my hand at this. 2007 GP with an L32 swap

[lawrence.jerel90]

Hey people,

I am spending a bunch of time trying to get fueling just right logging and adjusting and just figuring out what works.

2007 Grand PRix base model

L32
3.4 pulley
VS Cam
105lb valve Springs
3.29 final drive in the trans
Headers
Double Roller timing chain
42lb green giant injectors
Autolite 104 plugs

6-1 Eva latest MAF adjustment.hpt


I'm getting about 9lbs of boost at WOT and the injectors seem to be holding up fine.

I'll include my latest tune file. I welcome any tips you guys may want to offer.

I'm looking to get my afr to 11.5 under boost.

[5FDP]

If you want 11.5 you need to adjust the MAF curve until you get there. PE is a set and forget table and you remove or add fuel via the MAF to hit your target.

[ZeroBoostBuick]

Transmission tables need lots of work.

the Stock trans tune has a very bad mistake in it. It asks the tcc to apply in 4th gear before the 3-4 shift (in some of the throttle positions). This will make the trans shutter when shifting into 4th.

Look at the trans tables (and copy if you want) from this tune. Especially the auto shift speed / part throttle and tcc apply/release.
Tune is from a 2002 Grand Prix GT L36

Jan30_2017_Read-to-verify-tune.hpt

[lawrence.jerel90]

Thanks guys. That's how I'm adjusting fuel now, against my MAF logs. I'm using the old LTFT+STFT from a stating HP tuners thread that used to be on grandprix forums. I changed the fueling adjustments and spark tables so I have everything uniform to make it a little easier.

Thanks ZeroBoostBuicK for the tip on the trans stuff.

[lawrence.jerel90]

I went E85 and so far I hate it.