I have done a lot of learning thru tuning my NA Goat but now its time to turn up the heat so to speak. This will be my first attempt at boosted tuning too. I need answers to a few questions and a sanity check on my process. I will be limiting boost to 5 psi (big pulley) until I get the tune and basic operation all sorted out but do not plan to go above 8 psi (smaller pulley) for my daily driver.
My Plan:
Before installing the Procharger
1. Install my new DW60 injectors, new DW340 fuel pump and new 12615136 2-bar MAP sensor (Can the OEM OS handle the 2-bar sensor?)
2. Do some basic re-tuning to make sure the above changes don't screw anything up before I install the Procharger
Install the Procharger
1. Re-Tune using the OEM OS using MAF flows, my calculations indicate that limiting boost to 5 PSI should not max out the stock MAF
2. Now upgrade to the 2-Bar OS. (Can I still tune with MAF flow or am I forced to go SD tune?) I need to keep the MAF tuning so I can pass North Carolina yearly emissions since going SD will throw failing codes.
3. Once the above is all sorted out I will tune to 5 PSI in SD mode.
4. If all is well now I will install the smaller pulley for 8PSI and finish filling in the VE tables. This will likely max out the MAF and force me to full time SD tune (If MAF tuning is permitted with the 2-bar OS I will turn that switch once a year to pass emissions and then go back to SD?) keeping my foot out of boost for that day obviously...LOL
5. After the above is all sorted out I will likely go to a boost reference regulator and incorporate the return flow system
I'm sure most of you experience tuners would do this in only one step but I like doing these kinds of things in a controlled process because if something goes wrong I'll know what it was and can fix it without undoing multiple steps.
Any suggestions or pointers would be greatly appreciated