2G Tuning problems

[Offical_RaceCar]

I have just recently put in 750CC injectors for car. And it has SAFC2 tuning system inside of it. I have no clue how to tune it at all. I would appreciate it a bunch if you leave your help here.

 

[steve]

750cc injectors are commonly considered too large to correct for with a SAFC2 due to the increase in timing that comes with lowering the airflow that much.

The earlier versions of the SAFC didn't even have enough range in their adjustment. IIRC they only had +-30%. The later version providing +-50% adjustment but of questionable use.

You might want to read these Tech Articles:

http://www.dsmtuners.com/threads/safc-tuning-how-and-why.366004/
http://www.dsmtuners.com/threads/how-the-safc-works.105569/
http://www.dsmtuners.com/threads/definitive-piggyback-tuning-guide.58403/

 

[Offical_RaceCar]

So what you're saying its impossible to tune it? No one around my area wants to deal with it or anything. So what are your recommendations on what to do here. I have no clue on what to do here

 

[2gmitsueclipse]

660cc injectors should be fine until you are ready to move onto a new setup. You will also want to invest in a boost gauge and wideband to monitor things while you are dialing in the SAFC. I used Denso 660cc injectors and an SAFC many moons ago. A 190lph fuel pump with a rewire would also be helpful at this level. You shouldn't have to necessarily change to an AFPR using a Walbro 190lph, EVO 8, or EVO 9 fuel pump.

Please read through the links Steve provided.

 

[Offical_RaceCar]

Well the guy we've bought the car from said to buy 750 injectors and said he could walk us through it. He didn't or did he really help us out with it

 

[steve]

The last link I posted will explain to you the process of setting up your SAFC.