I'm going low boost (~6 psi) and my question is: can I leave the stock MAF on? Or will it cause problems? I'm using an FMU and a SAFC to get the extra fuel in there.

 

Yes you have to leave the MAF on.

 

^ Alright good. I've heard of people converting to MAP sensors instead but that seems like a lot of work.

 

yeah, you have to leave the MAF on LOL!!!

can put it pre-turbo of after turbo

 

Ok now you are all making me look like an idiot haha. STOCK MAF! As in leaving it stock. Not having to sketchily hack it or something. (even though the SAFC kinda does that) I know it has to be there lol.

Edit- And yeah I guess the way I worded it made it sound like that ha.

 

I think you could use a larger GM MAF but I wouldnt bother. But be prepared to upgrade I dont think the SAFC will do that great for you. Will have better luck just with the rise in fuel pressure.

 

^ A tad off topic BUT: Do you think the stock injectors can handle a 10:1 rise at ~6psi?

 

10:1 rise at 6 psi would mean over 100psi of fuel pressure, sounds pretty high.

Stock pressure is like 40, you would be delivering about 2.5 times more fuel for 6 psi which is only 1.4 times atmospheric pressure.. In addition, the ECU would probably send somewhat more fuel than N/A, since the MAF will detect more air (up to a point).

 

That much fuel pressure will not work with the stock fuel system. You can maybe raise it 10-15psi but that is still a bad way to tune as its not nearly accurate enough.