Alright I found this from someone that was selling an s-afc:

"Description from APEXi :

The Safc is only good for up to 540 cc injectors in our cars. The way this is calculated is that you will see that they state it is good for a 50% variation from stock configuration. Our stock configuration is 360 cc injectors. 360 cc times 50% is equal and very easily calculated as 180 cc's. 360 cc's plus 180 cc's is equal to 540 CC's. While 550 cc injectors from RC Engineering are flow tested pretty close to 550 cc's they are also flow tested at 45 lbs fuel pressure. Our stock fuel system puts out about 43 psi at full voltage. With this calculation, the injectors will also put out a little less than 550 cc's so we will be running our SAFC at close to maximum variation from stock however it should work without problems."


So the s-afc is only good for 540cc injectors?

 

I believe, (someone correct me if I'm wrong) that that would only be an issue if you were running a stock setup. If you have mods requiring more fuel, then even if you install 720's and they need to be leaned out, you won't have to lean them out more than the 50% the S-AFC is capable of. Make sense?

Dan

 

Whoever wrote that is on crack. TIIs have 550CC injector stock.

 

ya on a car that comes with 360s.... and that's asuming you don't even need more fuel. if you add bigger injectors and need the fuel. it would still be at 0 anyways.