I had a few questions about the safc and afpr. I understand thats a safc is for tuning and adjusting fuel and air to lean and richen the fuel mixture and an afpr is used to prvide more fuel to the injectors. I was wondering if these are both needed to tune with a wideband. Since as far as i know an apexi safc does control fuel and air so why would a afpr be needed? could anyone explain this to me?
safc and afpr quesiton
- Thread starter rocktownmkIII
- Start date
because a good afpr is a Percision part....it flows better, more reliable, with a 12v fuel mod it makes tuneing much easier and safer...you can increase fuel pressure if needed to avoid leaning out at high rpms....
It's just the proper way to do things and makes your life easier.
It's just the proper way to do things and makes your life easier.
gaboonviper85;1091212 said:
well i get what your saying but do you need an afpr or just a fpr i thought the safc was used to ad fuel to richen and take fuel to lean out the mixture so why would you need 2 ways to adjust fuel pressure
safc doesn't adjust fuel pressure 
Do some more research on piggybacks and what they do....I'd tell you but it's easy info to find and learn on your own....
No you do not "afpr" if you only plan on an extra 30hp...but if you big changes in power you need to upgrade fuel delivery...the stock system just made it.
Do some more research on piggybacks and what they do....I'd tell you but it's easy info to find and learn on your own....
No you do not "afpr" if you only plan on an extra 30hp...but if you big changes in power you need to upgrade fuel delivery...the stock system just made it.