if i run 5 psi would it be ok or better to run 440ccs/s-fum/s-afc?
i was jusy wondering i will run 8psi somtimes but not daily?

> if i run 5 psi would it be ok or better to run
>440ccs/s-fum/s-afc?
>i was jusy wondering i will run 8psi somtimes but not daily?


You know that people are running 8 psi on stock internals and stock injectors. (if not, you could search to find that out) If you are going to run 8 psi or less, you DO NOT NEED TO DO ANYTHING!!!!

ok but i mean iam going to do a rebuild and would it be ok to run this at 5 or 8psi for a wile?or not a good idea

5-8psi stock internals or not you dont need to upgrade your injectors. if you run 9psi+ then upgrade them.. why would u want to run 5-8psi on a built motor anyways? pointless...


Michael 99gs
HRC Stage 2
Stage 3 process begins anyone got a 420a block thats not spun etc?

http://www.dreamwater.net/purplebeast

However, running 5-8psi with bigger injectors, and a better fuel pressure regulator is safer.....More fuel, less change of blowing engine.

i wont be runnig 8psi on a built motor iam just saying before i build it.like the time it takes me to get the money.;-)

No dude just wait until you rebuild. Save enough money for the rebuild and the injectors/afs or whatever then put it all in at once. Your going overkill for now. Just let it chill and start saving some loot for both. Why have all those extra electronics if you don't need them yet. Put that money into preparing the engine to take advantage of them.