FPR as FMS for Turbo Project???
 

I was thinking...how many PSI do i really need to fuel my injectors? how many psi of fuel will the safc give me. I think i have 240cc injectors now. and i will be installing 390cc injectors. couldnt i just use a FPR to give me fuel system the fuel it needs? and not buy an SAFC...am i right? because i know that the injector cc to psi conversion is like for every 9.9cc = 1lbs/hr(something like that) so can i just use a FPR to fuel my injectors? and then i would have to buy a new MAP sensor...right? because doesnt the hack trick the sensors? ???

Re:FPR as FMS for Turbo Project???
 

you have more posts than I do so you might know more than me since Im knew to this ---- but I think a fmu and that size injectors is going to flood youre ----.a few buddies of mine run fmu's on there cars with factory injectors(240cc)at 8 lbs and there cars do fine.I would saysince we both have the same car ---- the fmu and ---- the safc because there both going to cost more then uberdata and give you lest for youre money.uberdata and 450 dsm inj. and you can fine tune youre ----.but then again Im a newbie so what the ---- do I know :-X

Re:FPR as FMS for Turbo Project???
 

you dont want to turn up the pressure with 390s. go out and get 450s and either use uberdata or an afc to turn them down. btw: an afc does not turn up the fuel pressure

Re:FPR as FMS for Turbo Project???
 

fmu rasises fuel pressure
afc controls larger injectors

Re:FPR as FMS for Turbo Project???
 

see i dont want to run an FMU, can i just run a FPR(fuel pressure regulator) and compensate for my injectors?

Re:FPR as FMS for Turbo Project???
 

no...you are missing what im saying. If anything, you need to turn down 390s, not up. But using an fpr for fuel management is a horrible idea.

Re:FPR as FMS for Turbo Project???
 

well i want the cheapest fms...so can i use an fmu, and what is the ratios mean again? (ever 1psi of boost = 12lbs of fuel? right? ANYONE EVER USE AN FMU VS AN SAFC???

Re:FPR as FMS for Turbo Project???
 

from what I beleive its fmu and stock injectors or bigger injectors and afc or uber .do you mean fuel pressure regulator as in the one that goes on the fuel rail?if thats what you mean Im not sure that would work.I think the car would go lean unless you had a real low boost setup and I still dont think that would work.stop being cheap cause itll cost you a motor in the long run and a ass load of money.uberdata is only costing me 110 with datalogging port base map to get started .and another few bucks for dsm injectors and thats still lest than what I payed for my knew vortech fmu($170).I think thats a bargain since you can tune your ---- yourself with a laptop.some people even do it for a little less but all I wanted to do was plug the ---- up and get it tuned.

Re:FPR as FMS for Turbo Project???
 

damn yah boys type fast.by the time I finished yall already had a conversation.or I just type to slow

Re:FPR as FMS for Turbo Project???
 

fmu=poop
fpr=big pile o poop
afc=poop that smells good
uberdata/turboedit= mmmm

Re:FPR as FMS for Turbo Project???
 

I dont get how uberdata works...can someone just explain how you make this thing work. i mean everyone says go with it, but i dont know what it is. i am sure that this has been brought up a thousand times, but can someone just answer this for me?

Re:FPR as FMS for Turbo Project???
 

stock ECU was not made to read boost so when you go pass 0 vacuume, it will only dump that much fuel no matter how much more you boost it. for example the ecu will dump 100 unit of fuel at full thottle (0 vacume), now your motor us seeing 5psi postive pressure(boost) which requirded a lot more fuel to ran it safe, however you ecu will still dump that 100 unit only.
so you chip your ECU to work with a Programmable chip.
you burn the correct program into the chip, now the ECU is capable to read boost and adjust the amount of fuel/timing according to level of vacuume and boost.

also, oem ecu will only allow stock sized injectors.
now let me make something up to help u understand:
say stock injector will dump 50 unit fuel at 1000 rpm by opening the injectors at 0.1 second at TDC, now with you 450cc (or whatever it is) your ecu is dumping WAY too much fuel because it is being open at the same speed (0.1 second) as when it has smaller injectors.which cause it to run too rich = won`t work
the 450s could have doen the same thing by being open 0.05 seconds
(i made all these ---- up don`t flame me :P)


now you got what you want and i wrote what i know. i am looking for a equal length manifold as my birthday present.

Re:FPR as FMS for Turbo Project???
 

its basically the cheap but effective(so I heard)way of having a stand alone.some one chips you ecu down loads a base map for it then you get it plug it up to a lap top and you can control your timing ,air fuel ratio,etc.the only thing you need 450cc..this would do what the afc or fmu btm would do all together.

Re:FPR as FMS for Turbo Project???
 

what donald said ;D

Re:FPR as FMS for Turbo Project???
 

but will someone else, like at a tuner shop, do it for me? or do i do it myself. i already know what the program does, i just want to know how you install it. do i or tuner shop?

Re:FPR as FMS for Turbo Project???
 

So does anyone know this? Becuase I am not undestanding how this uberdata works....because if it is the cheapest and most effective, i would love to use it

Re:FPR as FMS for Turbo Project???
 

well you can learn to install it (basic soldering, etc.) or you can have someone else do it, like anything else on a car

Re:FPR as FMS for Turbo Project???
 

i know someone that ran 10lbs of boost on a t25 and only ways of tuning were a pr4,fuel pressure regulator,and retarded timing. the setup went a 13.2 and lasted a year but i still highly recommend some type of ecu program.

Re:FPR as FMS for Turbo Project???
 

i have no idea what you are talking about...lol :o

Re:FPR as FMS for Turbo Project???
 

Read Read Read
http://www.ecimulti.org/uberdata/

Re:FPR as FMS for Turbo Project???
 

Read the enginemanagement forum and that site above..and www.PGMFI.org