I am planning a turbo system and thought that i bought the right compontents to start a good fuel system. i bought this fpr
http://cgi.ebay.com/ebaymotors/FUEL-PRESSURE-REGULATOR-CHEVY-CAVALIER-95-01-2-2L_W0QQitemZ8034948528QQcategoryZ33742QQrdZ1QQcmdZViewItem Now it says its a 1:1 boost / fuel ratio but after reading information it looks like some people have 8:1 or even 12:1. so im starting to think this isn't going to work (not enough fuel)
i also read that an apexi safc 2 is a wast of time because you can't add more fuel for boost- good thing i didn't buy that yet.
so i've heard cartech and vortech are good - do they suppy different fuel / air ratios based on boost? or are they just like a set 12:1 ratio
i've been reading info and im getting even more confused. so if i get a cartech rising rate fpr what else do i need? I am going to run 6-7 psi with stock injectors and pump for now
its probably not adviseable to use your stock fuel pump for any sort of rising rate fuel pressure regulator.
If you want to go with the band-aid Fuel Management Unit.. you'd be best off using a Cartech 2025 adjustable rising rate fuel pressure regulator that is boost sensitive.
If anything I would run a high output inline fuel pump for now if you're only going with a low boost setting. Ultimately the Walbro 255pph intank pump is probably your best bet, but is a pain to do if you're not so inclined.
Also I would not run any amount of boost without using some sort of wideband monitoring device to see that you are not leaning out.
the cartech will allow you to finely adjust the amount of gain as per boost pressure.
how come the cartech is a band-aid unit? i see lots of people here running it and thats the most popular fmu i've seen for our cars. so the cartech is fine tunable for boost - and the one i got i should sell right?
i really don't have the money now for a high flow walbro 255 even though they are very good quality - i see lots of people here running boost with stock pump - obviously not the smartest and safest thing to do i know - but got to work with what i got
the only thing is the stock fuel pump isn't capable of holding high pressures for long periods at a time, and the end result is a leanout.
FMU's in general are bandaid methods, but they make for an easy fuel upgrade for boost.
Cartech PN: 2025 is the one I would recommend.
If you could even find an inline for cheap, you'd be better off then nothing.
andrew mills-
Just a word of advice, man: If you're hard-up for the money to buy an upgraded fuel pump, that probably means you wouldn't have the resources to replace your engine if it leans out and blows. Lots of people leave it up to "luck," but if this is your daily driver, it might not be the best idea. Not trying to come down on you--just my $.02.
ok so is this fpr going to work on my car
stevefire wrote:the only thing is the stock fuel pump isn't capable of holding high pressures for long periods at a time, and the end result is a leanout.
FMU's in general are bandaid methods, but they make for an easy fuel upgrade for boost.
Cartech PN: 2025 is the one I would recommend.
If you could even find an inline for cheap, you'd be better off then nothing.
I disagree... my stock pump has been pushing 75 lbs of fuel pressure now under boost since last april and never a problem... and I boost a lot..
the stock fuel pump is fine for boost.. unless uyou want to go oer 10 psi or 9 with an fmu then I suggest getting a helper pump or replacing the intank
LE61T PTE6262 Powered 
can anyone tell me if this fpr will work on my car? it is adjustable, but it says that it is a 1:1 ratio, that seems low, but if it is adjustable will it work?
