well as some of you may or may not know im in need of a new fmu,the thing is before i get a new 12-1 fmu I happen to have some 310cc injectors so i was thinkin about installing those with a 6-1 fmu and kinda lower pressures,But the thing is is that with the 12-1 fmu/255lph fuel pump/safc2 controller/wideband 02 and stocker injectors i was running a air fuel ratio of around 10.8 and 11.5 so should i just get another 12-1 fmu and keep my setup??? or should I install the 30lb injectors with a 6-1 or so fmu and start the tuning process over.The reason im askin is because i have a feeling the high fuel pressures pre maturley killed my old 12-1 fmu so i was thinkin lower pressure and bigger injectors,Anyway what would you do???

To run larger injectors you need to lower the fuel pressure. You have no way of lowering your using a FMU. You MAY be able to pull enough fuel with the SAFC but I doubt it.

I'd run 10:1, 8:1 at the lowest.

if you've got an SAFC, buy a set of RC 440's and a 3:1 recal disk. They can be made to idle on stock fuel pressures withthe SAFC (at like -48%, LO, 1000RPM :D)

i have a hahn VROG regulator if u wanna buy. PM if interested, otherwise listen to darkone

why not get a SFMU and call it a day? :shrug

SFMU is the best way to go. FMU are shitty and do not work as good. Check ebay and you should be able to find one fairly cheap.

Originally posted by lild14
why not get a SFMU and call it a day? :shrug

trust me i would but i lost my job and cash is tight,I was doin fine for a few years with 12-1 fmu =]

Originally posted by DarkOne
I'd run 10:1, 8:1 at the lowest. if you've got an SAFC, buy a set of RC 440's and a 3:1 recal disk. They can be made to idle on stock fuel pressures withthe SAFC (at like -48%, LO, 1000RPM :D)

so let me get this straite,I called vortech and they say to run a 6-1 with #30lb injectors and they didnt say it was gonna idle like crap?but then again they didnt ask what kind of car and they didnt know what a safc2 was soo,are these new 310cc injectors gonna cut it with my safc and 6-1 if i set my safc to idle better or will my afc even lower it that low?I think Im just gonna get another 12-1 if i gotta go through a hasstle?Thanks for the replys all.heres there ratio chart,says to run 6-1 with 30lb inj?check it out...
http://www.vortechsuperchargers.com/product.php?p=31&cat_key=5
plz help me pick the right choice or i guess ill sell my 310cc injectors.

you expect to take advise from a $7/hr idiot vortech CSR who knows probably nothing on 2gnt's? IMO, if you get another FMU from them, you're hard headed and wasting your $. Either SFMU, my VROG regulator, or stick w/ what you have. do as you wish