redlseg

heres my set up- revhard mani, turbonetics wastegate, vortec bov and a small garret turbo. i'm going to be using a vortec fmu. i plan on boostin it up to 6-8psi. is it safe to run the fmu until i get enough money to buy a management system?

Dunc

tune it with the fmu and you'll be ok. Just hurry on the EMS haha

redlseg

just wondering can i tune it myself with a a/f gauge?

redlseg

ttt

dustin

There is nothing to "tune" on an FMU setup.

redlseg

sorry i meant to adjust the fuel and air ratio on a/f gauge. can i do it myself or do i have to take it to a shop

dustin

But what are you going to tune/change? An FMU setup doesn't have adjustable settings.

redlseg

my fault the fmu is a jacksonracing 12:1 fmu theres an adjustable screw just like a fuel pressure regulater


Modified by 95eg6allmotor at 12:33 PM 4/27/2005


Modified by 95eg6allmotor at 1:10 PM 4/27/2005

redlseg

i cant find a pic of the jacksonracing fmu but heres a simiar pic of what it looks like
http://cgi.ebay.com/ebaymotors...33742

dustin

Heh that's not going to adjust much of anything.

redlseg

what do u mean?

s2kdre

you dont tune a 12/1 fmu, but if you need to tune it a little you can adjust the flow of vaccum that the fmu is getting, but you wont need to do that.

Spyderman4g63

What is the screw for then?

redlseg

so basically the adjustment screw is for the vacuum? and it has nothing to do with the psi of the fuel? i got the fmu from a kit i bought from another form and it came with it.

N20civicB18

you can not tune that, there is nothing to tune.. its gonna raise your fuel pressure 12psi for every 1 lb of boost and thats that

redlseg

i know it cant be tuned now, but what is the adjustment screw for?

redlseg

????

redlseg

nobody knows what the adjustment screw is for?

redlseg

nobody knows what the adjustment screw is for? man this is sad

redlseg

comeone someone has to know this

sadangryboi

dont mess with it if it aint broke...

redlseg

so basically u guys dont know what the adjustment screw is for? i'm just wondering cause the guy i bought it from was boostin 10psi and i'm only going to boost 8. and i dont know if he messed with the screw or not? i just dont want my motor running rich or lean. does any one know? please help me out here

omahaturbocivic

Some fmus are adjustuable and you can actually adjust the ratio, they are not stuck at the typical 10:1 or 12:1 like the typical vortech units, you can actually adjust the ratio by a screw without having to change the disks. If you insist on using it I would not mess with it without having a wideband o2 on the car to make sure its not running to lean. Retard the distributor a bunch otherwise the timing will kill your motor just as fast.

ncervantes

95eg do yourself a favor! Go to http://www.homemadeturbo.com and talk to 'Projekteg'. He can hook you up with ubertdata cheap and give you something allot more reliable than an FMU.

dustin

Yeah if you really have a "95eg" then you are obd1 so uberdata is going to be cheap for you.