Vortech FMU..
 

Should i just use it? I dont have the cash to get a chip/tuning right now.. unless someone has a hook up!

Someone give me some pros/cons!!

Re: Vortech FMU..
 

Ok, well i just went though some readings, and if im only boosting like 7psi i should be fine..

Re: Vortech FMU..
 

fmu bad

chipped ecu good.

Re: Vortech FMU..
 

Spend the cash now for a chipped ECU and proper tune.

Or spend the cash later for a new engine.

Re: Vortech FMU..
 

you talking honda? if you're doing the reading, you know that most of everyone on here is anti-fmu because they're unreliable, unpredictable, and not tune friendly. it's seriously not that hard or much to find a socketed ecu on here, and xenocron can hook you up with a reliable basemap for next to nothing. fmu was the answer back when options were limited and expensive as ----. there are so many other options now. on the other hand, there are a few guys out there that have run fmu's for miles and miles without a problem. if you've already got it in your head that you're gonna use the fmu no matter what, just expect to be thrashed if in a short time you're posting a "my ---- blew up. why?" thread.

Re: Vortech FMU..
 

for low boost, an fmu with a decent pump will work fine imho. But i mean LOW boost, dont get greedy. Back in the day i beat the snot out of a sohc i had running like 6 psi with an fmu.

Re: Vortech FMU..
 

these guys convinced me to get a chipped ECU and ditch my ganster ass E Manage and AFC Hack i was considering. DO it.

When you get the chipped ECU and base maps (cheap on xenocrons website) its not much more to get a mild tune to check your A/f and ignition to make sure your good to go.

(Did i do/say that right guys? lol)

Re: Vortech FMU..
 

I ran one for a year and a half at 5 pounds on a D engine. Stock pump and all. I never had any problems but I'm moving on to bigger and better things now.
I'd say go for it but keep the boost at or below 5 pounds which was hard trust me... ;D

Re: Vortech FMU..
 

at 7psi your just fine i have seen cars run for years on fmu's :6

Re: Vortech FMU..
 

i bust 10psi .been 11 for the past year
stock d15b8
every day

burnin it up
(*knock on wood)

inline fuel pump, 12:1 fmu,

use it IMO

but I wish I could be chipped with a built bottom end

Re: Vortech FMU..
 

I chipped my ecu and threw a basemap I downloaded from xeno on my b running ~12 psi towards the beginning of this year. I never even drove a turbo car before I put that together and I didn't even have my license till Feb. I'm already trying to get my suspension and ---- ready to up the boost. HOW THE ---- CAN SOMEONE STOP AT 5LBS? That is the question I ask and why I say FMU should never be the route.

besides, don't you need to dick with timing and throw a wideband on it anyway with an fmu? you're basically having to learn how to tune anyway so why not learn with the proper tools?

Re: Vortech FMU..
 

No point in installing a wideband with an fmu, most aren't adjustable.

Re: Vortech FMU..
 

so you just throw it on and pray? ---- that I'd at least want to put it on once to see, but I also hate the theory behind them so ---- it.

Re: Vortech FMU..
 

Yep. FMU's suck.

Re: Vortech FMU..
 

can't you adjust it with an FPR?

Re: Vortech FMU..
 

No. You can change your base fuel pressure and raise it all over, but it won't change the amount of fuel increase the fmu provides in boost.

Re: Vortech FMU..
 

but if u have a wb ud no b4 u blow i had no probs with my fmu i had probs when i got a chipped ecu i have no dynos near by i love my vafc

Did you have to use a missing link...?

fmu are $75 plus get your ecu chip out for about $70-75

FMU's just aren't reliable

Bad tunes are pretty bad too :p

I had a fmu on my old b16t, ran ok and pushed boost to the normal 6-8. For me it was a great temporary and very simple solution. I mean plug in a vacumme line mount the fmu and your done. i see it like a carburator, only worse. with this it giving a set amount of fuel up and down the rpm band (relative to boost).

After i wanted more options i went and bought one of the first sub 800$ widebands (innovate LM1 i think it was), and some 450cc dsms. ran the hack for about another year at max of about 11-14 psi on b16 and ls/vtec. all street tune, colder plugs. dynod something like 215 (really small turbo :p )

that was years ago and now it is much easier to get chips done and base maps that dont suck.



although i know and have run previous ghetto methods end result is i will not do it again. my next setup will be chip and tune. once you have that its just simple. and these days the cost is about the same

I must say, you need to read first the FAQ section of this Engine Management forum, there´s the questions of almost all your answers

Also if you want to regulate your FMU i did a brief HOW TO do that

the biggest problem with one of these is the fact that one day "low boost" wont be enough
and you will crank it up to the next level...
with chipping someones been there done that and has a chip or what ever to set you up trouble free

been there done that... didn't blow up my engine

2x

i actually used a 12:1 fmu, stock fuelpump and chipped my ecu and tuned it with turboedi and also used the FMU. 5 psi. stock injectors.

i had 450cc injecotrs but 2 were somehow not injecting because they layed on the self for 2 years.

YEAH DUDE GET A CHIPPED ECU I RAN A FMU IN MY TEG AND CHANGED THE MOTOR 2 TIMES UNTIL I GOT MY ECU CHIPPED BY XENOCRON DID NOT HAVE A PROBLEM AFTER THAT SO SAVE YOUR MONEY AND GET IT