Re: FMU + FPR Question
 

255 high pressure fuel pump...walbro
100 bucks(US)...im running with the fmu too
and it made a difference(from what
my wideband tells me)
i went from not even gunning the thing
to have safe ar(11:9-12:3) with the
fuel pump on 8psi.
going to chip the ecu though...with
injectors so not keeping the fmu for
long.

Re: FMU + FPR Question
 

for starters i know ur internal gate is set to 12. but u only wanna boost 6psi max. your gonna have to get the dp flange block-off n run the external wg only. you dont need both. i mean u could jus leave it there n not hook up the vacuum line hoping it stays shut. i had problems doing that over time, but it would work.

and if ur on the fmu long enough, you'll be chippin sooner then you think, not with a new car but with a nwe motor.

walbro intank or inline. doesn't matter i guess. use the intank, its always gonna be there.

Re: FMU + FPR Question
 

did you had FMU 12:1 and no fuelpump first?
what does gunning mean? 11:9 ?? i dont understand the 11:9-12:3

can i use a smaller pump than 225 walbro? something like a interga pump?
whats the difference between the stock civic pump an walbro? stock pumps 100? walbro 225?

@ turboDA6

i leave the internal wg closed there is a closed flange on it.

Re: FMU + FPR Question
 

i know that... its not a close flange, its the wg flapper. i had an issue with keeping it on, it opened under boost for me. then again im running way more boost then you.

the 11.9-12.3 is the air fuel ratio. those basically perfect ratios but i still wouldn't trust it on an fmu... a stock pump is stock. its only made to push fuel for the motor naturally aspirated. when u add air, u need to add fuel. so a bigger fuel pump is needed.

Re: FMU + FPR Question
 

ok i was a little conufsed by the 11:9 istead of the 11.9 thanx.

the walbro pumps 255lbs fuel
howmuch does a stock fuelpump pumps?
civic '90 1.6 sohc

ive seen on the internet some 190 lbs fuelpumps, is this also good enoug?

Re: FMU + FPR Question
 

a stock pump is old... dont rely on it. for the price dude, just grab a 255 walbro. its the best bang for the buck

Re: FMU + FPR Question
 

I just shipped a chipped ECU to the Netherlands...I've actually shipped a few now. I think its starting to pick up abroad.

Re: FMU + FPR Question
 

what was the total price of it? i mayb its a good idea for me to chip 2.

if ill buy the chip, what do i need for my setup?
6psi
255lbs fuelpump
stock injectors?

and the chip? (eprom?)

if i have chipped my ecu, can i then just add more boost? or do i need to re-chip, if i wanne run 8psi?

Re: FMU + FPR Question
 

you need some bigger ones, you can boostl ike 4psi on stock injectors but thats cuttin it close. dsm 450's are all over this site for like 50 bux

Re: FMU + FPR Question
 

ok so if im goin to chip then i need
450cc injectors
255lbs fuelpump
turbo, ic wg bov pipes, oil lines.
chip.

but i still dont have the awnser on my Q howmuch a stock fuelpump pumps. stock like 100 lbs? dunno? just guessing