FMU + Stock Fuel Pump?
 

I just need a clear cut answer and I'll be finished asking questions... (i think)
D16Z6
12:1 Vortech FMU + stock injectors + stock fuel pump + 5psi boost= ???
will this work?
Or is an upgraded fuel pump necessary?

Re: FMU + Stock Fuel Pump?
 

Its ok at max 7-8 psi

Re: FMU + Stock Fuel Pump?
 

Thank You

Re: FMU + Stock Fuel Pump?
 

i pushed 15 once ;D

Re: FMU + Stock Fuel Pump?
 

For .5 sconds before you blew your ----

Re: FMU + Stock Fuel Pump?
 

nope it was a T2 and for about a week on a mini-me i was trying very hard to blow it but it never happened. still in my garage

Re: FMU + Stock Fuel Pump?
 

Walboro 255's are cheap now like 90 bux shipped. A lil extra insurance FWIW

Re: FMU + Stock Fuel Pump?
 

so an fmu is fine for 7-8psi?

im boosting an aveo and if it could be done with an fmu instead of a maf to map conversion that would be awsome, one questio- how reliable is an fmu up to arround 7psi?

Re: FMU + Stock Fuel Pump?
 

I seriously doubt if an Aveo motor can take 7-8psi for very long.

Re: FMU + Stock Fuel Pump?
 

even with arp studs?
if not 7-8psi what about 5-6psi?
im only hoping for about 140-160hp (stock is 103)
my origonal goal was 200whp but that seems about out of range for the stock engine

my question will the aveo with a small turbo (t3 ,t25,14b somthing of that nature that will spool quick, no need for large cfm as it will be low power,low boost)
and an fmu along with an ebay intercooler and custom piping be reliable
would i need larger injectors for such low boost? if so what kind of injectors do i need to look in to (from what i understand about 170hp (high hopes) requires about 320cc injectors give or take, would some cheap dsm 450's work? would they be overkill? how would i go about either programing or having the ecu programed for the larger injectors and boost
where would i be able to do this? will a standard dyno shoppe be able to dyno tune the stock ecu so handle said mods? will i need some sort of adjustable piggyback?

as for the hardware i have no problems (other than the my welder crapped out 2 weeks ago so i will need to use couplers until i can take it to the muffler shoppe to have piping welded up and i might be buying a log manny and i will need to make an intake manny that is not so restrictive and is not plastic, and i am also hoping to retrofit a larger tb to flow better as with the tiny tb on the stocker even tho it has a 6500rpm redline it runs out of breath at 5500rpm)


if someone could help me trouble shoot these points i would appriciate it i plan on keeping an up to date build thread with pics of the process so (tho hmt will inevitably have members that will so no need for me to give permission to) flame away but if you could keep the flaming to a minimum i would appriciate it

Re: FMU + Stock Fuel Pump?
 

pretty sure they dont make arp headstuds for the aveo motor...

Re: FMU + Stock Fuel Pump?
 

i never expected to find anything model specific so i will get studs that have the same thread count and pitch
i am sure that the aveo dose not use some off that wall head studs that are not used in any other car on the road
make sense?

Re: FMU + Stock Fuel Pump?
 

You are a ------- fool. I see you are gonna start bumping old threads now instead of making your own for your aveo project THAT WILL FAIL.

Kill yourself you worthless idiot.

Re: FMU + Stock Fuel Pump?
 

I don't see that happening on the stock fuel pump. At 5 psi of boost, you are going to have a rail pressure of over 95psi. The stock fuel pump won't flow enough at that pressure.

Look at it this way, a walbro 190lph will be maxed out with four 240cc injectors at 95psi.


Those kits come with 255lph HPs for a reason. Cause they can max out at 8psi on a 12:1 FMU which is pushing 120+psi of rail pressure.

Re: FMU + Stock Fuel Pump?
 

if you need an fmu i got one

Re: FMU + Stock Fuel Pump?
 

so a walbro 255?

Re: FMU + Stock Fuel Pump?
 

It would be a better place to start than a stock one.

Re: FMU + Stock Fuel Pump?
 

so a wlbro 255, then a decent quality fmu and all i have left to do it the physical work and find someone that can either reflash the ecu or a piggyback that can be retrofitted
and im good?
yes i know there is that thing called a turbo but already know in general what turbo i am running and im thinking about 2inch piping
i know it's small but the tb is so small that i don't believe that 2inch throught would be any worse than 3inch but still having to go throught a tb of about 1.75-2inches
(plus there is not allot of room under the hood so smaller piping means more room)
and i think i am going to run an ebay 32x6x2 intercooler with 2.25inch inlet and outlet

would it be ignorant to think that a decent dyno shoppe could tune the car to run like a chipped turbo civic (not power wise more like reliability wise but i don't want to add the turbo and do all the work and only gain 10-15hp if i was going to do that i would throw on a cold air intake and put in an exhaust cutout before the cat

one thing what ratio fmu would be needed?
and would stock injectors with the walbro 255 be good or should i also see if dsm 450's will work? (i see them on here for like $50 so their cheap but i don't know if they would need modified or not)

Re: FMU + Stock Fuel Pump?
 

You don't seem like you are really ready for this turbo business. You are starting with a pretty tough project also.

Re: FMU + Stock Fuel Pump?
 

i don't know about the stock injectors, but the fmu would be a 12:1 and i have a vortec one for sale.
buy my ----.

Re: FMU + Stock Fuel Pump?
 

if cornfuzed could actually get someone to reflash the stock ECU, you'd be better off dumping in some other stupid big GM injectors (3800SC maybe???)i'm sure they're SOME standard size...
Walbro+bigmofoinjectors+ECU tune=win
but cornfuzed's gay ass wont do it, or will royally ---- it up, please please please please please, if you ---- it up, post up some pics :y

Re: FMU + Stock Fuel Pump?
 

Go look in the black hornet gets old skool durrty boost thread, we ran 7psi out of a t3, it gets a little lean after 5psi. But the 10:1 obx FMU wasn't enough, we ended up just using vice grips on the fuel return.

IMHO FMU's are not worth the money, just grab some vice grips, runs a little rich in vacuum, but way better in boost.

Re: FMU + Stock Fuel Pump?
 

my friends running chrome on a ls motor with 550's
pushing 14psi now on a stock fuel pump
we've went to 16psi...and never went lean

hes been daily driving it for 7months now on 14psi
and not one problem.cept for a lil blowby

tuning is awesome

Re: FMU + Stock Fuel Pump?
 

have you thought about using a megasquirt? you dont have to use the full ability of the ms for standalone. it cam be used for fuel only with great sucess!!.

Re: FMU + Stock Fuel Pump?
 

You're dumb. Kill yourself.

Re: FMU + Stock Fuel Pump?
 

http://www.bantamapparel.com/sku/bus..._mg-2_PI72.jpg

Re: FMU + Stock Fuel Pump?
 

Truth.

Ignition kills most turbo Honda engines, and any 88-95 honda ECu is better than a dinky Megasuirt.

Re: FMU + Stock Fuel Pump?
 

Enjuku avatar? No 240?

Change your avatar to read "i'm gay, i'm boosting an aveo"

Superstreet did it but they used a cobalt motor and added a supercharger. It was still gay with a tripple naws energy drink cup holder and ugly ass konig rims.....

I'd be damned if i boosted an n/a car on a stock pump. If you can't afford $90, buy a xeno pump or check craigslist. Hell, even try going to the junkyard for a pump. You'd be surprized what you can find.

Re: FMU + Stock Fuel Pump?
 

yes oem pumps from turbo 4 cylinder cars work great just picked one up today for a husteled price of 27 O0 at pick and pull still worth it though other jy only charge like 13$ thats how much my first one was

Re: FMU + Stock Fuel Pump?
 

psi is meaningless. how some people can answer its too much or too little without knowing the turbo in question is just as meaningless.
If you're talking anything less than a t4 class turbo, yeah >/= 5 should be fine.
10, 12, 14:1 are BIG pressure ratios. That's why most people running t3 equiv or smaller turbos on FMU's run so ------- rich that they add alot of boost too it thinking they're ok. Then they blow up.

FMU, colder plugs take a couple of * of timing out of it. its aight. did a kid's afew streets down on a 42/48. 8:1 fmu, took 3* of base timing, put in 1 step colder NGK copper plugs, internal wastegate at 8psi. its run like top for a year and a half. hair rich, but not annoyingly so.

Now you wanna say is it okay on like a t3/t4+ class turbo. No probably not without somewhat larger injectors ontop of that.


what are D16Z6 injectors? correct me if im wrong 255cc?
If they're all mint condition (probably NOT).

Call your stock fuel pressure 40psi cause its all old. The stock FPR will rise at a 1:1 manifold ratio until it bottoms out. 12:1ratio x 5psi = 60psi.
255cc injectors @ 40psi run at 100psi = 400cc injectors.
That's about 300-320hp worth of fuel depending on how lean you want it.
Now... First off you're not going to see 100psi of fuel pressure, and if you do you're not going to see a good amount of flow at 100psi of fuel pressure LoL! econdly you're HEAVILY trusting old injectors to supply their rated flow. Maybe one will, two will be kinda close and one wont be remotely close. Just wont matter in a stock N/A engine enough to realize it.

So yeah... WAY TOO MUCH ------- fuel for 5psi on a t3 turbo. For that matter with a manly high pressure pump and MINT injectors 10psi on a t3 class.






FMU's are not an unviable, ---- thing alot of people make them out to be. What MUST be understood is that to really do something you need reliably working injectors and a pump that can supply the pressure possible. You also need to run whatever boost gives you the right ratios. Not too much (blow up) and not too little (runs like ass).

Re: FMU + Stock Fuel Pump?
 

ok

Re: FMU + Stock Fuel Pump?
 

have some dingleberry jam with your ass waffle this morning?

Re: FMU + Stock Fuel Pump?
 

A little sensitive this evening, aren't we? I thing the gay rainbow avatar is beginning to affect your demeanor. :3

Re: FMU + Stock Fuel Pump?
 

everyone honored enough to get a rainbow kept it becuase its a show against the man. ironic twist in that you assume its for the man.

Re: FMU + Stock Fuel Pump?
 

Two (off the top of my head, I didn't keep track so maybe more) of the people who got rainbows did not keep them. Both have made 4+ posts tongiht. Ironic how you forget the ------- obvious, isn't it?

Re: FMU + Stock Fuel Pump?
 

you got me, the majority kept them lol

Re: FMU + Stock Fuel Pump?
 

no dude!!! dont be a cheap bastard lol fmu n 255 pump n injectors will eventually blow up
just do fmu 255 pump n injectors mean while you get enough to get chipped ecu , n a street tune

Re: FMU + Stock Fuel Pump?
 

Are you ------- kidding me?