FMU question
 

what is so bad about an fmu? do you need bigger injectors if you run an FMU? would it be better if you ran bigger injectors with an FMU. what all do you need for an FMU setup? just the FMU? thanks dont flame. just give me links if u are going to flame. do you have any sites where they do show pictures of the instalation and neccessities for the instalation? also would it be better to get a 255/190lph fuel pump for the fmu? or can i just use my stock one? thanks

Re:FMU question
 

I don't like them because they raise the fuel pressure to ridiculous levels which is not good for injectors.

Re:FMU question
 

High fuel pressure in an older car is just asking for trouble.

Also...tunability is slim to none.

IMO, better than the hack though at 5psi or under.

Dont use larger injectors and the FMU.

Did you read teh FAQ? I believe their is info their about FMUs

Re:FMU question
 

ya there is a section but it doesnt say ---- about them. that is why i am posting. check out this guys setup...
Precision Pro T03/T04 Turbo
TurboSmart Wastegate 35mm (5psi)
SRP Manual Boost Controller
Inline Pro TO4 Turbo Manifold
Precision Pro Intercooler
Greddy Type-S Blow Off Valve
Vortech Fuel Management Unit
Walboro 255lph In-Tank Fuel Pump
Aluminum Piping
Turbo Blox Missing Link
Custom Racing Downpipe
Custom Straight Pipe
Ractive Muffler
OBX Breather Filter
K&N Intake Filter
NGK Spark Plugs- Iridium
10W30 Mobile One Synthetic Oil
Stock B18B (LS) Internals

he is doing 13.3 in the 1/4mile.
he posts himself doing 13.7 on street tires

That is what i want to do. but i want 10psi going through my car. my buddy said that most factory turbocharged cars are equipped with an FMU.

Why shouldn't I use bigger injectors with the FMU??? I will have the 10ohm resistor pack on it too.

Re:FMU question
 

first off, your buddies givin you some wrong info ::)

and secondly an FMU is used best with stock injectors because of the rate it flows, if you put a different sized injectors in, your causing the FMU to not work as it should by giving a different amount of pressure than what it should

Re:FMU question
 

If you want to run 13.3 in the 1/4, you need Uberdata/TurboEdit.

You arent going to get there on the FMU and the Hack is just dangerous IMO

Re:FMU question
 

i dont have that kind of money for tuning

Re:FMU question
 

im in the same boat, except i only wanna run 5 psi..

knowing how bad H series blocks are, do you think my lands will hold up to 5 psi with an FMU?

Re:FMU question
 

Then don't turbocharge your car yet. Don't you understand the importance of tuning? FMU does not equal tuning. I would wait till you have the money and do it right, unless you think doing it half ass and blowing a motor is cheaper. I think one engine is cheaper than 2. An FMU can work, but I strongly recommend some engine management. ;) good luck

Re:FMU question
 

what about in my case where there are no options for tuning besides hondata(if that), damn h23...

Re:FMU question
 

what about in my case where there are no options for tuning besides hondata(if that), damn h23...
:( Sorry dude, but I don't really know enough to respond in your case. At least your motor has some torque in stock trim. Oh, and your car looks nice.

Re:FMU question
 

yea seems there isn't much on the h23 after browsing on pgmfi and uberdata forums... one guy might have made a base map but we will see.. thanks!

Re:FMU question
 

I don't see why you couldn't go to the dyno and make a base map up. You have to use uberdata right? Well I would think that you could just socket your ecu like regular and then be the first to make a prelude base map. Why not. Check to see if the ecus are the same as far as chipability if thats a word

Re:FMU question
 

You have options...plenty. Check your other thread.

Re:FMU question
 

i give up. yes, fmu is your best choice.

Re:FMU question
 

haha,

yea, no dyno near me and that costs MORE money lol.. i might go with it anyways since i can datalog...

Re:FMU question
 

underdata - $120
dyno - $250

= $370 = ass load of money - great performance

fmu - $40 brand new

= get me running and go pretty quick

what would you rather go with???

Re:FMU question
 

why do you need a dyno right away, i said a basemap will run BETTER and SAFER than an fmu. you already have a pr4 ecu, so uber will cost you 70 bucks, that's it. show me a link for a brand new fmu for 40 bucks. would you rather run 6 psi unsafely or 10-12 psi safely with launch control, shift light, ign. retard, etc. if you get an fmu, you're gonna have to retard your distributor and your bottom end will pull like ass. i've already told you the basics of what you need, you keep adding in all these expenses making it out to be pricey, it's not. i never tuned my car, meaning, no money for dyno, and ran 15 psi. just get an fmu and blow your engine up on 5 psi, then tell us which cost more ;)

Re:FMU question
 

I am going uberdata now!! i get the idea lol..

so i can put a base map from a turbo h22(im sure there are some posted here) on a chipped p06 ecu? would the timing be alright?(i know it varies from b series and the h23, dunno about the h22), im pretty sure it would be fine..

datalogging... i can get that enabled/installed when i get my ecu socketed right?

then i just need the prog and a laptop!

Maybe there will be a kind soul on this board that would burn me a few chips instead of me having to buy a chip burner..?

I wanna do things the right way so NO fmu! (new fmu would be like $75 on ebay, then missing link is like $40), so this might even be as cheap!

Re:FMU question
 

Dude, I talked to you on PM's back and forth for an hour or more. I told you the same thing that kevin already told you, or told you after I did. I think that you need to re-think your plan.

Do you already have all your parts bought for the set-up?? If so, go sell something and buy a less expensive version and use that money for uberdata.

Re:FMU question
 

..or you could datalog with uberdata and tune off of that... that would be far better than any FMU i would think.. i have been researching uberdata and i love it! I think i already found a basemap to start out with.. its for a turbo f22a7 but that should be OK for me to tune off of.. or we shall see...

Re:FMU question
 

i think you'd be better off with the h22a maps just disable vtec, there are big differences in timing between single cam and dual cam, so the dual cam map, even though it's for vtec, will resemble your timing maps a lot better.

Re:FMU question
 

i honestly think this asshat should be banned from homemadeturbo....


he says he read the FAQ's and said it said NOTHING ABOUT FMU's??? there's a ------ huge ass section about the ---- fmu saying YOU NEED A MISSING LINK OR CHECK VALVES FOUND AT FISH MARKETS..... YOU USE STOCK INJECTORS AND STOCK EVERYTHING BUT DONT BOOST MORE THEN 6psi... u ask so many ------ dumbass questions then try to compare so many dumbass things to us thinkin were gonna comprimise.... if u ask us for our opinion then we tell u whats right and wrong then shut the ---- up already. what else do you need to say or ask when you kno eveyrhing. you made a ------ thread about everything possible i swear and you still act like you don't kno ----. if u wanna run 13.5 with ur stock ---- and an fmu then make it happen. show us vids and timeslips... then i'll shut up and kiss ur toes... but it'll never ------ happen. kev was running around 13-15psi on his turbo'd b16... UBERDATA and launch control shift light all the goodies. mad wheel hop and a complete stock motor and pulled a 13.7? somewhere around there... good job kev. i haven't timed my car on the quarter yet but 10psi on uberdata on a stock LS at the 1/8th mile i pull flat 9's and high 8's. not bad considering i take jdm turboII rx7s s2k's and all the turbo neon's that run... all trucks, lsvtec hatbacks. h22 coupes.


TURBO YOUR ---- RIGHT and quit askin asshat questions. you can buy a ecu ALREADY CHIPPED from kev for what was it? 90bux? 40 bux brand new for an fmu is impossible. even on ebay its like 100. from the vortech website its like 150 and at any ricer shop its like 180... we told you everything about every product and possible dumb ass question you could possibly ask, i wish i was a mod..... i have ichyness for the ban button :-[

Re:FMU question
 

i got the FMU from a buddy for $35. I dont understand though. If i can't run my car everyday on a basemap until i get it tuned by a dyno, what good is it? I don't know how to tune it myself/dont have a laptop/dont remember the cord number from the nokia phone that i have to use to plug into the laptop/i dont have money for the dyno. trust me, i want to go with uberdata. but 1. i dont know how to tune 2. i dont have the money.

if i could get a new ecu chipped with an uberdata map that i could safely run on my car(95 OBDI integra LS 'b18b') for $100
shipped to my house - I would do it. And i would sell my ecu.

i dont mean to be a hassle. I just dont know how to tune and dont know where to learn to tune.

Re:FMU question
 

why can't you drive daily on a basemap? that's what its for? racing hard at the track lookin for good numbers is what tuning is needed for. basemap is what i have? running a little rich under boost but isn't that safer then lean all the time with an fmu? chipped with a basemap for a 100 is what kev was askin wasn't it? you needa do more research before you start talkin bout money this and money that. a blown motor is gonna be more expensive then a good setup. your gonna regret usin that fmu in the long run but u might think its okay with ur low boost settings. but to be fast and get some good times your gonna need uberdata... u can always go with hondata or aem... cost 10x more then uberdata and hondata can only be tuned at aebs and aem can be tuned but takes high skill. more skill then uberdata tuners. try tuning by EVERY 25 of an rmp... not 2500, not 250 but every 25... hah. uberdata has everything needed for such a fraction of the cost. it cost less then the fmu, less then the afc, less then hondata, less then aem, less then fields vtec controler, cheapest most reliable engine management available to any honda owner..... no other questions needed sucka...

Re:FMU question
 

ok ok ok i am going with uberdata....but if i run just the basemap...could i flore it sometimes(only going to run max 10psi) and not have to worry? or just because it is a basemap that means it will just get me around and i cant really race it?

Re:FMU question
 

i race mine on a basemap. it prolly pinches lean in a few areas but i raced it every weekend and all week long whenever i got hit up. im running 10psi also. you'll be fine but it'll pull so much harder if u got it tuned. kev was never really super tuned and he touched the 13's...

Re:FMU question
 

ok thanks....thanks for putting up with my ----

Re:FMU question
 

you got lucky...i would never race with out making sure with a WB what my AFRs are...just not worth it IMO

Re:FMU question
 

see what i mean....tune and don't worry about tuning(you'll be fine)...i dont know which one to believe

Re:FMU question
 

either way, an uber base map would still be better than an FMU. touch lean in a few places, or run lean the whole time.

think about it. everyone has told you what you need to know, someone needs to lock this bitch up.

Re:FMU question
 

hey hey

i am new here and came for some help in my setup

BTW i am in Australia :P


at the momenti am stuck as to what to do with engine management, i cannot afford a full management here its about $1.5kUS installed

i was considering fuel management only with following:

larger injectors
larger fuel pump
fuel management


but my 3rd option (one i need just to get the ar from a to b for now)

just run a fuel pressure regulator,

there are 2 types non rising, and rising, would non rising be safer for running 6psi on stock ecu?? or just go rising?


also i have a mazda B6 engine FWD version!

thanks

eddie

Re:FMU question
 

Since when does an FMU run lean? In most cases they run pig rich...its the high fuel pressures that are dangerous to run.

There is no reason to lock this thread.

Re:FMU question
 

that is what i thought...why is it dangerous to have high fuel
pressures? what if you have a bigger fuel pump - i have a 255lph walrbo.

Re:FMU question
 

because your fuel system was designed to operate in the 30-50 psi range (give or take)

Re:FMU question
 

and what would i be running with an FMU....so instead of rising the fuel pressures - why dont i add bigger injectors and downtune the fmu

Re:FMU question
 

nevermind - u cant tune an fmu

Re:FMU question
 

i love it when people answer their own questions ;)

Re:FMU question
 

i never had my first map tuned at all and with stock exhaust, stock cat, stock clutch, on 11psi, i put down 240whp, just barely going a little lean from 5-7k


as long as you have boost fuel eff. set high enough to where you already know it will give the engine enough fuel under boost, you're fine. vacuum maps almost always run rich on basemaps anyways so no worries there anyways. i don't think wb tuning is neccessary to run safe, to run effiecient yes, but not just to run safe. i ran my car on a basemap for 7 mos. raced at the track and beat the ---- out of it, finally got it on a dyno and my afr's were a little lean in the 5-7k range (low 13's), but nothing serious at all, and that was with boost fuel eff. set pretty low.



i honestly have total trust in a good basemap, the only real problem to me with a basemap is how they run in vacuum with no tuning.