fmu

[cxjon]

flame away.... if someone wants a dd lets say my mini van with a little boost would a fmu and bigger injectors maybe bigger fuel pump would that get him by fine. ?

[98baselude]

ya but why would someone want to dd a van..... haha jk man. I want to see this happen!

[Stealthmode]

I think I'd rather afc hack that mug.

[hatchzc]

Cant you h22 swap those things?

[SPANISH-RICE]

flame away.... if someone wants a dd lets say my mini van with a little boost would a fmu and bigger injectors maybe bigger fuel pump would that get him by fine. ?

fmu and walboro 255 fuel pump, no bigger injectors. fmu isnt designed to work with bigger injectors. but im with stealthmode on this, bigger injectors and afc is better if your really hell bent on not getting a chipped ecu. obvious best choice is chipped ecu (which would probably cost about the same if not less)

[AlexD]

are there even chipped ECU's for his application?

[pat lehmann]

if it is like any of the other honda ecu's you should be able to chip it. since it is a 96 maybe do an obd2-obd1 conversion on it, chip the ecu and tune it with crome or something. looks like a nonvtec engine in the pic in your signature jon?
just chip a P06 and have at it

[Tou]

you should check if it shares the honda ECU Jon..if it does then you know what to do..if not..SAFC ftw..lol

[SPANISH-RICE]

what engine does it have ? dual point or mpfi? and what ecu is it? i would think if its a d series engine its always going to use one of the normal ecus and could be switched to obd1. but honestly i dont know in this one.

[shonda1989]

FMU will be fine your not getting much boost anyways.

i may have one if you want it its yours for 50$

[cxjon]

someone said that in order to have a ecu like a chipped p28 i need a obd 2 to obd 1 harness and then wire the chipped ecu and anther because it auto i dont remember

[Stealthmode]

If it's similar to the civic obd1 conversion, just do that. I don't play with minivans, and I don't have kids that need to go to soccer.........haha.

[da_dude]

If it's an automatic then some engine management won't work with it. A upgrade fuel pump, fmu, low boost and you should be fine.

[shonda1989]

FMU's were used for a very long time and work very well for a simple machine. for any engine i would say if your running les then tops 6 PSI you can almost completly just get away with the FMU especially with a lower then 10:1 compression ratio. i believ your engine is 9:1? which will do great with an FMU and the stock tune just remember you also need a missing link to hide the boost from the ECU.

[Stealthmode]

fmu's have exactly no fine tuning ability. Here in the real world we have a 10 psi quota, and if you don't hit that, you should not do it to begin with/use an fmu/end yourself.

If you're talking about the clutch neutral switch that fools your system into starting the car, similar to the civics etc. than you should do yourself a favor and disregard that fmu BS.

[shonda1989]

^and thats why whenever my project is finished i will be boosting 25PSI

1000HP J35a6 i think that will be enough:borat: and no i will not be using a FMU:palm:

[kinetics]

A lot of engine mgt systems that are daughter boards or stand alones don't work on MT's.
S300 is an example.

FMU should be fine, I'd think. Just don't expect a really fine tune, or insane power.

[SPANISH-RICE]

fmu's have exactly no fine tuning ability. Here in the real world we have a 10 psi quota, and if you don't hit that, you should not do it to begin with/use an fmu/end yourself.

If you're talking about the clutch neutral switch that fools your system into starting the car, similar to the civics etc. Than you should do yourself a favor and disregard that fmu bs.

exactly this^

dont listen to these people about it being "just fine" or "should be ok". Fmus blow motors and offer no fine tuning at all. Assuming you know how fmus work, you do kow that even at 10 psi(NOTHING LESS IS ACCEPTABLE) your fuel pumps gonna be churning out 160psi fuel pressure? Sounds reliable huh?

Its pointless to waste time/money on a turbo setup if you cant step up to make sure its running/tuned correctly.

You wont gain power but will gain unreliability. What ecu is in your car right now? If its a common ecu i dont see why it cant have a chipped replacement

[bluebomber]

flame away.... if someone wants a dd lets say my mini van with a little boost would a fmu and bigger injectors maybe bigger fuel pump would that get him by fine. ?


As stealth and others have already said, an FMU is a terrible way to try and add fuel. Just to entertain the idea of adding larger injectors on top of it, you would have to turn down the fuel pressure for the damn thing to idle right and have any sort of driveability. You also failed to address ignition timing adjustments. Do it once, do it right, and run a chipped ECU.


Oh, and 10lbs = turn you out.

[Stealthmode]

Just to entertain the idea of adding larger injectors on top of it, you would have to turn down the fuel pressure for the damn thing to idle right and have any sort of driveability. You also failed to address ignition timing adjustments.


That would be where the afc hack comes in. Larger injectors with the afc shortening the pulse, with the msd boost timing master on the timing tip. You would have now accomplished 2003 status, and 10psi to get a riceboy killed, so you're good.

[SPANISH-RICE]

I didnt even think they sold afc's anymore. I havent seen one in ages.

[del_sol]

Actually an fmu will works very well. I rather use an fmu and band aids then an afc and larger injectors. Afc adjust fuel according to rpm, so whether you’re at full throttle or not you’re getting the same amount of fuel. Fmu on the other hand increase fuel base on boost. No boost equals no added fuel. Just get use an fmu and some sort of ignition retard device via boost/vac. Atleast thats how I remember when I started boosting with bandaids 5 years ago lol

[Bryce]

Actually an fmu will works very well. I rather use an fmu and band aids then an afc and larger injectors. Afc adjust fuel according to rpm, so whether you’re at full throttle or not you’re getting the same amount of fuel. Fmu on the other hand increase fuel base on boost. No boost equals no added fuel. Just get use an fmu and some sort of ignition retard device via boost/vac. Atleast thats how I remember when I started boosting with bandaids 5 years ago lol

Welcome to 2009.

I have not seen a FMU in a engine bay in years!

[shonda1989]

^^you havent seen many sand cars have you???

[Timmypone]

I have a vafc 2 I'll let you have cheap and I know it works cause its still in my car

[pat lehmann]

remember your jdm d15B jon? that engine would have lived a long life if it would have been tuned for the setup. at the time we thought the magical greddy blue box would take care of it.

the obd2-obd1 conversion stuff is easy. and i think member djtydus had his auto integra tuned with crome??
chipping the ecu is also easy and the parts are cheap. like <$20 cheap

[Chase]

Not sure if this will help you but I ran a FMU on my supercharged civic for 3 years with no problem. Only thing done to the fuel system was FMU and 250 Walbro fuel pump. Also had a FPR with a gauge on it. It is quite old school but you should be fine as long as you dont go over 8 psi. Worked for the civic.

[Bryce]

^^you havent seen many sand cars have you???

I look at sand cars about as often as a person in Arizona looks at ice racing cars.

[SPANISH-RICE]

actually an fmu will works very well. I rather use an fmu and band aids then an afc and larger injectors. Afc adjust fuel according to rpm, so whether you’re at full throttle or not you’re getting the same amount of fuel. Fmu on the other hand increase fuel base on boost. No boost equals no added fuel. Just get use an fmu and some sort of ignition retard device via boost/vac. Atleast thats how i remember when i started boosting with bandaids 5 years ago lol

and an fmu can tell the difference between 5psi half throttle, and 5psi wot? Why would you ever recommend to someone to run something as inaccurate and dangerous as an fmu for a turboed car running n/a maps? Both afc and fmu are going to have completely fucked ingnition maps. If youre going to spend the money on a msd btm why the hell wouldnt you spend less and just chip the ecu with dsm 450s?

This might go over your head here but just try and keep up and compare costs for me

fmu, btm, walboro fuel pump= ? Zero tuning just high fuel psi in boost and hope for the best
afc, 450s, btm, walboro = ? Maybe 8 columns rpm based tuning in boost?
Walboro, chipped ecu, dsm 450s=? fuel/timing lowcam/highcam press./load tuning with 100s of options.

You are recommending to someone to spend more money on an over complex way to make his car less reliable. Just because it makes sense in your head doesnt mean you should spread your bullshit to others.

[cxjon]

its not as easy to buy a obd1 ecu and a obd jumper and throw it in..... i will have problems with my tcu and shit... thats what all the people on the ody forums say

[SPANISH-RICE]

o gay traction control. you wanna do boosted burn outs anyway

[Sikocivic]

How many of you guys that are bashing FMUs have ever had one in your car. I ran them for years with no problems. You just have to keep the boost down and it will work.

[del_sol]

and an fmu can tell the difference between 5psi half throttle, and 5psi wot? Why would you ever recommend to someone to run something as inaccurate and dangerous as an fmu for a turboed car running n/a maps? Both afc and fmu are going to have completely fucked ingnition maps. If youre going to spend the money on a msd btm why the hell wouldnt you spend less and just chip the ecu with dsm 450s?

This might go over your head here but just try and keep up and compare costs for me

fmu, btm, walboro fuel pump= ? Zero tuning just high fuel psi in boost and hope for the best
afc, 450s, btm, walboro = ? Maybe 8 columns rpm based tuning in boost?
Walboro, chipped ecu, dsm 450s=? fuel/timing lowcam/highcam press./load tuning with 100s of options.

You are recommending to someone to spend more money on an over complex way to make his car less reliable. Just because it makes sense in your head doesnt mean you should spread your bullshit to others.

Are you speaking from experience or from "what you heard." The op said he's running an auto van where it's probably not able to run a chipped ecu, that is he is asking if an fmu is safe to run. I personally ran an fmu when I started boostin 5 years ago. I ran it with no upgraded fuel pump and retard the distributor a few degrees, it never gave me any problems. Since then I used and afc, which sucks, chipped ecu hondata etc.

[bluebomber]

How many of you guys that are bashing FMUs have ever had one in your car.

Then again, I've seen an mpfi D15B2 with a T03 60 trim welded to the manifold and the wastegate jb welded shut hitting 25 psi spikes with absolutely no management last for a surprisingly long time. Moral of the story, we're trying to recommend top of the line solutions to JB because we don't want him breaking down. Have a cookie :monster:

[Sikocivic]

flame away.... if someone wants a dd lets say my mini van with a little boost would a fmu and bigger injectors maybe bigger fuel pump would that get him by fine. ?
I don't think he was asking for "top of the line" solutions. He sounds like he just wants a little more power from an underpowered van. I don't think he is trying to make maximum power.

I speak from experience on FMUs. I have used them,have you????

[cxjon]

^^^^ bingo

[Mike02cky]

I currently have a turbo LS and run 5-7psi with missing link and an fmu and it wokrs great. Still on stock injectors and stock fuel pump. No problems what so ever. Any more boost and I would get it tuned. But for a daily driver on the cheap its safe.

[AlexD]

cheap and safe dont go together.

if you really want safe get that bitch tuned.

[SPANISH-RICE]

I don't think he was asking for "top of the line" solutions. He sounds like he just wants a little more power from an underpowered van. I don't think he is trying to make maximum power.

I speak from experience on FMUs. I have used them,have you????

on my personal vehicles i have not used them, i know better. anyone who understands how cars work would understand that they do not sound like a safe option. but i have seen numerous people that i could not talk out of them blow up their motors and fry their fuel pumps using them. don't talk high and mighty about your amazing tuning abilities just because you've "experienced" a "boosted" car running 5 psi with an fmu and not blow up. ive been boosting/ building motors for 7 years and i work with them EVERYDAY. im not informing him of a top of the line option, I'm giving him responsible advice because i don't want to see a member damage his vehicle. 5psi untuned would add cock for more power, where as with a chipped ecu he could be running 10-13psi safely and actually make some power. this is past the point of just his vehicle specifically now, i dont want another random person to come across your banter and assume an FMU is an acceptable form of tuning.

tell me sir, you seem to have infinite knowledge of all forms of fuel tuning why is it that you don't run an FMU on your vehicle anymore? please don't tell me that because with your years of being a tuning guru YOU'VE COME ACROSS MUCH BETTER OPTIONS? because that would just be contradictory to the point your trying to make.

[Sikocivic]

tell me sir, you seem to have infinite knowledge of all forms of fuel tuning why is it that you don't run an FMU on your vehicle anymore? please don't tell me that because with your years of being a tuning guru YOU'VE COME ACROSS MUCH BETTER OPTIONS? because that would just be contradictory to the point your trying to make.

I never said that I" have infinite knowledge of all forms of fuel tuning ". I never said that the FMU was better than other forms of tuning. The OPs question was " if someone wants a dd lets say my mini van with a little boost would a fmu and bigger injectors maybe bigger fuel pump would that get him by fine. ?" I gave him my opinion based on my own real world experience. You have stated yours. I guess its up to him to take all the info he can get and make up his own mind.

[pat lehmann]

its not as easy to buy a obd1 ecu and a obd jumper and throw it in..... i will have problems with my tcu and shit... thats what all the people on the ody forums say

what are the main problems they are claiming? do the people on the odyssey forums know what they are talking about?

[joexiong]

i smell beef in here...i'll just leave quietly.

[SPANISH-RICE]

I never said that I" have infinite knowledge of all forms of fuel tuning ". I never said that the FMU was better than other forms of tuning. The OPs question was " if someone wants a dd lets say my mini van with a little boost would a fmu and bigger injectors maybe bigger fuel pump would that get him by fine. ?" I gave him my opinion based on my own real world experience. You have stated yours. I guess its up to him to take all the info he can get and make up his own mind.

trust me i know you are no guru. so you are going to ignore the hundreds of people who have blown up motors running FMUs for tuning just because YOU PERSONALLY have not blown one up your self? lol thats like telling someone unprotected sex with hookers wont give you HIV. just becuase YOU dont have it... yet

[Sikocivic]

Well I didn't think it would happen this soon but I see this place has turned into another Honda-tech.

I bow down to the all knowing Spanish-Rice.:down:

[picturethis]

I currently have a turbo LS and run 5-7psi with missing link and an fmu and it wokrs great. Still on stock injectors and stock fuel pump. No problems what so ever. Any more boost and I would get it tuned. But for a daily driver on the cheap its safe.

Good thing LS motors are dirt cheap, because that's the road you're headed down.

[Joseph Davis]

exactly this^

dont listen to these people about it being "just fine" or "should be ok". Fmus blow motors and offer no fine tuning at all. Assuming you know how fmus work, you do kow that even at 10 psi(NOTHING LESS IS ACCEPTABLE) your fuel pumps gonna be churning out 160psi fuel pressure? Sounds reliable huh?

I disagree entirely. While I dislike FMUs as they are very crude you can calculate your desired AFR @ target boost pressure if you know how an FMU works.

Here is a HT thread on this subject where I demonstrate how I am right, and everyone else is abyssmally stupid. http://www.honda-tech.com/showthread.php?t=2692407

[lurch]

i smell beef in here...i'll just leave quietly.

^ x2

[AlexD]

Was there really any point to your post regarding a comment made a month ago?

[cxjon]

I need me some sick fuel management that cheap

[SPANISH-RICE]

Megasquirt

[cxjon]

no too much wokr for someone who is color blind

[Nengchang]

I would just do a 80 shot and man that would be fast.

[Vtecstyle]

Jon ball i got my ls running u seen that with 50$ in 450cc injectors, 4 10watt 10 ohm resistor. my p06 ecu with chip for 50$ and im running a walbro i got for 50$. and im buying a chip burner. that is what id do. jumper harness. p06 ecu. 450 cc injectors bigger pump and bam ur good on fuel