DAfanatic

alright heres my deal, I have a 90 integra RS and its time for more power. I can get a turbo kit that has everything with all name brand parts, t3/t4 turbonetics, evolution wastegate, etc, but the kit doesnt come with fuel managment. Now I called the guys from turbo-kits.com and asked about the rev hard kit thats is externally wastgated @ 7-8 psi. which comes with the Vortech FMU and pump. They say as long as I dont turn up the boost this set up should be perfectly safe, may run a little rich but thats better than lean in a boost setup. Ive read alot of post up here and other honda sites. Has anyone run this setup, and been problem free. I figure they wouldn't sell it as a bolt-on kit if it wasnt safe. But everything I read people bad mouth FMU set-ups. Theres a guy here in Greenville,NC where I live, had the same kit and ran 10 psi on the FMU, pump and stock injectors on his b18b for 3 yrs no problem. I know there is better fuel management but Im boosting on a budget. The only power I want is what the kit is set to and nothing more. As far as the timing would I have to retard it at all. Just used stock ls(45,000) and 3" exhaust and my kit. All info is appreciated.

97grnrs

on this site u will quickly learn if u run an fmu ppl will hate u . ha .. but personally ive ran an fmu on my stock ls b18a daily driven with max boost of 19 psi .. never blew or anything. not recommended but i did it. i ran 11 psi daily for a while too before i raised it. ran a 12.8 quarter mile with fmu and 11 psi , stock ls

Wonk Unit

nooob question sorry, but if you run with an fmu does that mean you dont' need to do anything to ecu, or get injectors, or a bigger fuel pump??

b18bteg14

im in the same boat as DAfanatic, from what I've heard running 7-8 psi with a 12:1 fmu will keep you safe, but you wont be extracting the same power you could if you ran larger injectors, and used an AFC to detune them while running a smaller FMU disk. Or, even better, not running the fmu at all and going to a better form of engine management.

but im also curious if just running the fmu and a larger fuel pump would be suitable for 8-10 psi

97grnrs

i ran fmu and 255 lph walbro with 11 then 20 psi daily on a 14b turbo. stock ls. no problems

integrawow

I'm not gonna bash anyone, instead, i'm gonna tell you what I think and what I have concluded.

First off, a new FMU runs around $200. On the other hand, Uberdata, Crome, or BRE are free downloads. They will require some programming (I can't stand the word "tune(ing)") LOL LOL LOL. In the end, you'll feel better about your setup. The cost of the fmu doesn't include having to buy replacement parts for when it either fails or needs fixing.

Yes, SOME people get away with fmu's, but you should try to make your **** better than theirs. I figured that it would be cheaper to go the engine management route, and more expensive to go the fmu route.

It's your call. Then again, with LOW (6-7 psi) boost levels, you shouldn't have toooooo many troubles with an fmu. But anything above that, just go with an engine management.

I hope this helps!

fmfkid250

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integrawow &raquo;</TD></TR><TR><TD CLASS="quote">I'm not gonna bash anyone, instead, i'm gonna tell you what I think and what I have concluded.

First off, a new FMU runs around $200. On the other hand, Uberdata, Crome, or BRE are free downloads. They will require some programming (I can't stand the word "tune(ing)") LOL LOL LOL. In the end, you'll feel better about your setup. The cost of the fmu doesn't include having to buy replacement parts for when it either fails or needs fixing.

Yes, SOME people get away with fmu's, but you should try to make your **** better than theirs. I figured that it would be cheaper to go the engine management route, and more expensive to go the fmu route.

It's your call. Then again, with LOW (6-7 psi) boost levels, you shouldn't have toooooo many troubles with an fmu. But anything above that, just go with an engine management.

I hope this helps!</TD></TR></TABLE>

well put! to be honest, at that kind of boost levels with a basemap would be perfect, no adjusting needed!

check out pgmfi.org
and moates.net
also recomend getting a fuel pump, like 100 bucks to be safe.
ontop of that find a set of never ls cams, it will make a world of differnce, esp under boost (talking from experance!)
you will need to use turbo edit
either that or convert to obd1.
good luck

b18bteg14

wouldnt an fmu dump too much fuel in at low rpm

CustomX113

fmu only dumps more fuel in under boost

b18bteg14

yea but if the turbo spools at 2500 rpm...it would dump the same amount of fuel in at that rpm as it would at redline. that doesnt seem very efficient

CustomX113

thats why its better so much better to get it tuned....

093turbo16

iTrader: (2)

This is pretty much the 2nd one of these threads in this forum right now. If you run an FMU, you also need a map bypass and a BTM.. to control timing. Which ultimately costs way more than just getting a chipped ecu in the first place. Then call up a local tuner, then you KNOW you are safe.

Why try to hack your way around it, everyone doesn't recommend getting your ecu chipped and then getting tuned because it sucks.

People DO bash FMUs and MAP bypasses, because they are not the optimal way of doing much of anything, when tuning a boosted honda.

Trust me, I have dealt with all of the above situations.

b18bteg14

ok assuming one DIDNT want to tune with the ecu (yes bash away), how would the safc hack work. when running max boost of 8 psi would you use an fmu AND the afc and map bypass...or just the afc and map bypass

CustomX113

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18bteg14 &raquo;</TD></TR><TR><TD CLASS="quote">ok assuming one DIDNT want to tune with the ecu (yes bash away), how would the safc hack work. when running max boost of 8 psi would you use an fmu AND the afc and map bypass...or just the afc and map bypass</TD></TR></TABLE>

it will eventually damage the motor, my friend had a stock ls, stock injectors with a walbro 255 with a safc hack with a fmu and missing link, his held up for about 3 years before melting a piston, he would run about 8 on the street and about 10 at the track

im suprised it held up as long as it did

s2kdre

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95dxb18c1 &raquo;</TD></TR><TR><TD CLASS="quote">

it will eventually damage the motor, my friend had a stock ls, stock injectors with a walbro 255 with a safc hack with a fmu and missing link, his held up for about 3 years before melting a piston, he would run about 8 on the street and about 10 at the track

im suprised it held up as long as it did</TD></TR></TABLE> u dont melt a piston out of nowhere! boosting for a long time in high gear will melt a piston.

b18bteg14

you wouldnt run an fmu with an afc would you?

093turbo16

iTrader: (2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18bteg14 &raquo;</TD></TR><TR><TD CLASS="quote">ok assuming one DIDNT want to tune with the ecu (yes bash away), how would the safc hack work. when running max boost of 8 psi would you use an fmu AND the afc and map bypass...or just the afc and map bypass</TD></TR></TABLE>

If you really need to know, PM me. We are from the same town.

CustomX113

i didnt say out of no where, over the 3 yr time period he finally lost compression in the number 1 cylinder