I was thinking about downgrading my setup a bit, and converting from EMS to an FMU. I have been having some serious problems with tuning, and I want to do something more simple. Just wondeirng, with lets say 550ccs, and and FMU, how many pounds can i run and still have the FMU be efficient?

Any help will be appreciated


Modified by JDMHatch4Me at 2:42 PM 10/26/2004

 

With an FMU there is no safety.... with 550's you need to control them or else ur car will not idle, it will run wayy too rich. FMU's just push more fuel pressure in and max out ur exisiting injectors. Just try to figure out the AEM ems, or sell it and go Uberdata

 

440cc and FMU 12:1 or 10:1 works great if pusing 10-15psi. use a chiped p28 ecu with a good turbo chip of course(not all motor..durh) and a VAFC2...oh and strap it on a dyno with wideband O2.....tune the heck out of it...

it'll work... and idle good.. just need to get the right people to help you tune it..awesome setup..

AEM would be best bet, but whatever works right!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicholashang87 &raquo;</TD></TR><TR><TD CLASS="quote">440cc and FMU 12:1 or 10:1 works great if pusing 10-15psi. use a chiped p28 ecu with a good turbo chip of course(not all motor..durh) and a VAFC2...oh and strap it on a dyno with wideband O2.....tune the heck out of it...

it'll work... and idle good.. just need to get the right people to help you tune it..awesome setup..

AEM would be best bet, but whatever works right!!!! </TD></TR></TABLE>

Wtf?!
With chipped ECU, you DON'T NEED FMU, actually it'll just screw things up!
440cc injectors are good for 250whp

 

I think 440s are good for a little more than 250 hp.

 

i know someone making 523whp on 550's. I think 440's are definetly good for more than 250whp.

 

What problems are you having with you AEM EMS?

 

550 and an FMU will hardly even start. may as well take a gas can and pour fuel right down the spark plug holes

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicholashang87 &raquo;</TD></TR><TR><TD CLASS="quote">440cc and FMU 12:1 or 10:1 works great if pusing 10-15psi. </TD></TR></TABLE>

what the **** ever! fmu's are good up until about 7psi then anything over that and your pushing your luck.

 

i know of ppl who'v run 10psi boost on sohc and over 200whp with just fmu and injectors..

of course same person has been through a few engines too..

so if you're down to use engines like batterys, then sure go for it

 

I dont give a **** what anyone says. I know someone who made 522 whp on 550's and a cartech FMU. Don't knock it if your haven't tried it. I have AEM right now, and it isnt everything that it is made out to be.

 

Hondata will make your life complete....

 

I feel ya on that , tuning a turbo motor can be a pain but an FMU can do nothing for timing and that is something that needs to be tuned also . You can run a FMU for over 500 whp this is true but I think you will be better off trying to figure the EMS out . Use if a VAFC is not very good with a turbo since its just a map modifier and will change timing maps also , if you cant get it figured then like was said before try crome or uberdata , these are well free but donations to the learning cause are appreciated .

 

How safe would an FMU be for like 7psi for a smaller turbo?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMHatch4Me &raquo;</TD></TR><TR><TD CLASS="quote">I dont give a **** what anyone says. I know someone who made 522 whp on 550's and a cartech FMU. Don't knock it if your haven't tried it. I have AEM right now, and it isnt everything that it is made out to be.

</TD></TR></TABLE>

If you seriously can't get a car running with the AEM you need to go pay somebody to set your car up right, going to an FMU isn't going to solve ****.

 

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

what the **** ever! fmu's are good up until about 7psi then anything over that and your pushing your luck.</TD></TR></TABLE>


&lt;----- 2 years .9 bar daily and 1.1bar at the track with a FMU, afc, 450's, missing link, 255lph fuel pump, inline pro head gaske and block gaurd. stock 92k mile ITR internals and daily driven for 8 months out of the year. no timing controls nothing.....people can hate but it works period. infact stan from inline pro did a few 10 second passes on this fuel setup. talk to jinxproof or turbologist about how the system works they helped me a lot

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMHatch4Me &raquo;</TD></TR><TR><TD CLASS="quote">I dont give a **** what anyone says. I know someone who made 522 whp on 550's and a cartech FMU. Don't knock it if your haven't tried it. I have AEM right now, and it isnt everything that it is made out to be.

</TD></TR></TABLE>

I have tried using an fmu before and now I have the AEM EMS.. And I think that it is everything it is made out to be.. Hondata is the one that isnt all its cracked up to be..

 

im not saying its not possible, im saying that your pushing your luck with it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92SleepyHB &raquo;</TD></TR><TR><TD CLASS="quote">Hondata will make your life complete....</TD></TR></TABLE>
what are you talking about? He already has aem which is way better than hondata...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">
what are you talking about? He already has aem which is way better than hondata...</TD></TR></TABLE>

Amen.

I have seen how AEM EMS works and it just just so ******* awesome. Theres so much tuning capability.