gearhead313

Has anyone used an FMU on a turbo setup and dyno'd it? I know I know there inconsitant and can pop the motor, but I just wondered if anyone has had expericence. I'm looking to build a light street boost setup and have an FMU laying around.

rainmanEK

Plenety of cars have used FMU's with good results at lower boost levels. My fathers miata has been running on a FMU for over 3 years now!

Eric

gearhead313

thats excellent man. is he running upgraded injectors or an adjustable fuel pressure regulator?

I know there are people out there, i was just hoping they dyno'd and had the sheet to post!!!

spooledex

dont' have the sheet. But I put down 310@8600 on 8psi with an FMU. Stock LS bottom end with B16a Head and to4 turbo setup. ran very lean up top though. Like 13.7.

TorganFM.

FMU + BTM works. Consider getting something like a BTM to retard timing.

hotimportcrx

dammm 8600 on stock ls rods....did it break from revving?

gearhead313

wow ya, thats revin an LS for sure! I learned my lesson hard on that.


BTM is a good idea. I'd assume if its leaning out, the BTM can save your ***...

gearhead313

no dyno's huh?

BoostR41

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gearhead313 &raquo;</TD></TR><TR><TD CLASS="quote">wow ya, thats revin an LS for sure! I learned my lesson hard on that.


BTM is a good idea. I'd assume if its leaning out, the BTM can save your ***...</TD></TR></TABLE>

Jay I am sure you know my car ran that FMU set up for a few years with my stock block and never had an issue. I ran a cartech FMU that you could set the ratio externally, 450cc injectors, and afc. just was real careful not to pull to much fuel to mess with the timing on the AFC.

It always ran pig rich but it was safe

gearhead313

Ah, i never did know you ran an FMU setup. I'm guessing you never dyno'd it?

What you listed is basicly what I have and want to employ; FMU, dsm 450's, and an afc... since i have them collecting dust. ...I'll have to pm you later.

notoriousB

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gearhead313 &raquo;</TD></TR><TR><TD CLASS="quote">no dyno's huh?</TD></TR></TABLE>

FMU dyno sheet on my 6th gen accord from a few years ago:

hp/trq


afr/boost


FYI - this is a 12:1 FMU using the Airtex inline fuel pump.

HybridKOOP

Pretty damn steady for an FMU.

BoostR41

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gearhead313 &raquo;</TD></TR><TR><TD CLASS="quote">Ah, i never did know you ran an FMU setup. I'm guessing you never dyno'd it?

What you listed is basicly what I have and want to employ; FMU, dsm 450's, and an afc... since i have them collecting dust. ...I'll have to pm you later.</TD></TR></TABLE>

yeah I just had the wideband in the car and got it to run well part throttle tip in but was always pig rich up top. Inline pro ran the FMU set up I had for years

notoriousB

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HybridKOOP &raquo;</TD></TR><TR><TD CLASS="quote">Pretty damn steady for an FMU.</TD></TR></TABLE>
I thank the inline fuel pump for that. The only problem I ever had with that setup was a missing link that didn't always like to work right.

gearhead313

wow, that isn't bad at all. did you adjust fuel pressure at all with the extra pump?

notoriousB

nope, stock FPR, stock rail.

Flamenco-T

This is my old old old dyno sheet.....

Stock GS-R with drag 3 kit, stock injectors, stock everything..



stan