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Forum nameTurbo/Nitrous Tech
Topic subjectHRC fmu system ???
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=11577
11577, HRC fmu system ???
Posted by wakebord99, Dec-03-01 02:21 PM
Just rebuild most of my drive train, and i'm ready for more boost. I bought the STAGE II HRC kit, which came with a very interesting fmu (fuel managment unit). According to the mechanic's manual, stock fuel pressure is supposed to be 50 at idle, and with the fmu i have, fuel pressure raises to 150 ish at 9 psi of boost. Is this right? If so, how high have any of you pushed this fmu, as far as PSI before having any problems?

97' Eclipse RS (kinda)

Present mods:
HRC stage III turbo kit (12 psi street, 25 psi track)
HKS 2 1/2" cat back exhaust w/burnt cat
16" wheels w/Yokohomo tires (215/40)
420A engine w/ tooled crank, billet crower rods, and 8.5:1 JE pistons
Head ported and polished, 3 angled valve job
Power-stop brakes w/axis pads
Ebachi Pro lowering kit (1.8")
MSD DIS-2 ignition system w/turbo retard

Near Future:
Stand-alone fuel system
550cc injectors, and fuel rail
TEC III fuel/ecu system
17” Hart racing wheels
KYB AGX struts, w/ upgraded anti sway bars
Rear brake conversion (front to rear, Brembo in front)

I LOVE THESE DSMs
Jay-
wakbrd99@aol.com

11578, RE: HRC fmu system ???
Posted by pn0ymahal, Dec-03-01 03:41 PM
idle is sopose to be 47-55psi
6psi=80-90psi i believe
9psi= 105
turn your idle down if needed to about 55psi
then adjust your rise rate DOWN counterclockwise i believe.
hey dude, could you take a long at my other pos about MSD also if you could look if you have any other wires hook up besides what goes to to coil etc? also how you have you tach adapter hooked up and what are your setting on the side, isthere anything coming out from the tach output?
thanks
Michael 99gst hrc stage 2