HOW TO homemade "Super FMU"

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09-04-2010, 09:13 AM

#11

taiajam

0.5 BAR

Join Date: Aug 2005

Posts: 187

how do you know if its set tot 10:1 after using the mbc?
or are you just testing with a wb?

10-07-2010, 05:11 PM

#12

hard2obtain

1.0 BAR

Thread Starter

Join Date: Jan 2006

Posts: 526

Probably you can use a fuel pressure gauge inside the car

10-20-2010, 03:54 AM

#13

90accordf22a1

0.0 BAR

Join Date: Oct 2010

Posts: 4

thats sucks u have a neon i love hondas OBD1 all the way

10-20-2010, 06:04 PM

#14

lsicivic

0.0 BAR

Join Date: Oct 2010

Posts: 5

whats an fmu? or an mbc?

12-13-2010, 07:55 AM

#15

janus

0.0 BAR

Join Date: Nov 2009

Location: Austria

Posts: 22

fuel management unit, and manual boost controller. dunno if there's an FAQ around here, but the FMU is normally a kind of fuel pressure regulator that increases fuel pressure in relation to boost (intake pressure above atmospheric pressure), i.e. a 1:1 FMU (which would basically be any vacuum-referenced fuel pressure regulator (FPR, VRFPR) would increase fuel pressure 1 psi for each 1 psi of boost, and decrease 1 psi for each 1 psi of vacuum. An MBC, when connected between an intake manifold vacuum source and the turbo's wastegate, allows you to block any vac/boost signal to it, in other words allows you to actively set the boost at which the signal is allowed to pass through, in order to open the wastegate.

hth