just bought a fmu from ebay, no istructions on how to install!
any one installed one on and can give me tips?
it has three openings, one on top and two on the bottom... what go's where?
0
Fmu Help!
Started by panda, Mar 28 2005 07:42 PM
5 replies to this topic
#1
Posted 28 March 2005 - 07:42 PM
#2
Posted 29 March 2005 - 12:33 AM
one is for vacuum, one if for fuel return inlet, one is for fuel return outlet.
What fmu did you get?
What fmu did you get?
90 crx si
13.17@113 street tires low boost
86 samurai g16 turbo
13.17@113 street tires low boost
86 samurai g16 turbo
#3
Posted 30 March 2005 - 06:30 PM
#4
Posted 30 March 2005 - 09:49 PM
it goes like this:
smallest one on top goes to vacuum source on intake (after throttle body)
tip: just tee into the vacuum line for the stock fuel pressure regulator
highest bottom fitting goes to the fuel return line from the stock fuel pressure regulator
very bottom fitting goes to the return line to the tank that comes through the fire wall
happy boosting,
-tony
smallest one on top goes to vacuum source on intake (after throttle body)
tip: just tee into the vacuum line for the stock fuel pressure regulator
highest bottom fitting goes to the fuel return line from the stock fuel pressure regulator
very bottom fitting goes to the return line to the tank that comes through the fire wall
happy boosting,
-tony
-Tony
1986 CRX Si turbo project best 1/8mi et= 8.02
1987 Civic Wagon Real Time 4wd (SOLD)
1993 Del Sol Si (sold)
and Various non-Hondas
www.cheaptrixracing.com
ex Wagovan-Clan Member
#5
Posted 31 March 2005 - 01:30 AM
apparentley nothign shoudl be teed off rom the FPR. it takes time for those vacuum lines to pressurize/see vacuum and the fpr needs a responsive source, teeing off it will increase the response time and cause lower fuel pressures when applying the gas and higher fuel pressure when releasing the gas.
Edited by CRXdan, 31 March 2005 - 01:31 AM.
90 crx si
13.17@113 street tires low boost
86 samurai g16 turbo
13.17@113 street tires low boost
86 samurai g16 turbo
#6
Posted 31 March 2005 - 03:09 PM
as small as the diameter of that tubing is, it will not make a difference (1/1000th of a second to pressurize/depressurize will not cause any problems). just don't use really long lengths if you can help it. less than a foot from the fpr to the fmu will not cause a noticable (or probably even measurable) difference.
the instructions that came with mine said to tee there.
besides, the supply from the tee is going to a device that will be over-riding the stock fpr anyway
-tony
the instructions that came with mine said to tee there.
besides, the supply from the tee is going to a device that will be over-riding the stock fpr anyway
-tony
Edited by therealtime, 31 March 2005 - 03:10 PM.
-Tony
1986 CRX Si turbo project best 1/8mi et= 8.02
1987 Civic Wagon Real Time 4wd (SOLD)
1993 Del Sol Si (sold)
and Various non-Hondas
www.cheaptrixracing.com
ex Wagovan-Clan Member