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FMU question

Old 12-08-2004, 10:44 PM
  #1  
1.5 BAR
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Default FMU question

what is so bad about an fmu? do you need bigger injectors if you run an FMU? would it be better if you ran bigger injectors with an FMU. what all do you need for an FMU setup? just the FMU? thanks dont flame. just give me links if u are going to flame. do you have any sites where they do show pictures of the instalation and neccessities for the instalation? also would it be better to get a 255/190lph fuel pump for the fmu? or can i just use my stock one? thanks
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Old 12-08-2004, 11:24 PM
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Default Re:FMU question

I don't like them because they raise the fuel pressure to ridiculous levels which is not good for injectors.
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Old 12-08-2004, 11:29 PM
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Default Re:FMU question

High fuel pressure in an older car is just asking for trouble.

Also...tunability is slim to none.

IMO, better than the hack though at 5psi or under.

Dont use larger injectors and the FMU.

Did you read teh FAQ? I believe their is info their about FMUs
Chris Harris is offline  
Old 12-09-2004, 08:02 AM
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Default Re:FMU question

ya there is a section but it doesnt say ---- about them. that is why i am posting. check out this guys setup...
Precision Pro T03/T04 Turbo
TurboSmart Wastegate 35mm (5psi)
SRP Manual Boost Controller
Inline Pro TO4 Turbo Manifold
Precision Pro Intercooler
Greddy Type-S Blow Off Valve
Vortech Fuel Management Unit
Walboro 255lph In-Tank Fuel Pump
Aluminum Piping
Turbo Blox Missing Link
Custom Racing Downpipe
Custom Straight Pipe
Ractive Muffler
OBX Breather Filter
K&N Intake Filter
NGK Spark Plugs- Iridium
10W30 Mobile One Synthetic Oil
Stock B18B (LS) Internals

he is doing 13.3 in the 1/4mile.
he posts himself doing 13.7 on street tires

That is what i want to do. but i want 10psi going through my car. my buddy said that most factory turbocharged cars are equipped with an FMU.

Why shouldn't I use bigger injectors with the FMU I will have the 10ohm resistor pack on it too.
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Old 12-09-2004, 08:52 AM
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Default Re:FMU question

Originally Posted by DeleriouS
my buddy said that most factory turbocharged cars are equipped with an FMU.

Why shouldn't I use bigger injectors with the FMU I will have the 10ohm resistor pack on it too.
first off, your buddies givin you some wrong info

and secondly an FMU is used best with stock injectors because of the rate it flows, if you put a different sized injectors in, your causing the FMU to not work as it should by giving a different amount of pressure than what it should
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Old 12-09-2004, 09:12 AM
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Default Re:FMU question

If you want to run 13.3 in the 1/4, you need Uberdata/TurboEdit.

You arent going to get there on the FMU and the Hack is just dangerous IMO
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Old 12-09-2004, 02:01 PM
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Default Re:FMU question

i dont have that kind of money for tuning
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Old 12-09-2004, 06:13 PM
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Default Re:FMU question

im in the same boat, except i only wanna run 5 psi..

knowing how bad H series blocks are, do you think my lands will hold up to 5 psi with an FMU?
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Old 12-09-2004, 06:37 PM
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Default Re:FMU question

Originally Posted by DeleriouS
i dont have that kind of money for tuning
Then don't turbocharge your car yet. Don't you understand the importance of tuning? FMU does not equal tuning. I would wait till you have the money and do it right, unless you think doing it half *** and blowing a motor is cheaper. I think one engine is cheaper than 2. An FMU can work, but I strongly recommend some engine management. good luck
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Old 12-09-2004, 07:18 PM
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Default Re:FMU question

Originally Posted by 90turbohatch
Then don't turbocharge your car yet. Don't you understand the importance of tuning? FMU does not equal tuning. I would wait till you have the money and do it right, unless you think doing it half *** and blowing a motor is cheaper. I think one engine is cheaper than 2. An FMU can work, but I strongly recommend some engine management. good luck
what about in my case where there are no options for tuning besides hondata(if that), damn h23...
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