my car is hesitating
08-17-2006, 02:02 AM
#12
1.0 BAR
Join Date: Jan 2006
Posts: 367
Re: my car is hesitating
I have an fmu (8:1),external fuel pump(MSD),check valves and a fuel pressure regulator. Running 10PSI with no problems,get ahold of the Maximum boost book and read it,it tells you proper fuel pressures for low boost applications. All on a stock B18b with stock PR4 ECU.
08-17-2006, 12:02 PM
#14
1.0 BAR
Join Date: Mar 2006
Posts: 426
Re: my car is hesitating
dude just spend the money to get your ecu chipped then run bigger injectors and you will be better off in the long run! unless you got money like that
stock fpr is fine
Originally Posted by iLLstate
Maybe you can answer my question, im gonna be running 5lbs with a fmu and upgraded fuel pump on my B20a5, but i was wondering if i should also get a fuel pressure regulator too like in ur setup?, or is it not needed for 5lbs. and what kind are you using?
08-17-2006, 12:12 PM
#15
1.0 BAR
Join Date: Jan 2006
Posts: 367
Re: my car is hesitating
thanks guys, i was thinking about chipping, but then ill have to convert to obd1 and thats expensive, then ill have to pay for a obd1 ecu, and a butt load for tuning because i dont know how and i dont know any one that knows how. Since this is my first setup i wanted to see how cheap i can really go and right now i have pretty much everything for my setup and im just about to break $500.00
08-18-2006, 09:44 AM
#18
3.0 BAR
Join Date: Mar 2005
Posts: 3,161
Re: my car is hesitating
Originally Posted by marco_wezo
I have an fmu (8:1),external fuel pump(MSD),check valves and a fuel pressure regulator. Running 10PSI with no problems,get ahold of the Maximum boost book and read it,it tells you proper fuel pressures for low boost applications. All on a stock B18b with stock PR4 ECU.
Cheers
Cheers
Okay, 8:1 FMU. So your car doesn't want to ever start then does, coughs black smoke, and putts down the road boosting 10psi and 10 feet of black smoke, right? Your gas milage is equal to like what? A Hummer?
JP
08-18-2006, 12:33 PM
#19
1.5 BAR
Join Date: Jan 2006
Posts: 670
Re: my car is hesitating
Originally Posted by vietxdragon
if you do plan on running the FMU, i also getting suggest getting some bigger injectors depending on what your going to do on your setup.
Originally Posted by Dmc1
Don't listen to these freaks. If your going to run low boost you can get by with an fmu. but YOU CANNOT RUN LARGER INJECTORS WITH AN FMU!!
And if you wanna be extra safe (safe as you can w/an fmu), then run an inline fuel pump. In tank pumps are great for flowing large volumes, but they aren't built to handle really high fuel pressures. That's where inline fuel pumps are better.
And you should definately retard your ign timing as well with the fmu.
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