a shop owner told me to run a secondary/external fuel pump when i go boost? necessary? and he said that if not it will melt something cant remember what it was. Is an external fuel pump needed?! Thanks!

 

replace the stock fuel pump with a walbro 255lph there only $79 shipped

 

Oh i already have have a walbro 255lph already on it, but he was saying to get an external one as well or i dont kno what he meant by that? but yah.

 

The Walbro can output 120 psi of fuel pressure. If you run another one inline, you'll compound the pressures and it'll be too high for the injectors IMO. That is when you might get injector lockup. increasing fuel pressure to compensate for boost should really be only up to about 7-9 psi of boost with the stock size injectors. You can do more boost with bigger injectors and fuel pressure, IMO.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Synapse &raquo;</TD></TR><TR><TD CLASS="quote">The Walbro can output 120 psi of fuel pressure. If you run another one inline, you'll compound the pressures and it'll be too high for the injectors IMO. That is when you might get injector lockup. increasing fuel pressure to compensate for boost should really be only up to about 7-9 psi of boost with the stock size injectors. You can do more boost with bigger injectors and fuel pressure, IMO.</TD></TR></TABLE>

we dont use fmus on this site...but thanks

 

what can you use instead of FMU? something reputable but not over the wall price?

 

I guess it depends on how much boost you want to run, and how much money you want to spend.

Using a rising rate regulator isn't the best, but if you don't have funds, there's nothing wrong with running 5-7 psi on it. You could always run one of these for now at 12:1, and then switch to the 1:1 setting when you get your ECU, [URL] http://www.synapseengineering.com/pr....html[/URL]

There's also, EMS, Hondata, Emanage . . .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by V8-eater &raquo;</TD></TR><TR><TD CLASS="quote">what can you use instead of FMU? something reputable but not over the wall price?</TD></TR></TABLE>

lots of free tuning software out there.

But rule #1 should be include the cost of a good tune in witht he price of a turbo kit.Why skimp on the tune?

 

you may have to do more homework, before you turbo your car.

 

Ive been doing a lot, just wondering which FMU would be best to use if i want to run between 8-12lbs nothing more for now, not too crazy on boost yet

 

I'm biased, but how about the one that you just bolt onto the rail? And then you can use the same one when you go chipped ECU. Synchronic FPR.

http://www.synapseengineering.....html