My Setup:

Stock b16a2
t3/t4 turbo .48/a/r .63
tial 38mm wastegate (0.6 bar)
Precision 350hp FMIC
P-Fab Turbo Manifold
2.5' Downpipe--> 2.25 HKS catback exhaust
Hallman Boost Controller (set to the minimum level possible)
RC 550 Injectors
Vortech BOV
Walbro 255 Fuel Pump
P06 W/ Crome basemap

Going to get tuned on friday.....Only looking to boost around 7-8 psi. What do you guys think do I absolutely need a fuel pressure regulator?

 

I'd say it's worth it to have it.

And keep in mind, you say you want to run 7-8 psi or the mimimum level set on the MBC. The MBC can't be set any lower than the wastegate spring, so that will dictate your mimimum boost level

 

No just use the stock one.

RC injectors don't like higher fuel pressure anyway. It even says that on them when you get them.

People have made over 600whp with the stock FPR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GetawayInMoscow &raquo;</TD></TR><TR><TD CLASS="quote">No just use the stock one.</TD></TR></TABLE>

+1

 

Ok I want to make the minimum that my wastegate will allow (8.70).....Will the stock fpr hold up? Especially if I'm only trying to get like 240-250whp??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondamonkey &raquo;</TD></TR><TR><TD CLASS="quote">Ok I want to make the minimum that my wastegate will allow (8.70).....Will the stock fpr hold up? Especially if I'm only trying to get like 240-250whp??</TD></TR></TABLE>

Yes, the stock FPR will be fine.

 

why do you think it wont?

yes it will hold just fine

 

Thanks guy! The dude who helped me put the turbo on insists I should get one...but he's also trying to sell me his....so I'm glad for your input....this is random but do any of you know which wire i could run the radiator fan direct with (sorry the search feature isn't working)?? I know it's either yellow with a a black stripe or black with a yellow stripe.

 

k well that guy is an idiot then lol

i wouldnt wire the fan direct. but thats IMO

 

no, you do not need an aftermarket FPR...i've been running 2 years on the stock one

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by agrn93ls &raquo;</TD></TR><TR><TD CLASS="quote">k well that guy is an idiot then lol

i wouldnt wire the fan direct. but thats IMO</TD></TR></TABLE>

Yea, i realize that more and more each day.....so do i leave the fan the way it is...the same dude suggests to wire the fan so it comes on when the ignition is activated? How is yours setup....stock??

 

my fan comes on when the ignition is on.

 

my fan comes on when my computer tells it to.

lol it dont really matter i just dont like choppin into wiring i dont have to. but leavin it on all the damn time works too... for some people. i rather not. wouldnt mind it coming on at a lower temp though.

 

I've wired mine up to a switch. That way i can either let the fan turn on normally, or run it all the time during hot weather.

It's extremely easy to wire up.

 

Im still using stock FPR, my tuner said an aftermarket one isnt necessicary... or fuel rail...

493whp so far, goin for more soon

 

the only reason you would need a fpr is if you wanted to run more pressure to get more hp from your injectors

example:
you hit 350 hp with 550 injectors and your duty cycle is at 90%

you could jump your fuel pressure up a couple psi and lower your duty cycle to something a bit less and more safely make the power

 

what kind of clutch do you have ?

 

My car runs 1000% better now that I have an FPR and fuel pump as opposed to just a fuel pump.

 

I didn't see anyone else mention this, but it depends on which Walbro 255 Pump you purchased. If you purchased the HP version (high pressure), then you may have problems with the pressure pushing past the factory regulator. If you purchased the LP version (low pressure), then your factory regulator will be fine.

Hope that helps,

Craig

You can view the different pumps here. - Walbro Fuel Pumps at Tuner Toys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TunerToys &raquo;</TD></TR><TR><TD CLASS="quote">I didn't see anyone else mention this, but it depends on which Walbro 255 Pump you purchased. If you purchased the HP version (high pressure), then you may have problems with the pressure pushing past the factory regulator. If you purchased the LP version (low pressure), then your factory regulator will be fine.

Hope that helps,

Craig

You can view the different pumps here. - Walbro Fuel Pumps at Tuner Toys</TD></TR></TABLE>


do any of the FPR's LOWER fuel pressure to accomodate for the raise in pressure caused by the Walbro?

the walbro has a more efficient flow at lower pressures so id like to run stock fuel pressure

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote">what kind of clutch do you have ? </TD></TR></TABLE>

Exedy Stage 1

 

Just get a FPR. What's an extra $120? The stock may not hold constant fuel pressure when going on boost and you might have a hard time tuning. With a higher flow fuel pump, it might also be outflown. That'sm just my opinion. I would at least put in a fuel pressure gauge so you can monitor the fuel pressure.

Adriano