ImprezedRS

Ok I'm still piecing together my parts to turbo my 6 port motor.

So far I got a JDM S5 Turbo and I will be doing the S5 Intake manifold. I'm going to run the car on the stock 88 NA ECU and the motor is a S5 6 port.

Now heres my question, mainly its about fuel, I will be getting the Walboro in tank 255 pump, but I'm not sure on the injectors to get? I'm going ot buy brand new injectors and I'm looking towards getting RC Engineering injectors. Now I was talking to a friend of mine and he told me to go ahead and get the 750 cc injectors and not go with the 550 cc cause I will more than likly max them out later on.

So should I go with the 750 cc anyways or are they going to give me trouble, I want to run about 8 psi to start with.

Also should i get a rising rate fuel pressure regulator?

Thanks for your help.

ImprezedRS

Bump

SonicRaT

iTrader: (6)

550 primary, 720 secondary, good luck, cuz you're going to have some stupid hesitations with the N/a ecu.

ImprezedRS

the NA ecu is temporary till i get the haltech unit

White_FC

You should get the standalone straight away.

Not point dicking around with the stock heap of ****, especially in a non-stock application like yours.

Even a second hand microtech/haltech/whatever will do you worlds of good.

SonicRaT

iTrader: (6)

Indeed, my car runs like **** until it's warmed up because of that stock peice of crap ECU, going microtech, but that's only because the stock ECU can't handle my 720/1000cc injectors, o well.

White_FC

You'll never look back SonicRaT....

The difference is like night and day, when I turbocharged my last N/A for the first time I used the stock computer, had endless problems with hesitations and all sorts of other bullshit like your having with cold starts.

Bought my second hand, few generations old microtech and never looked back..
Looking at buying a new model one now..
But my old Digi Pro fuel and ignition computer is still working excellently and I'm getting comparable fuel economy to stock, if not better sometimes....

SonicRaT

iTrader: (6)

Haha, yeah, I threw in a TII ecu and just used that, since i was having such issues with the primaries (when i was 550/720), now that i've got the 720's in the primary spot, I run into the same problems. But it's damned fast with the BNR, can only imagine the world of difference a standalone will do for it, I must be around 350-360ish right now with the stock ECU and the SAFC, can't wait!

stacher

ImprezedRS...I am runing 550cc primary/1000cc secondary at 10 psi with MicroTech. I have not had any fuel problems. You can go with the 750cc. If you need more fuel in the future, use the 750cc in your primaries and bigger secondaries.

ImprezedRS

Thanks everone for your help, oh where can i find info on this microtech, never heard of it before.

ImprezedRS

Ok one more quick question, if I go with a standalone ecu do i need to get a FMU, like the Cartech one?

Parastie

You've never heard of Microtech? Jesus christ man! There's part of this forum didicated to it under the Engine Management page.

ImprezedRS

Well maybe I will look in there