Durtyss

First, off I'm sure its been asked a million times. I have searced as good as I could on my cell, no pc right now so give me a break I tried searching. I have a 89 crx with a b16 swap. I am turboing shooting around 200 thru 250hp. I have obd0 ecu chipped with zdyne. I need to know what the best solution for fulling etc. Injector size, just using fmu and what ratio or fpr etc. I'm so lost on what to do for fueling thanks in advance.

smoovy

DSM 450cc or 550cc is something you can use. and as far as the fuel pump, a walbro 255 is sufficient for you. as for FPR, your stock one is fine, or I can suggest a AEM FPR. 250hp on a B16 is not much of anything!!! so you don't need anything too crazy. Keep it simple

Durtyss

So I would just need the 550 and pump and resitor box and that be perfect as far as fuel goes? Would I have to increase fuel rail pressure, and if yes to. What.

smoovy

nope. no increasing anything. 450cc-550cc DSM injectors( can find these pretty cheap) and a walbro 255 fuel pump(cheap) and your set. your car will need to be tuned for the larger injectors but that's it.

Durtyss

K I'm such a newb to this honda, lol no one around me can tune. So what would I hafta do as far as tuning. That's why I was wondering if an fmu be easier. I live in small town so it blows. Is there a place I could chip my ecu u reccomed.

smoovy

Phearable.net, xenocron.com. I would not attempt to try to tune this by yourself if your fresh at it. where are you located?

Durtyss

I'm in northern nevada , so 550 pump and a tune I should be set ko, I am only planing on 6 to 8 psi.

smoovy

by reno? can you give a location or update your profile so people won't keep asking.

Durtyss

Elko , nv about 4 hours from reno 3 hrs from slc ut.

smoovy

Hondoctors LLC
4550 Donovan Way Suite 108
North Las Vegas, NV 89081
http://www.hondoctors.com
702-639-6333

although this is in vegas(and pretty far from you), there are more tuners than the list I found. I can't log onto PGMFI.org right now.

Durtyss

but for the time being can i just run on stock injectors and pump, with a fmu of 12-1

smoovy

yes you can, not the best and can't handle more than 7psi I think or less, and no timing retard or anything.....i dunno, you can do it, but probably the WORST case scenerio. crome and uberdata are free programs!!!!!! FREE!!!

Durtyss

Well ok I'm going to tune and use the 450. Now I no I need a resistor box, but I have a 89 crx obd0 so I can just us the one in my car correct. And a walbro pump is a deff correct?

inspector01

Get the car running with everything installed except injectors, and remove the wg spring and drive it to SLC or somewhere else that has a good tuner. I lived about 3 1/2 hours from the nearest tuner when I turbod my first car, so I learned how to tune on my own to get the car running good, then drove to the tuners after about a month.

Durtyss

I'm going to get ecu chipped wit base tune. I'm asking will the resistor boc on tha car work for the dsm

HiProfile

It gets me every time I see the 255 referenced for a sub-400whp setup. A 190 can still do 400whp, but with less noise and less pressure at idle. Even a stock pump from a DOHC VTEC chassis will work for 300whp.

Zdyne shouldn't have a need for an FMU. If you paid an arm and a leg for an ems but still used an FMU, you'd get flames to no end. BRE and turboedit can do obd0 for far less (virtually free), then there's converting to OBD1. If you HAVE to run with just stock pump/injectors and FMU, it will work for LOW boost. Same with a basemap on a chip. You still have to check the AFR's so you don't blow your motor. A motor build is far more expensive than a $200 wideband.

smoovy

I'm sure it will but the 190 and 255 are the same price. why not get the 255 and be done with it? mine is nowhere near loud. some people complain about the noise but I don't have that problem, and for a stock Vtec pump, I know there good, but for forced induction, I would want to steer clear of these because I don't want the possibility of fuel starvation.

Stock Vtec pump: 160LPH @ 40Psi @ 13.5V ($99.00 new)
Walbro: 190LPH @ 40Psi @ 13.5V ($99.00 new)
Walbro: 255LPH @ 40Psi @ 13.5V ($99.00 New)

Durtyss

So between you two I have came to this. A new pump at the least, an fmu still don't no what ratio , and a wideband. At least from that I can c if I'm lacking fuel etc. I was hoping to get a deff answer, but I understand everyone has there own way. Also I don't have the zdyne gold its just a chipped ecu.

smoovy

12:1 FMU is what I've used years ago. 10:1 is too rich but you can always go adjustable too.

Durtyss

Woulded 12/1 be richer then 10/1 ? Correct right one pound boost 12 fuel pressure