h22a injectors in b16a?

[MrPlow]

firstly, do they fit striaght in without changing anything? if so will the car benefit from these, i have raised my cars air intake afair bit, the reason why i am wanting to put h22a injectors in are to supply more fuel to cope with the more air?

an adjustable fuel pressure reg. is on its way also, i thought it will help to have the h22a injectors???

any feedback? experiance? would be great!

[tanghy]

you'll need a standalone ecu

[tinkerbell]

what do your afr ratios look like?

one of my engines puts out 120kW+ with stock 245cc injectors and 55psi fuel rail pressure...

[Weq]

u wont benifit from them. the stock ecu may be able to cope though, they are only 40cc over ur current.

[tinkerbell]

the OBD1 h22a's are 345cc Peak and Hold

and the OBD2 ones are 290cc and are Saturated

[MrPlow]

So what do you guys suggest?

In the end are the only possible outcomes to either gain or to come out even? I have a hondata being installed with a month or so'ish...

Also will adding a fuel pressure reg. mean a bigger fuel pump is needed????

[tinkerbell]

FPR is the same as adding bigger injectors = cheaper and MORE flexible!

you can fit a WRX fuel pump pretty easy - these can be found for <$50 good for upto 180kW?

have a read here about injector sizing and fuel flow:

http://www.rceng.com/technical.htm

[ProECU]

higher fuel pressure is not always a good thing. Higher fuel pressure results in higher fuel temps, hence easier preignition.

I'd keep fuel pressure under 60psi and use larger injectors, or if this isnt enough, use a second fuel pump....

...but what would I know right?

ITR FPR's flow more than any other stock B FPR.... use those if available

[MrPlow]

Okay okay we getting somewhere here....

What about just adding a bigger fuel pump and a fuel press reg?

[ProECU]

depends what you want to achieve...

near stock power i'd just upgrade FPR.
More fuel pressure from fuel pump before FPR is useless unless a FPR upgrade is done.

[MrPlow]

Okay so i will upgrade the fuel pump and FPR and see what happens?

anyone recommend a fuel pump and FPR?

[tinkerbell]

WRX and B&M

[speedracr]

As Tinker has said, the WRX pump is an affordable option. Haven't tried the B&M FPR, but Sard is a good choice IMO too.

[MrPlow]

is the wrx fuel pump straight swap from the ek4 one? no modifications? have you done this? or anyone done this?

[tinkerbell]

is the wrx fuel pump straight swap from the ek4 one? no modifications? have you done this? or anyone done this?

if the EK pump is the same setup as LS integra - follow the pics:

Stock Honda fuel pump in cradle:

http://www.ozhonda.com/gallery/data/2/106wrxpump002.jpg

MY00 WRX pump zip-tied to cradle:

http://www.ozhonda.com/gallery/data/2/106wrxpump001.jpg

connections are easy:

http://www.ozhonda.com/gallery/data/2/106wrxpump004.jpg

make sure you re-use any rubber isolators, otherwise it will sound LOUD.

this is EXTREME diy stuff.

if you are removing the fuel tank - take HEAPS of precautions -

*notify others what you are doing

*no smoking

*fire extingiushers ready

*do not inhale fumes

*completely drain tank before removal

[tinkerbell]

just looked it up & noticed the fuel pump might be accessible from inside the cabin - makes it a shit load easier!!!

seems to be the same design too ;)

[tinkerbell]

PS - you MUST make sure the 'sock' that sits in the tank is installed at the exactly the same angle as it was when you pulled it out - this is where pictures of the stock pump help LOTS!!!

[MrPlow]

okay well i think im going to let me mech. do this one....

[flipmods]

I don't recomend putting more fuel in your car if you don't reprogram your ECU. Remember more fuel is richer mixture which means less power unless of course it is tuned for maximum performance.