Injectors

[zr200]

just trying to work out what injectors i have, car is an r32 gtr

i know they are 1000cc, and i think they are sard.

it has an aftermarket fuel rail.

i was looking at a new set, but is there a way of finding out what they are without pulling them out.

i have been looking at some new sets, wondering what is best when it comes to,

impendance - have seen mostly low

multiple hole spray?

recovery time m/s

and how do i know what will bolt sraight in?

i am new to working with fuel setups so any help and knowledge will be great help.

cheers

[R.3.2.G.T.R]

what colour are they? U can look up manufacturers offering for the rb26 for comparison, also if u running PFC with controller for example, u could find out the latency set for injectors for cross reference perhaps, injectors also have numbers on them that should be visible while fitted so u can google them

[Moodles2]

Sard injectors, well Denso to be exact usually black bodies, with a colored top.. here's what a Sard (Denso) 1000cc injector looks like: http://www.sardracing.com/images/products/Injector63518.JPG

Rochestor 1000cc injector looks like: http://www.tweakit.net/shop/images/rochester_11mm.gif

Those are both 11mm o-ring injectors.

If it's a japanese injector, it's most likely to be a Denso injector.

The aftermarket fuel rail is an unknown, until you know the brand or more details about it, you won't know what injectors you can fit in it (whether it's a 11mm o-ring type or 14mm o-ring type rail).

You need low impedance injectors with GTR ECUs, what ECU do you have?

[zr200]

ecu is an EMS 8860, and the injectors are black.

guess i will have to pull the rail off, was going to pull the injectors and get them cleaned and flowed too.

so i just measure the size of the holes in the rail to find out if there 11mm or 14mm??

cheers

[zr200]

if i buy new injectors does the car need to be dynoed once they are fitted???

[MrStabby]

if i buy new injectors does the car need to be dynoed once they are fitted???

If they are a different size, you need to put that size and latency settings into your ECU, then get it checked on the dyno. If they're just new replacements of what you already have, you dont need to do anything.

[Moodles2]

Why are you changing them anyway, the existing 1000cc injectors should support alittle over 600kw on PULP (not sure on E85, 450kw maybe?).

If you are replacing them with different brand 1000cc injectors, the lag time will need to be adjusted in the ECU as every injector has different response times, bigger or smaller injectors you'll have to do this anyway and adjust the injector size correction, either way though it is a good idea to run the car on the dyno to confirm the AFRs are spot on especially if you are making that amount of power.