Injector Variation Good Or Bad%

[Ruthr33]

Hello. Got my injectors tested

650rpm 1600 pulses

0.0

-0.6

-2.6

-2.6

-2.6

-5.1%

What do you reckon?

There denso 550

Service?

Throw away?

Chuck them in and giv em a go?

[scotty nm35]

Revs make no difference in flow tests, it just changes how quick the tube fills.

The opening (lag) times are critical for idle and obviously flow at 100% duty is important at the pressure you plan to run the fuel at.

For the cost of cleaning and replacing the filter/Orings you should probably have looked at new EV14's.

[Ruthr33]

When he tested at 2500 rpm it came up diferent

0.0

0.0

0.6

0.6

2.4

3.0%

It does seam odd.

[Ruthr33]

My car idles perfectly fine,

I also only use 64% duty

The question is. one cylinder 5.1 percent leaner = melted piston?

Or.. 5 cylinders over compensating to get 14.7 afrs= loss of power.

In a nut shell.

Should I recon

Buy new

Or leav them be.

It lives it's life on the limiter aswell

[MrStabby]

Have they been cleaned or just flow tested? Typically you would clean first then flow test. Some ECUs let you tweak individual injectors to compensate for variation. If you're running an rb26, put the highest flowing injector in #6 as the stock plenum tends to feed more air to that one. Nismo plenum fixes that issue.

[Ruthr33]

Just gonna bin them. And get new bosch and top feed rail. I'll search first but I'm just gonna throw it out there real quick,

Where do I get the cheapest set and rail to suit greddy manifold. Any particular size or model I have to get to fit?

Lastly, anyone want my denso 550 in rail?

150 bux.

[scotty nm35]

PM me once you have some prices, I can usually beat them.

[Dose Pipe Sutututu]

PM me once you have some prices, I can usually beat them.

And local support!

[Ruthr33]

Yikes, I didn't get to read that before I had a couple beers an got on ebay. Got 6 48mm ev14 550cc with uscar to denso adaptors for 300 bux

Also got aeroflow fuel rail and 5/16 hose adapters for 210.

Hope I haven't jumped the gun and got the wrong ones.

[Ruthr33]

An nothing local about where I'm located in broome. 2000kms from perth, 2000kms from darwin. The joys.