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Looking at the map I have from jeff my latency table is as follows:

7.81, 2.81, 1.65, 1.18, 0.78

The nasioc archive for my injectors recommends:

850 cc 3160 PE 850cc 2004+ STi Fuel Injectors 9.80, 2.70, 1.80, 1.50, 1.30

Which are right??

Latency is a physical characteristic of an injector. If you know the latency for the injectors that you are using under a defined voltage and fuel pressure, then you can scale them to make sure that you are having the ECU open them long enough for the right amount of fuel to flow in. But that is if you are having a fuel problem.

What are your AFRs? If they are within reason, and all the other parameters are good, then I would not worry about latency tuning.

If you are still having issues that don't show up as a log number from the engine, maybe your style of driving needs to match the new mechanical ability of the hardware that you installed.

zaxrex wrote:Latency is a physical characteristic of an injector. If you know the latency for the injectors that you are using under a defined voltage and fuel pressure, then you can scale them to make sure that you are having the ECU open them long enough for the right amount of fuel to flow in. But that is if you are having a fuel problem.

What are your AFRs? If they are within reason, and all the other parameters are good, then I would not worry about latency tuning.

If you are still having issues that don't show up as a log number from the engine, maybe your style of driving needs to match the new mechanical ability of the hardware that you installed.

What would be the symptoms of too much fuel flowing in? I am getting about 180-190 miles per tank after the modifications and I am not driving any differently than I did before, when I got ~ 300.

Phibs wrote:What would be the symptoms of too much fuel flowing in?

High AFR readings, or AFR "hunting" at cruise. Your tune was for the small period of time when you are pushing it. For the rest of the time IRL, you won't be able to tell from your organic posterior accelerometer. You may be able to smell more of your exhaust, and your pipes will soot up faster than before.

Phibs wrote:I am getting about 180-190 miles per tank after the modifications and I am not driving any differently than I did before, when I got ~ 300.

Once you have the off throttle AFRs fixed, it would be a good idea to adjust how you drive to make the most use of all the things you replaced.

When I "got bigger", I found myself mashing on the gas a bit harder down low b/c there used to be torque down low and I was expecting it. When the bigger turbo comes in, everything shifts to the higher RPM range and you have to change the way you drive.

My mileage was bad, but I got it going back up again as I learned how to have the engine and gearing matched up.

Phibs wrote:Looking at the map I have from jeff my latency table is as follows:

7.81, 2.81, 1.65, 1.18, 0.78

The nasioc archive for my injectors recommends:

850 cc 3160 PE 850cc 2004+ STi Fuel Injectors 9.80, 2.70, 1.80, 1.50, 1.30

Which are right??

Leave them where they are. Jeff probably adjusted them so that your idle was smooth.

Are you able to log your long term and short term fuel trims? if so, make sure that the ECU is adjusting as little as possible (This may be hard to do with the recent weather change). As Zarex mentioned, what are you AF trims doing at Idle and partial throttle?