Best way to see whats on the table is to do a log with a durametric cable and look at the injector duty cycle. It'll tell you when the fuel is running our and the ecu starts pulling things back. It's hard to say at X power b/c of different turbos delivering the power in different means and the other factors of the car / weather / fuel type / etc.

 

mbgt72, thanks and I get that it's probably the best way given all the variables.

Is there a commonly accepted figure that stock injectors will support on the standard 3.8 bar fpr vs 5 bar?

Coming from the supra world, a quick and dirty convention was that per cc of injector flow, roughly equaled to supportable hp. So something like a 600cc injector, equated to 600 crank hp worth of airflow.

Something I need to figure out still, and possibly with the durametric once I get it is an inconsistent response from the tune/motor. Sometimes it doesn't seem to do the full 1 bar of boost. And other times, there will be lazy response.

I've already fixed a couple of boost leaks at the divertors and a minor one at the TB rear seal. I need to pressure test again to see if there's any other issues. I suspect a MAF and/or check valve issue yet to be resolved.