Kid-jdm-teggy

I'm currently at 95% duty cycle with 1000cc injectors on e85 and at 15psi. If I lower my boost down to 11psi will it lower the duty cycle or is it already preset for WOT?

OneBadTurboCRV

Duty cycle has nothing to do with what boost pressure you are running. It strictly involves the injectors and their fuel output. It is part of the tune and engine requirements and is estimated anyways. To lower your duty cycle you need to have less fuel demand and pull fuel out of the map. This could potentially be accomplished by lowering the boost, upping the fuel pressure, getting larger injectors, etc. but this is something you will need to talk to your tuner about. This is not something that is automatically reduced, it must manually be done (assuming AFRs are still safe) in the EMS itself.

boosted94gsr

If your tuner tuned every row in boost 1-15psi for the proper afr then yes you can lower your boost to 11psi and it will in turn lower your injector duty cycle. Less boost equals less air witch means less fuel or lower injector duty cycle for the same afr. You should do what onebadturbocrv recommend and talk to your tuner about it.

xile6

Yes and no.

The more power you out put the more the injectors work.
So if you change nothing in your setup but the psi level.
Then yes you will lower the hp output and the injector duty %.

Nownon the tune. If your tuner skip over those psi. Then your either be running rich pr slightly lean at that psi.