[_TB_]

Originally Posted by DWR

Now we are on the right discussion. Higher pressure, more volume, shorter duration, higher power density. The remaps do some of this, but there is a plausibility limit on the volume control valve duty cycle % that triggers limp mode.

If you're a serious remapper, you also look at the plausibility limits - especially the maximum allowed duty cycle - if you are running on the limit, and is well aware of the risks in doing so.

Originally Posted by DWR

Upping the pressure from the LPFP seems to be an option to increase the required duty cycle,

You mean lower right?

Originally Posted by DWR

but you have to be careful not to over do it. EKP control module contains fuel maps that relate to the delivery of low pressure fuel to the HPFP. A piggyback solution is hard to implement because LPFP speed is in a feedback loop with the EKP. However, raising pressure on the return line has potential. It just needs to be implemented for short durations, at high load.

You have all the information in the file - why not just do it in the remap? I've seen far to many bodge tunes where the remapper did not know how to it right, so had to use piggyback og other "external tools"

Originally Posted by DWR

Of course, modifiying the HPFP to be able to deliver more volume is how all this is usually done. I believe one of our members is chipping away at that.

Yes. More flow from LPFP is always a good thing..