[radz28]

If I understand things correctly, and what I'm working with works similarly - the PI doesn't come in until the EOI limit is reached. That EOI limit is commanded by us. That limit has been in the tune file for a LONG time, apparently. If we command an EOI of 180* (as Dave shows us in his blogs), the DI will keep spraying until it reaches that. Then the PI will come in, and take over the remainder of the fueling duties. I've seen it work on my car, and it appears to work well. There are other things going on in the background, too, which I'm not quite understanding (with fuel pressure calculations and compensations I believe). THPSI has had a BETA up for a little bit, which is what I've been working off of. I don't think things are yet finalized, and I'm not sure I can say more, so I'm only stating what I've seen, and what's already available from Mike (and with what DSX has shared about their upcoming product).

I see the big dip in RAIL PRESSURE and spike in IPW, just as DSX shows, too. I'm running more boost and a higher E' content, so my dip/spike (respectively) are exaggerated, but within limits THPSI has showed us with his testing in the past, and confirmed moreover by what DSX is sharing. Both of those DO come back around as RPMs increase.

If you already have a REFLEX+, you look to get, eventually, about the same results. I don't know if the integration will be as complete (i.e. full HPT SCANNER functionality and integration) and maybe it will - I, honestly don't know. I don't know that I need to pay another thousand dollars for that if I can already see the rest of the information I want, through the TunerPRO software, but that's just me. My OCD would prefer to see it all together, but, it sounds like the pure functionality is not all that complicated. Again - I'm not that experienced to see where all the maths are, but I see it works. It sounds like it's been working great on the BIMMERs.