[dlheman]

I think you need HFS4 for DISI engine.

But I think some of the later generation HFS3 can handle direct injection engine.

I'd stay away from TB location. Is hard to get equal distribution across all 4 cylinders especially when injecting large amount of wmi.

But anyhow, I would rather do a 60 second SYS test spray into container to get the actual cc/min. Once you add in pressure loss and maybe add a couple of check valves, those figures on the chart table will no longer match the actual.

That being said, maybe go for 687cc/min for a wee bit more head room.