That would be awesome. Any pics of what they did? Was is all made from scratch (assuming aluminum) or some re-do of stock parts?

When I measured it in the past, it would have to be from scratch since the fit would be quite tights with pumps being so fat on the bottom (if the tops were to be parallel, if not, then it wouldn't be that tight up top).

It just dawned on me that you'll be running 120+psi absolute fuel pressure. From what I recall, That's the very maximum they can handle (I've heard of one bursting at 130psi).

Thoughts?

I settled at 5.5 bar (80psi) and already did some WOT pulls, nothing blew up []. I hit something to the tune of 112psi on rail.

DEfinitely, luckily 5.5bar did the trick

I do carry one.

You need to read what I wrote through the thread to understand why I want unmodified injectors. It has to do with molested/aftermarket injectors having completely inadequate spray patterns for 2.7t. I see vast improvements in idle/low load driving with these over 1000cc EV14 (drilled out).

5.5bar is not even 1.5 times the stock pressure (of 4 bar). 5bar FPRs are in wide use on so called stage 3- along with 22psi+ of boost  turbos so I am not charting completely unknown waters here.

Bosch indicates these to be used with up to 8bar of pressure.

I understand.

There are no "new and original units" that spray the pattern 117/298 do. Anything approaching 1000cc from Bosch factory is either custom stuff (unaffordable) that could have what we need for spray pattern or generic stuff (still expensive!) that has straight spray pattern. I did my research.

The trend to go with low pressure FPRs is purely due to, what you noticed yoruself, fuel pump consideration and nothing else. That is not a factor here.

It is a fact that higher pressure = better atomization and that equals less knock, better MPG and more complete burning which are all benefits. I even noticed that on my own car after running 1000cc and these, 1000cc at 3bar and these at 5.5bar. After some tuning (so that idle, low and medium loads see perfect trims) and changing nothing else, I had to lower KFLF table for WOT as I was running very rich with these vs old ones. My theory is that atomization with poorly working 1000cc at low pressure were spraying huge (in comparions) droplets of fuel which had no chance to completely burn so I had to squirt more fuel than needed to reach proper AFRs. With original 298s, I went super rich after the swap indicating that fuel is burning more completely leaving very little oxygen so I had to subtract the fuel.

Also look at what real race cars are running, nobody does 3 or 4 bars, they run as high fpr as possible for the above mentioned benefits. Ofc TFSI is the real deal, there is nothing like squirting at 120bar