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Removing the stock regulator from the hanger assembly, showing it to suppliers, none of them are able to provide a replacement regulator in the same packaging that provides 58 psi and 250 lph flow.
The best they said they could do was 3 bar, 44 psi and 190 lph flow.
Sure, perhaps that is actually enough to still work in our application and yes, awesome that you're able to make it work in your application without issue. Not arguing with you there.
It's just my ocd that tells me no amount of oversized pump within the stock assembly could overcome the limitations of a stock regulator so instead of trying to fight it, considering I'm making a new tank anyway, and considering you can get an entirely new assembly with pump and built in regulator to suit for $250 then why not just remove all doubt and replace the whole damn thing. In the future if something of it fails, it will be easy enough to pop the tank access hole under the seat and just replace the whole unit again quite easily and cheaply.
A number of us also go to the extent of installing surge tanks with high capacity pumps that can meet the instantaneous fuel needs of the LS, and I'm confident some of that decision is likely because of the limitations of the stock regulator built into the hanger not being able to supply 4 bar at a high flow rate. I don't want to have a surge tank elsewhere in my car, so as I am fabricating a whole new tank, why not, right from the outset, gift it with a fuel pump assembly that is totally fit for purpose. If I design the baffles correctly and perhaps also load it with some foam, I should surely be making a great effort towards solving the fuel supply piece of the puzzle and be making something that performs just as well as any aftermarket surge tank stapled in to the stock tank setup can.
Anyway that's my thought process. I'm probably wrong. And probably wasting money. But that's the way I'd like to tackle it. And as I am currently working on my pwm radiator fan controller solution, I thought "hmmm I better do the fuel pump too at the same time" because hey its basically the same thing just in a different part of the car and for a slightly different use.
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