High HP Fuel Line Setup -6an enough?

[scratchgolf135]

For these cars pushing 800whp, what fuel line setup are most running? Yea I know you'd need an adjustable FPR but are they still just running a -6an single fuel line from the tank? From past experience that seems a bit small to handle that power. I will be running a 450 and 525 with a BPM4 but can't grasp the ideal fuel line config.

[iminhell1]

I went -8 because that's what math said I should need, on E85.
The shit of it is unless you want to spend big money and redo ALL the fuel components the bigger line is still restricted by the smallest fitting; the outlet at the regulator/filter assy. The Radium assy will allow full -8, but $$$ and it needs modifying to fit the 135 tank.
So that 5/16" fitting is my single restriction. Everything up to my HPFP's is -8 otherwise.

I also drilled out the fuel rail.

I could not find a fitting setup that would clear the retaining ring without straining the dick. So I'm going to try this. The gates powergrips can hold airbrake line so I don't foresee any issue holding fuel line.

[scratchgolf135]

Originally Posted by iminhell1

I went -8 because that's what math said I should need, on E85.
The shit of it is unless you want to spend big money and redo ALL the fuel components the bigger line is still restricted by the smallest fitting; the outlet at the regulator/filter assy. The Radium assy will allow full -8, but $$$ and it needs modifying to fit the 135 tank.
So that 5/16" fitting is my single restriction. Everything up to my HPFP's is -8 otherwise.

I also drilled out the fuel rail.

I could not find a fitting setup that would clear the retaining ring without straining the dick. So I'm going to try this. The gates powergrips can hold airbrake line so I don't foresee any issue holding fuel line.

Nice, thanks! I have the PFS Pod and it comes with a really nice fuel rail with larger orifices and a center fed inlet so I'm happy with that. I will be running DI only for low boost map and will have PI for high boost but the fuel lines are a concern. I am considering the EOS billet setup since it allows for -8 but $$$ so I'm still not sure on that.

[Petro135]

I use a 6an hose from regulator to this filter and ethanol sensor. I changed the filter inside to 10micron. And then run up to the T for bmp PI setup and to hpfp. All in around $200 piecing it together and making my own ptfe 6an lines. I'm also running full e85 but I'm sure im not making as much power as Iminhell1 . Btw where that filter was in that pic it scared me hanging pretty low. I've since moved it up a little. I just got that regulator in the pic. I've not put it in yet since I don't have any fittings left I gotta buy another few for that and other projects

[Petro135]

Not sure why that pic is upside down lol