Fuel rail feed: y block vs tee

[Grimreaper]

Any insight or experience on pressure loss/ flow imbalance running a tee attached directly to one fuel rail vs y block feeding both? Ok or not ok to do? Expecting a system under pressure to flow bit different here.

Going to run dead headed with 10an from pump to rails. Was planning to y block to dual 8an to feed each rail in the rear with 6an balance tube across the front. A tee would simplify and shorten the fuel lines after the 10an feed though and clean up install. Would not be fed from the center of the tee, rather fed from one side.

Tee location and orientation in red.

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[WildHorse]

use whatever is most convenient. They flow rate is the same as long as the ID are the same.

 

[horsepower addiction]

this is for a non return fuel setup?

 

[Grimreaper]

this is for a non return fuel setup?

Yep planning radium hat with built in fpr so return stays in the tank.

 

[horsepower addiction]

well the fuel is making a complete loop around through both rail so i think it's going to be fine

 

[Angrey]

At pressures and flow rates associated with Ethanol or gasoline, you won't be able to measure the difference. A Y junction does have less head loss, but for the purposes of the fuel system, you won't notice a difference. Furthermore, different Y blocks and T blocks have different internal layouts so they're not all internally what you would imagine.

 

[illtal]

This is a dead head with a balance loop, I actually think just a Y block with a run to both rails would suffice.

The pressure is the same after the FPR in this kind of setup.

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