I'm curious on what's the most power the stock feed (3/8) and return (5/16) will support?

I will be running 2000cc injectors. 1 Walbro 416 pump. Aeromotive regulator on e85 fuel.

Wanted a idea on what this fuel set up would max out at. Thanks.

 

Ran across this - might help you out.
Fuel Line Sizing | Blowerworks.biz

 

My buddy made about 660whp on e85

 

What was the fuel set up?

 

Think the most made on stock lines was about 800 on ethanol. Walbro 450 in tank and Bosch 044 inline on id2000's

 

According to the article, the strength of the fuel pump is the limiting factor up until a point.
1000+ hp on stock lines with the correct pump selection >shrug< just reading.

Change the lines to make it easier on the pump.

 

Does the Civic Del Sol have smaller fuel lines than an Integra? (I think it does) My friend ran into a wall around 450hp on E85 with stock lines on his Del Sol. Couldnt maintain fuel pressure with a Walbro 400lph, Ev14 1600cc. Replaced FPR, eventually upgraded lines and smooth sailing.

 

I have a friend that made 630whp on stock civic lines/walbro 255lph/can't remember injector size(maybe 950-1000cc's) using c16. 2,000cc ' s wasn't around back then when he did this, or at least we didn't know about them...

 

There's quite a few s2000's that are at the 700whp level on e85 with stock likes with a Waldron 400 and 2000cc injectors

 

62mm B series car went 791whp(Dynojet STD) on Ignite Red which is considered E90 before i saw it leaning out. This was on the walbro 416 in tank, bosch 044 inline and grams 2000's with the base pressure cranked way high.

 

I've tuned a friend of mine's car on stock lines using e85 ID2000 450lph and made 619whp. Pump couldn't keep up in the higher rpm range.

 

My fuel pressure started dropping at around 530whp with the following:

Stock Lines
Aeromotive 340lph in tank
stock regulator
1200cc injectors

Just upgraded to:
Full Blown Dual in-tank pumps
Dual aeromotive 340lph with individual relays & #10 wire
-10 Feed line
-6 return
Aeromotive A1000 regulator
same 1200cc injectors

looking to push 600+WHP