Fastbird

iTrader: (5)

AlkyIROC

Really? A 10AN feed line running the full length of the car? That's a lot of fuel to move from the back of the car up to the front especially during acceleration. An 8AN is more than enough unless you're making some 2500+ HP engine.

I use a 10 AN from the front mounted fuel tank to a belt driven pump and even then, the pump only has a 1/2" inlet and 3/8" outlet ports so there's only so much fuel that can be moved through the ports. Fuel line is about 2 feet long. From the pump a 6AN goes to a barrel valve to feed the 8 injectors through 3AN lines. Anything the engine doesn't want is fed back to the inlet side of the pump through another 6AN line. That's feeding an estimated 800 HP altitude corrected engine and running alcohol. I'm using about twice as much fuel as a gas engine does and my fuel lines provide more than enough fuel for the engine.

Fastbird

iTrader: (5)

AlkyIROC

OK but you may need to use a bigger pump also. Like I said, that's a lot of fuel to push from the back to the front under acceleration.

DIGGLER

iTrader: (1)

i had basically the identical setup. sumped stock tank with 2 1/2" ports tee'd into -10, which fed a filter, then pump, then another filter, and then i had a check valve. -10 ran the rest of the way to the front.

-8 return, and i had that going into the 3/8 line on top of the tank. my thought was the smaller 3/8 line size was only a few inches, so not that much of a restriction.
i used the stock return for a vent i think.

i was planning for a turbo setup with around 1k whp but never wound up getting it done. instead, it was a fairly mild 350 with nitrous.

articwhiteZ

iTrader: (56)

sounds like a fuel pump falling off. as the need for fuel is more then it can keep up with.. think of it like this...

fuel need is a leak... the more needed is a LARGER Hole in the line.. the larger hole in your fuel line..fuel pressure starts to fall off...its better to run rich..then lean..
a good pump and reg.. can go a long way to fixing some simple things..this pump runs a tad over $700 ea.. (summit) and is a bit over kill.. it fits 12AN lines and can keep the line presser at 70psi..(90psi in there adds) .. so if you want to run a garden hose to your feed.. with a return.. give it a shot...
..
There are other pumps out there..this is just an expel
https://www.summitracing.com/parts/aei-11102

DIGGLER

iTrader: (1)

a single a1000 would probably fill the need if its n/a. and really, like arctic said, i think i would give a new pump a shot before changing everything up to -10. i would think the -8 would be enough?

articwhiteZ

iTrader: (56)

check out the monster fuel reg with 10AN fittings...
https://www.summitracing.com/parts/aei-13134

also when doing all this fuel upgrades use a fire suppression system...as this stuff saves Cars Lives...

Drew

iTrader: (58)

Instead of trying to re-use the existing feed/return/vents in the stock sending unit, wouldn't it be easier to remove the sending unit and modify it for whatever you need? The tubes are just soldered into punched holes. Easy enough to remove the old tubes, use a tapered drift to enlarge the hole, and solder in a new line that fits your needs. Or fab a new insert and use a bulkhead fitting of some kind or other.

Fastbird

iTrader: (5)

izcain

Looking at doing this exact same thing Fastbird, Are you mounting it in front of the radiator or mounting a smaller radiator and mounting them side by side?

Was wondering if they (nhra) would squak at me having on in front of the radiator beneath the nose.

Fastbird

iTrader: (5)

I'll post pics once its finished.

Chassis guy is going to remove the front bumper and nose support system, fabricate a 3 gallon cell in front of the radiator, build a safety structure around it and then make a skeleton out of small diameter chromoly to support the nose cone and tie the frame horns together.