didnt now where to put this, here of in FI, so here it goes

i wanna build a turbo setup, and i want to be somewhere about 600 rwhp.

i know i could use stock likes and the such but i want room to grow so here is my question..

ive seen stock rails modded to use AN fittings, and this is what i want to do, how do you mod the rails to use the AN fittings?

and should i use dual intake walbros? like the lonnies setup? ive read those are good to over 1000hp, or should i use an a1000 pump ?

since i want room to grow to possibly something like 750ish hp, should i use -10 feed and say -8 return line?

if i go with the a1000 pump id like to sump the stock tank, but if i use the dual intake setup, how do i connect the -10 line to the stock feed line out of the sender?

i know alot of questions, any help is appriciated thanks guys!!

 

There's been a bunch of posts about this and some have pictures, too.
I don't think it makes any sense to connect two pumps to the stock line coming out of the sender cause it's tapered down to 5/16's inside the tank, so I think you should modify that somehow. Those lines are soldered in there and can be unsoldered and replaced with larger lines. I made two 3/8 lines coming out with AN hard line adapters to two -6 lines to a Y and then onto the filter, then -8 to another Y then to the rails. But you could use any variation of that and still have gobs of fuel capability. The rails are usually modified for dual feed and dual return although some guys still have them hooked up in series. Generally you can go -8 in and -6 out to the regulator and -6 or whatever back to the tank.
If you want to sump the tank and go that way, then that is pretty standard how to do it - been done a million times, just be aware that the A1000 is a noisy mf and you will have to listen to it when it's running.

 

i dont know weather to sump the tank and go a1000 or do dual 255s in the tank? i want to be able to go up to 750rwhp in the future, and i dont want to skimp here...

if i go intake pumps, how do you attach the AN stuff? im new to the an fittings and have never used them, and am not sure how you would attach them to the hard line from the sending unit

would -8 feed be enought for what i want? and -6 return?

mostly i want to know how you attach the lines to the rails, like which fittings to use?

do you feed the front of the rail and return from the rear?

thanks for the help man

 

You can get some AN adapters to the fuel lines which snap on like the fuel lines do and you use them in series that way, but the only real way to put AN fittings on the fuel rails is to tig weld them. You could do them either way front to back but I did -8 straight at the back and -6 90 degrees at the front. -8 will move a lot of fuel and anything bigger is probably counterproductive due to the mass of the fuel and the fact that that is a LOT of fuel. When you sump the tank, you start off with a big -10 line to the first filter so you don't drop pressure since you are sucking fuel from the tank through the filter there, but it's not really necessary with the twin intank pumps which push the fuel.

 

so for my goals should i use the a1000 or do dual intank 255's?

 

Lonnie's Performance's setup has been proven to support over 1000 hp with the stock lines. The fuel nipple on the Walbro is 5/16.
AFA the output line of the stock tank fitting, while it is true it starts at 5/16, you can cut off the first bit of it and it will be 3/8.
So if you want to roll your own dual pump setup, you need a Y or a T fitting with two 5/16 inputs and a 3/8 output.

 

I don't get why anyone would build a no-compromises 1000 hp engine and all the stuff to go with it, then get all hung up on having to run stock fuel lines with all their restrictive little fittings. They can support a gob of power, but I think there's a point at which you just build the thing properly for what you are doing and not rely on mail ordering your drop-in sender and call it a day. It's not that hard to build the system the way you want it just because less works. Not like your car is going to ever be close to stock when you have 1000 horsepower...

 

Either will work - do it how you want. Maybe piece it all out and compare the cost for starters. Cost of all those parts and fittings adds up quick. I would guess that is the best argument for keeping some of the stock parts. lines, etc, but at 600 rwhp on a turbo car, it may be borderline so you would have to test it and make sure you are comfortable with that. The dual in-tank is popular and it's quiet. A1000 external setup is going to be louder like I said. Maybe find someone at a car show who has one and see if he will turn it on for you and see if you can live with it that way. My buddy has one on his 3000GT and I can't stand it buzzing away all the time. His car is totally obnoxious in every other way, though so it doesn't really matter..

 

i think im going to go with the dual 255s, -8an feed, and parallel rails, anymore into or pics on doing the rails this way? which fittings will i need to get welded to the rails? thanks guys