If you're making big HP, please look here

Topic: If you're making big HP, please look here (Read 1722 times) previous topic - next topic

If you're making big HP, please look here

March 08, 2009, 06:39:01 PM

Time to build the fuel system (tank, lines, return lines, filter etc). What have you done?

Three things:
A little bird told me that at a certain point, the stock tank will cause problems when moving a lot of fuel. T/F?
This will not be a drag-race-only setup so a rear sump probably isn't going to be sufficient.
Not having to listen to a noisy fuel pump would be nice.

If you're making big HP, please look here

Reply #1 – March 09, 2009, 02:19:44 PM

do some searching over on turbo ford they got tons of info about up grading the fuel system. From what I remember the metal lines in the sender holder need to be increased at some point to keep enough fuel that along with a good walbro pump sounds the norm

If you're making big HP, please look here

Reply #2 – March 09, 2009, 02:51:55 PM

How much power are we talking here?

If you're making big HP, please look here

Reply #3 – March 09, 2009, 10:20:30 PM

TF has lots of good info, but. They tend to be stuck in ultra cheap mode and usually think in terms of Mustangs only.

I'm building the car for 600. Not saying that's what the final will be, but it is the hard ceiling.

I was thinking about using the feed and return lines both as return lines, using the Mustang Stealth tank concept but putting it on the passenger side instead of the in the center rear, keeping the pickup in the same location by running a line from the filter to the sump. Imagine this at the back right of the tank:

http://www.jegs.com/images/photos/0/027/027-StealthFS.gif

I don't really know anything about fuel systems, so don't know if that will work. I want it to be quiet and work flawlessly. I'll be pushing the envelope so it's got to be reliable.

If you're making big HP, please look here

Reply #4 – March 09, 2009, 10:24:23 PM

Need a HP estimate either flywheel or rear wheel and appliction??

If you're making big HP, please look here

Reply #5 – March 09, 2009, 10:48:56 PM

RWHP. Road racing, autox, speed events eg Silver State, BBORR etc

If you're making big HP, please look here

Reply #6 – March 09, 2009, 11:13:14 PM

Quote from: 5.8fastcat;260444

Need a HP estimate either flywheel or rear wheel and appliction??

Think he is still Turbo 4

If you're making big HP, please look here

Reply #7 – March 09, 2009, 11:27:45 PM

I would run a -8 supply line and a -6 return. Summit makes a nice
soft aluim line that works well.

Mount an extenal pump with some rubber cushions on the feet with
nylocking muts and it will be quite.

Will need a set of aftermarket fuel rails and regulator.

If you're making big HP, please look here

Reply #8 – March 10, 2009, 11:59:30 AM

Okay, thanks for the info.

If you're making big HP, please look here

Reply #9 – March 16, 2009, 05:49:17 AM

I think that I have most likely added the craziest fuel system on the board, and let me tell you 5.8 fast cat has got the right idea. Are you doing this as cost is no object or do you want some normality in price? If you buy the entire fuel system that is available it will most likely save you tons of cash. I do not know when fast cat put his system together but there was no available systems when I did this in '02. There are many ways to skin a cat, at those power levels there are not many options. My fuel system is not very loud, but I use 2 pumps to support the motor and a nitrous system. When both are running there is "some" amount of noise, but not as bad as a carbed system pump. You can build a decent system of -8 feed line and cheap alum line for return. There is not much pressure on the return side. Sumping the tank is your only option if you are going to be turning corners at high speed...Get the Kit!!!!

Wait is this a turbo 4 or V8...if it is a turbo 4 there may be even more leeway on how big the lines are vs hp levels. You could get away with a smaller, cheaper line and fuel system if it is a turbo 4.

If you're making big HP, please look here

Reply #10 – March 16, 2009, 09:31:02 AM

Quote from: Lightningbird;261869

.if it is a turbo 4 there may be even more leeway on how big the lines are vs hp levels. You could get away with a smaller, cheaper line and fuel system if it is a turbo 4.

How do you figure?

Both motors -- assuming equal or near equal power levels -- will require different amounts of fuel.... The BSFC of the 4 will be higher. Heck the 88 LPH pump has a much harder time supplying a turbo 4 180-190 HP turbo 4 than it does a 225 HP 5.0...

If you're making big HP, please look here

Reply #11 – March 16, 2009, 07:03:12 PM

I am running twin external 255 pumps. Very quiet.

If you're making big HP, please look here

Reply #12 – March 18, 2009, 06:20:38 PM

Quote from: thundr306;261989

I am running twin external 255 pumps. Very quiet.

Parallel or in-line? What about return lines?

If you're making big HP, please look here

Reply #13 – March 18, 2009, 07:10:25 PM

Quote from: V8Demon;261889

How do you figure?

Both motors -- assuming equal or near equal power levels -- will require different amounts of fuel.... The BSFC of the 4 will be higher. Heck the 88 LPH pump has a much harder time supplying a turbo 4 180-190 HP turbo 4 than it does a 225 HP 5.0...

fuel demands on each motor are different. the turbo 4 cyl runs 25-35psi injectors, under boost on my merkur(same engine as a TC) fuel pressure went into the low 60's, injectors on the bird are ~19lb injectors(stock). pressure really has nothing to do with it..... its volume that is what u need, yet u still need pressure for spray pattern. i dont know if your going to be boosted or not, if you are boosted you need a bigger pump than if your n/a

If you're making big HP, please look here

Reply #14 – March 18, 2009, 07:39:28 PM

Quote from: t3skidoo;262392

Parallel or in-line? What about return lines?

They are parallel. -10an feed to the filter, splits to two -6an feeds for the pumps and up to each fuel rail. Single -6an return. Supposedly good to 950hp...lol.