Lets Build a Fuel System

[ZeroChad]

So I'm looking at designing/buying my fuel system for my turbo build next. I'm for sure needing a fuel cell since I drilled into my gas tank by accident . Here is what I envision. Fuel Cell to inline filter to inline pump to main fuel line to Rail to 1:1 FPR to return line.

The requirements of the system will be:

• Fuel: e85
  Max HP: 500
  Max Boost: 25psi

Fuel Cell - I'm looking at this one right now LINK. I like the fact that it has the connections on the top instead of below the mounting points. The -8AN seem to be a pretty standard size to work with. The 12gallons is perfect too, as are the dimensions.


Filter -This really isn't a big deal. Mostly dependent on whatever size line I'm using.

Pump - I'm a little unsure here. I don't have any experience with how much hp a given flow rate will support. I'll probably want something capable of 75-80psi? That way I have some room to raise pressure with boost.

Line - This'll probaly wait till other components are picked out.

Fuel rail - I have no problem using my stock rail with schrader valve on the end if It'll flow okay. I'm just unsure about what fittings I would need. Do they even make fittings to attach at the stock line end? IIRC aftermarket ones like LFS don't work with the magnum intake.

Injectors - Just curious what size I'll be looking at. I'll be using my Stg 0s for now until I actually install my turbo.

1:1 FPR - Any one have any experience with these? I don't want to spend a fortune, but I'd like something that actually works.

Any help in picking out components would be great. I have no experience with -AN fuel line fittings or if I'll need any tools for them?

[esteinmaier]

Hmm... There's the awesome way, and then there's the way that will work.


Filter: Just get something that is compatible with e85 and is rebuildable. The size fuel injectors you will need won't get clogged easily with very small particles.

Pump: Bosch 044 would be on the small end, but more likely you will want an Aeromotive A1000.

Line: At least a -8 up to the rail, and then a -6 return. Nothing wrong with using hard lines though, so you may want to do that instead of spending a small fortune on braided line that will just get beat up under the car anyway.

Rail: Anything big enough. SRT4 and SOHC are the same bolt pattern, so the possibilities are endless. You need to make sure you can tie the -8 line right to it.

Injectors, you will need to go big. 1200cc *might* be enough. the 160lb bosch injectors are plenty big, but are tough to idle. The Moran 235s or the ID2000s are going to be ideal, but neither are cheap. Either one will cost close to 1k. It's still cheaper than doing 8 injectors though.

1:1, whatever works. I use an Aeromotive, and I've never had so much as a hiccup. It flows well enough to keep the pressures coming from my Weldon in check.

[occasional demons]

Unless it is strictly track driven, I wouldn't want the fuel cell inside the car either.

Maybe I'm just a little paranoid about having that much potential inside the car. Not so much when it is full, but near empty. Too many variables on the public roadways for me.

[ZeroChad]

Thanks for the input! Yeah, there's definitely a lot of room to dump money into this setup if I wanted to. Those two pumps help. That's probably the area were I should put the most money.

Bill, I'll probably weld in a rear firewall when I get everything installed. Either way though, it'll be better than what's going on now .

[occasional demons]

Don't forget to weld it behind the speaker holes. (If they are being retained) lol

[Adionik]

My friends right around 500whp. GT35R on 35psi with 1600cc injectors running E85...tuning those injectors is such a fucking pain in the ass that he's virtually NEVER had the car running right because of them. Even with a driver box, tons of rescales...blah blah.

I'm still curious of the injector dynamic 1000's...

[esteinmaier]

The 1600s have a goofy little dip in the flow around 1.3-1.5ms. IDs do not:

http://www.injectordynamics.com/ID1000.html

So buy them from me. They are amazing.

[ZeroChad]

I'm really starting to like the Bosch 044.

[esteinmaier]

the bosch really does do a good job at high pressures but I prefer to keep pressures down myself. injectors open faster and more precisely when they don't have to open against such high pressures, and fuel pumps flow better at lower pressure.