Fuel System Capable Of 800awhp?

[Sayajin]

Okay. I am in a bit of a predicament. Figure the good old UK guys could help me out!

Anyway, I am currently in the process of a COMPLETE engine rebuild after my motor saw fit to spin a bearing. Doing a complete upgrade of ALL internals.

Anyway, my motor is being built to handle 1000+ WHP. However I am shooting for a modest 800AWHP.

I have essentially worked out all of the specifics of my build with the exception of the fuel system. That part has me stumped. I need a fuel system capable of handling 800AWHP. Intially I will be looking at about 600-650AWHP until I upgrade my turbos some more, however I want to do it right the first time around.

I know there are a number of different options, but I cant figure out what would work best. Obviously an in tank system is not an option. I know I will need some type of multiple pump external system but what?

Any help on what the ideal fuel system to power an 800AWHP street driven GTR33 would be greatly appreciated.

-Sayajin

[raz0r$harP.UK]

Surge + 2 044s.

[Beer Baron]

ok, if it were my system it would be like this.

standard pump, or small bosch pump in tank. feeding large surge tank in boot. then twin high flow, low restriction filters before heading to twin 044s feeding each end of a large bore fuel rail (with a Sard RJ reg mounted on the return from the middle of the rail) running 1000cc injectors. I would advise upgrading or at least replacing the fuel lines thoughout (ie big return will be needed).

enjoy that's a simple system, and proven to work for your power level.

[Omurru]

I agree with Beer Baron although I wouldn't be using a Sard fuel reg, I thought these were only rated to 600Hp. Something like an SX or Aeromotive Reg would be a better option. I am building a fuel system for 600Hp atw. Will be using standard gtr pump as a lift pump to a 1.7L surge tank, then an 044 and an SX Fuel Filter will be -8 lines from the surge tank to the engine bay where it will split to two -6 lines which will feed into each end of a modified stock rail with a -6 or -8 return in the middle (not sure on this yet need to find out if a -6 will be enough) to an aeromotive 1000hp pressure reg. oh and 700cc SARD injectors. Will use solid lines under the car and braided teflon lines in the boot and engine bay. If you use teflon lines you won't get any fumes in the bay or boot but they are a little more expensive

Hopefully the tank, pump and filter will sit up behind the rear seats on the battery shelf so it's all out of sight

[Omurru]

oh and i'll direct wire both the pumps to the battery too. There's a thread in the DIY section about how to do this....

[tacker]

check out the pic's

http://www.skylinesaustralia.com/forums/in...howtopic=121344

[R31Nismoid]

I agree with Beer Baron although I wouldn't be using a Sard fuel reg, I thought these were only rated to 600Hp. Something like an SX or Aeromotive Reg would be a better option. I am building a fuel system for 600Hp atw. Will be using standard gtr pump as a lift pump to a 1.7L surge tank, then an 044 and an SX Fuel Filter will be -8 lines from the surge tank to the engine bay where it will split to two -6 lines which will feed into each end of a modified stock rail with a -6 or -8 return in the middle (not sure on this yet need to find out if a -6 will be enough) to an aeromotive 1000hp pressure reg. oh and 700cc SARD injectors. Will use solid lines under the car and braided teflon lines in the boot and engine bay. If you use teflon lines you won't get any fumes in the bay or boot but they are a little more expensive

Hopefully the tank, pump and filter will sit up behind the rear seats on the battery shelf so it's all out of sight

You'll be right with the stock fuel lines.

They seem to be adequate when a good number of GTR's are using them currently around your target (440rwkw)

Just seems to be the rail that most people have a bit of a mod too as you've already covered off

And what Beer Baron said, agreed

600rwkw isnt an easy task to keep reliable, best of luck with it all.

[CruiseLiner]

i got a fuel setup for around 850-900awhp and that is a bosch 040 intank pump feeding to a 3L surge tank which runs into twin fuel filters before going to twin bosch 044 pumps then a Ypiece and dash 8 (1/2') single feed line to the front and then into a Y piece with twin -6 lines (3/8') into a sard dual feed fuel rail with sard 1000cc injectors and return is single dash 6 (3/8') into a sard regulator and returns to surge tank with dash 6 (3/8') line.

gotta love the humming of 3 bosch pumps all at once lol

Edited February 8, 2007 by CruiseLiner

[Sayajin]

Thanks guys. Sounds like I have what I need for my setup.

So I should be alright keeping the stock fuel lines as long as I get a new fuel rail and modify that slightly correct?

My next question is about sound dampening. As I said intially this will be a street driven car, I dont want to have the hum of my pump drowning out my conversation! LOL.

Any suggestions on limiting the amount of sound produced from these setups?

-Sayajin

[CruiseLiner]

rubber mount all the pumps and i put mine under the rear of the car rather than in the boot (its a stagea so i had plenty of room under the car behind the fuel tank). no fumes and less noise

[Craved]

i'll be boxing my setup ( 1.5L surge - 044 - std lift pump ) as its sitting under the parcel shelf in the r33 replacing the battery.

atm its noisy even with a rubber mounted bracket from motorsport connections and teh fuel fumes are damn strong without it.

i'll just cover the rear/side/top of the enclosure with a foam of some description to reduce the noise. Front will be perspex.

just my idea

[T04GTR]

my choice is the sard twin pump surge tank. (2 044s) inside.

mounted in the boot. using solid lines. (alloy tube) no smell at all.

they come with -6 fittings on them.

[Sayajin]

Cost and availability?

-Sayajin