Fuel system for 700whp

[SupraClaou]

I got new parts for my fuel system:

# Sard top feed fuel rail
# Sard 800cc high impedance injectors
(got a jdm 2jz with no resistor pack)
# twin GS341 255lt/h HP Walbro pumps

Fuel lines :
----------------------------------------------------------
# Custom fuel tank hanger with one -AN8 feed line till the firewall....
# Then goes an -8AN inline 'Earls' high performance fuel filter...
# After the fuel filter goes a ' Y ' splitter (-8AN inlet ----> Two -6AN outlets) for
the two -AN6 feed lines for the fuel rail.
# From the fuel rail goes a -6AN line to the Aeromotive FPR
# And last,from a -6AN port on the AFPR goes the stock (low pressure) return
line back to the fuel tank.

My question is: Will this system support 600 whp on pump gas...and
700+ whp on race (C16) gas?

Things I could change over my fuel setup if I have to:
Two 260 lt/h Sard (intank pumps) instead of two walbros...
-10AN feed line from the tank to the Y splitter instead of -8AN feed line

Please do post your thoughts...:sarcasm:

 

[Supraholics]

Keeping in mind that you are installing everything the right way and using the proper components, looks like you have a system that is good for 1000+HP with only your injectors as a limiting factor. Your fuel system should handle your HP goals.

My setup is very similar, but I'm shooting for about 100HP less than you.

 

[10secdream]

You could also just use the factory hardline and install an addition -6 line to the rail if you wish?

 

[blackkarma]

looks good 2 me ive a similar setup but im running 880 injectors. i am looking at 1000cc or 1200cc, though ive been told that i shouldnt have to much problem making it with my 880's.

 

[SupraClaou]

You could also just use the factory hardline and install an addition -6 line to the rail if you wish?

How big is the factory hard line? -4AN?

 

[Turbo Drifter]

How big is the factory hard line? -4AN?

Its about the same size as a -6 line.

 

[pbasil1]

Looks great. If you change anything it should be the FPR and -6an lines to a full 8AN through out. But again, for 600-700 whp, thats a beefy system.

Its about the same size as a -6 line.

Its actually a -5AN (7/16") hard line.

 

[SupraClaou]

Thanks for the infos guys...

 

[SupraClaou]

Looks great. If you change anything it should be the FPR and -6an lines to a full 8AN through out. But again, for 600-700 whp, thats a beefy system.

Its actually a -5AN (7/16") hard line.

You mean one -8AN feed line..to the fuel rail,and split it into 2 feed lines?
Or two -8AN feed lines to the rail?
Or you are talking about the return line...?

How big is the oem return line? -5AN?

 

[IJ.]

For 500rwhp as a bare minimum I run

2 x Aeromotive Tsunami pumps
Aeromotive AFPR
2 x Bosch MS filters
2 x -6 fuel lines
1 x -6 return.

 

[Supraholics]

Another thing I forgot to mention was that you should place the filter as close to the pumps as possible.

 

[soapra]

For 500rwhp as a bare minimum I run

2 x Aeromotive Tsunami pumps
Aeromotive AFPR
2 x Bosch MS filters
2 x -6 fuel lines
1 x -6 return.

+1 :icon_bigg

Or change pumps to two bosch pumps. In tank pumps suck.

Here is a pic of the popular fuel pumps that are used in Supras today.

 

[IJ.]

LOL funny you suggest an ext pump then post a pic of an 040 in tank Bosch

I couldn't live with the Coffee Grinder Bosch pumps I was running as my car is so quiet they seemed MUCH louder than I wanted, swapped in the AeroMotives and while better they were still noisy so I ended up PWMing pump #1 as slow as it would go and still maintain the idle pressure I needed then had pump #2 kick in on boost.

My "point" is think of what you need in a fuel system and pretty well double it as there's NO ROOM for error once you start pushing a turbo engine hard it will melt in milliseconds if leaned out on the top end.

 

[Doward]

Ian, that's the Bosch 044 pump - lots of guys mount it external

Here's the system I'm a big fan of up to 600-700hp:

MKIV Denso pump in the tank running to a surge tank, with an external 044 supplying the real pressure to the fuel rail

 

[IJ.]

DOH so it is couldn't see the bottom fitting DOH
(040 is identical just with a screen on the bottom)

 

[soapra]

DOH so it is couldn't see the bottom fitting DOH
(040 is identical just with a screen on the bottom)

HEHEHE nice one.

 

[IJ.]

You and your deceptive hiding the fitting camera angles

 

[soapra]

Next time I will just take pics of all the angles. speaking of bosch 044 pumps, I want a dual pump holder that I see for sale always on ebay. What do you think of those IJ?

 

[IJ.]

Got a link or a pic?

 

[soapra]

I think they make a dual pump bracket, but all i can find is the single pump.
http://cgi.ebay.com/BOSCH-044-910-0...ms=65%3A12|66:2|39:1|72:1171|293:1|294:50