blu00rdstr

I'm considering setting up dual fuel pumps.

I bought a new Walbro 255lph pump, I would like to set that up as the main pump. The old Walbro pump I'll hook to the boost-a-pump, and run two fuel hoses to the rails (with filters and checkvalves). The old metal line I'll use as a return line. I'll either use a '98 fuel rail and regulator or I'd need to buy aftermarket rails.

Has this been done before? Any lessons learned with this plan?

Hool97

Good thought,

Skunkworks

Very similar to APS system. Two pumps running with two lines going to fuel rails (each has regulator). Then two rails are balanced with a cross over line (or connects both rails together).

Not sure if it's released though.


Mike

c5wolf

aps kit not ready yet.your idea seems good

RJW

Here's as link to a tt guy in Jeddah who did it on the cheap. If you plan carefully and understand what the vaiables are, you can save a lot of $$$

Plus there are some here that will help and answer your questions

http://forums.corvetteforum.com/show....php?t=1769487

Understand FIRST then proceed.

There are many others that have done this stuff as well, so I guess that the lesson learned is that if you understand how it needs to be , then you save money. If not, then you pay the piper.

btw: you can probably get away with one regulator...boost referenced works well

Good luck with it.



rjw

95BlueBomber

Do a search under my posts. I have one for sale and another post of the latest setup I made.

blu00rdstr

Thanks! Since I'm playing with flammables I am thinking twice. I have a bit of time since I just recruited Robert at Advanced Dyno to build a new LS2 forged shortblock for me (with Diamond custom boost pistons). It's nice to use an S.F. bay area shop that both builds engines and can do the dyno. It also means the fuel upgrade results will have supervision.

After looking at the tanks I'll put the new pump in the passenger side tank and leave the drivers tank as is but for the return line line and new fuel line. I can simplify the dual hoses to one 1/2" (-10AN) line and a distribution block. Pretty much all that's left is to get a fuel regulator (price goes up though with -10AN input).

Not sure why others are putting both pumps in one tank, it would seem to generate more heat. Is it just fewer tanks modified?

I think a single bigger line is cleaner than dual hoses, any reason to run two hoses?

I noticed there were no check valves in the thread you referenced. I believe at least one would be needed for the part-time pump.

MIKE-C5

Call ECS

peter pan

What do those guys have at ECS Ya, you got there fuel system and it does rock

blu00rdstr

No, I have more time than money. Fuel pump - $80, hoses $100, checkvalve $40, and fuel pressure regulator $120. A little thinking and $340 is better than $1,500-$1,800. Figuring it out and working on it is a hobby, why pay someone to do my hobby for me?

RJW

Cause you get the t shirt?

0Vette Stripes

AVB

Just know for sure how the transfer works between the two tanks. I'm sure Robert isn't going to do something without understanding this but you'll get close to $1500 if it isn't right the first time.


Arnel

Warp Factor

Others pump from the driver side tank because it always has the most fuel. When the gas gauge shows 1/2 or less, the passenger tank is empty.

Rkreigh

I've been using the dual pumpers for years on the turbo buicks and I only have one concern, when the secondary pump fails, the car leans out and goes boom.

is there a single intank (quiet) that will support over 800 rwhp???

I think aeromotive might have something. if that one pump goes, the car stops, but keeping one BIG pump cool and having it running all the time can be an issue. I would update to a "return style" fuel system on my 2003 with a better regulator and run one big pump all the time, but it has to be intank for me.

I currently have a racetronix 255 with a BAP and alchy, and I think I'm a bit marginal for the big HP, but it seems to be working at below the 800 rwhp level (which is plenty for me)

blu00rdstr

What if the one big pump fails?

Here's a big pump:
http://www.magnumforce.com/magnaflow...ection%20Pumps



Engine Horsepower Range: up to 2,000+*
Rail Pressure: 20 to 120 psi
12.5V Amp Draw: 10A @ 20 psi, 22.5A @100 psi
MAGMP-4701
Pro Star 600 EFI pump
Price: $850.00

RJW

Not big enough....need BIGGER

Rkreigh

the theory is, when the one big pump quits so does the car

that is one big pump!!! bet it sounds like a chain saw

SpeedyD

these prices look good on paper, I assure you byt the time you are done it will be much more. I did the same thing with putting together my fuel sytem, the fittings alone, after ordering several I though t would work and didn't cost me a couple hundred!! Aeromotive fittings aren't cheap and neither is Summit's shipping/handling fees!! 1 $10 fitting cost me $50 to have it the next day, and then it turned out to be the wrong one!!! Good Luck and I hope it all works out for you!!
Dan

NICK YOSKIN

not sure why more people dont do daul intank???
its easy and cheap.
just make sure that u use FI hose and that is sumergable..