Outer Limits 4x4 Board

gday guys
what fuel pump should i use when i fit the g16a EFI into my mg410??
what pressure do i need??
is rotary better than pulse??
thanks in advance

The approach i took was that it was cheaper to source and purchase a Vitara EFI fuel tank (which includes a fuel pump) and install that then it was to get a pump, surge tank etc...

Perhaps that's an option worth checking out.

I had a look through this.

Have a look at using the original fuel pump to prime a surge tank (good for angles) and then run a bosch high pressure pump (something like from a ea/eb falc or a cordia turbo one i know would work.

Surge tank is about $140 prof made from places like formaz and the likes.

Otherwise maybe souce a vitara tank?

cheers

Nic

why do i need a surge tank, where in the line does it go, do i need two pumps???

Badooky wrote:why do i need a surge tank, where in the line does it go, do i need two pumps???

As i understand it, if you go the EFI Vitara tank then everything is cool. However, if you just use your normal sierra tank (that has no pump in it), then you need a "lift" pump that takes fuel into a "surge tank" from where it is then pumped* into the engine.

* - i don't know if this process requires another pump though?

p.s. my EFI tank was $300 + shipping... i suggest you do your sums before you start with either option.

Badooky wrote:why do i need a surge tank, where in the line does it go, do i need two pumps???

A surge tank is not full of russions named surge .. it's an inline tank usually about (very rough) 20 to 30 cm tall and 10 to 15 cm across full of fuel .. basically it makes sure that the high pressue fule pump has fuel at all times to make sure the motor has fuel (In a 4x4 it comes into play on crazy angles etc .. in race cars they have em for hard cornering)

well an't this a real ricer subject.

Like love_mud put it the surge tank is so you have a constant high pressure. The deal with the pump is that you only need one if it supplies enough fuel. What your forgetting is with the high pressure you then have to bring it back to the right pressure for your engin using a fuel regulator. Your not running a street machine with a fivth injector so I don't think that much pressure is needed.

Like greg said chase the original down to save time and money. Or a pump from some sort of turbo (usually have high pressure to suit the extra fuel needed on boost.)

Only go the surge tank/pump if you desire a boot full of bling

thanks guys clear as mud nah i think i get it
anyone in WA got an EFI tank for sale??

I have a bosch efi pump from a skyline with the full assembly and and everything got a bit of stainless pipe and made a base and a flange to match the skyline assembly, and a small repco pump for the feeder.

Try Suzukishop in cannington, I think he usually has some laying around.

Nic

I have a Bosch HP pump. I've been told by a FI specialist that these should be gravity fed with a 1/2" line (they have a 1/2" inlet).

I currently have mine connected to the stock tank outlet (which comes out of the top of the tank) but the pickup is at the bottom of the tank. I mounted the pump lower than that point and have had no problems. I have to keep the tank topped up though

Eventually i'd like to make a new tank with a built in surge tank/swirl pot/whatever, just to keep the plumbing down to a minimum.

I just run a Bosch VN commodore pump that is gravity fed works fine.
SAM

Ditto on the VN pump to supply the 4A-GE