Outer Limits 4x4 Board

hey
i'm after some pics of what others have done when fitting a surge tank in there sierra swb.

im after a pic of it in the car thanks

Why do you need one? I've never seen an efi car with a factory efi tank in it starve of fuel at ANY angle, but I've seen plenty of bulky, noisy, smelly and unreliable surge tank setups. They are questionably legal, and will either put a lot of vulnerable stuff under your car or dump it in your load area.

In tank pumps rule. Surge tanks are a pita in a sierras

just my 2c.

Steve

If its in a sierra fit a swb vitara efi tank. This leaves room for an exhaust down the side and about 50L capacity if you mount it hard to the drivers side.

If you need more flow than a vitara intank pump can provide a walbro GSS-342 flows 500hp and fits into the vitara intank pump assembly. This is what I am running in the 20v 4age and on its first run on the weekend just gone it had no fuel delivery related issues at all.

i need the surge tank cause i have the sierra fuel tank and the pump i got cant keep up with thevl pump and u dont wanna fit a vit tank cause i dont have a bl

Dank - I love how you said 'I had no fuel related issues at all', does this mean there were plenty of other issues

I simply run a VL commodore external pump and high pressure filter (after pump) and have never had a problem either with or without Supercharger setup/fuel pressure reg. Angles are fine too.


Why are you wanting to have a surge tank set up, are you experiencing problems with starvation? In what conditions?

yeah in low tank and 4wding

The fact dank had no fuel related issues at all on the weekend is all about the angles we were on. We did some steep stuff, and spent some time on big angles- more than enough to show up fuel supply problems.

A coil Sierra tank is a bolt in for a swb and takes a vitara swimmer pump as a bolt in. This is an infinitely better solution than a surge tank. Really, you'll hate it.

i might do that later on but atm i've already got everything i need for surge tank.

Spike_Sierra wrote:Dank - I love how you said 'I had no fuel related issues at all', does this mean there were plenty of other issues

you read between the lines We did hit some crazy angles and steep hills and we had no problems with the fuel.

but seriously, no major issues at all...little niggly things to fix..isn't there always with sierras?

4age 20v = AWESOME

I'd go intank pump if it were me I've been having multiple issues with my efi project caused by external pumps getting hot (vaporisation) and being noisey. Plus the surge tank adds heaps of extra joins to leak and takes up a fair bit of space that you don't have in a zook. I can't remember exactly how big it is but couldn't you pull the sender out of the standard zook tank and drop an efi pump into there? It wouldn't have the internal baffles to suit but would probably work better than what you have now. Just an idea.

this is my it goes from the tank through a filter to carter pump then into a serge tank then out into a filter to a vl fuel pump works a treat

You used a carter on a zook? They pump 200L/PH!

my carter pump is the small one its only about 100l gph its been in there for 2years now

By the way this car is turbo

I run a carter aswell. Also run a surge tank. Never had an issue with it.

Just think of it as another 500-1000mL fuel capacity

surge tanks and in tank pumps both have their good and bad points. no matter how well designed the in-tank pot is, there is still a chance it will cause the pump to suck air. this is more a chance on larger tanks than smaller. the baffles of an in-tank pot must still have holes/slots to let the fuel move around. so if you are on a very low tank, and on a very sphincteral angle there is a chance you will suck air, and is something i have seen. an external tank can be a pain, but when set up right it should not present a problem. and if they are under the car and at the rear are very legal. one thing you are gauranteed with an external tank is that you should never have to worry about the pump sucking air! this is why alot of high performance cars run external pots, just to be sure.

i have done many of both, and at the end of the day i could not care what sytem you have. BUT, if you break down in the middle of nowhere, i pray you have an external setup with a vl style pump as thes are plentyfull and very easy to change. a shorty with an in tank vit pump will take some nutting out (even if you can find the right pump) in the middle of nowhere.

(p.s...mine is in tank....but i have a ute and i can pull the pump out with ease....and i carry a spare that aint vit;))


as the great little man says....just my 2 cents

finished my surge tank install yesterday. what a !@#$ of a job. lol then i took it for a bit of a run in the mud and found out the tail shaft taps part of the surge tank. but it hasnt done it recently so i'm thinkin its pushed it outs its way enough. but on the plus side. i can barely even hear my fuel pump now. i dunno what ppl were sayin there noisy for. and i tried to make it suck air today cause my tanks gettin low and it just wouldnt so thats another good sign. just gotta fix the fuel guage now so i dont run out of fuel lol