im shopping for a final tune on my ba. most want me to fit a surge tank. some dont think its neccessary. whats the truth?

Depends what you want to do with your car. Under half a tank doing circuit racing you'd be running the risk of fuel starvation, which can lean out your air fuel ratio briefly and lead to detonation. Even more serious drag racing or spirited twisty driving around 1/4 of a tank could cause probs. Inside the fuel tank, the fuel gets pushed to one side, away from the pickup due to the G forces. For me I have one just for track days as otherwise I don't push my car hard enough to worry. It means I don't have to refuel after only a couple of ciruit runs. After experiencing the difference I can say it definitely works a treat. Cheers.

Ben

the car will see ocassional 1/4 mile passes running around 340 rwkws. one tuner is saying that its absolutely mandatory, regardless of fuel level.

Either way, it's relatively cheap insurance to have one.

yes yes yes ive just found out the importance of such an item ......................cant win when your surging iam also in dyre need of 1 now 2

A good example is my FG.

On a full tank it will run around 11.3 afr's on full boost, when the level drops to under a quarter tank, it will go I to the mid 12s and sometimes low 13s.

This is all on flat roads, such as freeways just nailing it in 4th.

It's accually showing up low fuel presure, from the pump not picking up fuel as well as it does on full tank.

I have an AEM wideband O2 metre permenetly set up in the dash so I can monitor AFR's at all times.

With the sugetank system now fitted, there's no leaning out at low levels, it sits in the 11s no matter what I do.

So surge tanks are not just for track work, they are very good insuance.

Put one in, it will give you consistancy.

sounds like the done thing to me!! what size pot is required to get the consistancy?

I have a 044 pump for the job. will the ebay swirl pot do the job?

whats everyones opinion on having 2 044s sucking off a process west surge tank? I know its a relatively small tank but im hoping the walbro intank will keep it full, and its only going to 80lb injectors...??

PW 2lt surge tank and 044 fuel pump comes as a polished unit and uses factory bolts to fit from CV performace for $1100 u say u have the 044 so im sure u can buy it without the pump cheaper