Stuttering at Spa?

[shane@mbtech]

Originally Posted by shimmy

Fuck me your sharp you Shimmy.

Whats heavier? A ton of bricks or a ton of feathers?

[glendog74]

Originally Posted by lawsy

Fuck me your sharp you Shimmy.

Whats heavier? A ton of bricks or a ton of feathers?

W..w..w..what's h..heavier?

Shh..Shh...Shimmy in...O..Oc...October 2009 or Shh..Shh...Shimmy in..Oc..October 2010?

[shimmy]

Originally Posted by lawsy

Fuck me your sharp you Shimmy.

Whats heavier? A ton of bricks or a ton of feathers?

dont start that one, i did that one on the kids last week and still trying to convince them they are the same.......driving me mad

[shane@mbtech]

Originally Posted by shimmy

dont start that one, i did that one on the kids last week and still trying to convince them they are the same.......driving me mad

Ha.

[cantfind1]

Originally Posted by The Gorilla

Hi,

I have found this thread fascinating.

To address any problem you need to undestand the
cause.

The standard E46 petrol Tank pick up operates
from one side of the tank.

ie] the fuel pump is having to 'suck' the fuel
as opposed to 'push' it from one side only.

Thus when the pipe that the fuel is sucked up
to the fuel pump is not below the fuel
level, then air enters the fuel pump, fuel
pressure drops and the spluttering on
heavy cornering on 1/4 tank can and does
occur.

As the standard fuel pump is rated for 5 bar then
its only issue is fuel supply and what its pick
up is, ie] what distance away from the pump
will it still suck up fuel.

So, if you had a short length of rubber fuel hose
fitted to the bottom of the existing fuel pick
up, then a 'T' fitting, and then another length of fuel hose
to the other side of the tank, which would be no more
that about 1.0 mtr in length, you would ensure that
the fuel pump was always able to suck up fuel,
which is the cause of the problem.

Although this is all internal to the tank, access via
the existing pump set up would be quite easy, and
you have to remove this to fit the CA solution
anyway..

The CA fix just creates another part that can go
wrong, adds more weight !!!!!! and the same
results can be acheived a lot simplier and a whole
lot cheaper.

Regards,

The Gorilla.

Yes well put, however the fundamental floor in your plan is that the crap oem pump is not strong enough to suck fuel through lengths of hose around the tank hence why you install a second pump in place of the sender unit on the left hand side to push fuel to the right hand pump.

Hardly any extra weight as you are replacing the other unit with the same thing any way, it just has a pump in it which weighs grams!

The oem pump degrades over time and does not produce enough flow anyway, hence why i am going with the walbro conversion for piece of mind.

If you want to be tight the just do the walbro conversion and let it suck fuel through pipes from the left and right side of the tank.

[The Gorilla]

Hi,

The Standard E46 fuel Pump is fine for what were
talking about.

It pumps 5.5 bar at 350mm so no problems.

If changing the pump though, then a Bosch 044 would
be my choice.

Bosch 044 Pump 120.00
Adjustable Fuel Reg 100.00
Sytec Filtre Pre Pump 60.00
Rubber Hose & Fittings 25.00

About as good as any Road / Track car will ever need
and a long way shy of the CA fix.

But as I said the hose alone is a simple easy fix for
a Car that does some Track days.

Regards,

The Gorilla.

[billy-m3cutters]

Very interstingn thread guys and very helpful indeed especially for those who do regular track days.

I would suggest this to be a sticky in a trackday section.


Well done cantfind1

[DuncanR]

Originally Posted by shimmy

Sorry not convinced

Gonna try it with some straws and Stella tonight!

Be careful not to injure Stella Shim ...

[DuncanR]

Originally Posted by shimmy

dont start that one, i did that one on the kids last week and still trying to convince them they are the same.......driving me mad

What you need to find mate is a 6 foot tall fookin wood pigeon !!!

[Bealo]

Good thread and good read