Board logo

Fuel Starvation solution
noc231073 - 24/10/11 at 03:05 PM

Just wonder what all yeah guy use to stop fuel starvation.. For racing
I don't really want to go down the route of a swirl pot and I'd like to keep the busa fuel pump
What the best way to solve it baffled tank, sump in the tank, etc??


jimgiblett - 24/10/11 at 04:02 PM

Cheapest route is to keep the tank full.

You may be lucky with some clever baffling but depends on how hard you corner and how the busa would react. Probably just kill power mid corner.

Swirl pot is really the only proper solution. This can be either in the tank or external.

- Jim

[Edited on 24/10/11 by jimgiblett]


Hector.Brocklebank - 24/10/11 at 04:33 PM

Hi

In my kit car i used a standard steel tank modded slightly by drilling loads of holes along the bottom, and welding a very shallow oblong "funnel" type base to the bottom of the tank with circular metal ring welded to it, this lead to a 2003 GRSXR1000 fuel pump that bolted to the ring (sealed with a large "O" ring, the gsxr pump has its own internal Sump as you can see from the picture, after i installed i never suffered from starvation again. and it had a integral fuel gauge too





Jon Ison - 24/10/11 at 04:47 PM

You say busa pump, in tank one ?

I run a in tank zx10 one and have no further problems, prior to that I ran a busa external pump had had intermittent starvation problems, even with a swirl pot which as now been ditched also.


danny keenan - 24/10/11 at 04:54 PM

nick

our standard tanks do have a baffle plate built in them.
if you are getting fuel starvation i would fit a swirl pot

thanks danny


noc231073 - 24/10/11 at 05:10 PM

its quite bad, if i get down to half a tank I suffer from it ...
maybe the swirl pots the only answer

Turns it into an expensive job

low pressure pump,
high pressure pump
swirl pot
fuel regulator
fuel filter,
Tank modified
and wiring for the lot too


noc231073 - 24/10/11 at 05:13 PM

http://www.alloyracingfabrications.com/lo-cost-alloy-5-2-gallon-injection-fuel-tank.html

what about this with a built in sump


Jon Ison - 24/10/11 at 05:19 PM

What pump are you using now ?


noc231073 - 24/10/11 at 05:32 PM

I am running the standard hayabusa fuel pump which has a built in regulator and filter...

its the gen 11 busa so theres no return from the fuel rail


Jon Ison - 24/10/11 at 05:38 PM

It's your call, I had lots of starvation problems, I thought it was an injector problem at 1st but it wasn't, exactly same as you also 1/2 tank made it worse throwing a red herring.

I purchased a zx10 in tank pump, had a small sump made in fuel tank, run a direct feed to fuel rail with no return, had zero problems since and I regulary do 1 hour plus stints on track.

Your call, trust me it will work.


noc231073 - 24/10/11 at 05:51 PM

a sump in the tank might be the right option first


danny keenan - 24/10/11 at 06:26 PM

with afew of our cars we have made a swirl pot with the hayabusa pump built in it.then it save you the cost of regulators and other things.but then you would need a different tank so its up to you

thanks danny


noc231073 - 24/10/11 at 09:07 PM

think i found the a solution


EFI Fuel Pot / Collector
For car installations using fuel injection, Rilltech has a custom fuel pot available to ensure you get every last drop of fuel in your cell. Even fuel cells with collectors can have as much as a gallon of fuel left in them when fuel pressure starts to become erratic.

This pot ensures that does not happen. A small rotary scavenge pump keeps the pot filled from the fuel cell, and a high pressure pump feeds the engine. This pot can accept stock Suzuki/Yamaha/Kawasaki pumps, and many aftermarket pumps internally, or you can plumb the output of the pot to an external fuel pump






just need to add a lift pump