Has anyone baffled their adm fuel tank?
Het Guys,
My car is a fiend of fuel surge as the current fuel system comprises
of a single VL pump hard mounted to the chassis rail (So Loud!!!).
I don't want to run a surge tank due to the space they consume and the legalitys as the car is currently engineered as is.
My idea is to:
Mount a S13 fuel pump inside the tank and have it encased in a alloy cylinder
which has a few holes in it to work as an internal baffle.
The pump will easily provide enough fuel flow and the noise should be
almost eliminated. I am hoping that with the car having over a 1/4 of a tank
of fuel, fuel surge should be almost eliminated. Hopefully the sender will not fowl and still work.
Anyone done anything similar or any ideas on this?
I have also given this a bit of thought and remember reading somewhere that an "easy" way of doing what you want, is to grab a fuel tank out of a wrecked efi comodore, and have the baffle removed and welded into the adm tank.
I think the fabricator can also set you right with an internal mount for a fuel pump.
or get a jdm tank
hey man, i have seen jez put a surge tank inside the tan. Dont have really good pics of it right now, but basically whre the big sender opening is up near the floor of the hatch, i think he set the whole thing up as a free standing surge tank inside with the feeder pump moved slightly..... not sure about the details, but if your handy shouldnt be too hard....
RIP Carly - a smile to light the world.
06/07/2011
I'll pull it out this week sometime and maybe try something like mentioned above, anyway i'll take pics along the way and let you know how it works,
Thanks for the help
i just bought a fuel setup like what your talking about from steroid chickens.
baffled tank to stop starving the vl lift then into a surgie and a 910.
you can fit a surge tank under the car it's just a squeeze.
the tank itself has had a hole cut out of it under the fuel tank feed and from the looks of it a swirl pot or similar has been welded in with some baffles. the baffles look to be metal 'fins' leading towards the pot.
i can get pics of the setup if you need it.
maybe it might be cheaper to just get a jdm tank?
Still going to get surge in a JDM tank, unless a surge tank is used. I was thinking of making an intank surge tank with both lifter and pressure pump mounted inside. So the whole lot is enclosed. Could be done with a bit of thinking, with serviceability in mind.
Yeah I had a JDM car and still hard conering under 1/2 a tank
had surge. I would like to do an internal surge tank within the tank but
just fitting it all in there might get a bit messy.
45aken would I be able to get a pic of the setup? Thanks mate
Never tried because I found the concept quite baffling from the beginning.
SamQ has done it... PM him.
No worries man,
i'll get some up asap.
it's a really good setup and apart from 3 bolts in the boot floor you would never know (unless you put it on a hoist)
Here you go
Here is the modifications done to the tank, the straight welds are the fins/baffles leading towards the swirl pot.
the surge tank in between the tank and the panhard mount.
The bottom of the surge tank has a bracket welded on to support the fuel pump.
all in all it's a tight space but very do able. The surge tank mounts pretty flush up in the corner of the rails, and the base was cut to allow it.
hope that helps
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