Dave R

Hi All,

Does anyone know if the New Age Spec C fuel pump assy inc anti fuel surge box, will fit a Classic (Type R), and if not, will the box retro-fit onto the Classic assy?

Just want a simple fix to my 1/4 tank fuel surge issue. Can be quite annoying as it's difficult to commit to a bend when it might drop dead on the exit at full chat!

Any other ideas? Might just lash up a pot myself if it comes to it.

Cheers
DR

GC8

Had you considered a big piece of fuel tank foam from Demon Tweeks?

Dave R

Not really as I thought it might reduce the available volume/my range etc..

Just thought a small box around the mesh bag might be a neat fix.

Any experience of the foam?

DR

GC8

I havent used the foam but Ive used a vehicle with a foam filled cell-tank; the foam doesnt really affect the capacity of your tank, it squashes down to next to nothing and its reasonably cheap too.

Simon

StickyMicky

commit to the fuel tank and then you wont get fuel surge

johnfelstead

yes it's a straight fit, but its bloody expensive!

911

Two thoughts:

Fit a real swirl pot from Power Station with high pressure pump in engine bay by the A/C pipes/bulkhead. (£500)

Fit an in-tank MRT assembly which is what you are contemplating anyway. www.mrtrally.com.au for some ideas you can steal (£ much cheaper)

Won't the foam jamb the fuel level float?

911

Adam M

you could make one from a used margerine tub.

Johnf fitted one, but it is expensive.

Conclusion was not to pipe return into it as it raised temperature of fuel considerably as it was a semi closed system.

Dave R

Cheeers Everyone.

Adam. Can you explain further about the return? Into it? Into where?

Cheers
DR

Ken Ross

I went for a home made intank solution

Copied this :-

By folding a 4"x2"X1.75" tank out of thin aluminium, leaving the fordward side open in at the sides.

Sizes were chosen to fit in the hold in the top of the fuel tank.

911

That's the one I was on about Ken. Have you had the chance to try it yet at 1/4 tank and your favourit bends?
911

Ken Ross

Well with the gauge reading zero (I ran the tank as low as I dared before I fitted it), it can go round 180 degree corners ok.

I've not had the chance to try it on track, where I normally have a problem.

MaeckyMY98

is there a raw drawing of the cell you make?
where gets the Fuel in?
Is the return line also pluged into the cell?
where you attach the cell?

Dave R

Ken,

That's just the sort of thing I was thinking of. Can you give us some more details of yours so I can get one knocked up at work?

You say it was open forwards. I assume the corners were folded in to allow fuel in but hinder it getting out? Dit you bother trying to seal it up at all or just get it near enough?

Any pics?

Cheers
Dave

Ken Ross

No Pic's I'm afraid, I couldn't hold the camera, after a little incident with an angle grinder while making it.

I'll post up a scan of the cardboard template I made.

The box was open at the front, apart for a 1" section directly infront of the pick up.

I didn't bother with a perfect seal. Just had a few flaps at the joins and a couple of pop rivets holding it closed.

911

I think the MRT idea is to create a labarinth path for the fuel to entre and 'fight' it's way out of so creating a slow drain from the pump pick-up sock.
I believe the fuel needs to be trapped as the car goes sideways and resist the side/rear movement of the fuel in the pocket.

I had considered making one from alum sheeting with 2 'u' shaped channel sections each leg inside each other with the front/back also interleaved. A gap of 6 mm created between each leg for the fuel to enter/drain from.
My only thought is if the fuel in the 1/4 full tank is sufficient to 'top-up' the trap as it runs from side to side in the car scooting through a series of bends?

911

dmross

I fitted one to my classic. It helped a little, but did *NOT* cure fuel surge. I am looking into a simple & cheap setup like this:

http://toyotaperformance.com/surge_tank.htm

Ken Ross

Not quite to AutoCad standards, but you get the idea.

Dave R

Excellent.

Cheers Ken.

Will get one knocked up soon. Will let you all know how it goes.

DR

johnfelstead

the genuine item has a rubber base section, you dont want a metal base rubbing along the bottom of your fuel tank!

Adam M

john, out of interest, how much was it?

Do you agree about the fuel return not going into the surge tank to prevent a semi closed system building up heat?

johnfelstead

I cant remember the total cost Adam, wasnt too far off £450 after i paid all the duty etc. Like i said, too expensive.

No, i dont agree with you at all on where the return should go, good parctice is always to return the fuel directly into your surge tank or swirl pot and use that to keep the pickup area as full of fuel as posible.