is there a fix to fuel starvation?

JWillis72

Fixed that also!


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blak max

will dual pumps work as well?

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phunk

Dual pumps won't contribute to controlling fuel placement inside the tank. You need a baffle or surge system to be integrated or to eliminate the space the fuel has to travel inside.

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Rockrover

I ran these in my rock-crawler (full tube chassis/rock racer).
Auto Performance Engineering - Walbro fuel pick-ups

Had a Jeg's cell with foam...Foam broke down and clogged my fuel system at the filter. With the foam out, I would have serious starvation issues at the extreme angles found during crawling. The solution, and cheap at that, was the fuel pickups. I didn't think they would work, but many in the competitive crawling circles run these. I NEVER had a starvation issue again!

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phunk

Those are really cool. A bit tricky to integrate to the 370z fuel pump modules... but with some ingenuity and effort I think it could be done.

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NoLaKrewe

What do you crawl with?

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bleunetizen

Great idea. So buy two of those and have them pickup fuel from each side?

Rockrover

bleunetizen: I ran 4 of them...One for each corner of the cell. On tube directly to the pickup tube off the pump. I put them on standard 3/8ths fuel line so they could move around a bit at different angles. I had my crawler flopped over on its side 90deg, engine still running, and full fuel pressure. I've had the crawler at over 60 deg vertical (up and down) and never a hick-up with fueling. The things simply WORK. Such a silly simple design too.

Installing took all of about 20 minutes once the pump was out of the cell. Of course dropping the Z tank looks like a chore, but once out, adapting the pucks would be cake. I think all you would need is two (one on each side).

I had mine in my cell for years. Nary a problem. After I could trust them on extreme angles, I forgot they were there. Keep in mind I found this solution well after I tried all kinds of measures...Holley pusher pumps, 1/2 gal reservoir, etc. Then 4 pucks and $100 later I never had a problem again (could have got away with two I'm sure).

Nolakrewe: I ran a Hendrix tube chassis, Rover 3.9V8, Atlas, built 60's, King 16" x 2.5 coil-overs, bla, bla, bla... Took me 3 years to build but it was a blast. Sold it to buy the Nismo! LOL!

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vjarnot

So how does the stock pump pick up fuel? Am I mental or is it as simple as Y-ing into that and throwing two of the aforementioned pucks into the tank?

phunk

In theory, yes it is that simple. In practice, you will find it not quite so simple. The stock fuel pump module does not just have a hose barb waiting to connect external pickups to. You will need to replace the stock pump with a pump that has the proper connection interface or can be adapted to such, and you will have to create a way to mount that pump to the module. You will have to cut away area of the pump module to run the hose from the pump to the pickups. You will have to find a way to secure the pickups to the floor of the fuel tank.

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bleunetizen

I think it should be able to use the existing pump but replace the stock pickup with longer lines and those ones?

Hopefully doable without ripping the tank off the car..

bleunetizen

Ouch

phunk

The stock pickup isnt connected via a tube but a shallow male/female push interface. It is also inside of a canister, with the fuel filter and regulator wrapped around it.

There would be no advantage to dropping the tank out of the car. The access panels are in the interior behind the seats. There would be no extra access by removing the tank from the car.

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240se

Strong magnets like the rare earth magnets used in hard drives would probably work. The tank is steel and they are difficult to remove once stuck.

Nismodean

So I'm thinking this can be the least expensive and most effective means of getting rid of our fuel starvation issue.

https://www.holley.com/products/fuel_systems/hydramat/

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