Fitting spi tank to my 998
Turbo Mini Forums

How do I plump the spi tank into my 998? There's 2 pipes on the pump, and a pipe on the top of the tank going into a round thing with another pipe coming off that, where do thy all go? I know one on the pump will goto the carb but which is which and is the pipe going into the top for fuel return or is this a vent pipe?

I'm guessing the pump wiring is simply just positive and negative?

Also what size fuel lines should I run for a turbo setup? And where's the best place to purchase them or the pipe to make them?

Thanks

Edited by steve2016 on 16th Nov, 2016.

The two pipes on the pump are a feed and return which go to a fuel regulator which in turn feeds the carb. The third pipe is a vent which should be feed to the outside of the car. I would think 8mm pipes would be fine for a 998. The power is just positive and negitive although for safty reasons it is best feed through an inertia switch or relay operated by oil pressure in case of an accident where you don't want high pressure fuel spraying everywhere.

http://s45.photobucket.com/user/kambocars/...wiring.jpg.html

Here for the craic..

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Thanks what regulator do I need? I have a regulator now but it doesn't have fuel return

Does the hif38 not have a fuel return or is that just a overflow pipe that's on it or something?

Thanks

You want the standard metro turbo fuel pressure reg. This has a return on it.

For the fuel line micro bore copper tubing is the cheapest from wickes/b&q etc.

Thanks, could I still run the metro turbo regulator on my non turbo 998 until I finish the project?

Thanks

I currently have this regulator

http://www.minispares.com/product/Classic/...k%20to%20search

Could I run that regulator with the spi pump and just block off the return pipe on the spi tank for now until I get the turbo stuff sorted or does that need to be connected up?

You would probably damage the SPI pump as it is designed to flow through a regulator with a return which allows a constant flow whilst varying the pressure. Running the pump against that regulator doesn't allow a constant flow which the injection pumps are designed for.

For the previous question, yes, just don't connect the manifold pressure sense line, just leave it open to atmosphere so the regulator will run at a constant value (like your current one). The sense line on the Metro turbo one is to make sure the float bowl is a fixed differential above the inlet manifold, on a normally aspirated setup the fuel pressure just needs to be set against atmospheric presure as the float bowl is vented to atmosphere, not pressurised.

Schrödinger's cat - so which one am I ???

Thanks so I just need the metro regulator and and flow gauge thing to set the regulator pressure up and leave the pressure sensor line off and I should be good to go

What about a fuel filter, can I still use my glass inline rebuildable filter?

Thsnkd