Blue Book Fuel System Spec - Rally

[boombang 2]

Seem to have lost all my blue books, no idea what the fuel delivery system regs are.

 

No joints in cabin, braided or solid lines through cabin only?

 

Thanks in advance.

[welshpug 1,666]

http://www.msauk.org

 

go to getting starterd, then publications, then yearbook, you can download PDF's for the relevant sections as needed

Edited October 1, 2009 by welshpug

[boombang 2]

Ta mate. Finally looking at getting the car sorted & so many bits I'm not overly clear on the details of.

 

I'm going to try and see if I can find someone who'll come and finish the car off for me in exchange for the Marin MTB

[Baz 421]

Dry-break b*llocks is coming into play soon isn't it?

[boombang 2]

Only I believe on cars with fuel injection, unfortunately everything this year has gone wayward, not getting my copies of Motorsports Now for some reason.

 

 

Found the bit I was after though:

 

• Have any fuel lines passing through the

driver/passenger compartment protected and, if nonmetallic,

to be internally or externally metal braided

hydraulic pressure hose or fuel lines complying with

FIA specifications.

• They may only be joined by screwed sealing joints

or vehicle manufacturers approved joint.

[Tom Fenton 1,548]

Basically it means no push on connections in the cabin, you also need to use proper bulkhead fittings when the fuel lines pass through into the engine bay. One neat way my mate did our track car was to fabricate an alloy top hat that sits above the fuel pump, with bulkhead fittings coming through into the car. That way the original push on clipped connections to the pump can remain, as they are not inside the cabin.

[boombang 2]

Sounds neat, few cars I've seen have done that.

 

Mine'll be running a pickup in base of tank, through a facet, into the pressure reg and into the carbs - just where to put the facet is the question!

 

Someone mentioned making up a box behind the drivers seat to house it.

 

Possibly can have a bulkhead type fixing on metal plate over top of tank, running to bulkhead fixing to pump box, then out again, to bulkhead then out into fuel pump.

 

Means 4 bulkhead fixings but would be neat.

 

 

Or am I massively overcomplicating things?

[Baz 421]

I read that to mean all the fittings had to be screwed sealing joints!

 

Perhaps not though, considering they're not even that as standard. Either way, it's going to get expensive!

 

Many of the rally ones run a covered pump/pickup hole with the fuel hoses coming out of there, i'll try and grab some pics of mine.

[boombang 2]

Can be an expensive game!

 

Cheapest option is copper pipe, then short rubber hoses with Pug OEM style clips to join everything - just make sure no connections in cabin.

 

Most expensive is PTFE lined stainless braided rubber hoses made up with screw fixings.

[welshpug 1,666]

at least there's only one line!

 

when I priced it up with a guy on ebay, (Powers off here actually) it was about £200 for the Saxo, so about half that for a carbed 205.

[Cameron 16]

Hardwall tube is good stuff to use, and FIA approved iirc.

 

I'm busy thinking about this at the moment too, it doesn't say anywhere that bulkhead fittings are needed for fuel lines, only that they need grommets. I was going to run a short length of rubber hose from pump, then hardline tube from there to the engine bay.

[boombang 2]

Any recommendation on suppler and idea on price?

 

As Mei said I'm only running one line with the carbs, makes it a fair bit cheaper

[welshpug 1,666]

try Alex (Powers) he runs http://stores.shop.ebay.co.uk/Torques-U-K

 

For a Saxo I worked out I'd need; (2x)

 

3m hose,

 

1x straight hose end

 

1x 90 degree hose end

 

2x bulkhead fittings

 

2x bulkhead locknuts,

 

2x adapters from bulkhead to to normal fuel hose

 

(all in AN -6 size)

 

plus a few lengths of standard rubber hose to connect to fuel rail and to fuel pump as the teflon lined stuff doesn't push onto the plastic pump take off and plastic fuel rail.

Edited October 2, 2009 by welshpug

[Powers 13]

Cheers Welshpug.

 

Regarding the regulations yes you are right so far. But you do need a Dry break fuel sampling kit if the car hasn't been log booked already.

 

The easiest/cheapest option is: (All AN-6 8mm I.D Bore)

Fuel tank to Straight fitting

Bulkhead (Straight/45 or 90 degrees) look at Spiky's build for inspiration.

Straight fitting

Teflon hose

Straight fitting

Bulkhead (Straight/45 or 90 degrees)

Straight fitting

Teflon hose

Straight fitting

Straight union side port adapter (for dry break fitting)

1/8NPT adapter (depending on Facet)

Fuel Pump

 

From the fuel pump you can do what you like but to finish it off you could continue from the pump and use hose finishers on the carbs.

 

If you take a look at www.torques.co.uk

and then email me at info@torques.co.uk if you have any questions or reply on here.