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Fuel Lines down the Transmission Tunnel
greggors84 - 13/11/03 at 10:38 PM

What are the SVA requirements for the location of fuel lines down the transmission tunnel. Obviously its not a good idea to have them the same side as the wiring loom. Whats the deal with the brake lines though.

My brake lines are down the right hand side and i guess the left would be the best place for the fuel, as the carbs are on that side. So are wiring and brake lines ok on the same side?


Hellfire - 14/11/03 at 01:01 AM

We have put wiring down N/S as that's where our fuses/relays will be going, and Brake/Fuel down O/S as this is where our fuel distribution bar takes it's fuel.

You could always browse through our website to view... just make sure spacing's are correct for SVA for brake's, not that they can see down the tunnel - but you never know!


Dusty - 14/11/03 at 04:49 PM

The clips should be soft lined so they don't chafe and each, fuel/brake/wire, should be clipped separately but they can all go on the same side if you want. Sounds like a plan to put fuel on one side by itself but if it's high pressure and springs a leak the tunnels gonna get full of fuel spray PDQ. Just makes the case for lots of good clips/grommets/etc for safety.


Carl.H - 14/11/03 at 06:17 PM

i was told that the wires and the fuel line had to be seperate.
but wire and brake ok


greggors84 - 14/11/03 at 11:24 PM

I was chatting to ben copeland yesterday and he gave me the idea of putting the wiring in the o/s top of the tran tunnel, leaving the n/s bottom for fuel (the carbs are on the left) and the brake lines on the o/s (thats where i have already put them).


zetec - 15/11/03 at 08:14 AM

I ran the fuel lines at the bottom, wiring top n/s and brake lines o/s top. Also drilled a couple of holes in the floor of the tunnel so that if anything does leak it will just drip out rather than build up. From what I saw a few years ago about fire problems in cars fuel will not burn unless there is an ignition source such as a spark, it will evaporate if dripped onto an exhaust manifold. Brake fluid will ignite if in contact with a high temp surface, drip some on to a hot manifold and it ignites. Have never tried...good reason to keep brake master cylinder away from exhaust.


Hellfire - 15/11/03 at 10:52 PM

As most may have noticed, we have used copper fule line runing down the offside seperately clipped with copper brake line. Wiring on other side... can't see copper pipe splitting but... never say never!

As our's is a bike engine carbs on offide, fusebox on left... made sense!


donut - 16/11/03 at 09:31 AM

I have run the fuel line at bottom n/s, brake pipe bottom o/s and wiring top n/s.

Andy