i am in the middle of wiring and routing in my swirl pot

can anyone confirm that the blue wire is the live i need to cut and solder in another wire to use as the live trigger wire for my relay

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TEAM HIGH BOOST SUPERCHARGED RALLYE

My Rallye project thread

You could take the power for the relay directly from the battery via a suitable fuse.

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R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
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Harness bars

thanks Jim, confirms what Rich just pm'ed me

i think i sorted both queries, thanks again though Andy.

more time online to search and i found it straight away...

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TEAM HIGH BOOST SUPERCHARGED RALLYE

My Rallye project thread

the "open contact" on the relay?

i plan to use a 30amp relay as i already have one
basically when my standard fuel pump kicks in it will trigger the relay to complete the Bosch 044 circuit thus both fuel pumps will go at same time.

pretty sure i understand enough electrics to not blow anything up
to use correct gauge wire, 30 amp fuse for the Bosch live wire coming from battery to relay
will solder and heat wrap any wires so it does not look too rough

this seem okay?

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TEAM HIGH BOOST SUPERCHARGED RALLYE

My Rallye project thread

Yup, thats how i'd do it use the bloue wire as the trigger for the relay and you wont go wrong really. Cant say the pin numbers are correct on the relay without having one to hand but diagram is fine. (well stolen sir) lol

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That blue wire goes right back to the maxi fuse box. Can't remember which fuse it is but its obvious if you look underneath because the blue wires there. You could splice into it there, attach the relay onto the maxi fuse box so it's protected and easy to get too, and also easy to run a cable from the battery, through the relay, then under the car to the new pump.

The 044 pumps draw 14a at 5 bar, and 15a at 8bar, so probably a 20a fuse to be safe and avoid nuisance fuse blowing, or a 15a one should be ok but under heavy load the pump may blow it. As long as the cable your using is rated above 15a it should be fine.

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Oulton Park in a BTCC 306 vid 1
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for anyone whos interested

fuse 9 ; spliced it successfully




relay located in fuse box with live running along next to abs wires to rear of car
(havent secured these yet)

both fuel pumps are priming okay.
update : works great

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TEAM HIGH BOOST SUPERCHARGED RALLYE

My Rallye project thread