14 replies to this topic

[Ollie180]

ok i fitted my new fan thinking it would be easy to do

so i made a quick mok up on the wires (pic)


it gets no power? but when i take the switch out and wire it up withotu switch when engine turns over it spins very slow tho. is there something ive done wrong? or is there anythings i can try?

cheers Ollie

[wobbit]

ask bungle, hes the sparky

[pikey7]

Don't connect to the coil! It's the wrong voltage!

Use an ignition switched positive from the fuse box, via a switch (or a temp switch) to the fan motor. Then earth the other side of the motor.

You may find you have to go up in fuse size as the current draw from one of those things is quite high.

[Ollie180]

i dont have fuse a box i have no fuses

so where do i wire it up to?

what about the fed from the batery? would it work then to the isolelod*

[dan__wright]

wire it to the battery, you will need to fuse it though and it will always be able to come on, regardless if the engines running or not.

[pikey7]

yep, take it from the + battery feed off the solenoid, and stick on inline fuse in there. Bear in mind it will not switch off when you turn off the car though. You will HAVE to remember to switch it off.

[Grayedout]

i dont have fuse a box i have no fuses

That sounds dangerous !! Why ??

[Bungle]

take the power from the battery or the isolelod and use a inline fuse

[Ollie180]

Ok all done now thansk for your help

i wil hardly use it just when the engine is in pits or waiting on the line once i get moving il turn it off

thanks

[dan__wright]

proably because its hi track car so it has no electrics other thank brake light and ignition system.

[Ollie180]

yep race car so only need it when it pits or waiting at the line

i didnt put a fuse on so would you say i shoud?

[pikey7]

Spend £3 now on a fuse and holder, or £10 when you burn the motor & switch out. Your choice.....

[nmt_oli]

It also prevents the wire melting if it shorts out on the bodywork!

[dean_chad]

shouldnt a relay be used as that amount of current through a little switch may heat it up? i would use a relay etc


add an inline fuse before swith and fan>>>>>>>

[dan__wright]

provided the switch you are using is rated high eough for the current of the fan you will be fine, i would fuse it though.