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Following some high temperatures on the ring, I decided that it woul be a good idea to hard wire the fan to a bypass switch in the cabin. Until now I have always used the AC switch (the fan is the only thing that works so might as well!). owever, I discovered the ultra hyper warp speed fan setting over the weekend and decided that it was a great idea to enable full fan control, including the hyper mental take-off speed, as I have removed the aux rad and do see some higher temps as a result.
This is all for a 1994 RHD ABY coupe with AC and no airbags. Just to cover and differences between models in case you break your ECU or something in the process!
So, I followed the wire colours from the fan switch which consists of a live with two wires which are switched according to coolant temp in the rad. The wires were a green with black stripe (stage 1) and a red with green(?) stripe (stage 2).
Stage 1 - a warning for cars with AC. I found two green wires with black stripes, one goes to a plug in the mess of wires under the steering wheel and the other to the fuse box into a large grey plug at the end furthest away from the wing. The first wire puts the fan onto the AC slow setting and the second puts the fan onto stage 1, both could be useful if your car has AC and you don't want it on when minor cooling is required.
The red wire with green? stripe goes to a relay under the steering wheel, right at the top nearest the door. I've never had the fan go onto this setting (which is good!) but it was a godsend on the ring in 30deg temperatures.
I tested the wires with a live feed first to check that the fan span at the speed I wanted (that's how I found that one of the green/black wires made it spin at AC speed, not stage 1!) and then cut the wire and used spade connectors to splice in a wire that I then connected to a toggle switch on the dash.
It's all experimental at the moment but with the cooling problems I've convinced myself I have it should provide some peace of mind over the summer and for any track days that I attempt this year. Only thing to do now is to get a slightly more galmourous switch than the 3 position toggle switch that's on loan from work!
It took about 2 hours to trace the wires, find the best place to cut them, fit the switch in one of the dash blanks and test it all. Pleased that it's all sorted, just got the switch to sort now so it looks a little less Maplins and a bit more proper like.
This is all for a 1994 RHD ABY coupe with AC and no airbags. Just to cover and differences between models in case you break your ECU or something in the process!
So, I followed the wire colours from the fan switch which consists of a live with two wires which are switched according to coolant temp in the rad. The wires were a green with black stripe (stage 1) and a red with green(?) stripe (stage 2).
Stage 1 - a warning for cars with AC. I found two green wires with black stripes, one goes to a plug in the mess of wires under the steering wheel and the other to the fuse box into a large grey plug at the end furthest away from the wing. The first wire puts the fan onto the AC slow setting and the second puts the fan onto stage 1, both could be useful if your car has AC and you don't want it on when minor cooling is required.
The red wire with green? stripe goes to a relay under the steering wheel, right at the top nearest the door. I've never had the fan go onto this setting (which is good!) but it was a godsend on the ring in 30deg temperatures.
I tested the wires with a live feed first to check that the fan span at the speed I wanted (that's how I found that one of the green/black wires made it spin at AC speed, not stage 1!) and then cut the wire and used spade connectors to splice in a wire that I then connected to a toggle switch on the dash.
It's all experimental at the moment but with the cooling problems I've convinced myself I have it should provide some peace of mind over the summer and for any track days that I attempt this year. Only thing to do now is to get a slightly more galmourous switch than the 3 position toggle switch that's on loan from work!
It took about 2 hours to trace the wires, find the best place to cut them, fit the switch in one of the dash blanks and test it all. Pleased that it's all sorted, just got the switch to sort now so it looks a little less Maplins and a bit more proper like.
LOL, yeah, may just want that little bit of help.
whats wrong ? 
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