Re: Fan Speed
Right, I've got everything out now (about time) and have worked out the resistors are actually in series, not in parralel. So there is always a fixed resistance between the fan and a full 12v, even when on hot.
So, as I am thinking about removing the resistors, I thought I better check to see how the fans cope with a full 12v straight from the battery. On thinner wires than what is fitted in the car's loom, the fans ran fine, albeit fast. A fair bit faster than I have seen or heard them before, but not massively so. And the wires didn't get hot, so there shouldn't be any problems there.
Basically, if I connect the two wires circled red together, this means the first fan gets a full 12v if the temp gets over 92. With the two wires circled blue are joined together (notice one of them has no end - this melted on the exhaust and has been since cleaned up), this means the second fan will get a full 12v if the temp gets over the next threshold, I think 97 degrees.
What does everyone think?
Last edited by Pud237; 02-12-15 at 14:12.