Thread: Electric Water Pump/Thermo Fan

I can vouch for them on competition machinery! Had an electro-magnetic water pump fitted that was thermostatically controlled (You could pick the optimum temp). It worked fine in all weather conditions on a V8 that ran to 8500rpm and was pushing close to 300bhp!

Minimal battery draw and I could run it on after engine shutdown to prevent heat sink.

Can't see any reason why a similar system couldn't be adapted to a TD5 although from an engineering perspective - do you think the cost and significant modifications would gain you enough to justify all of this for what could be just 3-4 additional HP??

unsure Catmatt, Davies-Craig claim power loss of up to 30% due to cooling system loss.In that case I would get get back (not gain) up to 30kw which the cooling system was stealing. sounds amazing doesnt it. I just wish I could confirm this from anyone using this system on any vehicle.....real before and after figures. It will cost at least that much to modify the engine to claim 30kw, but I was really after the cooling system improvements with the free power gains as well.

TBH, while I have also used Davies Craig pumps in race cars, I think it is not really a viable conversion on a td5. The fitting of it would be a nightmare. (I'm not sure its even possible thinking back to when I have had my cooling system apart)

Also IMO there is no way that the cooling system (pump and fan) would get anywhere near taking 30kw. maybe 5.

yeah thanks pete, I kind of agree about the power loss/gain thing, and looking at the plumbing I also kind of agree about how / where it would fit....I still like the idea though. the pump I guess can go anywhere as long as it can be plumbed into the system. looks like I might be the crash test dummy for this one......

I got my numbers mixed up....just checked the website claims.....3-5% fuel efficiency increase.....up to 10kw regained. bit more realistic.

I had a reality check, got in, down, around, over and under the td5 looking to see where the electric pump would fit, seeing its supposed to simply go between a 100mm cutout in the bottom radiator hose.....hahaha......I dont think I will be attempting this until the current belt driven pump fails. I've been given a ba falcon twin thermo fan unit which may well ....easily go in though.
cheers Dennis

Best of luck with the mods, personally I will stick with the KISS principle...