Vehicle & Technical > Range Rover
Likes to over heat once and a while??????
squaddie_fox:
--- Quote from: Range Rover Blues on June 16, 2009, 19:35:31 ---Careful there, I rand Kenlowe for technical advice and they told me NOT to fit electric fans as they only shift half as much air as a viscous fan.
I'm yet to be convinced the electric fan on our TDi has made any difference at all.
--- End quote ---
thats why i didn't say the kenlowe fans, they are over priced and i seem to remember them quoting some silly figures in their ads. twin fans or two individual fans works well.
i had leccy fans on my VM, they are prone to overheating at the slightest opportunity. with the electric fans i managaed to overheat it once, whilst pulling a disco uphill in blistering heat. all the coo.lant ran to the back of the header tank as the pipes are at the front it stopped the flow.
Range Rover Blues:
If a viscous fan consumes 2 hp at "idle" and up to 4hp at full blow, that's the equivelent to 3,000watts, so assuming the electric fan is 100% efficient, 250amps.
I doubt you will find any fan,or combination thereof that will output anywhere near the same as a Viscous fan, in truth the 13" HD Kenlowes are quoted at slightly more than half the air flow in CFM, Pacet are little better and make more noise (less efficient).
You can argue that the cooling system when in good nick is over-engineered for the UK market, but by removinng the viscous fan you eat into that safety margin considerably.
I'm not syaing don't fit electric, I have them on Blue, I'm saying think carefully. I tow regularly with the LSE, it's auto and has airconn all of which make things worse for the cooling system.
BTW, the fans on Blue will melt a 30amp relay if they are on a lot, which they are when I'm laning in the summer.
squaddie_fox:
the fans on mine were switched through a thermostat that didnt work properly so they were wired through to the battery on separate circuits, one for each, and switched via a 30 amp fuse... :roll:
fordlltwm:
--- Quote from: Range Rover Blues on June 18, 2009, 00:15:48 ---If a viscous fan consumes 2 hp at "idle" and up to 4hp at full blow, that's the equivelent to 3,000watts, so assuming the electric fan is 100% efficient, 250amps.
I doubt you will find any fan,or combination thereof that will output anywhere near the same as a Viscous fan, in truth the 13" HD Kenlowes are quoted at slightly more than half the air flow in CFM, Pacet are little better and make more noise (less efficient).
You can argue that the cooling system when in good nick is over-engineered for the UK market, but by removinng the viscous fan you eat into that safety margin considerably.
I'm not syaing don't fit electric, I have them on Blue, I'm saying think carefully. I tow regularly with the LSE, it's auto and has airconn all of which make things worse for the cooling system.
BTW, the fans on Blue will melt a 30amp relay if they are on a lot, which they are when I'm laning in the summer.
--- End quote ---
I was pulling relays out in a scrapyard and found that a ford granada estate has a 70 Amp relay for the fans, it's about 2 inches high
Bowie:
I fitted a twin setup from a Mondeo 24V with air con, the cowling is almost a *PERFECT* fit to the Range V8 radiator, actually clipping in place along the upper and lower edge with all but the tiniest amount of trimming required. I added a small bracket just to hold the top left (as you look at it) corner of the cowl off the fins and job done.
2 30A relays running straight from the battery and they are temperature controlled via MegaSquirt, 85C on, 83C off.
Works very well even when crawling or towing -anything above 45MPH and they don't come on at all :)
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