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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Davies Craig fans
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Thu, 16 September 2004 04:34
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Has anyone used one of these before? Had any problems with them?
I need a fan fairly urgently and these are about the only thing that I can find easily that are the right size 
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Location:
c'town, NSW
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 04:37
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yeah i had a twin 10inch setup on my RA40
worked fine no hassles at all, i had them on the front of radiator pushing air.
work for over a year still going, thats about all i can say
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Location:
Central Coast, NSW
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 04:38
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Same here... single 16" Davies Craig on mine, works well and still going strong for nearly 2 years
Dan
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 04:43
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Great thanks. I'm looking at getting a 16 inch.
Just that a few people have said they are crap without giving a reason. Probably because they never got given enough pocket money to afford one 
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Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 05:15
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The Davies Craig on my last car worked perfectly for about 6 years (100 000 + km) before it developed a squeal and ceased to spin. I had a 12 inch one (the fan I mean  )
My current one is working fine and is about 5 years old too. Don't know what particular problem they are meant to have , but mine have been ok.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 05:25
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Great thanks. Exactly what I wanted to hear.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 05:27
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12" and 10" on mine (10" not a DC though)
zero hassles and a cold engine (damn broken thermo switch)
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 05:28
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note: DC electric water pumps have a BAD rep... perhaps this is the vibe youve been hearing about??
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 05:37
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Yeah maybe. Thanks
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Location:
Adelaide
Registered:
August 2003
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Re: Davies Craig fans
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Thu, 16 September 2004 05:57
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hmm..i thought craig david's fan ...
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Location:
Sydney
Registered:
July 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 10:25
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There are 2 types of 16inch DC fans. The DC32 and the DC12 (from memory).
The DC12 is the more heavy duty one. I'm running a DC12 on my 1UZ with supra intercooler. It moves a shitload of air. I can often see if my car is running warm by opening my door and putting my hand near the ground and can feel the hot wind blow.
I've had people (OzCraig) mention that their feet were getting warm when standing next to my door talking to me.
Once again - the DC12 moves a shitload of air. Thumbs up from me.
Mounting was easy too. Wiring I'm not good at, but its pretty easy, nice complete kit.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 10:34
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The only 16 inch fan they sell is the DCSL16.
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Location:
Brisbane
Registered:
June 2003
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 11:27
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what size rad are you putting in shane?
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 16 September 2004 11:28
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Big as possible. 500 wide 450 high. Something like that.
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Location:
Perth
Registered:
April 2003
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Re: Davies Craig fans
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Tue, 21 September 2004 19:37
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Ohh..
Another thing that i need to budget for with my rebuild.. but forgot. How much are the Davies Craig fans in general ?
I was also considering using the Davies Craig electric water pump but i've read mixed reviews about it. Cheap gain in transmitted hp if it did work well.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Tue, 21 September 2004 21:51
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The 16 inch fans are about $300.
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Location:
Tasmania
Registered:
April 2003
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Re: Davies Craig fans
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Tue, 21 September 2004 23:48
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HI,
I'm doubtful as to whether it will fit, but have you looked into the possibility of fitting the twin AU Falcon set-up? My friend just picked his up yesterday to fit to his Jaguar XJS. He said it is one HUGE item. I've been roped into help fit it on Sunday. The joys of Jag ownership.....
Justin
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Wed, 22 September 2004 00:30
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| moo4AGZETA22 wrote on Wed, 22 September 2004 09:48 |
HI,
I'm doubtful as to whether it will fit, but have you looked into the possibility of fitting the twin AU Falcon set-up? My friend just picked his up yesterday to fit to his Jaguar XJS. He said it is one HUGE item. I've been roped into help fit it on Sunday. The joys of Jag ownership.....
Justin
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The problem with most OEM fas is the shroud and fan is one unit. This is not a problem if you want to butcher the shroud and have it look like shit. But if your like me and have spent over 10K just to get the car close to running, you wouldn't want something shit looking bolted to the back of the radiator.
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Location:
Tasmania
Registered:
April 2003
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Re: Davies Craig fans
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Wed, 22 September 2004 00:50
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Hi,
This is what we'll be copying on Sunday:-
http://www.ichiexport.com.au/Personal/XJ-SC%20Mods /ICH%20181%20Mods.htm
His radiator is the same as my friends, who has a V12. It looks very neat and OEM.
If you were prepared to cut the radiator panel more to the drivers side, I'm sure that you'd be able to fit the fans on a big radiator.
The Jag puts out more heat than any other car I have ever been in (Bar a friends 808 with a 13B turbo), so I think if you've spent so much $$$, fitting a OEM thermos like the AU one would/could be a good idea with a custom radiator!?
Justin
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Registered:
May 2002
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Location:
Crapberra
Registered:
September 2003
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Re: Davies Craig fans
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Wed, 22 September 2004 01:04
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The only bad thing I'd have to say about my Davies Craig is the stupid copper sensor on the thermo switch that looks so ugly hanging out your raditor pipes. I have heard romours of a different type of sensor that looks so much neater.
Might be something to consider if you're going for the neat engine bay look.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Davies Craig fans
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Wed, 22 September 2004 01:23
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| moo4AGZETA22 wrote on Wed, 22 September 2004 10:50 |
Hi,
This is what we'll be copying on Sunday:-
http://www.ichiexport.com.au/Personal/XJ-SC%20Mods /ICH%20181%20Mods.htm
His radiator is the same as my friends, who has a V12. It looks very neat and OEM.
If you were prepared to cut the radiator panel more to the drivers side, I'm sure that you'd be able to fit the fans on a big radiator.
The Jag puts out more heat than any other car I have ever been in (Bar a friends 808 with a 13B turbo), so I think if you've spent so much $$$, fitting a OEM thermos like the AU one would/could be a good idea with a custom radiator!?
Justin
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i emailed this guy ages ago about his EWP install. said he has had zero hassles with it, even trekking aorund hot Aus, and also taking it on the track... then again, if i could get a bolt on Meziere(sp?) pump, i would 
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Location:
Rocklea qld
Registered:
February 2003
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Re: Davies Craig fans
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Wed, 22 September 2004 11:14
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thermos are good if thats all u can fit in but put a engine fan on of some sort if you can fit it. if not use a shround with your thermo for the best results and do not mount it straight to the rad.
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Location:
Perth
Registered:
April 2003
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Re: Davies Craig fans
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Thu, 23 September 2004 08:13
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ARGHHH!!!! - more blood -
| Cool1 wrote on Wed, 22 September 2004 05:51 |
The 16 inch fans are about $300.
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Location:
Perth
Registered:
April 2003
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Re: Davies Craig fans
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Thu, 23 September 2004 08:15
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Actually i'm more of a Tawny Roberts Fan. 
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Davies Craig fans
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Thu, 23 September 2004 13:27
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| people100 wrote on Wed, 22 September 2004 21:14 |
thermos are good if thats all u can fit in but put a engine fan on of some sort if you can fit it. if not use a shround with your thermo for the best results and do not mount it straight to the rad.
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That's it. There IS a reason why GTRs, Supras, etc. have got clutch fans instead of electric fans.
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Location:
wangaratta
Registered:
May 2004
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Re: Davies Craig fans
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Fri, 24 September 2004 04:06
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and do we actually know why that is shinny???
i have heard this many a time, but i am yet to hear of why...
does anyone know??
is it purely because of the fact that clutch fans usually have a good shroud design, or because it is unlikely that they will fail or what is it??
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Davies Craig fans
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Fri, 24 September 2004 04:11
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Cos they work well and they're reliable.
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Registered:
November 2002
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Re: Davies Craig fans
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Fri, 24 September 2004 05:54
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I'm walking away.........
From all the troubles in my life....
I'm walking away..........
And 'ghey' rhymes with 'away'....
It just had to be said.
And speaking of which, what JCMF said is spot on, clutch fans work uber well and shrouds are used because they work and work damn fine. Tests have been done on radiators with and without shrounds on the fans, and with a shroud they dissipate heat faster. (Wat-up dude, who bin dis-in my pate ? Word up.)
The clutch mechanism allows the fan to be switchable so that it is off when its not required, in cold conditions, like snow for example, when you want the engine to get up to temp. The cars are built for all climates all around the world, not just this sunburnt country we call home.
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Location:
Sydney
Registered:
May 2002
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Re: Davies Craig fans
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Fri, 24 September 2004 06:04
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also ever had a multimeter on the battery when the thermos kick in.. voltage drops and hence you will have a weaker spark.
you will notice your idle drops a little too.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Davies Craig fans
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Fri, 24 September 2004 06:25
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| boxh34d wrote on Fri, 24 September 2004 14:06 |
and do we actually know why that is shinny???
i have heard this many a time, but i am yet to hear of why...
does anyone know??
is it purely because of the fact that clutch fans usually have a good shroud design, or because it is unlikely that they will fail or what is it??
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simple.
an engine mounted fan will move more air than an electric fan of similar size. look at the blades of the engine fans, they are huge compared to the electric fans.
BUT and engine fan, by moving more air, uses more power.. it is a parasitic power loss on the motor. this loss increases as a function of the square of the rpm (loss is proportional to rpm^2)
now put on electric fan. doesn't work as well, but doesn't have direct parasitic loss on motor when it revs high. so you feel like you have more power (and you do!). but the electric fan also uses electricity via battery and puts parasitic drain on the alternator. BUT this is not as much drain as the engine fan (since it's moving less air) so you still have more power available than with an engine fan..
then if you add a clutch to the fan. at low engine speeds, fan spins at engine speed (pulley speed), and clutch doesn't slip. as engine revs increase, the power required to move the fan increases, increasing load ont he motor. at some point, the clutch slips, and the engine can still rev more, bt the fan speed doesn't increase proportionally to the engine speed...
the lower the fan speed, the lower the losses.
this lower fan speed is fine as it's still moving a shiteload of air, and is enough to keep radiator cool..
always keep in mind that above 40-50km/hr, the fan isn't helping much, car/airspeed is what cools the radiator then...
anyway...
Cya, Stewart
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Location:
wangaratta
Registered:
May 2004
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Re: Davies Craig fans
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Fri, 24 September 2004 07:55
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jcmf: i kinda knew that part  they wouldnt still be used on such fine production cars if they didnt work well.
old corollas: that makes perfect sense. never actually looked at the difference in fan blade sizes between the 2, but now that you mention it, it has all becomes so clear ( insert bright light over head, and 'ding' noise here )
cheers guys.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Davies Craig fans
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Fri, 24 September 2004 08:02
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| boxh34d wrote on Fri, 24 September 2004 15:55 |
jcmf: i kinda knew that part they wouldnt still be used on such fine production cars if they didnt work well.
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Reliability issues of the engine itself, you only have to look at the BMW M3 CSL. Even though they were wringing that 3.2l engines neck for power naturally aspirated, they chose a normal engine fan.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Davies Craig fans
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Fri, 24 September 2004 08:04
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heh heh that too..
hmm longevity of a viscous fan coupling vs an electric motor...
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Davies Craig fans
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Fri, 24 September 2004 08:23
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Cheaper to replace the viscous fluid than an electric fan/motor
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Davies Craig fans
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Fri, 24 September 2004 09:03
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| justcallmefrank wrote on Fri, 24 September 2004 18:23 |
Cheaper to replace the viscous fluid than an electric fan/motor
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Might be cheaper to replace the fluid but you'll be needing to sell and arm, leg and both testicles to replace the fan.
And all this talk about which type of fan is better, are you guys trying to compensate for something? a small penis? I mean a crap radiator thats not very good at doing its job?
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