| Author |
 Topic  |
|
| |
Current Topic Rating:  | Join the Forum to Rate this Topic at: www.VNCommodore.com Support Forums
|
|
|
lolo
Fully Licenced
503 Posts
 |
 Posted - 26 Jun 2006 : 10:03:50 PM
|
|
Does anyone know if a V8 thermo fan or any other fan fits an V6 VN an if there are any positives with replacing the current one, performance or otherwise
|
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
|
Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 28 Jun 2006 : 11:10:33 AM
|
I always thought that a thermo fan was one that was electrically driven and cut in only after a certain temperature was reached.
Can't see any reason to change the one that is there, unless of course it isn't working. The cooling system in VN's is about 150% the size (I think) it actually needs to be for that engine. So unless you've got some major mods done, or you spend your entire time stuck in traffic on the rev-limiter (if you do I'll personally take your car off you!), the one that is there should be fine. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
Report to Moderator  |
|
|
James Mongan
P Plater
78 Posts
|
Posted - 28 Jun 2006 : 6:57:09 PM
|
| the cooling system is more than capeable of handeling the v6 but if u really want to upgrade to a twin thermo setup from a vt just cos ya can. but if you are having real cooling probs go all out and get a setup from an Au ford as the blow about 3000cmf of air better than any other stock fans. |
| Report to Moderator |
|
|
lolo
Fully Licenced
503 Posts
|
Posted - 29 Jun 2006 : 01:36:32 AM
|
oh ok I was thinking bout getting a smaller on so I have more room in the engine bay for other mods do you know if any smaller ones will do the job as well
and yes mouce your right about how this works unless ofcourse you thermostat sticks and then you usually end up changing radiator and all |
Marcus Rogulic R.I.P (1980-2007)
"The Good Die Young" |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 29 Jun 2006 : 11:20:14 AM
|
| If all you're after is a little more room, it is possible to trim the fan cowling a little. That would give you a little more room. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 28 Aug 2006 : 2:30:37 PM
|
| does any1 know watthe little copper conductor running into ur rad hose is I assume this 4 ur thermo?there is a little dial that it runs into can any1 help P.s rather than start another thread I thought it would b easier to tag along on this 1!!!! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 28 Aug 2006 : 3:26:10 PM
|
| Where abouts are you looking? Top or bottom hose? Front of the engine or back. If you've got a S1 like me, there's a million miles of bloody radiator hose in the engine bay, at least the cooling system in the VNS1 is better than the system in the VL, but it's still a b!tch to work on. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 28 Aug 2006 : 4:14:27 PM
|
| ok top front running from yhe top of rad,and besides that how do i get my thermo to run all the time with out running straight 2 tha battery? |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 28 Aug 2006 : 5:56:40 PM
|
I haven't got any electrical connections running into there. Not that I can remember anyway, I'll go and have a really good look tomorrow, can't be stuffed right now.
As for how to get it to run all the time, you'd need to wire in a relay that is switched with the ignition, that way you don't need to turn it on/off when you start/stop the car. I will say though, that unless you've got a very specific reason for it, don't do it.
The engine fan takes more than just a couple of amps to run, and places a noticable load on the electrical system, and therefore takes quite a bit of power away from the engine. You'll find that fuel usage will generally climb if the cooling fan is running all the time, also takes longer for the engine to reach operating temperature, which isn't a great thing. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 28 Aug 2006 : 6:16:06 PM
|
| the little thing is bolted on the thermo fan mount point top right there is a copper conductor that runs straight up the top right rad hose..I have never seen them on any other vn, mine is a vn 89 ex but i was goin to run the fan of a on/off switch inside the cab any ideas p.s the reason 4 this is that I'm lazy and realy dont like electronics in cars as its a bit of a maze but this little switch on the rad has sumthing to do with it!!!!I use to haf a tow truck and had twin thermos in it A POXY FORD OF CORSE!!these were turnd on by switch no probs the only thing is I didnt wire it my self!! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 28 Aug 2006 : 7:00:20 PM
|
I'm really not a fan of having a manually controlled cooling fan. I've seen too many people do it trying to save a few dollars and a lot of them have 'forgotten' it and blown their engine.
As for the wire you've got that follows the radiator hose, it's got me stumped. I sure as hell don't have one, so I'm not 100% what it will/may be. If you do want to go down the route of wiring it up to a power supply that is switched with the ignition then I'll help out with a wiring diagram. If the thermo fan isn't working properly though, I'd rather help with getting it working properly again, rather than just rigging up something that's a bit of a band-aid solution.
Auto-electrics aren't that hard to work with, not when you've got the support of a forum like this. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 28 Aug 2006 : 7:21:04 PM
|
| let me have it, we have a temp solution but if u r willing 2 help with a diagram that would be great!!!as there's nothing better than sumthing that works properly!! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 28 Aug 2006 : 9:14:34 PM
|
| Just outta interest (and I'll hopefully get that diagram ready to go tomorrow afternoon/evening), why do you need/want to rig up your thermo fan to run all the time? Is it not working at the moment? |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 28 Aug 2006 : 9:20:41 PM
|
| well in short no it not working and as a temp solution until i get my sh#$ 2gether it was a option(I'm moving house and don't want to get to commited at the moment just did gear box!)so basicly I just need a temp 4 a week and them bak into the old girl properly!! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
MILD50
Fully Licenced
850 Posts
|
Posted - 07 Nov 2006 : 5:53:00 PM
|
Anyone know what the power difference is between the clutch driven fan and a twin thermo set up?
I'm assuming the parasitic loss of running the clutch fan would be noticable? Anyone confirm or deny? |
| Report to Moderator |
|
|
FXST01
P Plater
37 Posts
|
Posted - 09 Nov 2006 : 5:26:51 PM
|
Trizo,
That little copper conductor thing is actually a temperature sender and the clock part is the dial that sets what temp the fan will kick in at. To run the fan all the time you would need to turn the dial fully one way, but i dont know which. |
Illegitimi Non Carborundum |
| Report to Moderator |
|
|
VNSVLE
Forum Moderator
1316 Posts
|
Posted - 11 Nov 2006 : 2:27:28 PM
|
On the subject of replaceing the original thermo i would have to say it would not be a wise choice. I have had quite alot to do with Mud racing(if you are not familiar with this type of racing i would be more than happy to fill in the blanks) and with our cars( i know nobody will like what i am about to say but it has to be said) one ran a 460 FORD big block rear mount inverted(faced backwards witht he radiator on the back of the car) and the other ran a 351 FORD front mounted.
Now the problem with rear mount is lack of air flow and the best way to keep the temp off the red was to use the good old commodore thermo. We found that the way the cowl was designed meant that it pulled alot of air past the core keeping it nice and cool. It was the best way we could find we even tried twin commodore thermos and just a group of quad thermos neither of which worked anywhere near as well.
After saying all that if a bit more room is what you want slightly modifying the top part of your cowl will give you a little more room. |
What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
| Report to Moderator |
|
| |
Topic |
|
Topic Locked
