Has anyone ever removed there manual radiator fan and replaced it with thermos. I am thinking of buying a full set of alloy pullys and I don't really see the point of them if the heavy steel fan and clutch system are still fitted. So I was thinking of fitting a couple of thermos and while I am making custom firbeglass bits I would make a housing to mount the thermos on. I am thinking that the thermos might overload the electrical systems. Any help would be appreciated. Jamie
Did the exercise on an LC Torana. Think a few people out there have done it to a Zed. Electrical load of fan should not be an issue. Think of all the high load circuits that are there but not in use most of the time - rear demister, highbeam, aircon fan on high. Alternator will just run at a slightly higher charging rate for a bit longer. Main issues are where you mount in the temp sensor and what air volume you want to move. Cheers, Dean
Did this to mine a while back but did have a good temp gauge to watch the engine temps. Main issue is getting enough air through as the stock fan flows alot I believe. Got a good temp gauge now and will be putting the thermo back in soon and are working on mine to have the front fan working to. Does make a difference to the torque and power of the engine and is quite noticeable, just got to get the time to do it as working on the clutch ATM. Get a big fan with a good flow. MattB
Don't skimp on the CFM rating of the new fan, the stock one puts out over 6000CFM at full noise. Do your homework on this mod. I've read a few stories of melted engines from overheating caused by insufficient rating CFM fans. Get the absolute biggest bugger you can fit in there, don't skimp on the cost and don't take the word of a auto spare parts counter jockey who says "yeah, give that one a go mate".
I'm thinking of putting a thermo fan on my zed I had one on my N/A and had no worries, and that was with a stock radiator. I figure if I put a 40mm Alloy Radiator in my car it should be ok. Was thinking of fitting a 16inch Davies craig fan. I've heard the belt driven fan moves alot more air but what about at idle? would'nt the stock fan move all the air at higher revs? A Thermo will come on when you are sitting at the traffic lights which is probably when you need it most:thumbsup:
Re: I'm thinking of putting a thermo fan on my zed I too have been contemplating this. I have a new PWR twin flow 40mm radiator coming this week. They are putting the mount points on for a thermo fan should I decide to do it later. I guess if you have a reliable aftermarket temp gauge or conz(s)ult you could experiment to see if it worked OK. I would be interested what the actual specs are in CFM for the engine fan (when the clutch is locked) at idle, and also other rev points up to 6000rpm. Could we assume 1 CFM per RPM ie 6000CFM at 6000RPM??? :zlove:
your guess is as good as mine I think the bigger the radiator the better:thumbsup::thumbsup::thumbsup: I must get a rad soon... I'm sick of nursing my car around (especially in the hot weather) As far as air flow goes... I think the thermo fan will be more affective because of the work it can do when the car is stationary compared to the stock fan You could always hold the revs at about 6,000rpm when your sitting at the lights to make the fan spin faster:LOL::LOL::LOL:
Am sure that the huge CFM of the stock fan is at full noise so 1 CFM per RPM is probably right but in the extensive searching I did, all I could find was the 6000+CFM figure . Very keen to hear any success stories with aftermarket electric fans...
Yes right!!! bigger rad? I would question the wisdom of that statment as there is more to cooling a car than the size of the radiator.
