i heard its soft on ur pocket!!?
#26
B O R I C U A
iTrader: (14)
Originally posted by NZConvertible
I keep having to say this! The fan is only there for when there's not enough airflow from forward movement to provide sufficient cooling! There is absolutely no need to run an electric fan all the time, even in Florida. All you're doing is stressing the electrical system. You're not increasing the cooling because at speed the air being pushed through the radiator is far more than the fan can move. Any power gain from removing the mechanical fan is also lost because of the extra load the alternator is placing on the engine.
I keep having to say this! The fan is only there for when there's not enough airflow from forward movement to provide sufficient cooling! There is absolutely no need to run an electric fan all the time, even in Florida. All you're doing is stressing the electrical system. You're not increasing the cooling because at speed the air being pushed through the radiator is far more than the fan can move. Any power gain from removing the mechanical fan is also lost because of the extra load the alternator is placing on the engine.
Now when you say @ speed the air being pushed through the radiator is far more than the fan can move; that is actually a debatable sentence, define @ what speed.
Now picture this scenario, a 10 mph traffic jam, during a hot, humid, sunny day, with temps above 95, do you think your theory will work here? Do you think the e fan will put more stress to the vehicle than the stock one?
As I said before, the sentence is debatable, and we can probably bs this issue for quite some time
How can you lost power because of the extra load on the alternator? Does that mean that when you add a amplifier to your sound system you are actually losing hp?
Don't think so!
#27
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
Originally posted by KNONFS
...but I don't think yanking a an electric fan from a junker is a good option at all either.
...but I don't think yanking a an electric fan from a junker is a good option at all either.
I a firm believer of doing things right the first time, know what I mean?
Now when you say @ speed the air being pushed through the radiator is far more than the fan can move; that is actually a debatable sentence, define @ what speed
Now picture this scenario, a 10 mph traffic jam, during a hot, humid, sunny day, with temps above 95, do you think your theory will work here? Do you think the e fan will put more stress to the vehicle than the stock one?
How can you lost power because of the extra load on the alternator? Does that mean that when you add a amplifier to your sound system you are actually losing hp?
My point was at a constant speed the stock fan is still drawing a small amount of engine power (clutch fans don’t entirely disengage), so an electric fan running constantly will have about the same effect. So you’ve lost part of the advantage of having an electric fan.
Bottom line: an electric fan without a thermostat is a waste of time.
#28
I came, I saw, I boosted.
Join Date: Apr 2001
Location: Windsor, Ontario, Canada
Posts: 1,921
Likes: 0
Received 0 Likes
on
0 Posts
Amplifier?? Actually, YES!!
It's only a fraction of a HP though.
Ever notice how your revs drop very slightly for a split second when you flip the headlights on? That's because the alternator is being spun in a much stronger magnetic field.. it's harder to turn.
If your amp is powerfulll enough, you will see your revs drop slightly when the bass hits....
I have to STRONGLY dissagree with NZ though.... there is a measurable gain to be had with an electric fan.
The mechanical one, even though it's limited by a viscous clutch, still generates much more parasitic drag on the engine than the electric one.
The electrical power is more effecient than the drive off the engine... (as illogical as that acutally sounds)
It does fee up tons of room under the hood though.
Also- make sure you get one with a shroud, or make one.
I have mine hooked up thermostatically, and to a constant power. It only goes on when I've been sitting in traffic. As soon as I'm moving, it's off in a few seconds.
**IMPORTANT** To those with A/C.... You MUST hook the fan power up to the A/C clutch- so it goes on whenever the air goes on. Otherwise, you will blow all the freon out of the system, and your won't be blowing cold air!
It's only a fraction of a HP though.
Ever notice how your revs drop very slightly for a split second when you flip the headlights on? That's because the alternator is being spun in a much stronger magnetic field.. it's harder to turn.
If your amp is powerfulll enough, you will see your revs drop slightly when the bass hits....
I have to STRONGLY dissagree with NZ though.... there is a measurable gain to be had with an electric fan.
The mechanical one, even though it's limited by a viscous clutch, still generates much more parasitic drag on the engine than the electric one.
The electrical power is more effecient than the drive off the engine... (as illogical as that acutally sounds)
It does fee up tons of room under the hood though.
Also- make sure you get one with a shroud, or make one.
I have mine hooked up thermostatically, and to a constant power. It only goes on when I've been sitting in traffic. As soon as I'm moving, it's off in a few seconds.
**IMPORTANT** To those with A/C.... You MUST hook the fan power up to the A/C clutch- so it goes on whenever the air goes on. Otherwise, you will blow all the freon out of the system, and your won't be blowing cold air!
#29
Information Regurgitator
Originally posted by Bambam7
**IMPORTANT** To those with A/C.... You MUST hook the fan power up to the A/C clutch- so it goes on whenever the air goes on. Otherwise, you will blow all the freon out of the system, and your won't be blowing cold air!
**IMPORTANT** To those with A/C.... You MUST hook the fan power up to the A/C clutch- so it goes on whenever the air goes on. Otherwise, you will blow all the freon out of the system, and your won't be blowing cold air!
Oh well maybe that's why I only get warm air this year.But if i'm in traffic and the A/C is on I usually turn my fan on with the switch I have tha bypasses the thermostat.
#30
boost on the way(GTU II)
Thread Starter
my bro in law that has owned many 7's an fb an fc and owns an fd said its nor good to have an efan for stress on the electric system and doesnt really do n e thing for u except clear space lol but im in florida and im thinkin of the thermo switch from a local parts store and from that what do i do ? ???
#31
B O R I C U A
iTrader: (14)
Originally posted by NZConvertible
Why not? Assuming you get an adequately sized one, why wouldn’t it work just as well on your car as it obviously did on the car it came off?
Why not? Assuming you get an adequately sized one, why wouldn’t it work just as well on your car as it obviously did on the car it came off?
Originally posted by NZConvertible
But you think running a fan without a thermostat is OK?
But you think running a fan without a thermostat is OK?
Originally posted by NZConvertible
Well it has been proven. Why do you think all cars made in the last couple of decades use clutch fans instead of fixed ones, or have thermostatically controlled electrical fans? The speed at which the fan becomes unnecessary will be different for every car.
Well it has been proven. Why do you think all cars made in the last couple of decades use clutch fans instead of fixed ones, or have thermostatically controlled electrical fans? The speed at which the fan becomes unnecessary will be different for every car.
Originally posted by NZConvertible
I don’t remember saying it would, but we’re not talking about the stock fan, we’re talking about an electric one. If that fan has a thermostat, it will simply operate for a long and as often as required to keep the car cool. If the fan has to run all the time, it’s too small or something else is wrong with the cooling system.
I don’t remember saying it would, but we’re not talking about the stock fan, we’re talking about an electric one. If that fan has a thermostat, it will simply operate for a long and as often as required to keep the car cool. If the fan has to run all the time, it’s too small or something else is wrong with the cooling system.
Originally posted by NZConvertible
Are you kidding? What do you think drives the alternator? The engine! All electrical loads use engine power. Why do you think the idle speed drops when you turn your lights on? So yes, that amplifier does cost engine power.
My point was at a constant speed the stock fan is still drawing a small amount of engine power (clutch fans don’t entirely disengage), so an electric fan running constantly will have about the same effect. So you’ve lost part of the advantage of having an electric fan.
Are you kidding? What do you think drives the alternator? The engine! All electrical loads use engine power. Why do you think the idle speed drops when you turn your lights on? So yes, that amplifier does cost engine power.
My point was at a constant speed the stock fan is still drawing a small amount of engine power (clutch fans don’t entirely disengage), so an electric fan running constantly will have about the same effect. So you’ve lost part of the advantage of having an electric fan.
Last edited by KNONFS; 06-07-02 at 07:30 AM.
#32
Full Member
Join Date: Mar 2002
Location: Burlington, NC
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
Check here http://www.rx7.voodoobox.net
Look under How To. He has a pretty good tutorial type deal for installing an electric fan and includes some pictures and a specific section on wiring.
Look under How To. He has a pretty good tutorial type deal for installing an electric fan and includes some pictures and a specific section on wiring.
#33
Rotary Enthusiast
Join Date: Apr 2002
Location: Redmond, WA
Posts: 1,122
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by KNONFS
As far as I know, you need the alternator wether you have a E fan or not, so you already loose all the power you were to loose with the alternator. With a E-fan, amp, etc you are putting more stress on the alternator itself and not on the engine.
As far as I know, you need the alternator wether you have a E fan or not, so you already loose all the power you were to loose with the alternator. With a E-fan, amp, etc you are putting more stress on the alternator itself and not on the engine.
#34
Junior Member
Join Date: Mar 2002
Location: South Jersey
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
#35
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
Originally posted by KNONFS
I was actually talking the about the speed the car needs to be moving in order to surpass the need of a fan (either mech or electrical). In a rotary engine, I assure you is far from the rest of the cars.
I was actually talking the about the speed the car needs to be moving in order to surpass the need of a fan (either mech or electrical). In a rotary engine, I assure you is far from the rest of the cars.
With a E-fan, amp, etc you are putting more stress on the alternator itself and not on the engine.
#36
I got a fiero fan it is on a switch, the air flow works good by itself as long as you are over 30 mph and under about 75mph. When driving on a highway I must use my elec fan or my temp will rise to 3/4. I like it atleast at 1/2 mark or under. It is attached to my radiator with zip ties and works well.
Thread
Thread Starter
Forum
Replies
Last Post
ls1swap
3rd Generation Specific (1993-2002)
17
06-03-24 03:25 PM