e-fans
- Thread starter IGottaSy
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Quickstop [UK]
Combating adversyty.
Re: e-fans
The HP you free up goes into driving the alt to put out more current to drive the fans. So you probably need a bigger alt as well.
The HP you free up goes into driving the alt to put out more current to drive the fans. So you probably need a bigger alt as well.
ajt86
Member
Re: e-fans
Only when the fans are running. Unless its a fairly hot day, fans dont run all that often, depending on settings. They run mostly at idle, over 30mph most cars move air through the radiator more efficient than a fan does.
Only when the fans are running. Unless its a fairly hot day, fans dont run all that often, depending on settings. They run mostly at idle, over 30mph most cars move air through the radiator more efficient than a fan does.
Typhoon#747
Donating Member
Re: e-fans
I'll second what ajt86 said. I have a Mark VIII fan connected to a two way switch. High speed works regardless of temp, and low speed is connected to a fan switch on the side of the engine block. I rarely have the need to switch it to high, and the low setting kicks on automatically only in stop and go situations. And when I'm driving in traffic, I'm not worried about losing a few ponies.
I'll second what ajt86 said. I have a Mark VIII fan connected to a two way switch. High speed works regardless of temp, and low speed is connected to a fan switch on the side of the engine block. I rarely have the need to switch it to high, and the low setting kicks on automatically only in stop and go situations. And when I'm driving in traffic, I'm not worried about losing a few ponies.
IGottaSy
Active member
LeBouefM
Donating Member
NAPA ST85 or ST85SB
OR
http://www.grainger.com/product/6C0...17&srccode=cii_5784816&cpncode=35-142589598-2
just what I was reading
OR
http://www.grainger.com/product/6C0...17&srccode=cii_5784816&cpncode=35-142589598-2
just what I was reading
Re: e-fans
This is a bit of a false statement. Slightly more HP will be required to run the alternator than before, but not the same amount that is freed form removing the stock clutch fan. Mostly due to the shape and size of the fan blades themselves.
This is a bit of a false statement. Slightly more HP will be required to run the alternator than before, but not the same amount that is freed form removing the stock clutch fan. Mostly due to the shape and size of the fan blades themselves.
Typhoon#747
Donating Member
Norm
Donating Member
Re: e-fans
why? That isn't going on a John Deere. Way overkill. 2 relays for $6.00 each and some wireing.
why? That isn't going on a John Deere. Way overkill. 2 relays for $6.00 each and some wireing.
IGottaSy
Active member
Re: e-fans
2 relays at 30amps? On the Mark 8? I'm reading 75 amp. If that is the case, truck needs a better alternator for sure with this fan. What is the stock alt rating? 100-105 amp? Hmmm:squint:.
Throw a fuel/inter cooler pump upgrade, plus wideband/EBC/scantool/gauges and a/c plus lights on here in west TEXAS heat and alternator will be almost maxed out prolly. Maybe an electrical savvy person can shed more light on this?
2 relays at 30amps? On the Mark 8? I'm reading 75 amp. If that is the case, truck needs a better alternator for sure with this fan. What is the stock alt rating? 100-105 amp? Hmmm:squint:.
Throw a fuel/inter cooler pump upgrade, plus wideband/EBC/scantool/gauges and a/c plus lights on here in west TEXAS heat and alternator will be almost maxed out prolly. Maybe an electrical savvy person can shed more light on this?
Typhoon#747
Donating Member
Re: e-fans
75 amps current draw from a fan motor? I don think so! Those 30 amp relays would have melted a long time ago. Plus, I have them fused at 30 amps. So the fuses would have popped too. When I get home tomorrow I'll connect my Fluke to the fan and measure current draw on low and high speeds.
2 relays at 30amps? On the Mark 8? I'm reading 75 amp. If that is the case, truck needs a better alternator for sure with this fan. What is the stock alt rating? 100-105 amp? Hmmm:squint:.
Throw a fuel/inter cooler pump upgrade, plus wideband/EBC/scantool/gauges and a/c plus lights on here in west TEXAS heat and alternator will be almost maxed out prolly. Maybe an electrical savvy person can shed more light on this?
75 amps current draw from a fan motor? I don think so! Those 30 amp relays would have melted a long time ago. Plus, I have them fused at 30 amps. So the fuses would have popped too. When I get home tomorrow I'll connect my Fluke to the fan and measure current draw on low and high speeds.
TYRODD
My ass. Look at it.
Re: e-fans
I think the point to be made about electric fans is that they are not worth the HP gain, if there is any.
I installed E-fans for other reasons, the idea that my truck might possibly have 5 more HP was not one of them
I think the point to be made about electric fans is that they are not worth the HP gain, if there is any.
I installed E-fans for other reasons, the idea that my truck might possibly have 5 more HP was not one of them
TYRODD
My ass. Look at it.
Re: e-fans
http://www.amazon.com/Flex---lite-3...9336&sr=8-1&keywords=flexalite+fan+controller
That fan controller has worked fabulously with my ramcharger setup. I have the 12v+ wired through a 30A circuit breaker. If you aren't watching the fans as they turn on, you wouldn't notice. The controller ramps up the fans instead of an instant hit, and then only to 60%. Ramps up to 100% if needed. NO noticeable amp surge with my CS144 alternator.
http://www.amazon.com/Flex---lite-3...9336&sr=8-1&keywords=flexalite+fan+controller
That fan controller has worked fabulously with my ramcharger setup. I have the 12v+ wired through a 30A circuit breaker. If you aren't watching the fans as they turn on, you wouldn't notice. The controller ramps up the fans instead of an instant hit, and then only to 60%. Ramps up to 100% if needed. NO noticeable amp surge with my CS144 alternator.
dgoodhue
BuSTeD 4.3
Re: e-fans
This. I have e-fans for my A2A IC. I would rather have the stock clutch fan and shroud.
I think the point to be made about electric fans is that they are not worth the HP gain, if there is any.
I installed E-fans for other reasons, the idea that my truck might possibly have 5 more HP was not one of them
This. I have e-fans for my A2A IC. I would rather have the stock clutch fan and shroud.
SY2932
Administrator
Re: e-fans
/
X4. I wanted clean things up a bit and make my truck a *little* easier to work on:
I installed the now discontinued Flaxalite 210 dual fans five years ago. They were a direct fit, almost like they were made for the truck.
/
I think the point to be made about electric fans is that they are not worth the HP gain, if there is any.
I installed E-fans for other reasons, the idea that my truck might possibly have 5 more HP was not one of them
X4. I wanted clean things up a bit and make my truck a *little* easier to work on:
I installed the now discontinued Flaxalite 210 dual fans five years ago. They were a direct fit, almost like they were made for the truck.
IGottaSy
Active member
Re: e-fans
Good enough!
Plenty of space for a nice custom plumbing for CAI. Thanks for the pics.
/
X4. I wanted clean things up a bit and make my truck a *little* easier to work on:
I installed the now discontinued Flaxalite 210 dual fans five years ago. They were a direct fit, almost like they were made for the truck.
Good enough!
Plenty of space for a nice custom plumbing for CAI. Thanks for the pics.
BoostedSUV
Active member
Re: e-fans
I just installed dual intrepid fans with a flex-a-life fan controller. Works awesome and I'm very happy with it.
I just installed dual intrepid fans with a flex-a-life fan controller. Works awesome and I'm very happy with it.