Which electric fan to get?
03-19-15, 04:58 PM
#1
Which electric fan to get?
I need to replace my fan. I think I'm going to go the electric route instead of staying stock.
I need to know what electric fan will work with my setup. -- I'm going to stay away from sourcing used fans out of old cars as I want to limit the chances of it crapping out on me on the road.
I've got an 88 TII with a hybrid turbo that will be pushing 350 hp once I get it tuned.
Koyo radiator, FMIC, AC.
I need to know what electric fan will work with my setup. -- I'm going to stay away from sourcing used fans out of old cars as I want to limit the chances of it crapping out on me on the road.
I've got an 88 TII with a hybrid turbo that will be pushing 350 hp once I get it tuned.
Koyo radiator, FMIC, AC.
03-19-15, 05:28 PM
#2
Seriously get the Ford Taurus fan. If you feel better about it, buy a new replacement motor for it.
Or, do as I'm doing, wait til it dies.. ..but even if it did it's 2-speed and all you'd have to do is switch
the speed til you get a replacement motor.
This fan is on steroids. I make 400whp with A/C in Houston in summer. I have a switch in the car
that allows the ecu to either turn on the fan in low or high speed.
Keep in mind I have a front mount and A/C condenser to go through before the air reaches my
radiator. With that being said that fan pulls like crazy through all layers. I have foam between
edges of the condenser and the rad.
It is NOT a drop in but its really easy to trim the shroud flat using a body saw from Harbor Freight.
(Electric saw works great by the way) Once I got the general shape, I used the rough flat concrete floor
in my garage to file it perfectly flat. Then I followed it up with a fine file. I drilled 4 holes
to zip tie it to the tabs on the rad brackets. This holds it very strong.
I purchased a light weight adhesive foam roll from the Depot. 1/4"X1" between the fan and rad.
Wiring is a 3-wire common ground with one wire for high and the other for low.
The pic is my NEW Koyo.. I never had a single issue with the stock rad but it was 27
years old and the plastic looked brittle. So, I changed it to be proactive.
Or, do as I'm doing, wait til it dies.. ..but even if it did it's 2-speed and all you'd have to do is switch
the speed til you get a replacement motor.
This fan is on steroids. I make 400whp with A/C in Houston in summer. I have a switch in the car
that allows the ecu to either turn on the fan in low or high speed.
Keep in mind I have a front mount and A/C condenser to go through before the air reaches my
radiator. With that being said that fan pulls like crazy through all layers. I have foam between
edges of the condenser and the rad.
It is NOT a drop in but its really easy to trim the shroud flat using a body saw from Harbor Freight.
(Electric saw works great by the way) Once I got the general shape, I used the rough flat concrete floor
in my garage to file it perfectly flat. Then I followed it up with a fine file. I drilled 4 holes
to zip tie it to the tabs on the rad brackets. This holds it very strong.
I purchased a light weight adhesive foam roll from the Depot. 1/4"X1" between the fan and rad.
Wiring is a 3-wire common ground with one wire for high and the other for low.
The pic is my NEW Koyo.. I never had a single issue with the stock rad but it was 27
years old and the plastic looked brittle. So, I changed it to be proactive.
03-19-15, 06:41 PM
#3
Seriously get the Ford Taurus fan. If you feel better about it, buy a new replacement motor for it.
Or, do as I'm doing, wait til it dies.. ..but even if it did it's 2-speed and all you'd have to do is switch
the speed til you get a replacement motor.
This fan is on steroids. I make 400whp with A/C in Houston in summer. I have a switch in the car
that allows the ecu to either turn on the fan in low or high speed.
Keep in mind I have a front mount and A/C condenser to go through before the air reaches my
radiator. With that being said that fan pulls like crazy through all layers. I have foam between
edges of the condenser and the rad.
It is NOT a drop in but its really easy to trim the shroud flat using a body saw from Harbor Freight.
(Electric saw works great by the way) Once I got the general shape, I used the rough flat concrete floor
in my garage to file it perfectly flat. Then I followed it up with a fine file. I drilled 4 holes
to zip tie it to the tabs on the rad brackets. This holds it very strong.
I purchased a light weight adhesive foam roll from the Depot. 1/4"X1" between the fan and rad.
Wiring is a 3-wire common ground with one wire for high and the other for low.
The pic is my NEW Koyo.. I never had a single issue with the stock rad but it was 27
years old and the plastic looked brittle. So, I changed it to be proactive.
Or, do as I'm doing, wait til it dies.. ..but even if it did it's 2-speed and all you'd have to do is switch
the speed til you get a replacement motor.
This fan is on steroids. I make 400whp with A/C in Houston in summer. I have a switch in the car
that allows the ecu to either turn on the fan in low or high speed.
Keep in mind I have a front mount and A/C condenser to go through before the air reaches my
radiator. With that being said that fan pulls like crazy through all layers. I have foam between
edges of the condenser and the rad.
It is NOT a drop in but its really easy to trim the shroud flat using a body saw from Harbor Freight.
(Electric saw works great by the way) Once I got the general shape, I used the rough flat concrete floor
in my garage to file it perfectly flat. Then I followed it up with a fine file. I drilled 4 holes
to zip tie it to the tabs on the rad brackets. This holds it very strong.
I purchased a light weight adhesive foam roll from the Depot. 1/4"X1" between the fan and rad.
Wiring is a 3-wire common ground with one wire for high and the other for low.
The pic is my NEW Koyo.. I never had a single issue with the stock rad but it was 27
years old and the plastic looked brittle. So, I changed it to be proactive.
03-19-15, 06:52 PM
#5
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i'd be tempted to go with something like these, just stock Rx8 fans
03-19-15, 07:10 PM
#7
i'd be tempted to go with something like these, just stock Rx8 fans Amazon.com: Depo 316-55037-000 Mazda RX8 Replacement Dual Function Cooling Fan Assembly: Automotive
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03-19-15, 07:17 PM
#8
Mach- that doesn't look like a typical taurus fan, the taurus shroud usually covers more usually only needs trimming by the upper radiator hose. I didnt trim mine what i did was heat the area and using a 2" pipe shaped it to fit around the hose
Freq- it is your best bet. Like i said in the other thread i bought a brand new taurus replacement and the motor and wiring were half the size of the OEM unit.
Freq- it is your best bet. Like i said in the other thread i bought a brand new taurus replacement and the motor and wiring were half the size of the OEM unit.
03-19-15, 08:01 PM
#9
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i'm not sure, i see there is an aftermarket kit with a sensor and 2 relays though. my reasoning is that those fans work on an FD, and an Rx8, they should be fine on an FC too.
the FD has a kind of involved setup, and the Rx8 must be simpler, although its hard to tell as the fans don't run much
the FD has a kind of involved setup, and the Rx8 must be simpler, although its hard to tell as the fans don't run much
Last edited by j9fd3s; 03-19-15 at 08:04 PM.
03-19-15, 08:18 PM
#10
Information Regurgitator
What year/years Taurus fans is everybody using. I keep hearing about them but have never caught that it seems. If/when my current E-fan dies I may try this Taurus one everybody is so proud of.
03-19-15, 10:01 PM
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03-20-15, 08:10 AM
#12
The EOTWAWKI Fan is the MIghty Lincoln Mark VIII in two-speed. It'll suck golf ***** through a soda straw.
BTW, I use the Lincoln Mark VIII on my Vert these days. I use low-speed for cooling on a 195* thermo-switch. It is wired to run high-speed whenever the A/C compressor runs. The system runs pretty much transparently these days with no thought or input from me.
From the be all end all thead:
Time to revisit this thread. I have been running this fan for a little over one year. I have the two speed action set up as follows: low-speed on temperature at 195* off at 180* and high-speed runs only with the A/C compressor. When I was using the Taurus fan in this two speed mode, NO PROBLEMO on temps year round for 2 years. When I switched the Mighty Mark VIII, the temps never varied, but neither did the roaring fan sound. 
I switched to this Villager fan last fall . At first I noticed very little change, but since spring I have been been unhappy with my temps. I have worried about the Griffin radiator, my use of Evans Coolant, my use of R152a etc. as reasons my temps were out of control. 220*-230* had become the norm. On hot days, I quit driving the car as the temps were wholly unacceptable.
This last week, my heater hose began leaking so I replaced it. While I was under the hood, I realized that the only thing changed was the fan. So I moved the high speed fan wire to the temperature controlled relay.
Bam! All weekend, temps never varied from 185*. Even 85 mph on the highway, whip off the interstate and idle=185*.
What's the take home on this?
1.) If you use this fan, don't bother with low speed unless you have a sophisticated control system that stages the speeds at increasing temps.
2.) The high speed on this fan likely pulls nearly the same or slightly more air than low speed on the Taurus fan, based on both my temperature experiences and the measured amperage draw.
3.) Low amperage draw fans may not have the static pressure capacity for extra thick radiator cores, like my 3" Griffin.
I am probably going to change to a dual-pass rad and a PWM controller with the Mighty Mark VIII or a Taurus fan when the Vert goes Turbo.
I switched to this Villager fan last fall . At first I noticed very little change, but since spring I have been been unhappy with my temps. I have worried about the Griffin radiator, my use of Evans Coolant, my use of R152a etc. as reasons my temps were out of control. 220*-230* had become the norm. On hot days, I quit driving the car as the temps were wholly unacceptable.
This last week, my heater hose began leaking so I replaced it. While I was under the hood, I realized that the only thing changed was the fan. So I moved the high speed fan wire to the temperature controlled relay.
Bam! All weekend, temps never varied from 185*. Even 85 mph on the highway, whip off the interstate and idle=185*.
What's the take home on this?
1.) If you use this fan, don't bother with low speed unless you have a sophisticated control system that stages the speeds at increasing temps.
2.) The high speed on this fan likely pulls nearly the same or slightly more air than low speed on the Taurus fan, based on both my temperature experiences and the measured amperage draw.
3.) Low amperage draw fans may not have the static pressure capacity for extra thick radiator cores, like my 3" Griffin.
I am probably going to change to a dual-pass rad and a PWM controller with the Mighty Mark VIII or a Taurus fan when the Vert goes Turbo.
Last edited by jackhild59; 03-20-15 at 08:13 AM.
03-20-15, 08:20 AM
#13
Seriously get the Ford Taurus fan. If you feel better about it, buy a new replacement motor for it.
Or, do as I'm doing, wait til it dies.. ..but even if it did it's 2-speed and all you'd have to do is switch
the speed til you get a replacement motor.
This fan is on steroids. I make 400whp with A/C in Houston in summer. I have a switch in the car
that allows the ecu to either turn on the fan in low or high speed.
Keep in mind I have a front mount and A/C condenser to go through before the air reaches my
radiator. With that being said that fan pulls like crazy through all layers. I have foam between
edges of the condenser and the rad.
It is NOT a drop in but its really easy to trim the shroud flat using a body saw from Harbor Freight.
(Electric saw works great by the way) Once I got the general shape, I used the rough flat concrete floor
in my garage to file it perfectly flat. Then I followed it up with a fine file. I drilled 4 holes
to zip tie it to the tabs on the rad brackets. This holds it very strong.
I purchased a light weight adhesive foam roll from the Depot. 1/4"X1" between the fan and rad.
Wiring is a 3-wire common ground with one wire for high and the other for low.
The pic is my NEW Koyo.. I never had a single issue with the stock rad but it was 27
years old and the plastic looked brittle. So, I changed it to be proactive.
Or, do as I'm doing, wait til it dies.. ..but even if it did it's 2-speed and all you'd have to do is switch
the speed til you get a replacement motor.
This fan is on steroids. I make 400whp with A/C in Houston in summer. I have a switch in the car
that allows the ecu to either turn on the fan in low or high speed.
Keep in mind I have a front mount and A/C condenser to go through before the air reaches my
radiator. With that being said that fan pulls like crazy through all layers. I have foam between
edges of the condenser and the rad.
It is NOT a drop in but its really easy to trim the shroud flat using a body saw from Harbor Freight.
(Electric saw works great by the way) Once I got the general shape, I used the rough flat concrete floor
in my garage to file it perfectly flat. Then I followed it up with a fine file. I drilled 4 holes
to zip tie it to the tabs on the rad brackets. This holds it very strong.
I purchased a light weight adhesive foam roll from the Depot. 1/4"X1" between the fan and rad.
Wiring is a 3-wire common ground with one wire for high and the other for low.
The pic is my NEW Koyo.. I never had a single issue with the stock rad but it was 27
years old and the plastic looked brittle. So, I changed it to be proactive.
Thanks!
Jack
03-20-15, 03:16 PM
#15
To answer the two questions.
Yes the fan used to cover better on the stock radiator. But now I have the 89' N-Flo and there is some gap cause the tanks are now on the side instead of the top and bottom.
The alternator is the Quality Power Auto CS144 200amp 130 amp@idle, strait across ears, 1-wire 16vdc capable reg. and I think it has a pulley 2.5" I trimmed about 1/2" off of one of the ears. I ran 16vdc battery for a while..
I just looked it up on their website and it's $345 but last year I paid $200 shipped! It might be worth a call to see if you can get a better deal. The 2 guys are awesome and have spectacular customer service.
Yes the fan used to cover better on the stock radiator. But now I have the 89' N-Flo and there is some gap cause the tanks are now on the side instead of the top and bottom.
The alternator is the Quality Power Auto CS144 200amp 130 amp@idle, strait across ears, 1-wire 16vdc capable reg. and I think it has a pulley 2.5" I trimmed about 1/2" off of one of the ears. I ran 16vdc battery for a while..
I just looked it up on their website and it's $345 but last year I paid $200 shipped! It might be worth a call to see if you can get a better deal. The 2 guys are awesome and have spectacular customer service.
03-20-15, 03:57 PM
#16
To answer the two questions.
Yes the fan used to cover better on the stock radiator. But now I have the 89' N-Flo and there is some gap cause the tanks are now on the side instead of the top and bottom.
The alternator is the Quality Power Auto CS144 200amp 130 amp@idle, strait across ears, 1-wire 16vdc capable reg. and I think it has a pulley 2.5" I trimmed about 1/2" off of one of the ears. I ran 16vdc battery for a while..
I just looked it up on their website and it's $345 but last year I paid $200 shipped! It might be worth a call to see if you can get a better deal. The 2 guys are awesome and have spectacular customer service.
Yes the fan used to cover better on the stock radiator. But now I have the 89' N-Flo and there is some gap cause the tanks are now on the side instead of the top and bottom.
The alternator is the Quality Power Auto CS144 200amp 130 amp@idle, strait across ears, 1-wire 16vdc capable reg. and I think it has a pulley 2.5" I trimmed about 1/2" off of one of the ears. I ran 16vdc battery for a while..
I just looked it up on their website and it's $345 but last year I paid $200 shipped! It might be worth a call to see if you can get a better deal. The 2 guys are awesome and have spectacular customer service.
03-20-15, 11:22 PM
#20
When searching for taurus fans, this fan kept coming up .. http://www.summitracing.com/parts/rnb-620-133
Will this work?
Will this work?
I think that Rob had poor experience buying a new non-OEM Taurus fan.
03-23-15, 04:25 PM
#24
i have one of these as well, it looked like it needed trimming and i never got around to an upgraded alternator.. so i put it in my spare parts" pile "
my issue was that i moved my engine back 2 inches, and the fan wasnt inside the shroud well enough, so i moved the rad/shroud back 2 inches as well and it fixed the problem. this is on my rx8-6speed vert...
the quest fan looks powerful as a Taurus fan. the one i have caught my eye because it was a recently installed part(very new looking) and then the car was wrecked and sent to the you-pull-it.
my issue was that i moved my engine back 2 inches, and the fan wasnt inside the shroud well enough, so i moved the rad/shroud back 2 inches as well and it fixed the problem. this is on my rx8-6speed vert...
the quest fan looks powerful as a Taurus fan. the one i have caught my eye because it was a recently installed part(very new looking) and then the car was wrecked and sent to the you-pull-it.
03-26-15, 09:57 PM
#25
I'm running this fan on my v-mount and like it a lot:
https://webstore.spalusa.com/en-us/p...-12v-dual.aspx
https://webstore.spalusa.com/en-us/p...-12v-dual.aspx
Last edited by eage8; 03-26-15 at 10:01 PM.