Rx7 1993 vs Rx8 electric fans
02-11-15, 01:07 AM
#2
The motors and blades are the same as the JDM 1999+ FD3S. To use a 1999+ FD fan assembly all you need to do is re-wire the harness.
I have found them to be quieter. As far as efficiency, who knows...
02-11-15, 06:43 AM
#3
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Thread Starter
You would need to re-wire the harness and re-mount them to the FD support, in a round about way, yes.
The motors and blades are the same as the JDM 1999+ FD3S. To use a 1999+ FD fan assembly all you need to do is re-wire the harness.
I have found them to be quieter. As far as efficiency, who knows...
The motors and blades are the same as the JDM 1999+ FD3S. To use a 1999+ FD fan assembly all you need to do is re-wire the harness.
I have found them to be quieter. As far as efficiency, who knows...
02-11-15, 09:27 PM
#5
If you cannot tell strait away looking at it how to do the wires, find an electrician.
Pic of 99+ fans.
https://www.google.co.jp/search?q=5%...YKwAg#imgdii=_
Pic of 99+ fans.
https://www.google.co.jp/search?q=5%...YKwAg#imgdii=_
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10-23-15, 02:18 PM
#10
Attached are two cooling fan schematics for the 1993 RX7 and a 2008 RX8.
Assuming I want the full functionality of the 1993 RX7 fan relays (there are four of them), I think I need to do the following:
Fan#1 fed by connector B-05:
Bridge the positive (+) feeds from Connector B-05 (Y/W) and (R/W) to the Blue (L) wire of the the RX8 Fan motor #1. Ground will come from bridging (B) wire and (L/O) to Green (G) wire of the RX8 Fan motor#1.
Fan#2 fed by connector B-06:
Bridge the positive (+) feeds from Connector B-06 (Y/W) and (W) to the Red (R) wire of the the RX8 Fan motor #2. Ground will come from bridging (B) wire and (L/O) of connector B-06 to Black (B]) wire of the RX8 Fan motor#2.
However, the schematics show the RX7 fan-motors as 4-poles (two positive; two negative); and the RX8 fan-motors are 2-poles (single positive, and single negative).
Will this cause a problem ? Any back-feeding ? It doesn't seem like to me.
Moreover, before finalizing, I need to verify that adding +12VDC to either the Blue (L) or Red (R) wire of the RX8 fan-motors, will make them rotate in the the correct direction.
Man, nothing is SIMPLE about this car . . . .
:-) neil
PS: here's a mock-up of the wiring, any issues ?
Assuming I want the full functionality of the 1993 RX7 fan relays (there are four of them), I think I need to do the following:
Fan#1 fed by connector B-05:
Bridge the positive (+) feeds from Connector B-05 (Y/W) and (R/W) to the Blue (L) wire of the the RX8 Fan motor #1. Ground will come from bridging (B) wire and (L/O) to Green (G) wire of the RX8 Fan motor#1.
Fan#2 fed by connector B-06:
Bridge the positive (+) feeds from Connector B-06 (Y/W) and (W) to the Red (R) wire of the the RX8 Fan motor #2. Ground will come from bridging (B) wire and (L/O) of connector B-06 to Black (B]) wire of the RX8 Fan motor#2.
However, the schematics show the RX7 fan-motors as 4-poles (two positive; two negative); and the RX8 fan-motors are 2-poles (single positive, and single negative).
Will this cause a problem ? Any back-feeding ? It doesn't seem like to me.
Moreover, before finalizing, I need to verify that adding +12VDC to either the Blue (L) or Red (R) wire of the RX8 fan-motors, will make them rotate in the the correct direction.
Man, nothing is SIMPLE about this car . . . .
:-) neil
PS: here's a mock-up of the wiring, any issues ?
11-04-15, 10:16 PM
#11
If only the thread below had a better title:
https://www.rx7club.com/3rd-generati...grams-1085386/
In short:
:-) neil
https://www.rx7club.com/3rd-generati...grams-1085386/
In short:
:-) neil
11-05-15, 08:11 AM
#12
Does anyone know where I can get the RX8 Series II electrical connectors for the fan other than a junkyard ?
I like that it's a sealed connector unlike the FD's.
BTW: If you want new FD fan electrical connectors, you can get them here:
250 Housing Lance Armlock - ET type Connector with Tangless Terminals
Thanks in advance,
:-) neil
I like that it's a sealed connector unlike the FD's.
BTW: If you want new FD fan electrical connectors, you can get them here:
250 Housing Lance Armlock - ET type Connector with Tangless Terminals
Thanks in advance,
:-) neil
Last edited by M104-AMG; 11-05-15 at 08:41 AM.
12-13-15, 12:29 AM
#14
I am not clear on the effective differences between the two except the connectors.
I think I'm just gonna swap the blades since I'm not experiencing any issues with my motors, but I am planning on swapping the radiator out.
12-15-15, 02:34 PM
#15
I've got a set sitting right of the 2009+ fans
Ill be chopping off the plugs and wiring +2 wires to a positive (off of a high amp relay), and +2 to a ground, and for each fan, for high-speed mode all the time, if this is how it works i assume
Going to give it a shot w/ Koyo N-Flow + RX7 Fanshroud+RX8 Fan blades, on 26b, we'll see if they do a good job!
Ill be chopping off the plugs and wiring +2 wires to a positive (off of a high amp relay), and +2 to a ground, and for each fan, for high-speed mode all the time, if this is how it works i assume
Going to give it a shot w/ Koyo N-Flow + RX7 Fanshroud+RX8 Fan blades, on 26b, we'll see if they do a good job!
03-11-16, 04:31 PM
#17
mixed results here
https://www.rx7club.com/3rd-generati...x7-fd-1085155/
https://www.rx7club.com/3rd-generati...x7-fd-1085155/
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