Is anyone running the newer OEM Rad Fans (7 and 5 blade)
#1
Original Gangster/Rotary!
Thread Starter
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Is anyone running the newer OEM Rad Fans (7 and 5 blade)
Saw them on this link, pretty reasonably priced actually.
http://www.jt-imports.com/Mazda_FD_JDM_Parts.htm
Has anyone installed these suckers? Might not be a bad idea for road racers.
http://www.jt-imports.com/Mazda_FD_JDM_Parts.htm
Has anyone installed these suckers? Might not be a bad idea for road racers.
#2
Full Member
kind of related- I have seen JT Imports before, but being new to this- they are new to me . I was nervous about using them since they were in Japan. Are they a trustworthy source? I'm sure they are well known and reputable to you guys- if so, I apologize- but like I said, they are new to me so I am just checking. Thanks.
Joe
Joe
#3
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Originally Posted by kwiktsi
kind of related- I have seen JT Imports before, but being new to this- they are new to me . I was nervous about using them since they were in Japan. Are they a trustworthy source? I'm sure they are well known and reputable to you guys- if so, I apologize- but like I said, they are new to me so I am just checking. Thanks.
Joe
Joe
Also, Rich, I remember a thread either on this forum or that other shitty one where people bought them. I am not too sure if any "real" data ever came out of it other than hearsay.
#4
Originally Posted by kwiktsi
kind of related- I have seen JT Imports before, but being new to this- they are new to me . I was nervous about using them since they were in Japan. Are they a trustworthy source? I'm sure they are well known and reputable to you guys- if so, I apologize- but like I said, they are new to me so I am just checking. Thanks.
Joe
Joe
We have a forum just for these types of questions.
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#9
From memory.
7 blade is 70
5 blade is 35
I think that's it, give or take a couple bucks.
I also have the 5 blade fan. I ran the fans on high with the 5/7 setup and the 7 blade obviously pulls significantly more air.
7 blade is 70
5 blade is 35
I think that's it, give or take a couple bucks.
I also have the 5 blade fan. I ran the fans on high with the 5/7 setup and the 7 blade obviously pulls significantly more air.
#11
Super Snuggles
Originally Posted by twinturboteddy
I am running 2 7 blade fans.
Edit: Never mind, thought this was the multi-page thread on the same subject and didn't bother to look at the top of the page where the link to JT Imports was posted. I think I'll try a couple 7 blade fans too. Anyone need a pair of brand spanking new U.S. fans, never installed, still in boxes?
Last edited by jimlab; 09-02-04 at 04:44 PM.
#13
2/4 wheel cornering fiend
In my opinion, if you have to depend on fans in an attempt to control coolant temps (the stockers work just fine in traffic), you have other issues with your cooling system that need addressing.
#14
Super Snuggles
Originally Posted by Kento
In my opinion, if you have to depend on fans in an attempt to control coolant temps (the stockers work just fine in traffic), you have other issues with your cooling system that need addressing.
#16
2/4 wheel cornering fiend
Originally Posted by jimlab
Why wouldn't you take advantage of a fan arrangement that increased airflow through the radiator core?
#17
Do it right, do it once
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Originally Posted by Kento
In my opinion, if you have to depend on fans in an attempt to control coolant temps (the stockers work just fine in traffic), you have other issues with your cooling system that need addressing.
Maybe it is a electrical load thing, maybe not. If the factory spent $$ to change them and they aren't cheaper to produce (like many 94+ changes) then it probably is a decent upgrade.
Jeff
#18
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Mazda changed the fan design because they felt that the older fans pulled too much amperage (25 amps vs. the newer fan motors at 19 amps) AND the fact that the older fans weren't a good enough job of cooling.
#19
Rotary Enthusiast
Originally Posted by jspecracer7
Mazda changed the fan design because they felt that the older fans pulled too much amperage (25 amps vs. the newer fan motors at 19 amps) AND the fact that the older fans weren't a good enough job of cooling.
5.8-11.8 ... slow
6.5-12.5 ... med
10.6-16.6 ... fast
Mazda upgrade could still be less amps, less noise, slightly more flow.
If you want better temp control in hot traffic with ac, don't underdrive the waterpump, and don't let HOT coolant bypass the radiator ..... put a .07" pill in amy alum ast, and put a shut off valve/plug in the heater return line (bottom snout of wp hsg).
#20
Cheap Bastard
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Originally Posted by jimlab
Why wouldn't you take advantage of a fan arrangement that increased airflow through the radiator core?
Of course, there are others who have the time and money to do this even if it doesn't really do much. Some of them will break or disconnect something in the process, and wind up worse off than they started ........... just because they couldn't leave well enough alone
#21
RX-7 Bad Ass
iTrader: (55)
Originally Posted by jspecracer7
Mazda changed the fan design because they felt that the older fans pulled too much amperage (25 amps vs. the newer fan motors at 19 amps) AND the fact that the older fans weren't a good enough job of cooling.
Regardless, I'm with Jeff - if Mazda improved it, it's definitely for a reason.
Dale
#22
Recovering Milkaholic
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Originally Posted by Kento
In my opinion, if you have to depend on fans in an attempt to control coolant temps (the stockers work just fine in traffic), you have other issues with your cooling system that need addressing.
Last edited by Fd3BOOST; 09-04-04 at 01:25 PM.
#23
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Originally Posted by dcfc3s
Aren't the fans that are sold at JT Imports just the plastic fan blade themselves - no motor? Or, does it just decrease the load the motor pulls, so the same motor pulls less amperage for the same or better cooling?
Regardless, I'm with Jeff - if Mazda improved it, it's definitely for a reason.
Dale
Regardless, I'm with Jeff - if Mazda improved it, it's definitely for a reason.
Dale
I don't mean to throw another wrench into the argument... Just playing Devil's Advocate to the group, I'm not attacking anyone's opinions here. I'm not claiming to have any answers of course, so don't flame me.
But is that reason better airflow, or better motor longevity (at the cost of airflow), etc.?
I was wondering how different the blade design is, side-by-side. More/less pitch/curvature? Surface area differences? And did they actually change the motor with the blade in the new design?
Did the JDM vehicles with these have different temperature switching points for the respective fan speeds? Maybe, for example, our fans are optimized to run at high-fan-speed for most of their operational life; whereas, the new fan design is meant to be run more often at "low" speed... or vice-versa?
I just don't see it as a simple "more blades=better fan" argument, even though that likely is the case. We're dealing with fanspeed, flow, pressure, and DC motors that really prefer to work at certain RPMs for effeciency reasons. Constructive comments? Be civil, now
#25
Hey, where did my $$$ go?
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The way I see it is if its Mazda changed to this fan then surely its not going to hurt anything. That being the case I think if someone wants them, then get them.....if you dont want them, then dont get them. Why does anyone really care if other people buy different fan blades or not? I sure as hell dont care. Its not something that needs to be justified, if someone wants them then get them who the hell cares. They're only $150, I know people that nearly spend that on "race" plugs that last 5K miles.
lol
Stephen
lol
Stephen