What CFM fan? Half bridge 13b
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What CFM fan? Half bridge 13b
I'm looking into getting an electric fan for my mazda but all I see is their "cfm" capacities..what cfm is sufficient for a semi daily driver half bridge 13b, I'm in a lot of stop and go traffic and I have a 3 row aluminum radiator...gracias.
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I had a 1300 cfm fan on my 12A street port and while autocrossing, it would get too hot between runs and basically run 100% of the time if the temp was over about 70F. The fan burned up so I get 2 smaller fans rated at 1000cfm each. Now it cools just fine and only stays on for a couple of minutes each run. Autocross is kinda hard on cooling systems vs. street driving but your bridgeport will take a fair amount of cooling capacity so I'd say at least 2K cfm or more is what you should shoot for.
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#9
Old [Sch|F]ool
I had no problems with a 1600cfm fan.... on the street.
Now I have Chrysler 300M fans. They will not fit with the battery in the stock location. The fan assembly overhangs the radiator two or three inches on each side. With both fans running on high speed, it draws close to 60 amps. But it WILL cool the engine in real time. I can start a rallycross run or a dyno pull and finish with cooler engine temps than when I started.
Now I have Chrysler 300M fans. They will not fit with the battery in the stock location. The fan assembly overhangs the radiator two or three inches on each side. With both fans running on high speed, it draws close to 60 amps. But it WILL cool the engine in real time. I can start a rallycross run or a dyno pull and finish with cooler engine temps than when I started.
#10
love the braaaap
I vote for the Taurus fan conversion. Low speed is enough to keep my stock 12A cool on the hottest of days. High speed should be good to keep a modified engine cool if your rad is in good shape. Also a lesser known fan that works well is the early to mid 90's Ford Escort fan. This is what I used on my 82 with 6 port 13B swap and it had no problem keeping that engine cool. The Escort fan fits a little better than the taurus fan but its only a single speed with flow similar to the taurus fan on low. Both use the same diameter fan i believe so if you dont like how the Taurus fan fits you probably could swap the fan motor of a Taurus fan into the Escort shroud for an excellent fit and finish and great performance.
Either way I have my doubts you will find a higher flowing single fan setup than the Taurus dual speed unit. If you want more cooling power than that you will likely have to go to a dual fan setup which as Peejay stated has very high current draw.
Either way I have my doubts you will find a higher flowing single fan setup than the Taurus dual speed unit. If you want more cooling power than that you will likely have to go to a dual fan setup which as Peejay stated has very high current draw.
#13
Old [Sch|F]ool
The reason for my switch to 300M fans was because my water pump pulley nosed into the blades of my Flexolite single 16" fan, breaking most of them.
BTW - The letter has nothing to do with the engine series/type - the 13B is simple the second 1.3l engine Mazda made, even though it's the same architecture as a 12A. (The 13A was completely unrelated to the 10A/12A/13B)
#14
RX for fun
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Yup, i just like to abbreviate so i called it "B" motor. I run a single fiero v6 fan which gave a lil over an inch clearance between the main pulley and fan motor. The good about fiero fan is that it covers both radiator and OC, and the entire core of tall 83-85 radiator. 10 years later fiero fan is still kicking *** during L.A.'s rediculous stop and go rush hour freeway traffic. I tried a taurus fan also but it wont clear.
#16
Old [Sch|F]ool
I have a GSL-SE style setup with the frontmounted cooler and tall radiator. There's a piece of truck mudflap ziptied to the crossbeam over the oil cooler, which prevents air going to the bottom half of the radiator from bypassing the oil cooler. Works just fine.
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