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-   -   Do the CXRacing fans suck? (https://www.miataturbo.net/engine-performance-56/do-cxracing-fans-suck-46495/)

TrickerZ 04-20-2010 03:25 PM

Do the CXRacing fans suck?
 
Or rather, NOT suck? Ever since I put in my CXRacing radiator/fans/shroud, my car has been overheating. I put a bottle of water wetter in it and I haven't had an issue yet, but it also hasn't been as warm as it was before I put it in.

Are the fans complete crap? I wasn't having any problems with the stock radiator except on hot days (90+) while having the A/C on. The radiator has to be an improvement, so all I can think of is the fans. I thought it might have been from the gap between the radiator and frame, but it overheats in stop and go traffic where ducting would be ineffective anyway.

I have V mount intercooler and A/C, racing beat sway and a crappy bra that doesn't help either. What slim fans does everyone use? I haven't tested the stock fans, but I'm pretty sure my IC piping would be pushed into my belts (it barely fit on stock) if I put them on and I hear they hit the sway bar.

Anyone else have this problem or have ideas of other things to check?

240_to_miata 04-20-2010 04:20 PM

my fans cool me just fine. I have the cxracing combo

hustler 04-20-2010 04:25 PM

Does it overheat when you're driving or when you're stuck in traffic?

hustler 04-20-2010 04:26 PM


Originally Posted by 240_to_miata (Post 559353)
my fans cool me just fine. I have the cxracing combo

how did you wire them in? I have fans from silicone intakes and haven't hooked them up yet.

shuiend 04-20-2010 04:37 PM

TrickerZ for reference I have a Godspeed radiator and a single cheap ebay fan with no shrouding and I have spent over an hour sitting in blocked up traffic in Charleston in July with no overheating.

I am going to shoot you a pm this summer when I am down in Charleston. I want to check out your setup.

na8psi 04-20-2010 05:38 PM

make sure your getting power to the fans all together. re-bleed the coolant system for air pockets as well to be sure?

jayc72 04-20-2010 05:41 PM

Burp your coolant system.

Bryce 04-20-2010 06:20 PM

Does your car make coffee maker sounds after you turn it off?

TrickerZ 04-20-2010 07:06 PM

Bryce, like a cement mixer? Yeah, is that the water pump? Am I just retarded and have no idea how to install a radiator, cuz all I did was drain, detach the old and pull it out, put the new one in and fill it, run the car, fill it some more.

Note: It did make that sound prior to the new radiator. Figured the OP was going since it has a wobbly crank pulley and 200k miles, about 80-90k boosted.

Bryce 04-20-2010 07:17 PM

If it gurgles after shutoff, could be your radiator cap no longer holding a seal. I had this happen to me. A new radiator cap fixed it. Like the others have said though, removing air bubbles from the system can help too.

TrickerZ 04-20-2010 07:23 PM

Nah, it sounds like a cement mixer all the time, even when cold. Sounds more like metal than bubbles.

hustler - it overheats at speed or in traffic. Usually cools down at idle if I remember. If I turn the A/C on, it's a definite overheat. It was cool and raining and I turned the A/C on to defog the windows and it overheated.

Fans are powered and spinning (though I should probably check which direction...that would be funny). They sound like a jet engine.

shuiend 04-20-2010 07:26 PM

When you bleed the coolant system do you have the front lifted as high as you can?

TrickerZ 04-20-2010 07:31 PM

It was parked in my driveway at whatever incline that is and I may have had a jack under it as well. This was several months ago, so my memory is a little hazy.

shuiend 04-20-2010 07:44 PM

Well you live in Charleston, so I would be willing to bet your driveway is pretty flat. I would try burping the system again with the front of the car jacked up. Also make sure the fans are actually pulling air through.

TrickerZ 04-20-2010 09:28 PM

Is there anything I need to know about burping it? Just bring up to temp and top off? Do I need to remove the radiator cap beforehand?

shuiend 04-20-2010 10:30 PM


Originally Posted by TrickerZ (Post 559567)
Is there anything I need to know about burping it? Just bring up to temp and top off? Do I need to remove the radiator cap beforehand?

I would have the radiator cap off the whole time while burping the system.

marinerblue92 04-22-2010 10:01 AM

OP, any updates?

TrickerZ 04-22-2010 07:26 PM

I just got back from checking it out. It looks like the fans were reversed (hard to tell from that angle). I swapped the wires and will see if it works. Who would have thought black doesn't go to black...I didn't even think to check them when I installed them since it seemed so obvious. I'll probably still burp my system anyway since I didn't do that and it sounds like a good idea nonetheless. I have a long trip tomorrow up to VA, so if I turn on my A/C and it doesn't overheat, I'll consider it good.

shuiend 04-22-2010 08:41 PM


Originally Posted by TrickerZ (Post 561017)
I just got back from checking it out. It looks like the fans were reversed (hard to tell from that angle). I swapped the wires and will see if it works. Who would have thought black doesn't go to black...I didn't even think to check them when I installed them since it seemed so obvious. I'll probably still burp my system anyway since I didn't do that and it sounds like a good idea nonetheless. I have a long trip tomorrow up to VA, so if I turn on my A/C and it doesn't overheat, I'll consider it good.

Where in VA are you going?

TrickerZ 04-22-2010 08:58 PM

Alexandria, Falls Church and Quantico. Visiting a friend, then going to another friend's wedding.


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