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Aluminum Radiator with electric fan shroud


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Hello,

 

Yesterday my radiator cracked and spilled coolant all over a mountain road.

 

I'm now looking to replace with a 3 row aluminum unit.

 

 

The only question I have is about this particular unit on ebay:

http://www.ebay.com/itm/70-75-NISSAN-DATSUN-240Z-260Z-Z-3-ROWS-ALUMINUM-RACING-RADIATOR-RED-FAN-S-HROUD-/150951825762?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item23256e1162

 

 

post-36011-0-63611900-1361228099_thumb.jpg

 

It looks like the fan shroud is blocking the radiator except where the fans are. Is this ok?

 

 

I could also get a radiator without this fan/shroud combo and just get some universal electric fans that zip tie to the radiator. Like this:

post-36011-0-67709200-1361228190_thumb.jpg

 

 

Is that fan shroud helping by accelerating air through a smaller opening or just blocking the flow?

 

If anyone has any experience with this particular ebay radiator that would be of great help too.

 

Thanks

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The fans that I linked to on ebay don't.

 

They need to have a thermostat in order to switch on at the right time, correct?

 

The original clutch fan has a thermostat, can that be hooked up to the newer electric fan?

 

Obviously I'm new to a lot of this stuff, so thanks for all the help everyone.

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I have the Hayden Fan Controller mentioned above. It's ok but they occasionally go bad. I put around 30,000 on my Z a year. I'm on my third controller in 3.5 years. Put an override switch in the cabin just in case.

Very good point, the override switch is a back up and in my Z I use it when my A/C is on post-36683-0-15855900-1361289338_thumb.jpg. mine is placed on the fuse box cover.  :icon12:

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I have both of my fans wired to a single switch, both with relays. I turn them on around town, and I turn them off at freeway speeds.

 

For what it's worth I am using an sr20 rad with fan shroud, total cost was abotu $350. Made some custom brackets for the top and bottom with rubber insulators. Its in a 280zx but should have no problem fitting into an s30.

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I have my fan turns on low at 15'F, hi at 20'F and off at 5'F above the thermostat temp. . I'm running 180'F T-stat . Don't like the idea that you have to activate your fans with a switch , it's a good idea if you are using it as a back up or by pass . I've seen a few cars in the our shop where the customers rigged up the fans and forgot to turn them on . Don't see a reason to have your fans come below T-stat temp. . Fan motors would last long with low temp. setup . I even use A/C press. activate switch for my fans , in my 91 ZX ( converted to electric ) , so they don't even come on at hiway speed .

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I have my fan turns on low at 15'F, hi at 20'F and off at 5'F above the thermostat temp. . I'm running 180'F T-stat . Don't like the idea that you have to activate your fans with a switch , it's a good idea if you are using it as a back up or by pass . I've seen a few cars in the our shop where the customers rigged up the fans and forgot to turn them on . Don't see a reason to have your fans come below T-stat temp. . Fan motors would last long with low temp. setup . I even use A/C press. activate switch for my fans , in my 91 ZX ( converted to electric ) , so they don't even come on at hiway speed .

Yeah I'll definitely be putting in a thermostat.

Having a manual override in the cabin is what I'll be adding. Not sure when I'll use it but I got these cool led switches and the t-stat has an override so away we go.

 

That's a clever idea with the pressure switch.

Edited by Mace.un
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  • 2 weeks later...

I just ordered the MSA kit for $250 (back ordered).

Comes with relays and such.

Decent price, unknown quality.

Got my "kit" from MSA and the quality is now known... marginal.

Its not really a kit, but an assembly of stuff which shortens some of the R&D time which is valuable for me.

 

Problem is, the "shroud" they shipped is a POS.  Just a flat piece of metal which looks nothing like what is advertised on their website.

I've sent in a Return Request to see what happens, or what their feedback on this is.

 

Still probably better than what I had which was a stock fan with non-functional clutch and no shroud.

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  • 2 weeks later...

Well the one I bought from Ebay wasn't much better.

 

Though I got the 3 row radiator, shroud and 2 fans for $253.

 

But upon assembling it all a problem arose:

post-36011-0-34796500-1363299420_thumb.jpg

 

Because they made the outlet pipe have a 90 degree bend, it butted up tightly against the very thin shroud and was centimeters from the fan. This made it impossible to put a hose on it.

 

So it went to the machine shop (I don't weld) and they made a new outlet pipe that actually worked.

 

Good news about the Ebay store I bought from is that I showed them this and the invoice for fixing it and they refunded me a fair amount to cover the cost. DNAMotoring was the store name.

 

So after was all said and done it was still a very economical way to get a 3 row + shroud + twin electric fans.

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