Been planning this for over a year & I'm finally making progress on it.




The shroud I drew in SolidWorks so I could 'flatten' it when done to make a template for cutting out of AL sheet.



The idea is to improve the cooling by the fans and provide a solid mount without running rods of any sort through the radiator. The tabs on the edges use the stock shroud mounting slots/holes.







I'm using two different fans. One (because I had it already) is your average 16" fan & draws about 12 amps. The other is a Spal 2082 drawing 24 amps. I'm going to use the Spal controller to PWM the big 2082 fan, and run the smaller fan as the 2nd fan w/ the controller. On this controller, the 2nd fan is not PWM'd. It's either on or off, and is triggered on when the A/C is on or the main fan hits 100% power.

I still need to put a divider down the center to isolate the fans more so that when only 1 fan is running it doesn't just suck air backwards through the other. I'm hoping to get it all mounted next weekend...

--Dan

 

that looks sweet man good luck

 

Yep... You're an engineer. Looks good

 

Fans look good, but are you sure you want to run a divider?
when your parked or bearly moving with that divider and one fan on, your hindering your flow as it will only be sucking air from one half of the rad/condenser. Probably not a big deal since they way they are wired when your first fan hits 100 the other will turn on. I would say leave the divider off.

 

Great idea and great fabrication. Good job.

 

Hi .

Good job, and good choice of both controller & config. At some later point, I'd upgrade that 'light' fan to another SPAL.

It's crucial to install that divider - don't forget to use closed-cell foam on it's leading edge, as well as completely around the periphery of your shroud. Without a divider, you WILL be drawing air from the path of least resistance - across the face of the rad and through that big hole where the other fan sits, lol; far worse than a partial draw through the rad.

The other reason a divider is really necessary in this particular case is due to the mismatched fans - that SPAL will easily overpower the cheapo fan, if allowed to; it will create a low-pressure area within the volume of the (undivided) shroud, the resulting 'reverse draw' degrading the flow of the low-cfm unit significantly.

Given any thought to manual controls and indicators in-cab?


****

 

Great use of Solidworks there!! That's the CAD package I use at work and have made good use of that sheetmetal feature set many a times.


And? Making a crack about us engineers? LOL

 

Meh.. he's just jealous, and bummed because Solidworks won't run on his videogame console

Fortunately, there is Google Sketch-Up for the college dropouts


Deek

 

Nope... I'm studying to be an ME...

 

Good luck with that!! Really!

How far along are you? BS, MS, PhD?

I am a EE that does so much ME stuff. One of these days I might see what it would take to get a 2nd degree with it being in ME.

 

I figger .... BS

 

Workin on my BS.

 

Right On!

 

That's a fat sheetmetal setup.

But since the fans are pullers, it seems the shroud would block some flow to the radiator. How about peppering that thing with holes (Think punch, not drill. I live in Phoenix, it was 93 today-I cant help but think this way.

This is my next mod, and you are my idol.

 

Pullers sit behind the rad.. not in front. Holes would cause it to pull hot air from the engine bay not the front of the vehicle.

And MGD you are correct, i had a brain fart.
Hot in Texas too, so if im installing two fans, they are going to be high CFM units and running simultaniously as pullers off a thermostat switch. ITs a bit of a task keeping a V8 S10 cool here in the middle of summer and in traffic. The optimal 200-220 will get to 260-280 real quick!

As for my screw... its a huge slab of metal with a 4.6 so im not worried about performance on it lol.