wcbjr Posted January 11, 2006 Share Posted January 11, 2006 I have cut out the separators to leave the entire compartment empty. The compartment is only 2.5" tall. I plan on running something like a JL e4300 and another JL e1400D so heat might be an issue in such a tight space. In order to combat the heat, I am going to install some fans. Stinger has some 12V fans that are small (http://www.cardomain.com/item/STISF1), and also has a controller (http://www.cardomain.com/item/STISFC). I just don't like the price at $13 a piece for the fans. I'd like to have 4 of them, one at each corner at the top sucking air in, and one at each corner at the bottom blowing air out. So my question is, are there any cheap and small 12V fans anywhere? I forgot what I was supposed to remember. Link to comment Share on other sites More sharing options...
mbacis Posted January 11, 2006 Share Posted January 11, 2006 I did something similar with the intent of installing fans, but I'm only using two channels on a 4-channel amp right now so it doesn't even get warm - no need for fans. I used a big piece of plywood and cut about a quarter out of the foam tray, then I mounted the remainder of the tray to the wood with the amp in the place I cut out. I still have a few useful compartments this way and the amp is completely hidden. Sorry, can't help with the fans. You could get some el cheapos at RadioShack though. Link to comment Share on other sites More sharing options...
D-2.5-GT Posted January 11, 2006 Share Posted January 11, 2006 you'll be able to find some cheap fans online...LOTS of sites for stuff like that. Link to comment Share on other sites More sharing options...
elarbee Posted January 11, 2006 Share Posted January 11, 2006 most cpu and computer case fans operate between 8-13v and can be found for around $5 Link to comment Share on other sites More sharing options...
PGT Posted January 11, 2006 Share Posted January 11, 2006 http://www.partsexpress.com I have two 12v squirrel fans. I planned to use them in my install, but so far, no need. I put a JL 500/1 and MBQuart RAA4200 under the floor. I'd be more worried about supporting the weight with the foam insert. I was planning to do the same thing you are planning, but decided that it wasn't supportive enough. You might want to take the insert and trace the bottom onto some 1/4" plywood and cut a piece out for extra support. The issue then becomes hanging the weight from the foam lip that holds the insert in place. I considered using some fiberglass resin to stiffen it up. Link to comment Share on other sites More sharing options...
GizmoII Posted January 11, 2006 Share Posted January 11, 2006 Squirrel fans would be the best route, lots more air can be push across the amp. Take a look at the specs on the fan, you want to make sure you get a bearing fan, it will last a lot longer and it shouldn't make noise when its really cold. Fans that use a sleeve bearing tend to get that way in the cold. My 2 cents from a mechanical designer at MTX audio. And that fan that stinger is selling is worth about $0.75, rip off. Radio shack or Fry's electronics is the way to go. Link to comment Share on other sites More sharing options...
PGT Posted January 11, 2006 Share Posted January 11, 2006 If someone wants a squirrel fan, PM me - I have two and am not planning to use them. http://images.cardomain.net/products/sti/STISF4.jpg As for noise, it's under the floor in the back of the car - fat chance you will ever hear it. The one's I have are dead quiet...you can barely hear the air moving, much less the fan itself. Link to comment Share on other sites More sharing options...
wcbjr Posted January 11, 2006 Author Share Posted January 11, 2006 Funny, I've never heard the term squirrel fan. Anyways, two of the plain square fans push the same amount of air as one of those squirrel fans. And they cost less and are much easier to mount. As for bearing vs sleeve, it won't matter, by the time the fans will kick on the music will be plenty loud to drown out any noise, not to mention to trunk cover that is over everything. I forgot what I was supposed to remember. Link to comment Share on other sites More sharing options...
PGT Posted January 11, 2006 Share Posted January 11, 2006 Anyways, two of the plain square fans push the same amount of air as one of those squirrel fans. not true. normal fan = 18cfm the one I posted = 54cfm - you'd need three square ones. And they cost less and are much easier to mount. true for the type I posted. This type is the same cost and mount: http://www.partsexpress.com/images/259-132m.jpg Link to comment Share on other sites More sharing options...
GizmoII Posted January 11, 2006 Share Posted January 11, 2006 Your lucky to to get 18 cfm with a regular square fan. Anyway, if you have no place to put the heat your amp will thermal. If JL engineers thier amps like ours, they are always going to be on the ragged edge of thermaling in an semi open air environment. We use fans on the inside of our amps and they still thermal if the exhaust ports are blocked or the amp is inside a tightly enclosed area. Link to comment Share on other sites More sharing options...
wcbjr Posted January 11, 2006 Author Share Posted January 11, 2006 not true. normal fan = 18cfm the one I posted = 54cfm - you'd need three square ones. That's not what Stinger's site says. SF3N: The SF3N features improved mounting tabs and a low profile, crossflow design. Measures 8.125 inches long x 1.75 inches deep x 1.75 inches high, 54 cubic feet per minute. Now retail packaged. SF1: Stinger’s smallest 12 volt DC fan for cooling amplifiers. 2.35 inches square x 1-inch deep, 28 cubic ft. per minute. I forgot what I was supposed to remember. Link to comment Share on other sites More sharing options...
PGT Posted January 11, 2006 Share Posted January 11, 2006 sorry, I posted the small pic but have the large one. 18 x 3 = 54, unless you are using Martian math or something :laugh: Link to comment Share on other sites More sharing options...
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