dudeondacouch Posted December 10, 2008 Share Posted December 10, 2008 his fan is on the underside of the TMIC. Link to comment Share on other sites More sharing options...
05GT Guru Posted December 10, 2008 Share Posted December 10, 2008 I think you may be overestimating the amount of air that flows over the IC. I think you are overestimating computer fans Link to comment Share on other sites More sharing options...
Golf4283 Posted December 10, 2008 Share Posted December 10, 2008 Ahh I didn't see that. Well disregard what I said haha. his fan is on the underside of the TMIC. Link to comment Share on other sites More sharing options...
JoeFromPA Posted December 10, 2008 Share Posted December 10, 2008 I like the concept of this....it essentially follows the logic of a radiator fan and a similar style of execution. If it also helps keep overall engine bay temps, on average, cooler, then all the better.... Moving more air around the engine when at ultra-low speeds can't hurt much Joe Link to comment Share on other sites More sharing options...
urs1ne Posted December 10, 2008 Share Posted December 10, 2008 You can get a temp sensor so that it will automatically kick on if the IC hits a certain temp. I think this is a great idea, I may have to invest myself. ^ n00bs below this line Link to comment Share on other sites More sharing options...
iyalla Posted December 10, 2008 Share Posted December 10, 2008 Just curious why didn't you buy a smaller fan? Like a Spal 5.2" or 6.5" slim or something? http://www.jaycorptech.com/showcategory.aspx?categoryid=2 Link to comment Share on other sites More sharing options...
frank_ster Posted December 10, 2008 Author Share Posted December 10, 2008 I like the concept of this....it essentially follows the logic of a radiator fan and a similar style of execution. If it also helps keep overall engine bay temps, on average, cooler, then all the better.... Moving more air around the engine when at ultra-low speeds can't hurt much Joe thats the idea .. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
frank_ster Posted December 10, 2008 Author Share Posted December 10, 2008 Just curious why didn't you buy a smaller fan? Like a Spal 5.2" or 6.5" slim or something? http://www.jaycorptech.com/showcategory.aspx?categoryid=2 well the one i chose was the thinnest one i could find at a resonable price. a smaller fan would not cover the entire surface .. and maybe cause some air to go back up the inter cooler then back down and then back up. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
Jerboa113 Posted December 10, 2008 Share Posted December 10, 2008 I think you are overestimating computer fans look up the antec tornado. 1cfm/mm. high cfm pc fans do exist. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
Yamarocket630 Posted December 11, 2008 Share Posted December 11, 2008 Is that fan attached to anything? Link to comment Share on other sites More sharing options...
leggtnut Posted December 11, 2008 Share Posted December 11, 2008 Even if it was, they are 99% of the time removable Ben (2014 Outback SAP w/ eyesite, 2014 Tribeca Limited, 2006 LGT limited sedan) Subaru Ambassador PNW Link to comment Share on other sites More sharing options...
Bbc84 Posted December 11, 2008 Share Posted December 11, 2008 i seen a bank of computer fans on STis TMIC iirc Link to comment Share on other sites More sharing options...
GTSPECB STI Posted December 11, 2008 Share Posted December 11, 2008 Good concept I reckon. Japanparts sell an intercooler fan made by Marche but they want an arm and a leg for it. Also found this one as well. http://www.atsracing.net/IntercoolerFanandShroud.htm Link to comment Share on other sites More sharing options...
Jerboa113 Posted December 11, 2008 Share Posted December 11, 2008 ya know that shroud probably wouldn't be hard to make if you had the resources. Thats probably a good idea to maximize airflow cross the IC too. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
Tsquared80 Posted December 11, 2008 Share Posted December 11, 2008 I kinda like the idea, or at least the concept, but you are sacrificing cooling capabilities when you get to higher speeds. Even when you turn the fan off, the air naturally moving across the intercooler when you speed up is being used to rotate the fan. This in turn slows the air down because you are removing energy from the air, but I'd have to run the numbers to see by how much. I would be curious to see what the life of the fan is going to be, too, since you are essentially running it nonstop while you are driving, whether it is turned on by you at a stop, or moving because of the forced air (probably comparable to a radiator fan). Is the heat soak at idle worse than sacrificing performance at higher speeds? I can't answer that question. I know in my STi I had a water-cooled TMIC, but that's probably more expensive and time-consuming to set up. Edit: With regards to the fan "free-running". Depending on how good the bearings are, the momentum energy from the forced air used to spin the fan when you are driving will come back when you slow down. So, if you're traveling at 70 mph, then get off the highway and stop at a light, the fan will still be spinning, just decelerating. Link to comment Share on other sites More sharing options...
Jerboa113 Posted December 11, 2008 Share Posted December 11, 2008 yea you know that had me thinking the other day about other methods of cooling the IC besides air. I have the same problem as the op really, during the summer here in Ga I get heatsoak and my car is a DOG. it makes the winter months more rewarding tho.. so its not the end of the world. You know if you were really hoping for cool air and didnt mind not having a/c you could use the a/c compressor system to make some kind of cooled IC system.. but I think that'd be overkill and probably wouldn't help enough to warrant the compressor load, even on a racer.. that was just my mind wandering yesterday lol. "The penalty good men pay for indifference to public affairs is to be ruled by evil men." - Plato Link to comment Share on other sites More sharing options...
Reuben Posted December 11, 2008 Share Posted December 11, 2008 So.... you got a fan for when the IC is not needed and you don't have any hot air to cool, that will obscure air flow when you're really moving, and have lots of hot air to cool http://theyankeesscottishprincess.mlblogs.com/Thumbs%20Up.jpg Link to comment Share on other sites More sharing options...
frank_ster Posted December 11, 2008 Author Share Posted December 11, 2008 its attached to the intercooler with some lil aluminum brakets i made ... and those who are worrieing about the high speed driving the fan being a restriction .. well maybe it is .. but there is pleanty of air moving past it for it to do its job .. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
MGV101 Posted December 11, 2008 Share Posted December 11, 2008 This idea is actually better than the japanese aftermarket part as it is positioned behind the intercooler rather than in front of it. I always think that with the fan positioned in front of the intercooler, the central hub of the fan will be blocking a significant area right in the middle of the intercooler (about 1/9th of its area). When travelling at high speeds, the blades may also not be spinning fast enough and obstruct additional air too. Placing the fan behind the intercooler will allow the intercooler to be fully exposed to the on comming air flow. Although the fan hub behind the intercooler will still create some restriction and back pressure reducing airflow slightly but it will be much better than placing the fan at the front. I guess that tiny additional restriction might be worth it if it eliminates the heat soak. To make the system better, the fan could be moved further back so there is more space for the air exiting the intercooler to go around the central fan hub and a shroud will need be built between the fan and the intercooler to channel the airflow. I am not sure if there will be enough space behind the intercooler for such a system though. Edit: hey cool!! this might work!!! : Good concept I reckon. Japanparts sell an intercooler fan made by Marche but they want an arm and a leg for it. Also found this one as well. http://www.atsracing.net/IntercoolerFanandShroud.htm Link to comment Share on other sites More sharing options...
ean611 Posted December 11, 2008 Share Posted December 11, 2008 any pics of under your hood with this installed? Did this improve city fuel efficiency? Any chance of putting together a walk through? Link to comment Share on other sites More sharing options...
HansGT Posted December 11, 2008 Share Posted December 11, 2008 all this does is eliminate the chiminy effect all the hot under hood air passing through the inter cooler on its way out.. it keeps pulling cold air down. What about when its 95 degrees outside? Or it's pulling in hot air off the hood? Hot air rises...thus out of the scoop. Your just pushing more down. If the fan is strong enough I guess it could help Link to comment Share on other sites More sharing options...
lepich Posted December 11, 2008 Share Posted December 11, 2008 Wow! I like the idea and implementation! it will be even more useful to have some thermo relay attached to IC, switching on and off this fan. Wondering, will it work with IC sprayer? I doubt it will survive for a long.. To bad I have sprayer installed recently. There are no bad people, just differeent. Link to comment Share on other sites More sharing options...
Underdog Posted December 11, 2008 Share Posted December 11, 2008 If it is an automotive fan, I would hope it's water resistant! The Crimson Dynamo Link to comment Share on other sites More sharing options...
frank_ster Posted December 11, 2008 Author Share Posted December 11, 2008 walk through .. buy fan .. trim fan so it fits in between tanks.. use supplyed mounting hardware .. bend the little vent tube thingy next to the tranny mount.. connect teh power wires to something put inter cooler back on and drive it ! Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
urs1ne Posted December 11, 2008 Share Posted December 11, 2008 I would imagine you could get a big fan like that and set it to a slow speed and let it run whenever the car is on. That way you wouldnt need to worry about turning it on or off and it wouldnt be a hinderance at high speeds. Its the same idea as using a giant slow spinning fan in a computer case instead of multiple smaller and faster fans. ^ n00bs below this line Link to comment Share on other sites More sharing options...
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