[05'WRB]

With the continue battle against heat soak, I just finished up my home made heat shield to the cause. This was on my stock tm which I'd recently went back to.
I used .040" sheet of aluminum and some heat deflection/heat barrier tape.
Because of limited room, all the gaps between the shield were between .5" - 1". The back side and all four corners were open to creat some air circulation/escape coming through the ic from the hood coop.
With the limited tools I have, this is the best I could do but there are rooms for improvement.
IMO, this should work well. I will test it out in the next few days.

[halfelite]

Originally Posted by 05'WRB

With the continue battle against heat soak, I just finished up my home made heat shield to the cause. This was on my stock tm which I'd recently went back to.
I used .040" sheet of aluminum and some heat deflection/heat barrier tape.
Because of limited room, all the gaps between the shield were between .5" - 1". The back side and all four corners were open to creat some air circulation/escape coming through the ic from the hood coop.
With the limited tools I have, this is the best I could do but there are rooms for improvement.
IMO, this should work well. I will test it out in the next few days.

You should check out this guess project.
wrxdrvr/ICmod - Photobucket - Video and Image Hosting

With temp probes installed and everyting insulated.

[torquemada]

Originally Posted by 05'WRB

With the continue battle against heat soak, I just finished up my home made heat shield to the cause. This was on my stock tm which I'd recently went back to.
I used .040" sheet of aluminum and some heat deflection/heat barrier tape.
Because of limited room, all the gaps between the shield were between .5" - 1". The back side and all four corners were open to creat some air circulation/escape coming through the ic from the hood coop.
With the limited tools I have, this is the best I could do but there are rooms for improvement.
IMO, this should work well. I will test it out in the next few days.

interesting, but I think you block too much, the air can´t disappear.
Interested in your test results, keep em coming

[05'WRB]

Originally Posted by torquemada

interesting, but I think you block too much, the air can´t disappear.
Interested in your test results, keep em coming

Well well. Having today off from work, I went for a 3 hr drive in my new and improved tm setup. The trip was mostly city driving and some out side of the city; 30-45mph in 75 degree temp.
After I got to my destination, I parked the car with the hood close for about 15min. Just before I got back on the road again, I opened the hood to do my touch test on the ic. The side I am interested was to side were the turbo is. With just enough room to squeeze my finger between the hs and the side of the ic. It was just as I had predicted, it was just a little warmer than outside temp but not anywhere - hot to touch like it was without the hs. However the hs was very hot where I can't keep my finger on it for more than a second; just like how it was on the side of the ic before. As for the driver side of the ic, it was cool to touch and so as the engine side (intake runner/TB). IMO, the hs mod is even better than the fan mod just because I don't need to run the 2 fans trying to keep it cool.
I have couple other minor mods including a small hs over the opening between the stock hs and the turbo. What I'd noticed is that area is where most of the heat coming from after you parked. And one more fan on the turbo side and I will put a longer spacer to creat a bigger gap between hs/ic. This is done so when the fans are on, some of the cool/outside air will travel down gap between the hs/ic to the bottom of the hs. See the blue arrows with my 3rd fan setup.


From the previous pics, it's difficult to see that there is a space of 1/2" to 1" between to hs and bottom of the ic. And there is that heat barrier mat on the back side. There are plenty of room for circulation because the back side is open and the front 2 corners as well.
I am not trying to sell this to anyone but for the non believers, I wish you can see the difference with a stock setup and mine. Put mine and stocker on a dyno where the stock setup will heat soak shortly after a few pulls were I am confident that mine's will not - 3 fans/hs combo.
One step closer for us tm guys having the same cooling efficiency as the fm guys. IMO, subaru should have made a hs for the tmic.

[disturbed1]

i am doing the samething except im using a larger thin style radiator fan. pulls 1250cfm. you can them on ebay for about 60 bucks.

[05'WRB]

I made a small heat shield that goes over the small opening between the stock shield/turbo. I found there are a lot of heat escaping from that area. The little shield extend a few inches under the ic shield. All I want form this little shield is divert some of the heat away from the ic.



I'd also made a seal/neoprene on the back of the scoop that extend all the way to the top of the ic. With the thicker/taller Turbo XS it wasn't an huge issue but with the smaller stocker, there is quite a big gap - around 2". This will definately helps directing air towards the ic. Just waiting for one more fans to arrive so I can put it on the turbo side of the scoop/ic. I am almost done with this.

[viaburn26]

Originally Posted by 05'WRB

are you serious ? how exactly is the air supposed to escape ? you do know your slowing down the air if not just making it build up in the fins since it doesn't have anyplace to go ..

Originally Posted by snorky

Some one once told me, "They don't put parts on a car if they don't have to.

thats very true ..... love my emergency parking light switch

[05'WRB]

Originally Posted by viaburn26

are you serious ? how exactly is the air supposed to escape ? you do know your slowing down the air if not just making it build up in the fins since it doesn't have anyplace to go ..

thats very true ..... love my emergency parking light switch

Yes it does have 1" gap between the shield and ic fins, plus the back of the ic is opened and the 2 front corners are opened. The amount of air that goes through the scoop isn't enough to cause a restriction/back pressure from the heat shield. Air doesn't take much to escape, any small opening will do ie. a loose hose clamp and you are loosing major boost in your piping - doesn't need much sapce/room? But if it restrict flow maybe it'll recirculate throught the ic, now that's even better.

They don't put parts on a car if they don't have to?
I am sure it isn't because there aren't better ideas or parts. Cost, manufacturing process, etc.. Certainly isn't because there aren't better options. I am sure other AWD cars are better engineer than our STis? Porche, Audi, etc... That's one of the reason it cost more than our cars.
Sure, stock from factory stuff works. Why do we need to mod our cars with aftermarkets? Why do Prodrive need a cheese grater wing, carbon fiber panels, better brakes, intercooler etc... if stock was so great?
I am guessing because they can improve on it for better performance. Why do they make aftemarket parts, just replaced with stock if that's the best choice??
Some like to mod and some like it stock. No right or wrong. Just personal preference.
Got pics of your modded emergency light switch???

[Cr8zyJAP07]

good idea! but does it actually help? wouldnt the fan block the air thats coming in from the hood scoop when driving?

[viaburn26]

driving around , stopping , popping the hood and then feeling the intercooler isn't the way it should be measured . hell i can can rest my hand on top of the intercooler above the turbo when i stop and not get burned . why not go to radio shack and buy some temp meters that have the nice long metal probe and then do some test .

just waitin for the person who wrapped there tmic to repost with the problems it created .

[05'WRB]

Originally Posted by Cr8zyJAP07

good idea! but does it actually help? wouldnt the fan block the air thats coming in from the hood scoop when driving?

The only major thing that's in the way of the air flow is the two 1.25" round fan motors/coils. Since it's round, any restriction is minimal vs if it were square/flat - IMO.
Does it help, yes it does under certain conditions such as, high boost (turbo glowing red), any combination of low speed stop and go driving, idling - say you are in the staging area to do your 1/4mile run. But once the car moves at a normal pace/speed, there isn't any gain to be had with the fans. Once the ic is working at it's max efficiency, dumping more air isn't going to cool your charged/intake air any more than ambient temp. Just my observation/guess?
Just want to add that the stock opening around 6" from front to back where as the CF scoop (without the stock splitter/deflector - what ever is called) has an opening of around 9" ( without all that stock stuff ). Plus, the scoop was rised/sat 3/4" higher than stock height.
It will get heatsoak if it was parked or any short period of time. Are there better ideas, of course but I don't have the $/tools/time/or care to go any further.

For those who gives a xxxx about these 2 mods (heat shield/fans), it isn't about eliminating heatsoak in all conditions but rather once it got heatsoak, it may help in cooling the ic quicker with the fans, and it will not heat soak as quickly as the stock setup ( with fans/hs combo). The only way to eliminate heat soak a tm is to isolate the ic from the engine bay. A seperate almost air tight compartment for the ic only. Just my opinion/observation.

[05'WRB]

Originally Posted by viaburn26

driving around , stopping , popping the hood and then feeling the intercooler isn't the way it should be measured . hell i can can rest my hand on top of the intercooler above the turbo when i stop and not get burned . why not go to radio shack and buy some temp meters that have the nice long metal probe and then do some test .

just waitin for the person who wrapped there tmic to repost with the problems it created .

Nothing is scientific about my mods it's something I just fab up in my garage with some simple hand tools. Doing the temp prob and getting the reading is an good idea but I am not going through all the trouble to do that. All the result are just IMHO/educated guessed, nothing been documented/tested with intruments etc... I will leave that to those who is interested in doing this as a business and they can invest their $ for R/D, testing.
Just want to share some ideas; some works, some don't, some thinks is a good idea, some thinks is stupid. And that's fine by me.
Anyone doing any type of mod is taking a risk.
If someone ran into problem, they can always converted it back to stock. Just reverse your steps, it's that simple.
BTW, a fmic is always the best choice for performance. My goal was just to close the performance gap between fm vs tm. But a tm will never replaced a fm because where the fm is located - outside of the engine bay.

[05'WRB]

FYI, I'd just got the newer style fan and here are couple pics of it in case if anyone wants to do this.
The new fan is a lot more compact though the spec. is the same as the previous style but the overall height has reduced by half. The older style was around 4" and the current ones only 2". It will fit in the stock scoop with lots of room to spare plus it won't get into the way of the air flow if any. You can also lower the mounting bracket closer to the tm as well.

[torquemada]

I give you don´t get discouraged

[all4bspinnin]

i think the key here is to just build a wall between the intercooler and the turbo and coat it with heat foil....

keep up the good work