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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 01-30-2013, 11:43 AM   #1
keada714
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Silvia Aero Fmic

Hey Guys,

Found a huge leak on my smic yesterday so I'm planning to replace it with a fmic or hmic. I need some advice before jumping into it. The car is stock beside the t28 turbo running 9-10lbs.

1. Would a replacement smic be alright for my application. I daily it most of the time and occasionally boost for shits and giggles.

2. Would my AC line get in the way of the fmic/hmic?

3. Do I have to cut up my aero bumper in order to fit the two cores?

4. Would there be enough airflow for the hmic as well as my stock radiator if I decide to get the hmic.

Your response is greatly appreciated!
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Old 02-07-2013, 11:30 AM   #2
keada714
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Bump...

Found out that the high mount won't work since I have a condenser...
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Old 02-08-2013, 05:15 PM   #3
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get ready to upgrade the radiator too... unless your running no bumper, that FMIC is going to make your car overheat.

its blocking any and ALL air that can go into the radiator..
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Old 02-08-2013, 05:45 PM   #4
hartig
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Quote:
Originally Posted by Chaluska View Post
get ready to upgrade the radiator too... unless your running no bumper, that FMIC is going to make your car overheat.

its blocking any and ALL air that can go into the radiator..
air goes through fmic, it does not hit a wall..
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Old 02-09-2013, 05:58 PM   #5
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Originally Posted by hartig View Post
air goes through fmic, it does not hit a wall..
i should rephrase..

the intercooler limits the amount of air rushing into the radiator.. its like blowing air through a mesh window, air can go through, but the mesh block a little bit of flow.

it has happened on my last 3 cars, and my friends 2 KA-T's...

5 out of 5 have overheated after installing a FMIC.

proof enough for me.
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Old 02-10-2013, 05:45 AM   #6
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Quote:
Originally Posted by Chaluska View Post
i should rephrase..

the intercooler limits the amount of air rushing into the radiator.. its like blowing air through a mesh window, air can go through, but the mesh block a little bit of flow.

it has happened on my last 3 cars, and my friends 2 KA-T's...

5 out of 5 have overheated after installing a FMIC.

proof enough for me.
I have another theory about the reasons you and your friends overheated, but you wont like it.

So yes, an IC will restrict flow a bit,but not to the point of creating overheat conditions. That happens only if you did some other mistakes like removing the undertray, NOT stacking the intercooler on the rad, NOT ducting the rad correctly, and NOT having the adequate tune.
Even if you dont have a FMIC, you NEED a tune and that undertray anway. Ducting the rad is a plus.

Then yes, it will overheat. Otherwise it wont cause any problem.

SMICs, OEM or replacement, dont really work well TBH, they restrict flow quite a lot and dont cool the charge enough. A FMIC is usually worth at least 10WHP, as it cools much better and acts less like a restriction. It will somewhat unchoke your engine, you will be able to maintain boost higher in the revs.

Now if you are really worried about cooling, stick a larger radiator on the car at the same time. But keep the undertray and get a tune.

Also remember you may have to relocate / change your battery with a FMIC, depending on the piping.
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