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Old 07-30-2009, 04:30 AM   #1
Evo Killer
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Default Pros and cons for tmic or fmic

I got a little extra money and I want a intercooler upgrade. Some tell me front mount. Some tell me stick with top mount. I need u guys to help me decide. What are the differences and what should be the best for my car?

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Old 07-30-2009, 11:49 AM   #2
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Stick with the TMIC with the stock turbo, plenty good enough when upgraded to an STi TMIC...
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Old 07-30-2009, 11:57 AM   #3
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^^^^ I agree.
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Old 07-30-2009, 12:09 PM   #4
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Ya tmic is best since you have a stock turbo. If you did a fmic it would not really do anything for your setup but add alot of turbo lag and look cool.
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Old 07-30-2009, 12:45 PM   #5
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Ok now should I get a big tmic or a sti tmic?
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Old 07-30-2009, 02:16 PM   #6
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Do you have any plans to upgrade to a bigger turbo in the future?
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Old 07-30-2009, 03:25 PM   #7
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Consider where you live also. tmic with 110*F is no fun.
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Old 07-30-2009, 06:08 PM   #8
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i do not plan to upgrade turbo. should i just get sti tm? what is the down side if i get a big tmic with stock turbo?
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Old 07-30-2009, 10:18 PM   #9
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Somebody help me pleaseeee
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Old 07-30-2009, 10:21 PM   #10
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Old 07-31-2009, 02:15 AM   #11
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Stick with a tube and fin TMIC, such as an STi unit.

With a FMIC, you notice that throttle response isn't quite as sharp as stock. In other words, there is almost a bit of a delay between when you press the gas pedal, and when you notice the revs jump in response to prodding the pedal.

Gains of a FMIC are noticeable toward the top of the rev range, but if you are on a stock turbo, there isn't anything worth writing home about up there anyhow.

Other perk I found with a FMIC was that power was more consistent between performance in the morning vs. mid afternoon vs. night. I should mention however, that I did not go to lengths to isolate the TMIC from heat like many did around here. You can do this in order to keep performance consistent.

If you are positive that a turbo upgrade is not in the cards, you might as well play into the strengths of the turbo you have, and keep that relatively sharp throttle response that you enjoy with a TMIC, combined with the fast-spooling nature of the turbocharger.
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Old 07-31-2009, 04:51 AM   #12
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Ok thanks for ur help. That cleared things up
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Old 08-29-2009, 09:34 PM   #13
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I have a FP RED with a PERRIN TMIC but i just installed...
Can someone tell me if is a good idea or should I go FMIC??
I really like the throtle response and fast spool of the turbo, but like i said i haven't tune to make power on it... I just want to know if I can count on making good power or no due to heat problems???
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Old 08-30-2009, 12:09 AM   #14
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If you sat Jesus, Mohammed, and the Dalai Lama in a room and asked them TMIC vs FMIC, they wouldn't know. Buy an intercooler that suits your CFM rating and worry about other things in life. If anyone on here tells you that one is better than the other, ask them for proof and when they him and haw and spout rhetoric, you'll know that they are an assclown and know not of what they speak.
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Old 08-30-2009, 03:05 AM   #15
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Quote:
Originally Posted by pekoso1 View Post
I have a FP RED with a PERRIN TMIC but i just installed...
Can someone tell me if is a good idea or should I go FMIC??
I really like the throtle response and fast spool of the turbo, but like i said i haven't tune to make power on it... I just want to know if I can count on making good power or no due to heat problems???
Your gains will be significant if you switch to FMIC. If you really want to keep the top mount, consider water/meth injection.
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Old 08-30-2009, 11:44 AM   #16
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Get a sti tmic and get a turbo blanket like ptp and it will still cost alot less than a fmic
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Old 08-30-2009, 01:18 PM   #17
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ive been tossing up this idea on my sti.

seems i would have to remove my bumper and foam insert
ditch my jdm fogg lamps since the piping will now go there
not sure if it will interfear with my current cold air intake
i will need some sort of external bov?? not sure
then i will need to get it dyno tuned to try and sqeeze what i can out of it.
but, theres no "fail" factor in it like meth, as in meth quit working or run out of fluid.
according to most i will gain turbo lag unless i go bigger turbo but i did'nt plan on doing that yet.
meth will prob work better than a fmic but you have the factor of always having enough fluid or the right fluid and getting it tuned afterwards and if it ever fails = bad engine in like no time.

i want instant throttle responce which is a problem anyway with a turbo engine vs. naturally aspirated, i've been told a port/polish stocker will yeild best for this.

i could go big turbo, fmic and a dyno tube but have been told i will loose my streetability as far as stop light racing since i will be shifting my power upwards in the powerband for like highway racing which i dont do.

hell............who knows.
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Old 08-30-2009, 03:32 PM   #18
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Quote:
Originally Posted by wrxdrvr View Post
Stick with the TMIC with the stock turbo, plenty good enough when upgraded to an STi TMIC...
+100.

FMIC is a waste of money if you're running the stock turbo.
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Old 10-07-2009, 09:55 AM   #19
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I have to agree and disagree... it's been quiet in here, even though I have been lurking... well the stock turbo is best for reducing lag, especially if you have an up and down pipeset, a turboback exhaust, and a port and polish done on the turbo, clean and lubricate the OEM wastegate or get a Forge Motorsports one for some big dollars, and replace the clutch cable with a stainless braided one. This will create some faster and easier take off times. It doesn't have anything to do with the WRX and STi intercooler, and why it is on top of the engine. Subaru was willing to sacrifice the efficiency of a front mount intercooler for the heat soak and shorter engine life (especially in the EJ20) to protect the intercooler core from rock and branch damage during rally competition. The World Rally Championship Official Rules states that the car has to basically be "off the shelf", so the basic components like the intercooler we have are what the guys who race for Subaru/BASF Heavy Industries have in their cars, minus a lot of milling, polishing, reinforcement, aerodynamic reworking, etc...

A front mount intercooler is helpful at speeds above 45mph. If you do not need to get onto the highway from 45 to 70 in around 1 to 2 seconds, but like to keep the fins of your intercooler flawless, a TMIC with a JUN shroud and good hoses behind a good grille, ie; Grillecraft, etc. will get you through the woods without any dings in the fins. A FMIC will be trash in a year if you live in the woods. If you are city folk, FMIC will cause you enough lag that you will get terrible gas economy, but your car will be loud, it will sound like a monster, and when you do lay the throttle down, and allow the turbine to spool, it will shred tires, and leave you shopping for a gearset and clutch/flywheel (read my ClubWRX debacle about destroying trans fluid in one drive). All I did was upgrade my intake, and the previous owners chip work payed off, my CEL turned off, the car came out of limp mode, and now makes a healthy 17PSI in 3rd. WOT 20PSI in 4th. I want an FMIC, but mainly because I have learned how to make a really good grille, using a stainless mesh sold locally at a family owned hardware store. It is identical the the STi "grid" mesh, and is stainless and welded, tough as rock. It takes paint well, and I want to do an FMIC with aux lights (Hella 500A), and put the grille in flush with the bumper lip, then I will be able to finally install a lip, splitter, splitter rods and a proper CNC'd tow hook.
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Old 10-16-2009, 01:48 PM   #20
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subaru put the tmic there for a reason.
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Old 10-16-2009, 01:55 PM   #21
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TMIC + Reflective Tape
Turbo + Turbo Blanket
Downpipe + Wrap
Uppipe + Wrap
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Old 10-19-2009, 04:23 AM   #22
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i dont know why every one hates on fmics!!! i have a wrx with a vf 43 and a perrin fmic and to tell you the truth when i went from tmic to fmic i couldnt even tell the diff in throttle response even my tuner said the same thing ...its not noticable you guys make it seem like it lags forever my tuner even told me that it help a lot to keep it cool
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Old 10-29-2009, 01:03 PM   #23
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I have a 06 sti. Had extensive talks with Jeff Perrin about top mount vs Frount mount and decided on the stealth front mount. After a tune I cannot feel any perceptible lag. I added meth to the system and it pulls like mad. The front mount had a large improvement in power. STI go with the front. WRX go with the top.

-B
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Old 10-29-2009, 02:39 PM   #24
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Why not fmic on wrx?
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Old 11-02-2009, 09:38 PM   #25
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^+1 what is the MAJOR diff on an sti that would make you go FMIC over a wrx
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