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FMIC or TMIC with 20g and possibly going bigger later?
FMIC or TMIC with 20g and possibly going bigger later?
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FMIC or TMIC with 20g and possibly going bigger later?
FMIC or TMIC with 20g and possibly going bigger later?
FMIC or TMIC with 20g and possibly going bigger later?
FMIC or TMIC with 20g and possibly going bigger later?
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View Poll Results: TMIC or FMIC?
FMIC 7 43.75%
TMIC 9 56.25%
Voters: 16. You may not vote on this poll

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Old 04-03-17, 11:26 AM   #1
jgr208
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Post FMIC or TMIC with 20g and possibly going bigger later?

I have a 2009 STI and hopefully by the end of this year will be having a 20g and hopefully going bigger in the next years as well with building the motor up (not sure if staying stock location or rotated but 20g will be stock location).

I can't decide if then with the 20g I should just stick with the TMIC (would be buying an ETS TMIC in this case) or if I should just get the FMIC (Turbo XS FMIC in this case) with the 20g.

Any advice from people who had to decide this before?

The car is not a DD is a weekend/project car.
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Old 04-03-17, 11:59 AM   #2
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

If you plan on going bigger or rotated later on get it over with now. No reason to waste more money than you will during the course of building it. With a 20g you may be able to get by with the stocker depending on fuel type and power level

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Old 04-03-17, 12:39 PM   #3
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

I need to grab some quarter mile times on the new turbo but for daily driving I'm having no issues with my GTX3576 @ 540 WHP on e85 / 450 WHP on 93 with my Spearco TMIC :/ Maybe could get more with the FMIC and if it were a dedicated track car, sure. Since yours is, why not?
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Old 04-03-17, 01:27 PM   #4
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

FMIC for sure. My TMIC heatsoaked in Houston heat causing huge temp variances and also reducing timing etc. On the FMIC its a huge noticeable difference in how it performs for the charged temps
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Old 04-03-17, 03:21 PM   #5
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

Quote:
Originally Posted by jgr208 View Post
I have a 2009 STI and hopefully by the end of this year will be having a 20g and hopefully going bigger in the next years as well with building the motor up (not sure if staying stock location or rotated but 20g will be stock location).

I can't decide if then with the 20g I should just stick with the TMIC (would be buying an ETS TMIC in this case) or if I should just get the FMIC (Turbo XS FMIC in this case) with the 20g.

Any advice from people who had to decide this before?

The car is not a DD is a weekend/project car.
Stay TMIC. The reduced pressure drop pays for itself by allowing that small turbo to stay in a better compressor efficiency range and make more top end power. All while being slightly more responsive.

Don't worry about "heat soak"... 99% of people that talk about it are still reading intake temps from their MAF in the airbox and have no idea what their actual IATs are and how quickly temps drop when moving away from rest in stop/Go traffic
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Old 04-03-17, 07:05 PM   #6
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

20g your choice.
Bigger, still your choice! - Surely though, most will tell you FMIC

I didn't vote for 2 reasons
* I made this choice and decided to stay smaller and TMIC on this car.
* If I ever have the oportunity to do a bigger EJ build it will be ATW for the best of both.
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Old 04-03-17, 07:43 PM   #7
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

FMIC since you are going for more power down the line
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Old 04-03-17, 08:17 PM   #8
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

From what I have read:

Stock location: TMIC
Rotated: FMIC
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Old 04-04-17, 03:35 AM   #9
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

And that's a decent rule of thumb.

But people break it and report good results. I will say this, I would not go rotated and TMIC cause I wouldn't put the turbo that close to the inter-cooler unless I had a means to isolate them while keeping them close.
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Old 04-04-17, 03:51 AM   #10
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Default Re: FMIC or TMIC with 20g and possibly going bigger later?

Weekend track/project? Like what kind of track car? Autox, full sized road course, drag strip? What exact purpose do you have for this car? In my own opinion, theres two sides to the story.
Number 1 is dedicated race type. Number 2 jack of all trades. Dont get caught up on the rotated has to be fmic or stock location has to be tmic or that stuff. Start at the very beginning of purpose built.
If you are looking to do all sorts of racing, a rotated setup with vbands and an fmic is the jack of all trades. Swap out turbos with ease, use the hood scoop for fluid coolers, more room above the pitch mount for an AOS and working space in general.
A 20g is good stock location turbo but depending on if bigger power is down the road for you, i would consider running it fmic. The boost threshold and response isnt all too different. I would say about 300 to 400 rpm.
I find top mounts are good for anything that doesnt require you to sit long periods of time like at a drag strip, because Heatsoaking is definitely a thing. It may reach the point where it will reach a peak temp and sit there and you can tune on that to be safe but i prefer the most efficient and reliable which the fmic does for me and my stock location blouch 1.5xtr. Just my 2 cents.
Dont forget that fueling plays a big role in cyl temps and performance as well as how much timing and boost you can get in down low. E85 is life.

:edit- if you consider doing fmic with the 20g i would opt out for an ets fmic just because the higher quality of material, fitment and welding ability of the staff is much more apparent compared most other brands.

Last edited by SlowInFastOut; 04-04-17 at 03:55 AM. Reason: Left out a line of info
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