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Old 11-19-2019, 09:02 PM   #1
Actionwrx17
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Default Gs tmic vs front mount power differences

I have a gs tmic, wondering what the power differences would be if I switched to a front mount ic. Currently fbo, stage 2 block and fp blue
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Old 11-20-2019, 10:25 AM   #2
idiosyncrisia
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Were you sitting in on your tune? What was your first pull like before your tuner had to dial it back to account for the intercooler heat soaking. It'd be somewhere around there because the purpose is to cool down more thanks to the surface area. That's what I was told by my tuner. For me, that would net me like 15-20 wheel horsepower on full stage 3 with GS TMIC as well.
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Old 11-20-2019, 11:39 AM   #3
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If you make the upgrade, you should go ahead and take the opportunity to add the IBR BRZ manifold kit to optimize the power for going front mount. That's how I would justify it at least

Last edited by WRXnick16; 11-20-2019 at 12:39 PM.
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Old 11-20-2019, 12:11 PM   #4
gurusan
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You should be able to determine if you really need to go FMIC by logging your IM temperature delta against pre-turbo temps.
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Old 11-20-2019, 01:23 PM   #5
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The GS TMIC will climb on the manifold side during a pull pretty well on your setup. I swapped a FP Blue ethanol car with a GS TMIC to an ETS FMIC and made some decent power and huge consistency on the manifold side. I'll see if I can find the graph.

Last edited by BrenTuning; 11-20-2019 at 03:13 PM.
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Old 11-20-2019, 02:57 PM   #6
Rexy18
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Personally i monitor iat and imt all the time on my ap, out of 6. And i have a gs tmic. I’d start by monitoring your iat chosen or ign comp to see how much timing if any you have pulled. Then go from there, consider next how much timing if any and how important it is to have 100% timing all the time.

Not that critical to me, glad i went gs tmic. Even at imts of 160 after heat soak (highest rec 167f) it lowers to 20f over iats within 30sec of driving or some boost. But off a red light it may pull up to 5 deg until 30sec into moving or iats<104f.
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Old 11-20-2019, 03:41 PM   #7
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GS TMIC has a water meth bung right before the throttle body, just hook up a small jet to lower your charge temps.

Keep the short boost pipes and keep your front crash bar all while outperforming a FMIC.
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Old 11-20-2019, 05:33 PM   #8
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Quote:
Originally Posted by gn4rwhals View Post
GS TMIC has a water meth bung right before the throttle body, just hook up a small jet to lower your charge temps.

Keep the short boost pipes and keep your front crash bar all while outperforming a FMIC.
My only concern with that setup is the water/meth could corrode the throttle body butterfly valve over time. You definitely need to make sure to clean it regularly if you put the jet before the throttle body like that.
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Old 11-20-2019, 06:19 PM   #9
gn4rwhals
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Quote:
Originally Posted by Schoat333 View Post
My only concern with that setup is the water/meth could corrode the throttle body butterfly valve over time. You definitely need to make sure to clean it regularly if you put the jet before the throttle body like that.
True, but you get to keep your crash bar with the W/M injection. You get damaged without a cash bar on the car and good luck fighting with your insurance.

Throttle body cleaning is a nuisance of the W/M system so pick your poison I guess.

There are pros and cons to all approaches, personally I'll stick with my GS TMIC as is because it does the job for me. My car made 349 whp with it which is all I wanted out of the stock motor/trans/turbo.
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Old 11-22-2019, 10:50 PM   #10
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Thanks for the input guys, I ended up switching to a ets fm and a ibr brz manifold, Iím waiting for the flex fuel kit and killer b ewg header to come in and ill do it all at once. Iíll post a dyno in the dyno thread probably early to mid December
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Old 11-23-2019, 12:23 AM   #11
WRXnick16
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Quote:
Originally Posted by Actionwrx17 View Post
Thanks for the input guys, I ended up switching to a ets fm and a ibr brz manifold, Iím waiting for the flex fuel kit and killer b ewg header to come in and ill do it all at once. Iíll post a dyno in the dyno thread probably early to mid December
Great choice of parts!
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