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#V1/2 TMIC OR V3/4 STI TMIC help?

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 Post subject: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Wed Jul 02, 2014 2:10 pm 
First Gear
Joined: Mon Jan 10, 2011 12:02 am
Posts: 187
Location: Maryland DC-Area
I am in the process of getting a v2 wrx tmic for the car but ran across a v3/4 sti for a better price! Any writeups on how to install either one? Should I go for the v3/4? Any input would be great guys, I have searched high and low and cannot find any diy on the v3/4? I know the v1/2 is plug and play but a few guiding pics would be great too

Either I/C is intended for a 440 greytop upgrade and a mint vf8! So which will help the turbo spool better?

message me if you can help please!
Batlegacy


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Wed Jul 02, 2014 4:05 pm 
Fourth Gear
Joined: Sun Jun 10, 2007 4:35 am
Posts: 1734
Location: All over the place
As long as you arent running the VF11 still, they are virtually plug and play. These are both slanted intercoolers, the STI one being silver, right? If so, go with the STI one. However, if its one of the big square STI ones (similar to what the USDM STI has), it wont fit.

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93 Touring Wagon (EJ20G 5spd Swap) -- In storage while I work (and never get to play) in JDM-land.
00 Forester S/tb (predecesor to the XT) -- My JDM fling, dont tell my Touring Wagon!


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Wed Jul 02, 2014 6:41 pm 
First Gear
Joined: Mon Jan 10, 2011 12:02 am
Posts: 187
Location: Maryland DC-Area
The v2 wrx is slanted the v3/4 is the one that says "tuned by STi" on a namplate at the top, doesnt seem as big as the usdm wrx but similar


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Wed Jul 02, 2014 7:29 pm 
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Joined: Tue Aug 25, 2009 7:52 am
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Location: Des Moines, Wa
The later intercoolers dont fit size wise, and the blow off valve is way different and incompatible. Might as well get a usdm Wrx tmic if you're even considering the v3/v4. It doesn't fit well either but its way more efficient cooling.

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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Thu Jul 03, 2014 3:52 pm 
First Gear
Joined: Mon Jan 10, 2011 12:02 am
Posts: 187
Location: Maryland DC-Area
so the v1/2 it is lol? That plus 440s, a vf8, and a greddy bov with 10lb spring what kind of power gain capabilities am I looking at? Anybody?


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Thu Jul 03, 2014 3:58 pm 
Third Gear
Joined: Thu May 03, 2012 6:24 am
Posts: 742
Location: Bonney Lake, WA
to fully grasp the potential of this you would need some way to tune it. do you have a fuel cut defender? wideband? boost gauge/controller?

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Kris

'91 Mica White SS- "Gertrude"- R.I.P.
'88 White RX Turbo sedan- "Astrid"- SOLD
'91 Black SS- "Skaoi" - SOLD
'93 Silver Turbo Wagon- "Silver Fox"
'91 Black Camry Alltrac


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Thu Jul 03, 2014 4:19 pm 
First Gear
Joined: Mon Jan 10, 2011 12:02 am
Posts: 187
Location: Maryland DC-Area
No, that is the next step. I was told on here that with stock ecu, slanty 440s and the vf8 were ok upgrades (the ecu will adjust itself). My next step is to get an ems. What is a good option? Robtune, PP6, etc? EMS is definitely murky water for me so a comprehensive but user friendly system would be amazing.


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Thu Jul 03, 2014 4:54 pm 
Third Gear
Joined: Thu May 03, 2012 6:24 am
Posts: 742
Location: Bonney Lake, WA
like i said to grasp the FULL POTENTIAL of this you need to tune it. it will run fine without it for sure. if this is all youre planning to do to it, i would suggest rob's 440 tune. also if you dont have a wideband, boost guage, and boost controller, i would suggest getting those before or near to the same time you want to do all these upgrades. they will give you a much better idea of how your engine is performing at any given time and can prevent something catastrophic from happening!

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Kris

'91 Mica White SS- "Gertrude"- R.I.P.
'88 White RX Turbo sedan- "Astrid"- SOLD
'91 Black SS- "Skaoi" - SOLD
'93 Silver Turbo Wagon- "Silver Fox"
'91 Black Camry Alltrac


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Thu Jul 03, 2014 6:10 pm 
Fourth Gear
Joined: Sun Jun 10, 2007 4:35 am
Posts: 1734
Location: All over the place
I'll second the Robtune, that should really go in with the injectors IMO. Staying at10lbs will be fine on the stock injectors. It will run "fine" with the 440s on the stock ECU, but it will be run rich (which is safe, just inefficient). Thats really up to you i suppose, but they arent hard to get to so theres no reason they *need* to go in with the turbo and intercooler unless you intend on pushing the limits of the stock ECU.

There's other low-buck tuning options.... piggy backs, FCDs, etc. I would strongly recommend skipping that stuff and doing it right the first time with a Robtune ;) Its not exactly cheap, I think its about $500 all-in (ej20g ECU, robs tune, and the ignition converter), but worth it for a setup that runs like the car came stock with those upgrades. Plus Rob will give you things like launch control (or in my case uncontrolled clutch burn), custom red line, custom idle speed, custom fuel cut psi, etc.

_________________
93 Touring Wagon (EJ20G 5spd Swap) -- In storage while I work (and never get to play) in JDM-land.
00 Forester S/tb (predecesor to the XT) -- My JDM fling, dont tell my Touring Wagon!


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Mon Jul 07, 2014 7:26 pm 
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Joined: Tue Oct 15, 2002 11:37 am
Posts: 27111
Location: Houston, Tx
I'll third the robtune. The 440's will run rich as mentioned and it depends, some folks have run them fine on the stock ECU without problems, but others have noticed stalling and other issues due to running rich.

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Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: V1/2 TMIC OR V3/4 STI TMIC help?
PostPosted: Fri Jul 11, 2014 6:44 pm 
Third Gear
Joined: Tue Nov 27, 2007 2:43 am
Posts: 736
Location: tacoma washington
I use a slant mount one and for the fitment alone its freaking awesome, but i do have one i took off a forester I'm looking to sell has all the piping and is ready to go

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