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Always some good updates!!!

You keep going like you are, you might want to consider buying a fully built IPT trans! (I just recently pulled mine) 😉

I'm taking my auto back to semi stock-ish power levels.
Replaced with a STI swapped XT and a 99 RS coupe that's 06 WRX swapped.(for right now)
 

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Hi Tweak,

Your car is such an inspiration. I've read your journal from start to finish! You and Winnerone have given me the idea for installing a baja TCU/Sport shifter!

I've been on the phone with an auto parts dismantler this week about sourcing the TCU/sport shifter, and am pumped to move forward with an install in a few months!

Quick q: Which plugs did you get from iWire to connect the sport shifter to the TCU?

Cheers
Had some questions come up regarding the VTD/Sportshift Wiring, so I wanted to post some additional in formation as it wasn't 100% clear from my previous posts or others on the forum of the exact wiring. Here is the wiring diagram from the baja and we are just looking to reproduce the wiring for the sport shift itself which I've highlighted in red.

View attachment 522392
So Plug B237 is on the shifter itself. Mine came from the junk yard with the pigtail intact, so I simply spliced those wires into some extra wire I had laying around. Pins 3, 4, and 6 can all be tied together and grounded to the chassis somewhere. I used one of the mounting bolts from the shiftier itself without any issues.Pints 1, 2, and 5 need to go to the baja TCU. You'll be looking for plug B54 on the TCU and the pins will be 15, 9, and 3 respectively. I had to get some plugs from iWire to connect to my TCU and just added those on to the wiring.

Honestly, the hardest part of this is that subaru looks at the plus kinda funny for their pinouts in comparison to other wiring diagrams i've used before. My hint is pull the plug for b54 and look at it as a reference. You can clearly see the center plastic tab in the above illustration is offset to the left, so when you are looking at the plug, make sure it looks the same, that will give you the correct orientation for the pin numbers, then just use the same reference for the b237 plug. Also, I believe B54 has a pinlock built into it that you must first release before you can place the new pins in, be careful to not accidentally release other pins while working in there. Overall, pretty easy once you have the above information.
 

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Discussion Starter #143
Hi Tweak,

Your car is such an inspiration. I've read your journal from start to finish! You and Winnerone have given me the idea for installing a baja TCU/Sport shifter!

I've been on the phone with an auto parts dismantler this week about sourcing the TCU/sport shifter, and am pumped to move forward with an install in a few months!

Quick q: Which plugs did you get from iWire to connect the sport shifter to the TCU?

Cheers
Thank you very much!

Here is the link to the terminals I got.
 

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Discussion Starter #145
Got a bunch of parts recently, nothing super exciting
Always some good updates!!!

You keep going like you are, you might want to consider buying a fully built IPT trans! (I just recently pulled mine) 😉

I'm taking my auto back to semi stock-ish power levels.
Replaced with a STI swapped XT and a 99 RS coupe that's 06 WRX swapped.(for right now)
We'll see for sure. I don't plan to launch or drag my car, just a quick daily and there are quite a few others pushing far more power than i'm planning for daily without issues for years, though a few out there who blew theres up in a few months. Kinda hard without knowing all the details, but we'll see. If it comes down to the transmission failing, I may look into a 6mt swap. It will cost a bit more and is obviously more involved, but the overall gain once you have a built motor is quite substantial.

Also, the current VF48 is a torque monster down low, hoping a bigger turbo can delay that torque spike a bit and ease into the power a bit more elegantly.
 

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Got a bunch of parts recently, nothing super exciting


We'll see for sure. I don't plan to launch or drag my car, just a quick daily and there are quite a few others pushing far more power than i'm planning for daily without issues for years, though a few out there who blew theres up in a few months. Kinda hard without knowing all the details, but we'll see. If it comes down to the transmission failing, I may look into a 6mt swap. It will cost a bit more and is obviously more involved, but the overall gain once you have a built motor is quite substantial.

Also, the current VF48 is a torque monster down low, hoping a bigger turbo can delay that torque spike a bit and ease into the power a bit more elegantly.
I only ever went to the strip, once.. I'm not a big fan of launching mine either.
I'm more into just doing rolling pulls, when I see open road..

As for the IPT trans.. is for way more than that!
High stall TC, valve body, extra clutch packs, and the VTD center diff.. plus whatever other little porting and touching, John does..
The car seemed faster at 4,600rpms, then at WOT.. (right in the meat of the power)..
You literally couldn't tell the trans was shifting! Soo smooth!!!

I have a VF in my RS.. The torque is fun!
My tuner suggested a meth kit on the VF, instead of the Dom 1.5xtr..
That doesn't get rid of the torque monster feel though.. (which is what I want, in my RS)

VF with meth, 360-380whp
Dom 1.5 xtr on 93, 350-360whp

I already own a meth kit and I like the punchy torque, in the RS.. With that said. I want a Dom 1.5xtr and meth! 450whp... (Weeeeeeeeeeeee)

In my STI swapped XT, I run a Dom 3 at 420whp.. I enjoy the less torquey punch and the mass power..
Was going to use the meth kit on that, but a friend had a rotated kit that was too big for his motor.. Now I'm going rotated over the winter. 😃



As for "you might want a STI oil pump"..
A oem 10mm oil pump is all that's needed.

Lot of ppl go too big with a oil pump.. it pumps too much oil and heats it up.. We don't want burnt oil!
Like going with a radiator that's too big.. too much volume of coolant, doesn't cool..
 

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Discussion Starter #148
While the engine is out you may want to look into the killer b oil pick up tube as the stock ones fail often. Not 100% but you may need a different oil pan?
Not sure if you’d want an STI oil pump at that point as well?

I have a 4eat too and dream often of doing a manual swap. Even just the five speed.
Got this on my list, will need a new oil pan for the ELH headers from killer B I now have sitting in my garage :)
 

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Discussion Starter #149
I only ever went to the strip, once.. I'm not a big fan of launching mine either.
I'm more into just doing rolling pulls, when I see open road..

As for the IPT trans.. is for way more than that!
High stall TC, valve body, extra clutch packs, and the VTD center diff.. plus whatever other little porting and touching, John does..
The car seemed faster at 4,600rpms, then at WOT.. (right in the meat of the power)..
You literally couldn't tell the trans was shifting! Soo smooth!!!

I have a VF in my RS.. The torque is fun!
My tuner suggested a meth kit on the VF, instead of the Dom 1.5xtr..
That doesn't get rid of the torque monster feel though.. (which is what I want, in my RS)

VF with meth, 360-380whp
Dom 1.5 xtr on 93, 350-360whp

I already own a meth kit and I like the punchy torque, in the RS.. With that said. I want a Dom 1.5xtr and meth! 450whp... (Weeeeeeeeeeeee)

In my STI swapped XT, I run a Dom 3 at 420whp.. I enjoy the less torquey punch and the mass power..
Was going to use the meth kit on that, but a friend had a rotated kit that was too big for his motor.. Now I'm going rotated over the winter. 😃



As for "you might want a STI oil pump"..
A oem 10mm oil pump is all that's needed.

Lot of ppl go too big with a oil pump.. it pumps too much oil and heats it up.. We don't want burnt oil!
Like going with a radiator that's too big.. too much volume of coolant, doesn't cool..
I wish someone with an IPT transmission lived close so I could give it a feel. the VTD with manual shift is night and day difference, so its hard to imagine it getting better. High stall is likely going to happen as I have a spare TC laying around from my VTD swap. From what John has said, this will make the biggest difference in the performance and reliability of the transmission. Guess we'll see over the next few months!

Kinda sucks have all these brand new parts sitting in the garage that I cannot use for a while :(
 
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