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Stew's '98 L wagon - Bastard JDM Swap + Standalone ECU Daily
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Old 06-29-2017, 12:56 PM   #31
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Default Stew's '98 L wagon - A daily driver project

Well, this came a day earlier than I expected.


So, originally my plan was V2 WRX EJ20G since they're pretty cheap, pretty simple, and pretty solid engines. Welll, I found a V4 EJ20K in my price range so I pulled the trigger.



And this being a '98 engine means that the wiring is actually very similar to the L. 2 of the 3 main engine plugs are exactly the same and the other is a simple connector swap. Basically I'll be able to plug this engine in and do all of the merge at the ECU connector. A little different from my original plan but way easier.

So! Now to collect the rest of the swap parts...


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Old 06-29-2017, 12:58 PM   #32
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Right on!

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Old 06-29-2017, 07:17 PM   #33
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Woohooo for engine swap.
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Old 06-30-2017, 06:28 PM   #34
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Started taking the intake manifold off to clean and repaint it. Sooo there were red chips of paint everywhere. Super annoying and hard to not get debris in the intake ports.



Checked out the turbo while I was in there. Feels nice and tight, spins freely. Good to go.


Sprayed the manifold down with paint stripper and wire brushed it clean.


VHT wrinkle black...


Baked it on the grill for an hour...




Voila






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Old 07-01-2017, 01:57 AM   #35
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Wow that manifold turned out really good man!

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Old 07-01-2017, 09:12 AM   #36
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shite yeah it did!!
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Old 07-01-2017, 09:21 AM   #37
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Thanks dudes. The painting part is easy honestly. It's stripping all the fuel lines. Pcv, and Evap shit off that's the worst part.
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Old 07-02-2017, 03:59 PM   #38
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Default Stew's '98 L wagon - STi swap & budget standalone inbound

Started in on some of the wiring since I have the engine harness off. Three items need to be changed...


1.) Change the "E1" connector to match the '98 L harness
2.) Move the IACV Pins from "E2" to "E3" to match the '98 L harness
3.) Re-route "E2" and "E3" so it can reach the '98 L harness at the center rear of the engine.

I happened to have an extra "E1" connector off of an EJ25D harness. So, followed my diagrams, and wire by wire...



Cam position done...


Crank position done...


The two wires hanging out are for Knock sensor. Microsquirt can't use the stock knock sensor without an external knock amp. Usually the knock feedback on standalones is not great anyways. For now I'll be going without it so I de-pinned these and wrapped them up.


Item 1 done...


Next is to move the IACV circuit to the correct connector. Pins 2 and 3 on the IACV connector need to move. Pin 1 is wired to power from the Purge solenoid connector. Here's how the E2 and E3 connectors compare...




Depinned them and stripped back the looms, then moved to the E3 loom.



Empty E3 pin 6...


Populated with IACV pin...


Empty E3 pin 8...


Populated with IACV pin...


Wrapped up and Voila...Item 2 complete.


Next I unwrapped the E2 and E3 looms from the cam position sensor. These need turn back towards the center of the engine.



Wrapped up and item 3 is done.


There may be more wiring, as I'll need to incorporate an IAT sensor but I need to find a location for it on the manifold first.

I also got my air filter and elbow in. I painted the elbow and the coolant header tank in wrinkle black.






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Old 07-02-2017, 04:07 PM   #39
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Your wag is super clean. Glad your putting some turbo power in it.

Are you doing a speed density tune? My v5 wiring harness has a iat sensor coming off the same strand as the maf. It's just dangling infront of my intake right now.
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Old 07-02-2017, 04:15 PM   #40
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Default Stew's '98 L wagon - STi swap & budget standalone inbound

Quote:
Originally Posted by WhiteScooby View Post
Your wag is super clean. Glad your putting some turbo power in it.

Are you doing a speed density tune? My v5 wiring harness has a iat sensor coming off the same strand as the maf. It's just dangling infront of my intake right now.

Thanks man!

I'll be using a Microsquirt ECU which uses a MAP based control strategy. So, no MAF needed, however I'll have to install an IAT sensor in the intake manifold. I'd like it to be contained on the engine harness so I'll see what I can whip up.


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