Skip to content
View in the app

A better way to browse. Learn more.

Ultimate Subaru Message Board

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

EA82t in a EA81 car, what needs to be done?

Featured Replies

Ok,

How much of the wiring needs to be moved over? As in, is it just a bunch of wires from the engine to the ECU, or is it all intergrated in the wiring loom, and does that mean I have to take the whole loom out of the 82t and into the 81?

 

Just say I have a complete EA82T donor XT. I should have everything I need right? So by my research I should have to do something along the lines of:

Take the engine and crossmember and put in in the EA81. I will also use the exhuast out of the EA82T. Put the ECU in and the wiring. Anything else?

 

Thanks.

  • Author

Fuel pump, that's the only thing the car doesn't have. So, can I use any "XXXHP" fuel pump. Or do I have to use a EA82t original one?

Fuel pump, that's the only thing the car doesn't have. So, can I use any "XXXHP" fuel pump. Or do I have to use a EA82t original one?

i used an efi pump from a ford f250 as it had the 8mm sized intake which makes things a hellava lot easier. screwed it up under the tray in a coil bracket and ran a wire through the chassis rail up to the front where i used a relay to switch it. the only prob doing it this way is that the brumby return line is tiny, not really big enough for an efi car. you can run a new one in fuel hose, just make sure its well protected and secure.

  • 2 weeks later...

I am looking to do a similar swap... but I would replace my '92 SPFI Loyale with an '87 Turbo MPFI from an XT. I was told that the wiring harness will be nightmare due to the digital dash issue.

Ok,

How much of the wiring needs to be moved over? As in, is it just a bunch of wires from the engine to the ECU, or is it all intergrated in the wiring loom, and does that mean I have to take the whole loom out of the 82t and into the 81?

 

Just say I have a complete EA82T donor XT. I should have everything I need right? So by my research I should have to do something along the lines of:

Take the engine and crossmember and put in in the EA81. I will also use the exhuast out of the EA82T. Put the ECU in and the wiring. Anything else?

 

Thanks.

 

I saw your post on msefi.com I would just build a MS harness and not worry about any of the stock turbo wiring.

  • Author
I saw your post on msefi.com I would just build a MS harness and not worry about any of the stock turbo wiring.

 

Yeah, it turns out I am not going to be getting a EA82T. So I have other ideas.

 

I agree, I don't see why more people are just dumping the old harness and using MS. It seems it would be easier and more adjustible. I guess theres a lot of tuning to do though.

 

But as I said, on to my other idea. I will post more about it as I get it in motion.

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.