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Guest Message by DevFuse

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My 86 Brat project

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3 replies to this topic

#1 illspen



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Posted 07 September 2013 - 03:44 PM

Ok been following this forum for a while, but I finally need some tech help.

1st, I bought both rear break calipers for a... 85 - 91 subaru brat, dl, gl or a 90 - 91 loyale, or 88 - 91 TX6.
First I can't find a mounting plate for the rear calipers, any sites or other compatibility options would be helpful.

2nd, can I use any pre-2000 legacy motor wire harness, say from 93 to 99, to do the ej22 upgrade?

If my questions are redundant, I apologize ahead of time.

#2 Gloyale


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Posted 07 September 2013 - 04:09 PM

You need the backing plate and hubs from a Turbo GL, GL-10, or XT to use the disc brakes.


Yes any harness will work.


90-94 ECU and harness are simple/stupid computers that work well for the swap.  Non-interference motor all dual port no EGR.


Newer model leagacies(95-99) the ECU will want to see fuel temp/pressure sensors which won't be on the Brat.  Easier to strip, OBD-II compatible......but more likely to have a CEL On for something missing like EGR, Fuel temp...etc.....  I keep getting a code in my 96 harness swap for "Mnufacturers EMmissions Control" that I can't figure out how to get rid of even with temp/pressure sensors installed.  Motors vary, some EGR, some not.  95 Dual port non-interference.  96 Single port non-interference. 97-98 single port interference.  99 phase II block/heads interference single port totally different heads/intake more like SOHC 2.5


IMO 96 EJ22 Impreza is best harness to use for easy strip and OBD-II.  But OBD-I ECUs are better for not throwing CEL.

#3 illspen



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Posted 07 September 2013 - 05:39 PM

Anyone know what size the rear differential support bushing is, mine is fried and will need to be replaced.

#4 illspen



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Posted 07 September 2013 - 05:41 PM

Tanks for the ej22 info, I was looking at several legacy models today, but didn't want to take one until I was sure.

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