lvsubaru Posted September 29, 2005 Share Posted September 29, 2005 I've done several searches, but can not find any details. I have a 78 Brat, and I have a spare EJ25 with harness, ECU, and sub-frame. Do I need to modify the frame to get the EJ25 to fit? Can I use the orignal sub-frame? Or do I have to use the new one? I'm planning on using a late model 5 speed, and rear end. I know I have to get a driveshaft made, but what about the axles? Will they fit? Thanks. Quote Link to comment Share on other sites More sharing options...
tailgatewagon Posted September 29, 2005 Share Posted September 29, 2005 there is a brat in AU running a ej20 sti motor. its had alot of fabing done on it and what not..... as for the motor fitting without any mods.well if the quad cam ej25 is the same as the single cam 2.2 size wise then i can tell you on sundaynight:grin: but looking at it you will probaly have to. some frame mods..... if i were you i would sell that crapy 2.5 (all 2.5's are in my opion since they blow headgaskets as much as ea82ts, and have piston slap probables clutch shuder problems. ect...) anyway then you could get a front clip from a jap wrx front clip and do a turbo swap. ......... Quote Link to comment Share on other sites More sharing options...
lvsubaru Posted September 29, 2005 Author Share Posted September 29, 2005 I've seen pics of a Brat with a STi motor, but there is no good pics of frame mods. My EJ25 is a SOHC. I bought a STi V.4 RA front clip for my 93 Impreza, I was thinking about doing the same for the Brat. I just need to talk with somebody who has done it already. Quote Link to comment Share on other sites More sharing options...
eddygordouk Posted September 29, 2005 Share Posted September 29, 2005 other than the brat, would any neewer cars need frame mods? i want to try to fit in a 01' 2.5 in my rx but i dont wanna do fram mods so as to pass ref inspection. can it be done? also if i interchange with aaany ej and wanted to also swap the tranny, what else needs work? i know driveshaft but wat about diff? axles? im lost with that part Quote Link to comment Share on other sites More sharing options...
offroadsubaruguy Posted September 29, 2005 Share Posted September 29, 2005 so long as your gears are the same, diff can stay, and the axles will be fine as well... i believe that the turbo stubs have the same number of splines as the early legacies, im not too sure about the later models though..... Quote Link to comment Share on other sites More sharing options...
tailgatewagon Posted September 29, 2005 Share Posted September 29, 2005 check out corkys home page i think he gos by dr rx, he put an sti swap in an rx... Quote Link to comment Share on other sites More sharing options...
lvsubaru Posted October 3, 2005 Author Share Posted October 3, 2005 Can't find a dr rx. Noboby's done this with a brat?? I guess I'll have to document my build real good. Quote Link to comment Share on other sites More sharing options...
TheSubaruJunkie Posted October 3, 2005 Share Posted October 3, 2005 You would be the 1st in the US to have done it. -Brian Quote Link to comment Share on other sites More sharing options...
lvsubaru Posted October 4, 2005 Author Share Posted October 4, 2005 You would be the 1st in the US to have done it. -Brian Sweet! I'll let you guys know how it goes. Quote Link to comment Share on other sites More sharing options...
tailgatewagon Posted October 4, 2005 Share Posted October 4, 2005 ive got pix of my test fitment of an ej22, in the other post here in the retrofit fourm. you can get an idea of what you will half to do to fit the 2.5 probably going to have to noch the fram a bit more then i will as the single cam 2.2 wont take up as much room as the 2cam ej2.5, you will have to widen your motor mount holes, i did it with a drill and a file. had to widen mine 1/2 in on each side. i test fit with ej motor mounts they worked grate.. will probably get some sti mounts to keep motor movement down... also the rad will fit but you will have to get pusher fans. as there will only be about 1in between the crank pully and the rad,,,, later Sweet! I'll let you guys know how it goes. Quote Link to comment Share on other sites More sharing options...
Kostamojen Posted October 4, 2005 Share Posted October 4, 2005 will probably get some sti mounts to keep motor movement down... Get the cusco engine mounts so you dont have any motor movement. Quote Link to comment Share on other sites More sharing options...
lvsubaru Posted October 4, 2005 Author Share Posted October 4, 2005 Cool. Thanks. That's the type of info I was looking for. I'll check out the other thread. Quote Link to comment Share on other sites More sharing options...
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