Nad_1990245

So to sum up: EA81 hatchback - must be rust-free (probably from west coast) and solid running (at least well enough to get back to NY lol). EJ22t engine with TD0516G turbo, 550cc yellowtops and a 550 Robtune ecu - should be good for somewhere btw 250-300bhp. Fuel System - hoping to utilize a deatschwerks300 in tank pump with stock sender if it will fit in the hole. If this does not prove to be feasible, then the stock sender and in-tank pump will be used, using the in-tank pump as a lift pump for a Deatschwerks 350iL or Bosch 044 pump plumbed in-line outside of tank with filter. This is very similar to a Volvo 240 setup which I am very familiar with. Front suspension - Impreza knuckles/struts/brakes. 5MT from 1996 legacy with XT6/RX center as per the "poor man's dccd" thread on legacybbs. rear end - legacy rear subrame modded to fit EA81, running a 3.9 final drive R160 also from legacy. Legacy/impreza brakes and struts out back also. Cost - anywhere from $2k-$3.5k in parts plus the $$ for the car plus many hours of time So that's where I'm at so far. This should yield a roughly 225-250awhp car that weighs around 2300lbs with a full-time AWD, DCCD setup. Should be amazing.

Yeah, whatever happened to this thing? Cool build.

Leaving this here as I wrestle with going with modding the legacy subframe or go the XT6 parts route in the rear. The ideas presented in that thread were similar to my own conception of how to go about installing the legacy subframe (I definitely would not go as gung-ho as this guy did with the shock tower treatments) I was planning on a tower to tower brace, just not as crazy as he did. Thanks to 86Bratman for finding this thread. http://www.rx7club.com/old-school-other-rotary-63/little-project-i-like-call-gloria-gl-re-ea-922472/

Finally found some information on front cross-member width differences, I had been trying to find this today: Measurements are as follows; Hole spacing, front to rear: EA-81 = 5-9/16" EA-82 = 5-9/16" ER-27 = 6-3/8" Legacy EJ18 = 6" Hole spacing, side - side: EA-81 Front = 31-1/4", Rear = 29-11/16" EA-82 Front = 32-7/8", Rear = 31-15/16" ER-27 Front = 33-1/16", Rear = 31-7/8" EJ-18 Front = 33-13/26" Rear = 32".

aaaand of course, that is NLA, as has been mentioned all over this forum. I did wonder why I was seeing it as it was Subaruparts.com that I found that part # at. The site is a little confusing in that it offers up 3 sets of rear end diagrams for the XT6 and 2 of them say "all exc. 4wd" but the 3rd does not and that one is the one I pulled that # from.

If I could import it into excel and fix it, I would but I guess your post will be sufficient correction for anyone who dares tread the choppy waters of this thread On a side note, when I was thinking of modding the Legacy subframe into the hatch, I had a complete brain fart and forgot to consider wheretf the gas tank would go. This car would be driven primarily on the street and so I need the interior to be functional. This rules out a fuel cell of some sort. Whew, glad that popped into my head now instead of later.

Found a very nice table of spring rates, upper and lower spring diameters for both front and rear for all ea82, legacy and impreza cars to '04 courtesy of NumbChux. Leaving it here.

Did some digging online, found new wheel hubs from Subaru available as mentioned in the updated list. A curious thing that I'm currently pursuing lists this particular hub as fitting others as well: "This product fits 128 vehicle variants. Subaru: 3 models, 128 variants between 1985 and 1991." I do not know yet how accurate this is. I will edit this post with new info (good or bad) when/if I get to the end of this particular trail. EDIT: Pretty sure that list is a load of crap, look at all the models this hub supposedly fits HUB-REAR AXLE This genuine part fits your 1991 Subaru XT 6 Your Price $187.84 Part Number: 23610GA041 This product fits 128 vehicle variants. Subaru: 3 models, 128 variants between 1985 and 1991. Subaru DL/GL/GL10/RS/RX 4WD-TURBO 3 DOOR COUPE 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX 4WD-TURBO SEDAN 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX 4WD-TURBO WAGON 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX DL-TURBO SEDAN 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX DL-TURBO WAGON 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX GL-TURBO WAGON 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX GL10-TURBO SEDAN 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX RX-TURBO 3 DOOR COUPE 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX RX-TURBO SEDAN 1985, 1986, 1987, 1988, 1989, 1990 Subaru DL/GL/GL10/RS/RX TURBO 3 DOOR COUPE 1986 Subaru DL/GL/GL10/RS/RX TURBO SEDAN 1985, 1986 Subaru DL/GL/GL10/RS/RX TURBO WAGON 1985, 1986 Subaru Loyale DL 3 DOOR COUPE 1990 Subaru Loyale DL SEDAN 1990 Subaru Loyale DL TOURING WAGON 1990 Subaru Loyale DL TURBO SEDAN 1990 Subaru Loyale DL TURBO TOURING WAGON 1990 Subaru Loyale DL TURBO WAGON 1990 Subaru Loyale DL WAGON 1990 Subaru Loyale RS 3 DOOR COUPE 1990 Subaru Loyale RS TURBO 3 DOOR COUPE 1990 Subaru Loyale TURBO 3 DOOR COUPE 1990 Subaru Loyale TURBO SEDAN 1990 Subaru Loyale TURBO TOURING WAGON 1990 Subaru Loyale TURBO WAGON 1990 Subaru XT 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT 4WD-TURBO 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT 6 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT DL 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT GL 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT GL-TURBO 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT GL10 1985, 1986, 1987, 1988, 1989, 1990, 1991 Subaru XT GL10-TURBO 1985, 1986, 1987, 1988, 1989, 1990, 1991

lol @ the phone issues, I know how that is. Once again, you have given me more food for thought and once again, your ideas are spot on. My thoughts with the R180 were in the direction of welding some standoffs back there with some reinforcement plates and directly bolting a legacy rear subframe to them utilizing WRX or STi stuff for the rubber (it's stiffer) for both the subframe and the diff - it would have been pretty much a beefed up legacy under there. At the time you posted this last night, I had been doing a lot of reading on the front and what to do there and in my head, I was almost where you ended up. One detail I could not find on Google for the front was how much wider the resulting track would be and how much wheel poke would result. In the rear, had I gone that subframe route, I would have gained 1/2" of track on either side. I freely admit that that was pure speculation based on data I found online and not actual measurements since I have neither an ea81 car nor a legacy to measure, but the data I found suggests that an ea81 car has a 58" width for rear track whereas the legacy is supposed to be at 59". This is why that idea appealed to me, combined with the fact that a lot of legacies came with 3.90 diffs (LSD or otherwise) and the ability to bolt an R180 in sealed the deal in my head. However, as long as the CVs and XT hardware could hold up to the torque of the 22t, that would certainly be the easier (and more likely to happen) route to take. EDIT: I have decided to go the XT6 route, it's just simpler, even if I break stuff

Thank you, awesome and cheap is my personal holy grail here lol

LegSportWag's Legacy running a 550 tune w/ the Rx/XT6 center diff mod...leaving it here for some inspiration! http://vid14.photobucket.com/albums/a311/Gratefuldead538/10649397_840448102667115_587298792_n_zps62a24161.mp4 Would love to see a 60 foot timeslip on that car - bet it's awesome.

Just thinking out loud here: wonder if I could use an R180 as it is factory LSD and swap ring gears...that would be convenient. I would be ok with using the larger rear hubs and all that that entails. One happy effect of all that work would be the fact that combined with the WRX 5 lug conversion up front, I would be at 5X100 at all 4 wheels - opens up a lot of possibilities for wheels and brakes.

I think the cheap answer for me in this case is to just procure a 3.90 diff (LSD or not) and swap the ring gear to any ratio LSD. This way, I figure I can get the LSD but achieve the correct final drive without dealing with backlash and preload by leaving the pinion alone. I realize I will probably have to do some grinding inside the case to do this, but no big deal.

Yes, that was what got my interest initially when I found that thread was the cost of the later, admittedly more capable transmissions versus this seemingly simple and cheap mod. I'm really hoping to hear that it's still together with no problems. I did note one possible downside to this mod: one is stuck with a 3.90 final drive. In my case, that was actually the ratio I wanted but I can see that being a turnoff for others tempted to try this. I am now looking into which cars came with LSD 3.90 rear diffs. There are not many.