sweet!! ive seen 13bt's in subarus and now backwards. I wanna see where this is going

:boink: LOL I knew you had something already worked out. That is a nice looking bell, looks kinda beefy and strong to. Damn I wanna see this thing running, its gonna be some wicked stuff. So wanna adopt a 30 yr old man and his Rx7 lol wink wink nudge nudge :hahano:

But seriously what are you gonna be going up against? or What class are you building it for, assuming some modified class.

TECHNICALLY i'm breaking a rule with Rally America, Rally Car, Rally wtf ever they are calling themselves this week.

the rule pretty much states:

The engine is unrestricted, but must be derived (at least the engine
block) from a product line offered by the manufacturer of the vehicle.

yeah, oops. :D

i talked to the people at Rally whatever, and they told me "they will not stop me from running an event, i would just not be able to collect points for national championship". :jerkit:

who the eff cares, i can't afford to compete in the national championship, so i makes no flipping difference.

as for the cars you go up against, there is a whole list of G2 (group 2,, open class 2wd, no turbo) cars, from VWs to hondas, to old school saabs. it's a good group to be in.

should be fun, you know, when it moves under it's own power. :)

i'm hoping the bell housing will be done soon and this spring summer i get back out there. i have been holding off committing 100% to this motor until the bell housing gets totally done. but it's so close i can smell it.

Sweet, ive always wanted to try something like that but not a whole lot of places around DFW Texas. Hell as long as long as your having fun :nod:

Very impressive fabrication skills, not to mention the ability to think outside the box.

Nice man! Hope it all works out for ya! Nice strong drive train you could run a variety of motors off that as long as you don't have to rough up your cross member too much for mounting the boxer. 3s gte? SR20?

The only thing I have against subi flat fours is the lower cam bearing mount bit in the heads tends to crap out/chip after a while if the oil/coolant etc isn't looked after. This happened to my mate a couple times but he was dealing with 100k + mile motors so it could be an age thing too. He had spare motors lying around though so just helped him swap some bits over...

Anyway nice build dude look forward to the updates! :)

Nice work! I can't wait to see the finishing results.
I've been looking for someone that makes custom bell housings.

I don't know if you have decided on a motor path yet, but the high comp ej25/22 frankenmotor with delta cams is an absolute beast. It also runs on the stock ecu.

Isaac

shhhhh, dont be to loud. the 2.5 short block i got in the garage might hear you. ;)

but yes, thats the plan. :)

:nod: that is awesome. I am building one right now for my DD leg-wag, I imagine it is going to make your rx go a bit faster than my wagon.

Isaac

but any motor would fall apart if not taken care of. but i agree i'm actually a big fan of the dohc heads. the later sohc heads would actually flow just as much, but more compact, less complicated.

i also can't complain about the earlier ej22s. they are a great motor i definitely can't complain about the quarter of a million miles on my DD.


i can shoot you his contact info. but not until he's done with mine :D

here's my favorite picture from a little mazda dealer ship get together. i have not heard so much talk about shape of tail lights, and bumper trim, and ground effects. then they would start their car and rev the piss out of it.:facepalm:

Attachment 759073


and people do some crazy shit with old subarus. mainly lifting the crap out of them. some making them fast as hell.

Attachment 759074

Attachment 759075

it's all cool in my book. :D

Great build. My question is since you can obviously fabricate quite well; why didn't you correst the stock rear end issues? You should've welded up a panhard & 3rd link then threw the crappy watts and upper links in the trash.
https://www.rx7club.com/1st-generation-specific-1979-1985-18/fb-rear-suspension-geometry-problems-options-solutions-876479/

great thread!

funny you should say this, this is what I'm working on now. :)

Yeah maybe i should have thought about this from the beginning. but i figure at least one good thing about having all the stock stuff on there, the axle is placed where it's supposed to be, so at least i'm not fighting placement of an axle and the new links and brackets i'm going to add.

yea for working in the garage. Schools out for a week so i took a little time to do something, hell ANYTHING on the car.

In my theme of keeping things as easy and cheap and easy to find. I once again dig through my pile of subaru parts and find something that i didn't even think for a min would really work. But I had it there might as well try and see.

Well all be damn, who knew the brake booster from an old legacy shares the same fire wall bolt pattern as the rx7, interesting.

I know there are people out there that have done some i think 929 booster swaps. And that may work great for them, but in all my searching i never found a single 929 to pick at. But legacys are a plenty at my local yards and they have more options then the 929s did for masters.

lets start with the booster.

there are 2 types of boosters you find in old legacys, ABS and non ABS. The ABS booster are a claimed 9 3/4 in and the non ABS is 8 3/4 in. Now you sit them side by side and the ABS one really looks bigger then the non ABS.

(non ABS left, ABS right)
Attachment 759008

just as a side note, neither of these boosters would have fit with out flattening down the pinch weld right above where the booster sits. I just happened to come across a GLS-SE in the junk yard and is had this beautiful little spacer to space out the lager booster that the GLS-SE had.

Attachment 759009

so with that, i tried to put the ABS booster in, it fit, it cleared the fender, but oops it didn't clear the clutch master.

Attachment 759010

well, either i could try to move the clutch master over a little bit or, which is what i read in that "prep your rx7 for competition" they did back in the day, or i just try the non-ABS. well the non ABS fit just as well as the other one, and just barely cleared the clutch master. but good enough for me. :)

Attachment 759011

so it fits, what about the part that attaches to the brake pedal. Good news again, exact same size and thread size, the bad news is, it's just a little to long, easy enough, but then the threads don't go far enough. So as I originally planned this, i didn't plan on finding the spacer. The spacer made it easier, but still could be done with out it. So what I ended up doing was cutting more threads in the shaft of the push rod. this then would allow the adjuster and nut to move farther down the shaft then the stock subaru shaft would allow.

Attachment 759012

so with the a few new threads cut and just the tip cut off, i put on the mazda adjuster part on and adjusted everything up.

(subaru left, mazda right)
Attachment 759013

so why would i go to all the hassle (which really was like 15 mins)just to used a subaru booster. options. Not only down the road if i wanted to move the clutch master over to use the bigger ABS booster, but subaru had 3 different sized masters that will bolt onto any of their boosters. 7/8", 1" and 1 1/16".

Attachment 759014
Attachment 759015

and well frankly, i just happened to have all this crap laying around, so might as well make it work. :D

and here it sits, in it's new home. and cheap replacements are just a short drive to the JY away.

Attachment 759016

also on a super side note, even though all the masters will bolt onto any booster, there are differences between the ABS and nonABS, and it mainly comes down to the amount of fittings coming out of the master

The non ABS has 4
Attachment 759006

the ABS has 2
Attachment 759007

i'm going to be running the non ABS one and just cap 2 of them. I have done this in another car with no issues. it still flowed just fine and gave you all the pressure you needed.

I love it, looking great. Once i get my project on the road we really need to get them together, between the two of us we have a whole Subaru and a whole Rx-7 :)


Isaac

well there will be few toyota parts too, so we'll have to include them in the mix too. :D

i keep saying, it's going to be a cluster eff when it's done, but not one part was expensive, it's just going to take time, which i have plenty more of then money right now.

MWHAHAHAHAHAHAHA :egrin:

Attachment 758979

Not sure how I missed this build thread when you first wrote it, but i'm sorry I did! I'm loving the work you're doing and I love the combo of all the Suby parts in there!
Subscibed :)

Any updates on this subie powered monster?
 

This is what happens when someone puts Frankenstein's monster on HGH, deprives it of female companionship, beats it, and calls it dirty names... It just gets angry and destroys everything in it's way :) I love this car!!! What has been happening with it? Any updates?!

I'm curious to see if there are any updates as well!

Unfortunately after my brake booster install I had to pack everything up and move. With school done now for the summer and me having about 6 weeks off I'm going to get back on it.

So sorry no real updates other then I have plans of getting back on it here very soon. :D

Okay, so you basically just took both of my cars and combined them :D I'm usually the first one to whip out the flamethrower when I see pistons on here but this is pretty cool and I admire your ingenuity with this... thing... you're building. I rallycrossed my Legacy GT a couple years ago and actually ran against a couple first gens, so I wanted to take my first gen out and give it a try in the dirt. Unfortunately they quit having races after that season. I never thought of combining the two. Can't wait to see how it turns out.