BosoMKII's project! 56k cut your head off

BosoMKII

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#1
BosoMKII's project! 1973 Corona 7M-GE swap

Alright guys and gals, it begins. Actually it has begun some time ago, but I am just now to the point where I have enough photos and progress to make a somewhat interesting post. I am going to try and keep it breif and entertaining.

First, here is the car:



Its a 1972 Toyota Corona Mark II. MX12 chassis. Under the hood is a 2M straight six. 2.3L and carburated, it was rated at 120 something HP. It ran great and had ok power, reved nice and smooth. Horrible gas mileage though. That and the engine didn't seem to want it's oil in the crankcase, but prefered it on the pavement. Not only that but the engine was smoking like crazy. Bad valve seals I think. No matter. A replacement engine should fix all that. After some research I decided the 7M would be a viable swap. Meaning that I would be able to handle it myself. So a donor car was found:



One 1989 Supra N/A auto delivered to my brother's driveway. Not in great shape, but the guy assured me it ran. Plus, there was a W58, manual driveshaft, flywheel and clutch slave thrown in the back as part of the deal.








Dirty. Valve covers had been leaking. Power steering had been leaking. Oil everywhere.



Harness tagged and removed. Blue for stuff I need, white for stuff I don't.



Cleaning parts. I went through so many shop towels, wire brushes, and degreaser it is amazing. But I like clean engines better than I like dirty engines so it was worth it.





Because I don't have to smog this car, I am ditching all the smog stuff. Simpler, and it looks better. Trying to clean up the intake manifold I cut the vacume ports and throttle body coolant line fittings off. I also traced the outlines of the EGR gismo to make block off plates. The metal is the bottom from a Radio Shack project box I had laying around. Not very pretty, but it works. No one will really be able to see it anyway. Also, I used those allen bolt plugs you can get at auto parts stores to plug the hole in the water neck where a VSV was and a now-unused port on the intake mani.







Some Pacepooper headers came in, and I had to hacksaw the flange to get them to fit. I think the flange was drilled wrong, otherwise it would have been fine. Also, the rice boy in me loves the look of exposed cam gears. I think that the headers and visable gears combined will help give it a hot rod look that I am going for.


 
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BosoMKII

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Things starting to come together. The engine is just about ready. I still don't know if I will be able to use the oil pan and pick up off the 2M. Just have to wait and see.




Bud Light at noon.



MKII in the garage and we are about to start!





What a mess. The engine kept barfing coolant. A fuel line kept siphioning gas. And oil oil oil everywhere as usual. Some minor frustrations getting the engine out was showing on my brother and I's faces.






Thats the progress so far. Its been fun, but it hasn't even gotten difficult yet. Figuring out the oil pan that needs to clear the crossmember in the front, and the steering rack in the rear will be interesting. With any luck the 2M pan will bolt up to the 7M crankcase. 2M motor mounts should work, if not some combination of 2M and 7M will. After all that.....I still need to get it to run :1zhelp: hahahah
 

supra90turbo

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#7
I don't doubt that the 2M oil pan will fit the 7M block.
However, you may want to look into getting a 7M pan from a Cressida and oil pump to go with it. Cressy's are rear sump, let's just hope the sump is small enough to fit in the space provided by the Corona's bay.

Looking fan-friggin-tastic btw. That car would look sick lowered on some widened steelies... mmm... yes.
 

BosoMKII

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supra90turbo said:
I don't doubt that the 2M oil pan will fit the 7M block.
However, you may want to look into getting a 7M pan from a Cressida and oil pump to go with it. Cressy's are rear sump, let's just hope the sump is small enough to fit in the space provided by the Corona's bay.

Looking fan-friggin-tastic btw. That car would look sick lowered on some widened steelies... mmm... yes.
Thats interesting...I thought the cressys where front sump? But yeah, thanks for the advice. If the 2M pan didn't fit, I was going to use a 7M pan, oil pump, and pickup from a Cressida. Dunno yet really. Just going to have to take stuff apart and see what works.

Thanks for all the compliments guys! This is a really fun project so far.


And this just in!! My wheels arrived today!! My brother just sent photos ( I am at work )



The specs are 15x8 zero offset. As soon as I do a test fit with tires I will know how much I can lower it. Going to go for a "nice" drop. Not too slammed, but defininatly low.
 

IJ.

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#9
Boso: Nice :)

We got the sporty version here that had 160hp and back in the day they were a bit of a rocket so with 200 and torque it's going to be a blast!

One of the guys here has a 2JZ in one!
 

supra90turbo

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#10
D'OH!!! I'm dumb. I was mixing up my 7M junks... You're correct, Cressy's are front sump. The 7M pan won't fit then?
Sorry. Don't know what I was thinking... :nono:

are those sportmax wheels?
 

BosoMKII

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Oh yeah, Gianttomato over on Toymods right? Yeah that guy is really nice and has some nutter Coronas! 2JZ ITB maddness. He gave me some great advice about my project. The 2 door version you guys got in AU is really sexy.
Do you guys actually say "down under" or is that a stereo type?
 

BosoMKII

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#12
supra90turbo said:
are those sportmax wheels?
Yeah those are sportmax....I am a little embarassed to be rocking the ebay wheels. But I do like the style. Plus these gold ones where a limited run of only 10 sets.

Don't worry about the oil pan mix up. I am sure you have forgoten more about the 7M than I will ever know! :biglaugh:
 

IJ.

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#13
BosoMKII said:
Oh yeah, Gianttomato over on Toymods right? Yeah that guy is really nice and has some nutter Coronas! 2JZ ITB maddness. He gave me some great advice about my project. The 2 door version you guys got in AU is really sexy.
Do you guys actually say "down under" or is that a stereo type?
LOL it's a bit of a stereotype thing!
(no we don't say it)

Dave (Giant Tomato) Is a really nice guy he came over here early on in the development of Fatty to check progress and to say hi!

I love his Crown Wagon!
 

supra90turbo

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#14
BosoMKII said:
Yeah those are sportmax....I am a little embarassed to be rocking the ebay wheels. But I do like the style. Plus these gold ones where a limited run of only 10 sets.

Don't worry about the oil pan mix up. I am sure you have forgoten more about the 7M than I will ever know! :biglaugh:
I wouldn't be ashamed at all of those wheels. Sometimes it's just not feasible to buy the true JDM old school wheel due to lack of circulation, discontinued, and they wouldn't look half as good as these do, since they're new!
That said, I'd run sportmax wheels on my supra no problems.... because, chances are the only person who will say anything is the guy driving the Hyundai Elantra, and he can fuck off. ;)

I doubt I've forgotten more than you know..... yet.

BTW: a +1 right back atcha
 

BosoMKII

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Seriously! I was looking at some Work Equip 01 and Equip 03s.....looking at about 1600 shipped. I find some nice SSR MKIIs ( fitting, no? ) on yahoo auctions .JP and they go for LOTS of money.

$800 Corona.
$500 Supra for the engine/tranny.
$1600 wheels? Negitive.

So yeah. Buget wheels for me! Thanks for that sledgehammer of a + hahahah

1J: So I guess you guys don't ride kangaroos to work either? J/K stupid joke.
According to my resarch, Austraila is the coolest place in the world. I really seriously want to go there some time. I am a bit of a wine enthusiast, and Australia makes some top notch stuff.
 

BosoMKII

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#17
HellsLegion said:
I want a corona for a DD......
Ask and ye shall recive: http://www.craigslist.org/pen/car/169547817.html

That is the chassis before mine, and came with a 4 cyl. 18RG swap? 22R swap? Those would be fun. There are a lot of hot rod parts for the 22R actually.

I will be working on the car today and tomorrow, so hopefully I will have at least a few more photos of progress.

Just to keep you guys entertained, here is the photochop that is my avatar:



I asked the guy who made the front lip on my Nissan 240sx if he would be willing to make some custom one-off stuff for my Corona. He really liked the idea and offered to "sponsor" me. I didn't ask what he ment by that, I am guessing me only paying for materials and then sporting stickers on my car ( No, sorry. No stickers on the Corona ) He asked me to send him some photos of what I was looking for and then he photochopped some stuff onto a photo of my car. I still don't know if I will do fender flares. I don't think I will have to. So the front air dam will be the main deal.

HellsLegion, we should have a NorCal meet for Supras, Cressidas, and whatever. See the Corona then! I think that would be fun.
 

BosoMKII

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No not mine. I just found it this morning. The guy knows those wheels are worth money, so he is probably selling them seperatly or on the car for more $$.
It could be a pretty sweet car. Rust is the big issue when looking at old Japanese cars.
 

Big Wang Bandit

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#20
Looks nice and all but just from one pic it looks like the hood is all bumped up. unless it just isnt sitting right. Ill wait till I find a really nice one. Or just buy my 86.5 supra...

A supra/cressy/corona meet sounds like fun. Gotta try for it sometime.
 

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Not much of an update, but something. Yesterday was mostly just cleaning. I took out the battery tray and it is done for. Between two sheets of plastic the tray was mostly just powdered metal and rust flakes. Sounds like a breakfast cereal. Stays crunchy even in milk! ( Ren and Stimpy reference, thank you very much ) So I think I will move the battery to the trunk.
The brake master cylinder had been leaking at some point in its life, and there is a lot of corrosion around it. I haven't taken it off yet, but it looks to be only surface corrosion. I didn't really want to do this because I am lazy, but it looks like I am going to be taking everything out of the engine bay for a more through cleaning and stop rust job. I still have not found anything worse than surface rust, and its all from the battery and BMC. So thats good news.
Test fitted the wheels and it looks really nice. No clearance issues at all with any of the suspension. I didn't think to jack up the suspension arms though, so all I have are these pics of the wheel miles away from the body. Don't think I will be doing fender flares. Probably just a roll for tire clearance.





The old 2M gets no love. We just pushed it into the bushes. Some guy was walking by and said he will take it away for free. I guess he sends them to Guam or someplace and rebuilds them for racing. Cool.

 

xarewhyayen

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#24
brilliant project! best of luck with it.. whats a corona weigh btw? Cant wait to see and hear you talk about the final product.
 

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#27
I wouldn't doubt it's far less than 3,000lbs...
It may be all steel, but it's a full steel 70's car. It's not an american iron 10,000lb rustbucket, it's a little japanese tin can.
Just look how light 510's are....

I love the way those wheels look already...
 

BosoMKII

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When I first saw the wheel color in the photos I was a little worried. But now that I see them in person and with the color of the car I am really happy with them! Thanks for the compliments.

Your right, these cars where built so different than the American cars of the day, and any car that came later. I am hoping it weighs under 3K. Once she is done I want to see what kind of trap speeds I can get. I will not be launching hard, or with good tires, and granny shifting. Hopefully I can match a N/A Supra. Reading this thread: http://www.supramania.com/forums/showthread.php?t=19015 seems like its not too lofty of a goal.
IJ, did the 160hp version all have the 4M? Man that would be a fun car to drive!
 

IJ.

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#29
Boso: Not sure which motor I just remember they were very quick and had either twin carbs or triples!

One of our home grown "super cars" back then was an XU1 GTR Torana and the first version had a 186ci pushrod highly tuned I-6 with triple sidedraft carbs that was blisteringly fast for what it was and it had 160hp factory!

 

BosoMKII

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Damn that thing is hella rad. Kinda looks like an RX-3 in the back with a Chevy Nova front. Sounds like something to beat up on the Datsun Z cars with!

Just did a quick Google on Torana. Holden is the parent company. Super cool thanks for the new entry into my brain archives!
 

IJ.

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#31
They started life as 1.2L 4 cyl Vauxhall Viva's and some brain at Holden decided to shoehorn the 6 into one and a local legend was born!

The XU1's were homologation specials for Bathurst where they had to sell xxx road versions to get them in!

A bit primative but they were very light weight and fast!

In a fit of insanity I dropped a Crower injected 427 Chev into one with a tube frame ;)
 

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#34
Sweet. What is your next project? How about a 1300cc Hyabusa powered Huffy 10spd?
Your crazy man! How fast did that thing go? I LOVE the stacks out the hood.
 

IJ.

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#35
LOL dunno never did a full pass in it just played around on the streets ;)

It would wheelstand at will though!

Used to take friends for a ride and watch them just about load their underwear when it pulled the fronts up to about 3>4' off the ground!
 

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#36
Wheelies in a car? Nucking futs. I thought that was pretty much just sport bike territory.

Got a little more done today. Took the whole front end off. Anytime I think there is something I will be able to just leave alone, I kick myself for it and remember that the time is now for cleaning it all up. I was worried about the area around the BMC and CMC but its all good. Just more minor surface rust. Making progress, but still so much work to do! Vacation tomorrow, so no updates until next week.

 

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Hm not much. I was out of town for a week! I left everything just like you see it in the last photo. Tomorrow I should at least be able to finish painting the engine bay. With any luck, I will be fitting the engine by the end of the week.
Thanks for your interest!