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Location:
Melbourne, Vic
Registered:
October 2004
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Corona Mk2 Conversion
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Sun, 17 October 2004 03:18
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Hi Guys.
In the quest for more power, I am going through ideas on what conversion to carry out on my mx10 mk2. Looking at the 7mgte and 1jzg(t)e, these all look so good but the cost seems quite high. Thinking of going an M-teu. Are these available in half cuts through special order, or are the early soarers just about obsolete in japan now? I know the power increase wouldnt be as much but i assume it would be easier to pass engineer inspection with the m-teu. Any other ideas???
Thanks,
-Phil
p.s. Cambelt & G.T. - Keep up the bloody good work, you're an inspiration!! 
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Location:
NSW Engadine
Registered:
June 2003
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 04:49
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Ive seen 7MGTE's in MKII's before... but i have absolutely no idea on how it goes or how to do it...
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Location:
Brisbane
Registered:
May 2002
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 06:16
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M-TEU's are old, and not very common (and not very powerful anyway...). And to be honest I wouldn't go that way! I think engineering will be easy as if you stay with an 'm' series engine anyway.
7M-GE would be another option, but 7mgte is prbly the easiest/best bang for buck (1jz requires sump mods, and also rack and pinion steering conversion...)
I'd say the 7mgte 
Cheers
Wilbo
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Location:
Melbourne, Vic
Registered:
October 2004
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 06:21
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Yeah i see where your coming from.
I was thinking that if the engine number on the m-teu was the same format as my 'M', i could swap the inlet exhaust manifolds, fit the engine and take it to the rta for engine swap inspection, and fit turbo / injection manifolds upon returning with that engine block registered in the car.
kinda dodgy though ey! 
hehe
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Location:
Brisbane
Registered:
May 2002
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 06:44
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Yes, dodgy - you'll still be driving around in an illegally modified car, and any insurance you have will be void. Do it the right way or don't do it at all!
I agree with Wilbo, don't waste time with the M-TEU. If you want a relatively straightforward performance upgrade, the 7M-GTE is the way to go.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 07:38
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7MGTE definitely worthwhile.
There was one running mid 12s here in Melb. The other runs low 13s.
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Location:
Melbourne, Vic
Registered:
October 2004
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 08:09
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Dave, What have you had to do in regards to brakes and suspension in the mx23?? I know of the ms112 rear end upgrade, what about fronts??
Well from the advice so far, the 7mgte is most likely the path i'll take. Any major structural mods required?
Thanks for all the help so far guys.
-Phil
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Corona Mk2 Conversion
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Sun, 17 October 2004 11:03
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The MX23 runs 330mm front rotors and 307mm rears.
My MX13 sedan runs 266 mm vented rotors with modified twin spots and the MS112 diff with vented 261 mm rotors. Cambelt is very happy with his (very well maintained) standard braking system.
In terms of engineering, the standard brakes will pass, but you really would want to consider an upgrade.
No real mods needed for the conversion, except for slight modification of the gearbox crossmember. Use a W58 gearbox - it fits in the tunnel nicely. I think you can even use the standard tailshaft.
Unfortunately the MX10 has the smaller radiator, so you would want to make sure the cooling system is tiptop.
The other major issue is room for an intercooler comes at a premium, particularly if you have an AC.
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Registered:
June 2004
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Re: Corona Mk2 Conversion
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Mon, 18 October 2004 00:07
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i think he could try a top- mounted cooler, there's plenty of open bonnet space to cut out for it. piping could be tricky. needs to get a later mx13 3-core radiator or better for it hey? GT, any bolt-on front calipers for a mx22? it's only got 14" inch wheels so i can't really get bigger discs. i was gonna get an rt142 irs setup, with discs, what do you reckon? how strict is engineering over where you are? i'm in tas.
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Location:
Melbourne, Vic
Registered:
October 2004
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Re: Corona Mk2 Conversion
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Mon, 18 October 2004 08:15
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Im running 15" wheels so i can fit the larger brakes. From looking through previous discussions, i am highly considering 60 series landcruiser calipers on the front with peugeot 604 slotted rotors on MS85 hubs. For the rear - RN41 hilux diff housing & axles with 3.9:1 4pinion LSD & MA70 diskbrake setup. This would give me an 5 stud pattern at each end. I do not have a/c so this will not be a major problem. I wouldnt mind upgrading to pwr steering, i assume the mx13 box would be usable. The W58, This is the celica 5speed? I heard that the r154 was a tight fit. I will be replacing all suspension bushes, urethane for those available. Also new springs and shocks will be fitted. The 215/60R15 that i have are too close to the rear guard lips, so i may look for different offset wheels when it goes 5stud, if not, i guess ill have to loose width (and traction  )
The Mk II corona is such are great looking car (in my opinion) so the 7mgte will give it the performance it deserves.
Thanks for all the input, I think that this is all very do-able.
- Phil
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Location:
Brisbane
Registered:
November 2002
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Location:
Melbourne, Vic
Registered:
October 2004
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Re: Corona Mk2 Conversion
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Tue, 19 October 2004 08:54
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Thanks for that advice 7m. I had seen your article - Great stuff! I will look into the magna disks. They may require the centre being machined larger, but this is no biggie. Being 5 stud, they may even be better suited to the ms85 hubs. The reason i would like to use the hilux rear is the availability of the lsd centres, i could not find info on this for the ms112 rear. The rear supra disks would actually be bigger (291mm) than the fronts i would use (273-276mm) but they have the handbrake drum in the middle so the pad area is not that big. Hopefully this is not an engineer issue. Intercooler pipes through the front bar sounds good, ill have to hunt down a pic of a Evo 6 i/c. I will price up the calipers / rotors this weekend, they'll be upgraded before i aquire a halfcut. Anyone got P/S gear for a MX? Or a bigger radiator??
Regards
-Phil
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: Corona Mk2 Conversion
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Tue, 19 October 2004 09:19
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I have done the Magna rotors conversion and can talk you thru it. You'll need to machine out the centres and also chamfer the edge of the hat to clear the caliper. I have a range of pics I could send you.
DO NOT USE MS85 HUBS - THEY USE DIFFERENT WHEEL BEARINGS. Use MS65 ones.
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Location:
Melbourne, Vic
Registered:
October 2004
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Re: Corona Mk2 Conversion
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Tue, 19 October 2004 09:28
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Thanks GT, you have PM.
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Location:
Edmonton, AB
Registered:
June 2005
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Re: Corona Mk2 Conversion
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Fri, 03 June 2005 21:32
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Hi everyone,
It's been excellent finding a knowledge base for this kind of thing. Until today I figured I was the only guy on the planet who still had an MX13 - turns out I guess I'm just the last one in Canada. I have no clue why this forum never came up in any of my prior searching. Before, searches for Corona MarkII only led me to typewriters and parts bins...
I hope to share my experiences now that I know there might be an audience... it's cool knowing that all the plans I had for my car have been realized elsewhere - that I'm not far off.
I'm looking forward to hearing from other MarkII owners...
-Kevin
'76 Corona MkII MX13
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Corona Mk2 Conversion
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Sat, 04 June 2005 13:38
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| gianttomato wrote on Tue, 19 October 2004 19:19 |
DO NOT USE MS85 HUBS - THEY USE DIFFERENT WHEEL BEARINGS. Use MS65 ones.
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MS65 hubs are the goods, if you're lucky enough to find them. You CAN use later Crown hubs, just need to use different bearings and give the hub a little bit of love on the lathe. I've used UZS131 hubs on both my cars this way without any issues.
ozzy - yes, there are people in this world that still show these cars the love they deserve - cambelt and gianttomato will be overjoyed to find more people who share their passion. Else they'll be exceedingly jealous...
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Location:
Melbourne, Vic
Registered:
October 2004
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