Fredricks 1971 Corona MarkII
+4
a2ndopinion
RT85CORONA
Lope70Mark2
Fredricktflail
8 posters
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Re: Fredricks 1971 Corona MarkII
I still havent decided what im doing yet. I know that the trans is shot trans pan had a lot of clutch material in it and there was a hole in one of the filters. Imagine since reverse takes the most fluid pressure to go into gear and then hole it in gear that theres not enough of the reverse clutch left for the pump to be able to pressurerize it. I'd like to do a 3rz theres a couple other engines id like also. I'm gonna go see ive i can break the rest of the trans first though.
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
Have fun with that. Reverse is notorious for going out in a30's the rest of the gears are pretty solid up against our 50 hp 8r's.
70_Must_Trd- Posts : 41
Join date : 2013-04-20
Re: Fredricks 1971 Corona MarkII
The reverse brake band is known to break on the A30 due to stress over time caused by the owner not coming to an absolute complete stop before shifting into reverse. Except for that weakness it's a tough and long lasting transmission if the owner drains and refills the tranny oil pan once in awhile.
hilux- Posts : 2
Join date : 2013-04-21
Re: Fredricks 1971 Corona MarkII
I dont think the last owners showed the tranny much love the fluid looked good but that was prolly for the dudes before the tweakers before them and who knows who else ran the car into the ground. I'd rebuild it but i dont really wanna pull the 8r and the a30 out again and then put it back in again for the third time.
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
What do you guys think about a 7MGT-E in my corona. Will it fit easily? Id like some options espically from a2ndopinion.
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
7MG-TE would be a big job.They are a fairly long engine so recessing the firewall would be on the cards and extra weight over the front wheels would also be an issue.Have you thought of a 1G engine?Alot shorter than a 7M and roughly the same weight as the old 8R give or take.I have seen this done in an RT81 and I also did a 1G conversion in the RA40 I have but I have since removed it.
Cheers Brett.
Cheers Brett.
crowncustom- Posts : 9
Join date : 2013-05-20
Age : 55
Location : Australia.Tasmania
Re: Fredricks 1971 Corona MarkII
M series swaps are quite popular in Celicas, so I don't see why not in a Corona. JZs are becoming more commonplace as well. Usually just moving the radiator to the front of the radiator support is enough room, and then maybe a pusher electric fan. M series engine mounts can be mixed with 2xR mounts to bolt in.
a2ndopinion- moderator
- Posts : 272
Join date : 2012-10-17
Age : 62
Location : Portland, OR
Re: Fredricks 1971 Corona MarkII
I'd like to do a JZ engine but you can find M engines waaay cheaper they seem to have a large aftermarket plus their abudent in junkyards which should make it easy to nic nac's etc. I dont mind having to move things i just dont want to cut a hole in the firewall. You think a M engine is really that much heavier than the old solid cast iron 8R? Thanks for the input from both you guys. I'm gonna research it more but I think its a go, its gonna be a total freaking nightmare i imagine but should be fun. I imagine its gonna make the pinion gear explode. A 1g seems like a pretty nice engine but ive never seen one before and im a toyota freak so their pretty rare in my area. I have another question for you a2ndopinion is make 150 to 175hp a reasonable number for horsepower i could make with a 22r without spending 10k on it?
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
The 7M is the same difference as a 22r. A bigger, heavier 22r. We rebuilt one for a friend, and it bowed the engine stand.
They're underpowered, heavy, UNDERPOWERED, and they like to blow headgaskets.
Just my .02.
Maybe try for a Beams from an altezza?
They're underpowered, heavy, UNDERPOWERED, and they like to blow headgaskets.
Just my .02.
Maybe try for a Beams from an altezza?
70_Must_Trd- Posts : 41
Join date : 2013-04-20
Re: Fredricks 1971 Corona MarkII
The head gasket problems are easily corrected with a good aftermarket gasket and ARP head studs. I dont see how a corona with a 200+ horsepower 6 will be under powered. I think its too much to start with myself. Beams is a JZ engine right?
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
JZ's are probably easier to find in a Lexus. Just walk through a Lexus dealer shop...
150-175 is fairly easy with a 22R, especially starting with a late motor. A good port and polish, oversize valves with slight milling and a decent cam, plus a Weber or EFI, intake and exhaust, and you're right there.
I'm shooting for very close to a 200 HP daily driver with a late 22R/20R headed hybrid, with 10.5:1 compression, then maybe add a 75 HP shot of nitrous...
150-175 is fairly easy with a 22R, especially starting with a late motor. A good port and polish, oversize valves with slight milling and a decent cam, plus a Weber or EFI, intake and exhaust, and you're right there.
I'm shooting for very close to a 200 HP daily driver with a late 22R/20R headed hybrid, with 10.5:1 compression, then maybe add a 75 HP shot of nitrous...
a2ndopinion- moderator
- Posts : 272
Join date : 2012-10-17
Age : 62
Location : Portland, OR
Re: Fredricks 1971 Corona MarkII
Why do you use the 20r head?
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
It can be made to breath better with less work.
a2ndopinion- moderator
- Posts : 272
Join date : 2012-10-17
Age : 62
Location : Portland, OR
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
the weirdest thing happened reverse started working agian
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
I also cant see what im writeing wtf?
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
Agree! If you go to update a thread, the text and background is the same color. The only way to see it is to highlight it, and then take a stab in the dark when you go to make a change, Is there a way to change the colors?
a2ndopinion- moderator
- Posts : 272
Join date : 2012-10-17
Age : 62
Location : Portland, OR
Re: Fredricks 1971 Corona MarkII
I bought a weber kit for the car got the brakes all checked out etc just waiting for parts to do some shit to it now
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
Its Weber powered now kind of a pain in the ass to get the throttle linkage to work.
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You can see my 71 Celica M/C and the new booster i had to get. looks pretty good under the hood now.
I put carpet in and put the raggy old seats back in, still got some wires hanging around itll be fixed up later.
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And how she sits still looks the same minus the front bumper.
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You can see my 71 Celica M/C and the new booster i had to get. looks pretty good under the hood now.
I put carpet in and put the raggy old seats back in, still got some wires hanging around itll be fixed up later.
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And how she sits still looks the same minus the front bumper.
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Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
Well its finally up running and driving needs some front end work and shocks but for the first time since ive had it. it actully drives put almost 100 miles on it this week without pushing it once lol
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
And the Brake cap is off a 87 pick-up that I removed the sensor from
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
Bit of an update. It runs and drives been driving it every weekend bought a w-40 yet to be installed its got the correct brake M/C now all new shocks, fuel cell installed bought a header for a rhd car had to have it modified to fit and still ended up going back to stock. I got a 70 parts car lots of stuff has been going on with her ill need to put pick up
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
Since the above pics that were took in Jan 2014 a lot of mechanical progress has happed but it still looks ecactly the same minus the rims
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It sat around for about a year without being looked at then i decided to get on it again and I pulled the engine to fix all the leaks and a few other tasks the timing tensioners dident look very good so i replaced the whole chain assembly and every gasket but the head.
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During that time I also replaced all 4 shocks the sway bar bushing cleaned a bunch of stuff new front brake lines and pads and new rear wheel cylinders dident get any pics of that I also put a electric Oil psi gauge in it and a fuel pump relay and harness put New bolts in the converter the pressure plate bolts for 22r fit I used ARP.
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That Header was a pain in the ass it came from down under off Ebay but being for a RHD car it dident fit hit the steering box. I had it modifed to fit and it still has Issues Hits in a full lock left turn on the pitman arm and will be a nightmare to get a tailpipe attached to
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It sat around for about a year without being looked at then i decided to get on it again and I pulled the engine to fix all the leaks and a few other tasks the timing tensioners dident look very good so i replaced the whole chain assembly and every gasket but the head.
[You must be registered and logged in to see this image.]
During that time I also replaced all 4 shocks the sway bar bushing cleaned a bunch of stuff new front brake lines and pads and new rear wheel cylinders dident get any pics of that I also put a electric Oil psi gauge in it and a fuel pump relay and harness put New bolts in the converter the pressure plate bolts for 22r fit I used ARP.
[You must be registered and logged in to see this image.]
That Header was a pain in the ass it came from down under off Ebay but being for a RHD car it dident fit hit the steering box. I had it modifed to fit and it still has Issues Hits in a full lock left turn on the pitman arm and will be a nightmare to get a tailpipe attached to
Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
Re: Fredricks 1971 Corona MarkII
I went threw so issues with brake master cylinders though one was bad bought another turned out I forgot I adjusted the booster when I used the M/C for a 71 Celica. I also had a buddy make me a plate to cover the fuel tank hole in the trunk. He also gonna cut the bad part out of my dash and replace it with the piece from the parts car.
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Fredricktflail- Posts : 124
Join date : 2012-11-19
Age : 34
Location : Nor-Cal
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