2JZ into MKIII???

[Rdline1]

Never heard of it done....how easy would it be? i did a couple searches and couldnt find anything

[Whaazup17]

isn't a mk111 a supra??

I dont see why you can't do it

-garrett

[Rdline1]

mkIII is the 3rd gen supra. 88-92. i know the 7m has tons of tuneability i just think itd be cool to go 2jz if it isnt too hard...

[cassio]

correction the mkiii is 1986.5-1992, and it has been done...

[Kirk]

Has been done, I gave up on mine..

[Kirk]

use the R154 tranny, get 1JZ bellhousing and 1JZ motor mounts... you can use the getrag 6SP but it will take alot of beating on the tranny hall and the shifter will sit a little farther back...

[tampamax]

Do a yahoo search under "toyota supras" and look for a web site out of the Netherlands. You should find it on the first or second page of the search results. The guys name is Arnout and has more than all the info you are looking for on that subject matter and much more.

[tampamax]

Never mind looking it up, i did that for you, just use this link. www.supras.nl

[Rdline1]

cool site. it had links to lots of other supra sites. i didnt know the 7m was so strong. maybe i could go that route.

[tampamax]

Shoot Arnout some questions, he's more than knowledgable and willing to help you decide what will work for you.

[kbprice]

There is a shop in South Florida that does 2jz swaps into MKIII's all day long. Not sure of the name but I'll look.

[Kirk]

Originally posted by Rdline1
cool site. it had links to lots of other supra sites. i didnt know the 7m was so strong. maybe i could go that route.

7M's are not as strong as people say they are :lol:

[Rdline1]

ive heard of over 450 to the wheels on stock internals. thats pretty impressive to me...

[Kirk]

For how long....? :lol: Mine lasted a week

[TurboJZA70]

acually kirk there was nothing wrong with your internals. they where squiky clean. your old block is still sitting in my back yard. nice and rusted now.

[Kirk]

I know a knock then I hear one.. :lol:

[Rdline1]

well knock is gonna kill the engine no matter how well its built isnt it? im sure as long as its tuned well it should be ok...

[Kirk]

I know a couple of guys with high horsepower 7M's.. and its nothing but problems. One of them was able to run low 11's.. and car never ran since then. It's rare to see a fast MK3.. since alot of them are down or having problems.

[lofer]

There was abig article in a recent 2ner mag about a jspec mkiii with a 2jz swap. It was a wapping 900 hpstreet car.He couldnt even close the hood ,it stays angled up in the back about a half inch. It was one of the most awesome swaps ever.

[Kirk]

That was the Signal MK3

[tampamax]

You think the reason the back of the hood had a larger than normal gap was to let the accessive air buildup in the engine compartment a way to relieve itself more efficiently? The sup's are notorious for having poor engine compartment venting at higher speeds. And most extremely fast cars you see have a way to deal with the tendency for the compartment to act as a sail of sorts by catching all the air at high speeds. You can vent it or you can prevent it from comming into the compartment to begin with.

Please note this is just a theory of mine and might not be factual, as i do not know a lot about supra's. This is just an opinion based off of information i have gathered from other race cars in the past.

[TurboJZA70]

Good try on the theary but not correct. spacing the hood in the back is for cooling. i have the hood on my corolla spaced. lots of road racers have there hoods spaced. Bubbleheadm3 has the hood on his road race fox body mustang spaced. just for extra air flow for cooling. i dont know about the mk3 2j swap that lofer is talking about but the spacing on that car should be for the same reason. the 2j is not any bigger then a 1j or 7m so spacing to fit should not be needed.

[flubyux2]

i remember kirk losing a motor from low oil, not sheer horsepower. if the other motor was lost from knock... thats a tuning issue, not an inherent weakness of the 7M.

ive heard people laying down 400 rwhp on stock pistons. ive heard up to 813 rwhp on shot-peened stock rods. JoeyK laid down some impressive numbers on a bone stock long block and stock HG torqued to like 120 Ft/lbs or something outrageous like that.

all i gota say is, keep your motor tuned for ZERO knock and youll be just fine. and keep 10 psi of oil pressure for every 1000 rpms you go. you wont have any problems. people will tell you stories upon stories of high HP 7m's eating rod bearings. the ONLY reasons rod bearings will fail is due to lack of lubrication, poor lubricant or excessive knock... or if the engine builder is a complete dumbass and installed the bearings improperly. to make good HP, the 7M needs a metal HG and studs, new intake manifold, new exhaust manifold and bigger compressor wheel. the cams are fine and so is everything else... just keep good oil pressure and no knock. the stock oil pressure and oiling system is not sufficient for high HP on the 7mgte...at least, not for me. i want 60 psi of oil pressure at 6000 rpm.

oh, and this coming from people who have actually performed the 2JZ swap:

the tranny tunnel on the MK3 needs to be hit only in two places. right where the bell housing bolts to the gear case is where it needs extra clearance. and the shaft of the gear shift that enters the tranny needs to be shortened by ~1.25" IIRC... simple cut and weld. it may not be so simple for people who dont know how to weld though and can be a gigantic obstacle. search on Supraforums and weedout the bullshit... youll find input from people who have actually performed the swap.

[agentAndy]

get um...:D