7MGE ----> 1JZ-GTE engine swap
Nza
replacement engine, a JDM 1JZ engine...
Was wondering if anyone else out there has done this swap yet.. I
haven't finished taking out the 7M quite yet, but probably will
tomorrow.. I've been reading some old threads that i googled, but
seems like a bunch of incomplete info so far..
Funny note: I took the cylinder head off before I called it a
night. Noticed that *three* pistons were at TDC.. numbers 1, 4, and
6... LOL .. number 4 struck the valves.. it was sitting a bit higher
than #1 and #6... I can rotate the engine without disturbing the
piston.. as a matter of fact, i moved the car from the spot in which
it's been sitting for a couple months under its own power! Even when
I pushed the piston down most of the way, the crank still turns
freely... can't imagine what it looks like inside yet, but will find
out tomorrow
Nick Bourne
engine wiring harness and computer for it as the 7m computer wont run
it. do i hope you got a fount cut and not just the motor.you will also
need to make new engine mounts and make sure the sump doesn't hit the
cross member. you will also need to rig up new lines for the power
steering etc. it will take a fair amount of work to do and make it safe.
you best bet would be to find a fount cross member from a JDM Supra in
that shape that came with the JZ motor. they made some just before they
brought out the last shape.
Nza
> It has been done but mostly with the 2JZ motor. you will need the full
> engine wiring harness and computer for it as the 7m computer wont run
> it. do i hope you got a fount cut and not just the motor.you will also
> need to make new engine mounts and make sure the sump doesn't hit the
> cross member. you will also need to rig up new lines for the power
> steering etc. it will take a fair amount of work to do and make it safe.
> you best bet would be to find a fount cross member from a JDM Supra in
> that shape that came with the JZ motor. they made some just before they
> brought out the last shape.
>
unfortunately, the person who bought this stuff did not get a front
clip. however, i *supposedly* have the whole harness and all the
accessories to go with it. It also has the automatic transmission
on it as well. I got a right hand drive crossmember for it (from a
soarer i guess) with the RHD steering rack still on it. Don't know
if the crossmember will be useful or not.. I wouldn't think it would
bolt directly on the 86.5..
Nza
so that the sucker *should* bolt up..
guess i'll have to order a set!
Nza
that was sent with the engine... looks like it's a perfect fit for the
86.5 supra! Woohoo! I'm taking off the front suspension and
transferring everything to the updated crossmember.. They were even
"decent" enough to leave the engine mounts on the engine.. lol
Hachiroku ハチロク
You're a whole lot more ambitious than *I* am!
My 7M-GE is running well. I think I'll leave it! ;)
Nza
Yeah well.... I had decided I wasn't going to work on anything that
this guy owned ever again... but then I need to pay my bills, and he
has to have the work done... so... here I am. LOL ... besides,
the supra has been sitting here in my yard for six months.. the motor
and trans have been sitting at least that long as well. Time to
make it get the F*** out of my yard... LOL
This 7mge in question had a blown head gasket and a cracked head when
the owner first got it.... I have an 86.5 supra that i bought for
$100, sold for $250 to this guy... got it back for free minus the
cylinder head... head has 372,000+ miles on it.. owner of this car
for whom i'm doing the work installed the cylinder head himself..
looks like he used a used head gasket. everything was blown...
LOL.. just 'coz it's copper doesn't mean you can use it over again...
especially if you rev it to god-awful rpms... i'm of the inclination
to buy a new head gasket if you have to take the head back off after
torquing it..
Unfortunately, this engine swap is mostly going to be a learning
experience for me ... I'm going to get to drive the car around for a
couple weeks to make sure everything is okay... but affter that... i
give the owner a week before the head gasket is blown, a turbo
impeller shatters, or a bearing spins... that's being extremely
generous on my part..
lol
Nza
i *am* getting paid though... or i am selling the car.. lol
either way, i make out.
Nza
Hey thanks for the handful of people that actually respond to
technical messages.
Most of the time, i just need to bounce the idears off another
individual, but a lot of the time someone comes up with a different
angle that helps immensely.
When I get done with the swap, i will post some images.. had to take
the inner fenders, belly pan, and front bumper off... i think the
intercooler mounts in holes that are already present.. woohoo! Had to
un-charge the air-conditioning as well... thank you DuPont for
lobbying to make R-12 illegal, you greedy fucks. "oh, our patent
runs out, ... by the way, *WE* say it's unsafe... " if it's so
unsafe, why was it still in this 22 year old system with a full
charge... the A/C clutch gave out before the system ever lost
pressure... meanwhile most 5 year old cars have already leaked the
R134a from the system.. DUHHHH
Fortunately, I got the driveshaft from the jap supra as well. Does
anyone know if the CSB is replaceable on this driveshaft?? I
wouldn't be surprised if it is *not* replaceable.. the one from the
supra is still good whilst the one from the jap supra is torn. The
Jap shaft is at least 1" longer than the Yank shaft.. Was hoping I
would be able to use the stock shaft, but no dice. Ex-specially with
the twin turbos.. lol... gotta have every bit of shaft possible up in
there..
Okay, thought i posted it last night, but apparently, i had too many
beers by the time I was back inside and typing on this computer
shit. Ok, the supra originally had an A340E transmission. The
1JZ has an automatic on the back of it right now.. the data plate says
it's an A342E .. before I put this piece of shit into the car and
find out it doesn't work or won't work... please, someone tell me it
will work.. LOL
I hate doing things over again..
Nza
engine swap setup.. after holding for 20 minutes on their automated
garbage, I came to find out that they no longer sell engine swaps (nor
answer the phone!) I left a message, but I'm not holding my breath
as far as a return phone call.
LOL! Can't do anything but laugh... guess the friend should have
bought from someone else.. glad I can't take the blame for that.
Nza
Well, the stupid crossmember does not work. The mounts for the
steering rack are the only thing different.... i'm not surprised..
I'll either have to cut the rack mounts off and swap them, or just get
the engine mount adapters... i think that's what i'm going to do.. i
don't trust re-welding the rack mounts.
I'm sure this engine is great, but the swapping of it sucks ass. I'm
really wishing I just let the emmer effer sit where it was sitting!
Nza
>
> --
>
> Scott in Florida
Oh yeah, definitely taking pictures.. going to be one hell of a
convoluted process... LOL..
Nza
> I would never be able to undertake what you are doing, but I am
> enjoying your posts and look forward to your pictures!
The biggest problem I've run into so far is that nobody has complete
swap information (as if nobody has ever truly completed this swap).
Also, everything I've read has lead me to believe that this was going
to be a simple swap over.. LOL!
I'l try to post some pictures later today. I'll see if frustration
can be captured with a camera! Supposedly going to be 100 degrees
this afternoon.. ugh..
Nick Bourne
This guy has done it with a 2jz, same block and engine design. heaps of
people have fooled around with the 2jz, just not many with the 1jz.
Nza
For the amount of trouble, I wish the guy *HAD* bought a 2JZ ! LOL..
Been trying to post the link to my pictures all day, but for some
reason Google Groups won't let me post an http address...
Nza
in the first place, so I tried this one.
http://s428.photobucket.com/albums/qq1/nza_420/
Check 'em out... you can see my cluttered-as-hell workspace.. LOL
Nick Bourne
The difference in between the 1jz and the 2 jz is really only internal,
it's just a under-square motor instead of being square. There would
still be as much work putting it in.
Just remember when you get it running not to wind the boost up to much.
more than 10-12psi is asking for trouble. the early motors like the one
you are using, have ceramic turbines and they are known to un-glue and
fall into the exhaust if they experance overspeed or too much boost.
Nza
> The difference in between the 1jz and the 2 jz is really only internal,
> it's just a under-square motor instead of being square. There would
> still be as much work putting it in.
>
> Just remember when you get it running not to wind the boost up to much.
> more than 10-12psi is asking for trouble. the early motors like the one
> you are using, have ceramic turbines and they are known to un-glue and
> fall into the exhaust if they experance overspeed or too much boost.
It's hard to believe that the 2JZ has a 15mm longer stroke than the
1JZ... I guess if you really think about it, it's not that much more
of a stroke... nominally, it seems like it.
I'm going to leave the boost stock on this puppy. Personally, I
wouldn't have a problem ... my motors hardly EVER see redline... if
they do, it's only for a split second in first gear... (and I
really really really don't like tickets, so I NEVER do that...
'specially in FL... you can lose your license immediately for street
racing so I have heard!)
On the other hand, the person for whom I am swapping this motor...
well he's a piece of work. He bought a stock shortblock 350 chevy
and bought some roundy-round heads and a roundy-round camshaft for the
mofo... he thinks that the engine is going to hold together running at
7000 because that's what the cam spec card says is the valve float
RPM. After 2000 miles, he had to take the heads off again and
replace all the valve springs and one valve.
I have a bad feeling that we will be looking for a 2JZ motor pretty
soon... LOL.... these ceramic turbo impellers are definitely not going
to last. This guy had 4 remote PH8A filters and like 20 extra feet
of oil lines external to the 7MG... he reckons that if you have gobs
of extry oil, you'll never be able to starve the motor of oil (and
consequently 'supposedly' never break the motor)... we won't even go
into the fallacy of that reasoning.. Talk to the #4 piston in the
7MG if you think things will never break when over-revving..
That brings to mind something I have read a little about... a
1.5JZ ... it would be cool to find a 2JZ shortblock if this head
doesn't get trashed..
Nick Bourne
sounds like he knows just enough to get himself in a whole heap of
trouble. well at least it will be spectacular when this motor does
grenade it's self. maybe we should take bets on if he kills it with to
much boost or to many revs
Nza
happens, but definitely not riding in the car..
I'm definitely placing my bets on too many revs...
"I like to hang them toyota motors out to dry"... is one of his
favorite things to say.