1JZ in RT142 Corona

[Screamn_Sleeka]

pisso: Im sure ull be able to find someone to swap ur 1JZ for a 1G, 1G-GTE supra's and soarer owners are always pulling them out for JZ power.

chuckster: As listed in norbies diff database, RT142's have an F series IRS, its the exact same as RA65 and MA61. the RT142 is like the last corona (not technically, but you know what i mean).

[wilbo666]

que? i thought these were borg warner diffs... must go search norbie's diff database...

IRS RT142 is F series...and yes it is the same casing as MA61 (not the same ratios or LSD however).

There is also a live axle RT142 variant. Be careful with sweeping generalizations!

Cheers
Wilbo

[Screamn_Sleeka]

Be careful with sweeping generalizations!

And AmericaniZations!

[wilbo666]

And AmericaniZations!

Meh I can't speel (mis-spelt for effect ), so I use a spell checker, as a courtesy to the poor people that have to read my dribble ...

My points still stand however (care to rebut them as opposed to commenting on my spellcheckers language? )

Cheers
Wilbo

[wilbo666]

chuckster: As listed in norbies diff database, RT142's have an F series IRS, its the exact same as RA65 and MA61. the RT142 is like the last corona (not technically, but you know what i mean).

This is what I disagree with

Even the IRS ones are not 'exactly' the same. (not to mention the fact that there are IRS and live axle RT142s....)

IRS Manual RT142s have a 3.58 ratio, manual MA61s have a 3.909 ratio and a clutch pack LSD.
IRS Auto RT142s have a 3.727 ratio, auto MA61s have a 4.1 ratio and a clutch pack LSD.

Exactly the same my arse (try and tell the poor MA61 driver that just lost his LSD that they are exactly the same

Cheers
Wilbo

[pisso001]

Thanks for all that.. Will be helpful.. Ive just aquired a 600 x 300 intercooler which will be handy.

So what do i do? 1J or try swap for a 1G??? 1J has more poweeerrrr but will it be much more difficult than a 1G?

Thanks

[Adash=P]

The 1JZ is far more superior to the 1G but as mentioned before, it is longer and fitting it won't be as simple. Work out how much more room you'll need and decide if its worth the headaches.

[pisso001]

Why is 1J more superior? Is it just more power or are there other pluses... 1G would be lighter and therefore make the car more balanced than having a 1J... leaning towards 1G only because its easier and probably work out a little cheaper...

[Adash=P]

Power producing wise.

[Screamn_Sleeka]

Sorry Wilbo, i wasnt being technical, jsut telling pisso what he needs to know, and that is, if you see a "fully sick LSD to suit a MA61, it will also suit the RT141. I said the diff was exactly the same, when what i mean is that everything EXCEPT the actually diff its self is the same

Pisso, i think this is a far idea of what you a looking at:
(its all been said in this thread, but ill organise it)

1JZ: 280hp* - Will need fabricated mounts, JZ wiring is more difficult. W55 will work with the bellhousing and clutch from n/a 1jz or 2j/z JZX80. Will probably run low 13's.**

1G: 200hp* - Mounts need to be modified (nothing really if you can weld), wiring is a little more simple. W55 will work with normal 1G manual setup (1G-GE's [non turbo's] came with W55's). Will probably run low 14's.**

*Stock power, both make a lot more with little work.
**Too many variables, but you get the idea.

[thechuckster]

chuckster: As listed in norbies diff database, RT142's have an F series IRS, its the exact same as RA65 and MA61. the RT142 is like the last corona (not technically, but you know what i mean).

ah... i missed the earlier IRS reference

i spents several hours on a previous saturday looking at a live axle RT142 (while i removed its brakes) and it was defiantely not an F-series diff centre ;-)

[sam-131]

i've seen a 1jz in a xa6x down here in vic and i must say it was baby making beautiful from what i seen you need to cut about 1/2 to 3/4 of a inch out of the front rad surport to make it clear but i've all so seen 1jz's fit with out any cuting

if i dont wander off to the mazda camp i would be defently be looking at a crazy arsed 2jz set up in mine in the next few months or so

the only problem i can fo see is long hours with the hammer bashing the firewall and sump arrangments

[Pube]

1G: 200hp* - Mounts need to be modified (nothing really if you can weld), wiring is a little more simple. W55 will work with normal 1G manual setup (1G-GE's [non turbo's] came with W55's). Will probably run low 14's.**

I ran a 13.1 in my 1G powered RT142. Stock engine, truetrac IRS and 15psi boost

[Pure_In_Sanity]

I'd be going with a 1G. Its been done many times, you know it will fit, and its still going to be quick!
1J is longer and you'll run into space issues with cooling fans and what not.
Bellhousing will be cheaper for a 1G, mounts will be easier to setup and you might end up getting some cash back if you swap your 1J. Depends on the condition i guess.
It can be done, but you'll spend a couple extra grand getting there.
Food for thought??

Cheers
-Phil

[Merudo]

Thanks for all that.. Will be helpful.. Ive just aquired a 600 x 300 intercooler which will be handy.

So what do i do? 1J or try swap for a 1G??? 1J has more poweeerrrr but will it be much more difficult than a 1G?

Thanks

I'll swap you my 1G with clutch, loom, ecu, all accessories for normal operation of the engine AND the W58 for your loomless 1JZ-GTE if you like...

But only if it's a rear-sump 1J

I'm in NSW, too