Altezza engine swap question

[Monsterbishi]

Quick question regarding gearboxes/bellhousings.

Have a friend with a 1G-FE 6spd manual IS200, considering swapping in a 2JZ-GE, I'm not familiar with these blocks, how much grief is there to be had as far as making the original gearbox work?

[Adamal]

I'd say the bellhousing would be different for starters.
As for the strength of the box... Well not sure about that either, but the 2JZ would have a considerable amount more torque, so I'd be weary of that.

[rollaholic]

yep the bell defintely different, i dont know for sure but im guessing it has a W5* gearbox, in which case you can get bellhousings and flywheels etc to suit your conversion from A1 turbos. one of the guys there comes on here sometimes, his username is nite-b or something like that. if you are lucky it has an R154, dunno if they ever came behind 1Gs though. post up what the build plate says!

the W boxes are pretty tough, and should be ok with an NA 2JZ at least.

evil-si has done alot of work on a 2JZGTE altezza im pretty sure, there might even be a project or discussion thread about it if you search. probably some helpful tips in that respect.

[edwagon]

You can use the original gearbox, but you'll need a jz bellhousing and clutch etc, which you can get from niteb on this forum (they're very rare).

AFAIK Altezzas are fearsomely complex with the ecu wiring and many of the car's electrical systems will pack a sad if they don;t get the right signals from the engine ecu

Since there's plenty of mucking around with the gearbox anyway (and the pedals are easy enough to get), maybe it'd be better off starting with a 2jz altezza and doing a manual conversion?

[strx7]

Quick question regarding gearboxes/bellhousings.

Have a friend with a 1G-FE 6spd manual IS200, considering swapping in a 2JZ-GE, I'm not familiar with these blocks, how much grief is there to be had as far as making the original gearbox work?

Despite what some of the above people are trying to tell you, you cannot get a bell housing to fit the 6 speed. it is NOT a W5# gearbox it is a J160 which has the bell housing as part of the main casing. this gearbox never came out behind a #JZ anything. You could either a) convert to 5 speed using a remote shift W5# type gearbox, b) cut and shunt the bell housing on the J160 gearbox and put a JZ engine pattern mounting face on it, and HOPE it handles the torque of the 2JZ.

[matt dunn]

Despite what some of the above people are trying to tell you, you cannot get a bell housing to fit the 6 speed. it is NOT a W5# gearbox it is a J160 which has the bell housing as part of the main casing. this gearbox never came out behind a #JZ anything. You could either a) convert to 5 speed using a remote shift W5# type gearbox, b) cut and shunt the bell housing on the J160 gearbox and put a JZ engine pattern mounting face on it, and HOPE it handles the torque of the 2JZ.

Correct I think.

From what I understood the 6 speeds do not have removeable bellhousings, and even if they did, I dont think they can take much more than what you can get from a NA Altezza motor.

Other option not above is an R154 conversion.

Matt

[xnickx]

Why go through all the trouble of an engine conversion with just a 2JZGE? Why not GTE?

Altezza Gita (JCE10 or JCE15) engine mounts will work as they came factory with the 2JZGE or even the IS300 (JCE10R).

The USDM IS300s use a W58 strapped on the back, if your lucky enough to find a JZA80 non turbo W58 remote shift that is.

The J160 6MT does have a removable bellhousing but you will need a custom one made up to suit the 2JZ (refer pic below)

I had researched this conversion deeply in the past before deciding to go 3SGE turbo instead, will try to answer any questions you got.

[matt dunn]

The J160 6MT does have a removable bellhousing but you will need a custom one made up to suit the 2JZ (refer pic below)

Nice picture's but wrong.


the bellhousing does come off, your right, but it is also 1/2 the gearbox.

Take the bellhousing off and there are all the teeth and shafts falling out.

See in the second pic, showing the mid section of the box, there is no support for the shafts etc, so cannot use a normal type bellhousing.

[ROBODISCO_20v]

Could always get a V160 box to solve any problems

Found an interesting build thread on 1GFE -> 2JZGTE swap here http://www.lexusownersclub.co.uk/forum/ ... 688-0.html

[strx7]

I had researched this conversion deeply in the past before deciding to go 3SGE turbo instead, will try to answer any questions you got.

just as well you didn't try that conversion as with your "infomation" you'd have come horribley unstuck.

the altezza shares the J160 gearbox with the S15 Silvia, MX5 and RX8, I was looking at doing a cut and weld job on the bellhousing/front casing section to put one behind a 2jzge, dependiing on your driving style it may or maynot handle it.