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Bundera 1JZ Engine Conversion Finished - With Pics

Posted: Mon Feb 09, 2004 12:09 pm
by Skip
Perhaps one of the more interesting conversions undertaken. I originally imported the LJ71G from Japan in August last year through prestige motorsport planning to fit a 1UZFE. I had problems getting a 1UZ here in Perth, and comparing dyno charts of the two engines I found that the 1JZ was a better proposition as it has a fatter torque curve than the 1UZ from 2000 rpm onwards.

The LJ71G comes with a 2LT (2.4 L turbo diesel CT20 i think), R151f 5 speed, landcruiser transfercase and g series diffs front and rear, the front being a hi-pinion which is different from the hilux front low-pinion.

Having an R151f I knew that the box would be strong enough to cope with the motor and being nearly identical to R154 i could use a R154 bellhousing. Little to my knowledge the R150 and R151 boxes have an input shaft length of 160mm as opposed to the R154's 190mm, meaning an R154 bellhousing would not work. Luckily Dellow make a 30mm shorter R154 bellhousing for this specific reason.

The only other problem was the original soarer sump fouling the front diff pinion flange. This was fixed quite easily be just making a new lower section out of aluminium. I also had to run a thermofan due to space restrictions and the fact that the 1JZ fan being offset would hit the chassis rail.

Just waiting to get a final tune on the haltech now, cant wait till it's all done, will be a beast offroad and on road :D

Pics here http://oz-enet.com.au/~peewee/Skip/

Re: Bundera 1JZ Engine Conversion Finished - With Pics

Posted: Mon Feb 09, 2004 3:19 pm
by cbr
Skip wrote:Perhaps one of the more interesting conversions undertaken. I originally imported the LJ71G from Japan in August last year through prestige motorsport planning to fit a 1UZFE. I had problems getting a 1UZ here in Perth, and comparing dyno charts of the two engines I found that the 1JZ was a better proposition as it has a fatter torque curve than the 1UZ from 2000 rpm onwards.

The LJ71G comes with a 2LT (2.4 L turbo diesel CT20 i think), R151f 5 speed, landcruiser transfercase and g series diffs front and rear, the front being a hi-pinion which is different from the hilux front low-pinion.

Having an R151f I knew that the box would be strong enough to cope with the motor and being nearly identical to R154 i could use a R154 bellhousing. Little to my knowledge the R150 and R151 boxes have an input shaft length of 160mm as opposed to the R154's 190mm, meaning an R154 bellhousing would not work. Luckily Dellow make a 30mm shorter R154 bellhousing for this specific reason.

The only other problem was the original soarer sump fouling the front diff pinion flange. This was fixed quite easily be just making a new lower section out of aluminium. I also had to run a thermofan due to space restrictions and the fact that the 1JZ fan being offset would hit the chassis rail.

Just waiting to get a final tune on the haltech now, cant wait till it's all done, will be a beast offroad and on road :D

Pics here http://oz-enet.com.au/~peewee/Skip/


looks good. Have you got it licenced yet ?? Any problems??

Chris.

Posted: Mon Feb 09, 2004 5:06 pm
by Skip
Thanks mate.

No not licensed yet, have to get it tuned and running properly first. Ive had a few electrical issues, but nothing else.

Posted: Mon Feb 09, 2004 9:07 pm
by cbr
Skip wrote:Thanks mate.

No not licensed yet, have to get it tuned and running properly first. Ive had a few electrical issues, but nothing else.


Do you need to get it engineered or are you just going straight over the pits ???

Chris.

Posted: Mon Feb 09, 2004 11:58 pm
by ozrunner
Skip

Looks good, well done.

JD

Posted: Tue Feb 10, 2004 9:29 am
by Skip
cbr wrote:
Skip wrote:Thanks mate.

No not licensed yet, have to get it tuned and running properly first. Ive had a few electrical issues, but nothing else.


Do you need to get it engineered or are you just going straight over the pits ???

Chris.


Im pretty sure I will have to get it engineered. I have the application for vehicle modification, but im yet to fill it all out and send it away. I think you have to wait for the department to review the application then advise.

Posted: Tue Feb 10, 2004 9:53 pm
by Bluey
looking good skip. real good :D