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Project 2J
JZ(MA61/M) = JZA61

The idea is to take a 2JZ-GTE from a USDM Mk.IV Toyota Supra (93' - 98') and stuff it into the body of a Mk.II Toyota Supra (82' - 86'). This will result from ultimate combination of skill, dedication, and a dream. Read along as the dream of a child is realized.

Q: Why would you swap engines to the 2JZ-GTE?

A: After finally finding his dream car, Leon began to modify it for his racing needs. Simple modifications were installed, such as a header, header back exhaust, light weight flywheel, and a upgraded clutch. Although the need for more power was always knocking at the door. Later on a 6M-GE (JDM) was installed that packed more of a punch than the original 5M-GE engine. Needless to say the power wasn't enough to fulfill Leon's desires. Then he came upon a 2JZ-GTE at a good price. With the 2JZ-GTE Leon hopes to fulfill his desire for more power.

When swapping an engine you have to start somewhere. Starting by removing the old engine is the best place to dig in. It was sad to see such a clean 6M-GE come out, it really served it's purpose. The best part about removing this engine was that there wasn't any grease! Not having greasy hands when working on a car is the best thing ever. The 6M-GE came out smoothly without effort, as if it was giving way to the Supra's new destiny.
(click pictures to enlarge)

The beginnings of the dream, a completely bare block with only the best ahead for it. Sadly this 2JZ-GTE was abused and was in need of a complete rebuild. So with that in mind why not upgrade!

The pistons were destroyed, so the block was bored .020" over for a new set of forged JE pistons. JE pistons are close to the best for a Supra especially when combined with JE pro seal rings. To eliminate weak links in the engine the connecting rods were replaced with Eagle H-Beam rods with ARP hardware. The crank was also replaced since the last was cracked. The rotating assembly was also balanced to insure the health of the setup. The block has been treated to the "life" and will handle the power demanded from it.

With a built bottom end you can't forget about the head. This head wasn't in terrible condition but did require some attention. The head was treated to a aggressive valve cut which allows for better airflow. It also received new OEM valves, springs, and buckets (rockers). But that wasn't the last of the work. The head was also opened up with a port job and knife edging, all to help flow more and more air.

A Cometic 2.0mm MLS (multi layer steel) head gasket along with ARP U/C (undercut) head studs button up the 2JZ-GTE. With the internal modifications done to this once blown engine, it shouldn't ever fail.
(click pictures to enlarge)

When the 2JZ-GTE was purchased it didn't come with the factory harness and ECU (engine control unit). This lead to the question, go with a stock setup or upgrade? Given the modifications and the projected power the engine would make, it was decided that an upgrade was necessary. After months of searching a used Haltech E6A was found. The best part was this EMS (engine management system) had been used on a 2JZ-GTE. So the wiring harness was already finished and race proven. With this small item completed a large portion of stress was removed from the project.

To give the car the stock look the EMS had to mounted in the place of the factory ECU. So factory brackets were modified to fit the Haltech EMS in the desired position. The wiring harness was also routed through the factory location for the same reasons. Although the glove box had to be cut a little to fit the serial cable through. The overall installation of the Haltech was quite easy and satisfying.
(click pictures to enlarge)


More to come, stayed tuned!!


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