I Bleed TRD
Join Date: Nov 2004
Location: Santa Maria, CA
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I was looking up the 2jz on wikipedia and it also had this on the 1jz page:
The 1.5JZ is created by combining a 1JZ with a 2JZ bottom end. the 2JZ bottom end will simply bolt on.
1JZ = 2.5L Inline 6 (86.0mm bore x 71.5mm stroke)
2JZ = 3.0L Inline 6 (86.0mm bore x 86.0mm stroke)
Using a 2JZ bottom end with the 1JZ everything else allows you an extra 500cc of displacement.
Reasons for this conversion is a matter of opinion and discussion, some claim a 1JZ head flows better than a 2JZ, however this is unfounded as of yet. The most likely reason would be if the owner of a worked 1JZ motor blew the bottom end and were to replace it with the 2JZ bottom to gain 500cc of displacement, as the heads are intercompatible.
Is that true? I know some engines are compatible with other. on the Tercel, you can take the 1.3L turbo 4e-fte and swap on the 5e-fe/fhe heads onto it and have yourself a 1.5L turbo engine.
I know a lot about the Tercels...but i'm trying to learn as much as possible about the Supra. Anyone care to shed some light on this?
1993 MR2 undergoing Gen 3 3sgte swap