ATTN: 1MZ / 3MZ Hybrids!

[conor42]

From prior research, reading and searching, I've determined that:

- 1MZFE non-vvti heads bolt to 3MZFE short blocks.
- 3MZFE has VVTI oil ports that need to be blocked.
- The 3MZ has no EGR, as it is a VVTi engine.
- California smog requires that we have EGR ports.
- I like EGR anyway, since it reduces NOx emissions.

So my big issue is... do the VVTI 1MZ and 3MZ blocks still have the EGR junction block on the back side of the block? Obviously it wouldn't be drilled or tapped, but is it still there? I'm hoping it is, since the 3MZ is just a punched-out 1MZ..

And if that turns out to not be feasible, has anyone actually bored out a 1MZ block and installed 3MZ pistons?

Thanks in adavnce, guys!

[conor42]

I don't know why I didn't think of this earlier.. I can just fabricate an EGR pipe that doesn't go into a block/cooler junction. And if it needs to be cooled down, I can just build in a heat sink too. No big deal... >_<

Don't mind me, folks! haha..

[Eye8Pussies]

or...you can just skip the egr altogether...

[Camry Racing]

or...you can just skip the egr altogether...

that the best idea

[conor42]

California smog requires that we have EGR ports.
- I like EGR anyway, since it reduces NOx emissions.

I really don't mind. 1-2 hp (maybe?) from disabling the EGR isn't worth it for me. Good smog numbers are more important.

[trd4life]

the 3mz block has no egr cooler built in to it at all like the 1mz block. When i originally built my hybrid, i could have rigged up a pipe so the egr still functioned (with no cooler) but decided to block everything off instead.

[Gregtrd]

the 3mz block has no egr cooler built in to it at all like the 1mz block. When i originally built my hybrid, i could have rigged up a pipe so the egr still functioned (with no cooler) but decided to block everything off instead.

.
.
Same here on the egr block off.