1MZ-FE Boosted?

Jay-Spec1 said:

First I read the 1MZ-FE is a better fit than the 3S-GTE and its lighter, Can I please get a second opinion on that,I meen that cant be true is it?

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Yes, the 1mz is aluminum alloy block, the 3sgte is cast iron, plus the weight of the turbo gear

Second How much can a stock 1MZ-FE handle under boost.

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Ive had some conversations w/ many of the guys on the boards. Seems that most like to recommend no more than the high-altitude pully on the TRD S/c (5.5psi) The 1mz's stock pistons arn't built for heat. They would be the first thing to go in a high boost situation.

And last but not least is this swap cheapter than a 3S-GTE, I now have a 5S-FE with a Auto tranny (swapping tranny also) 91

Thanks MROC

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NO! 1MZ swaps, properly done with attention to detail and reliability of install, are not cheap. Especially when you include labor. 100+ hours of labor seems to be the average. And thats not including if you need to fix anything that you already did.




Research my man!, Answers to all these questions have been debated many times. Although, most of the older 1mz swap info is in the dead realms of the Hybrid MKII forum

Jay-Spec1 said:

And last but not lease is this swap cheapter than a 3S-GTE,

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if you have to ask.. no its not cheaper. if you didnt have to ask, yes it may be cheaper

it doesnt fit better than a 3sgte

doesnt take boost to well... like dave said

i of course it fits well, but as a swap u have to fab a 1 or 2 (cant remember) motor mounts... thats what im talking about fitting well

Anything you swap, aside from the options available in stock form, is going to require some custom fabrication.

For the 1mz, its the passenger side mount.

It is actually far easier to work on the 1MZ MR2 than it is a Turbo MR2.

Now, that is a blanket statement. It depends on what you are doing.

In general however, there is more engine bay room with a V6 than there is with a turbo motor. Until we find a really good intercooled supercharger setup, only the TRD SC units will work, no IC, so all of that piping is left out of the engine bay.

mikeswickednick said:

it doesnt fit better than a 3sgte

doesnt take boost to well... like dave said

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I've got a 91 Turbo in my garage that begs to differ! :blockhead

the 1mz fits better than the 3sgte. IF I drop a wrench on the crossmember, I can reach down behind the 1mz to get it without scraping my arm up.

I can do a timing belt on a 1mz in under 2 hours and not lose skin. 3sgte is generally in the relm of 4-6 hours plus another 1-2 hours in the ER tending to my wounds.

Once the engine is in, the 1mz fits better. However, it does require some basic fabrication to make it fit. Whereas the 3sgte parts are available from many sources.

-B

Brad Bedell said:

the 1mz fits better than the 3sgte. IF I drop a wrench on the crossmember, I can reach down behind the 1mz to get it without scraping my arm up.

I can do a timing belt on a 1mz in under 2 hours and not lose skin. 3sgte is generally in the relm of 4-6 hours plus another 1-2 hours in the ER tending to my wounds.

Once the engine is in, the 1mz fits better. However, it does require some basic fabrication to make it fit. Whereas the 3sgte parts are available from many sources.

-B

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well like what kind of fab. are we talking, just the engine mount on the passager side, or is there more. And if its the engine mount what do i have to do to it?

second can the 1mzfe bolt to my stock N/A automatic tranny with no problems. I was just going to take the es300 tranny but brackets and such may be different.

Thanks MR2OC

Brad Bedell said:

well, technically the MR2 auto will bolt up. I wouldn't do it. YOu'll be yanking the stock auto in about 3 weeks after the V6 eats it up. Use the ES tranny, you'll be happier in the long run.

As far as fab work:
Motor mount (mounts if you're doing an auto)
axle solution if you're doing an auto, probably pretty simple, but something will be *different*
water pipes
air intake
exhaust (including manifolds)
AC hoses
fuel lines
Automatic shift cable, stocker might work, but noone knows.

Anyhow, most of this has been covered in the top 4-5 posts in this section.

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Mmmkk cool will i need custom brackects for the es tranny. and with the mounts do i need like to get some welded or something?

i had ask the question which is lighter... the 1mz or the 3sge.
you guys are saying the 1mz is lighter?

can you guys tell me how much each weigh

This has been asked many times, I suggest you search for it in this forum or the Hybrids forum

I'll put in my two cents though. Since you are replacing an iron block with an aluminum block and removing all the turbo junk, it's about 100 lbs. lighter than a Turbo MR2.

I'll chime in with my .02 cents too: my 1MZ is 401lbs with everything on it. The short block also moves around easier than my 5S block!

Now why would you keep the automatic transmission if you were also considering the 3SGTE? Either way you go, 3SGTE or 1MZ, you need to get rid of the automatic, period! Both engines will eat that transmission within a matter of weeks.

My engine came with the alternator hanging and a flywheel mounted, strapped to a pallet.

The pallet had "431 lbs." written on it by the shipper or the carrier. So, knock off about 30 lbs. for a pallet and do the math.

^^ Has anyone ever gotten a 3s-g(t)e in a pallet? If so, how much did it weigh?

you may want to ask that question in the hybrid forums... That would be where ppl are doing gen III swaps and such

I know that actually using the search function is just way more difficult than posting the same question for the 4096th time, so I'll just answer this AGAIN for Brad.

Brad's supercharged 1MZ car weighed in at about 100 lbs. less than a Turbo MR2.

Excellent. One more thread to show up on the search results.