Question about installing a turbo on 1MZ-FE - Toyota Nation Forum : Toyota Car and Truck Forums

Jay · 08-14-2002, 08:29 PM

My question is where would you put the tubo since 3 exhaust pipes come from the front and the other from the back... and they meet at the bottom.. So would you put the turbo on the bottom of the engine???

Jzs147-RR · 08-14-2002, 10:13 PM

That would be bad since it would be too low and the piping should be closer then that to the engine.

Jay · 08-14-2002, 11:02 PM

So how and where would you locate the turbo if I decide to get one?

***Ratko*** · 08-14-2002, 11:27 PM

the closer to the block the better... i have looked at turboing my 1MZ aswell and the closer to the block the turbo is, the better. If you are trying for a single turbo setup which i think you are, you can pretty much choose which bank, front or back, you wish to run the turbo off of. The back seems to have more space but seems like a biatch if you want to service the turbo at any time. If the battery is relocated to the trunk and something is done with the cruise control unit, then i think its very possible to run it from the front exhaust bank.

you drive a solara right? if you do, then you dont have a return fuel line, which complicates fuel tuning. On my 94 IMZ-FE, we have a return fuel line so that an FMU can easily be setup should boost be used.

latez.

DrtySthV6SE · 08-14-2002, 11:42 PM

you could twin-turbo it

right??

My dad has a single turbo on a V8 engine in his shop (maybe ill get a pic)
i have no idea how he did that. He used to work for a turbocharger company, he's a genius when it comes to engines and sh*t

88 LE · 08-15-2002, 05:39 AM

Quote:

Originally Posted by Ratko

If you are trying for a single turbo setup which i think you are, you can pretty much choose which bank, front or back, you wish to run the turbo off of.

Not a good idea.

If your gunna run a single turbo I would join the 2 banks of cylinders together (custom manifold) then place the turbo onto the end of it. You'll have the exhaust gases from 6 cylinders instead of just 3 to spool the turbo.

The other option is twinturbo in which case you would use a turbo on each bank of cylinders.

Jay · 08-15-2002, 11:08 AM

Yeah, I don't think using just 3 exhaust is a good idea.. That will get me less pressure than 4 cylinder engines...

So it seems as though it's almost impossible to hook up a turbo on 1MZ...

Unless I come up with some crazy looking exhaust manifold that ties all 6 exhaust!! That sucks!!

4A-FTE · 08-15-2002, 11:35 AM

What has to be done is make the manifold to run around from the 3 cylinders behind and join up to the 3 in the front, then together, they join to the turbo. make sure to get a big turbo cuase if you have a small one, it will max out right away and the car will be way under it`s potential, plus your wastegate will go on ya becuase it`s under a lot of pressure all the time. In your case, bigger is better!

Jay · 08-15-2002, 11:59 AM

On ebay, I've seen Garett T3, T4, Eclipse GTX turbo, Thunderbird turbo, and some ITI turbo chargers.. Which one in your opinion is most suitable for 1-MZ application?

Also, seems like removing the battery to the trunk is the only option to make some space...

I am not quite sure what I would do with the cruise control actuator...
Seems like the cables are fitted to the size, so if I relocated the cruise control actuator, it will definitely mess up the throttle position...

Thanks.

***Ratko*** · 08-15-2002, 12:15 PM

i can see that being possible.

running the rear bank and front back to the right side of the engine right over the tranny, very possible.... that way the turbo would be facing a nice way so that the downpipe wont be too hard to fabricate and the intake piping is really close (if you choose not to use an intercooler), but even still, if you relocate the battery, an A2W intercooler could fit there also.

good project.

Jay · 08-15-2002, 12:21 PM

Ratko,

Since you thought about this longer than I have, do you have any drawings of the piping?? Or can you come up with one?

If I start this project, I am definitely putting an intercooler... I wouldn't want to risk detonations ruining my engine...

Also, where can I find a good resource about FMU?
Thanks

***Ratko*** · 08-15-2002, 01:01 PM

check out the venom website and look at their FMUs. they are basically fuel pressure regulators that vary with boost.

http://www.venom-performance.com/

4A-FTE · 08-15-2002, 04:53 PM

http://www.vortechsuperchargers.com/accessories/fuel.html

This is the unit that I use and most of the cars custom made use. I run an 8:1 disk which means for every pound of boost the manifold reads, it applies 8 pounds more of fuel. So i run 10 psi that mean, at 10 lbs, I have 80 lbs of fuel in my rail. Simple yet effective.

You can also run an Apexi AFC after to really fine tune your curve after.

***Ratko*** · 08-15-2002, 06:27 PM

I heard that the HKS S-AFR does the same as the Apexi S-AFC but has way more features.

One i found interesting was that under extremely lean or extremely rich conditions (such as if a BOV vents to atmosphere and ECU doesnt compensate), it will compensate for the ECU and prevent staggering in those conditions... pretty cool.

latez.

4A-FTE · 08-15-2002, 10:15 PM

Quote:

Originally Posted by Ratko

I heard that the HKS S-AFR does the same as the Apexi S-AFC but has way more features.

One i found interesting was that under extremely lean or extremely rich conditions (such as if a BOV vents to atmosphere and ECU doesnt compensate), it will compensate for the ECU and prevent staggering in those conditions... pretty cool.

latez.

Very true, the DSM boys know all about that proble,, sometimes they will rich right out and stall the car between shift, thats whta you et for wanting to hear it instead off returning it.