Natedog's 6g72 Turbo Swap

Well I'm going to share this a little early, I don't know when I'll be able to finish it, but I try to work on it a little (or drink beer and look at it) daily.

Basically Started with this....

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Bought this...
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Now working on combining the two. First issue was that the block on the DOHC had a raised portion that kept the passenger side mount from bolting down. I simply notched it out of the way.

Used Montero 3.5 water pump and pipes, custom fab on the one on the back of the heads. Note the CAS will interfere with the firewall where it is. I'd recommend doing this swap with a 93+ engine if I had to start it over again... but I have a plan.
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3.8 Galant upper intake.
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Mated to the transmission.
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Sitting in the truck...
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I'm currently sorting out using the 3000gt power steering and AC compressor. I'm also looking at a single turbo instead of the twins, purely for easier fab. I'm trying to keep the power level near stock, I'm not sure how strong the stock transmission is...

Awesome build so far, keep is updated. I want to do this swap someday so this info is much appreciated, thanks!

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I'm not getting much done right now, but taking care of some little things...

Prosport Gauges in a Montero gauge cluster housing.
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Very nice build. This swap looks very tempting to try.

I have that montero housing and the prosport gauges the idea never crossed my mind

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Got the Turbo today!

Bad ass build .^^^^^^g20. ??

I bet that sucker will Purrrrrrrrrrrrrrrr

Its a td06 20g. should be about right for the stock fuel system.

badass build man.. keep us posted. and that motor looks good in that engine bay! keep it up

I sourced a stock Evo 8 intercooler for the swap, I've been working on spinning the AC core around in it's brackets to output the AC lines into the bay. This will give me room for the intercooler, and I'll move the canister to the firewall, and make shorter lines all around while at it... I'll update when I actually do something on it!

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Been making a little progress!

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How much room is there to keep the turbos on the sides of the engine? That pic with the turbo, looks like it won't be too happy exiting to the fender(exhaust). Had that same intercooler on my truck. Had to cut the pipes off the endtanks a little short for it to fit the way I wanted it.

The problem with mounting the turbo's on the sides is space and orientation. Space could be achieved by cutting the the fender on the passenger side, but on the driver side it would get into the brake master cylinder. Also, in stock orientation the intake for the turbo's will point toward the firewall. If you change sides with them the intake would be rights, but then the stock o2 housings wont fit due to the mighty max engine mounts. Also in that forward configuration the turbo intake would interfere with the accessories.

I'm not saying it can't be done. Old Colt over on the 6g72rwd forum has a montero he has been slowly working on, he's going to use the stock turbo's. However the Montero has different spaces in the engine bay. He machined an adapter to flip the manifold over on one side.

For myself I felt it would be easier to use one turbo. My fab guy has thanked me.

This is going to be so badass, love the build. Keep the pics coming.

What about flipping the turbos? Making them top mounted? Maybe ony cuting the fenders above the tire wells would be required. Just a thought. And maybe speed density/blow through maf makes intake routing easier? Made mine a lot easier. Lol.

The driver side one would be top mount using the stock manifolds, if you flip sides it puts the driver side turbo into the accessories. Again, just because I'm doing it this way doesn't mean it won't work the other, but I couldn't figure out a good way. I opted for less piping, not having to run the intakes of the turbo's together, or the compressor outlets together before the inter cooler.

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This will be AWESOME! Torque off boost, below boost, and all hellpower on boost everywhere else!! WOW!!

I definitely require more updates on this. What are you doing for motor mounts/transmission mounting?
Coming from the 3000GT community, I HAVE to ask...
You still got that parts car? :)

Quote:

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Originally Posted by Blue91SL

I definitely require more updates on this. What are you doing for motor mounts/transmission mounting?
Coming from the 3000GT community, I HAVE to ask...
You still got that parts car? :)

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The engine mounts and trans are the stock v6 truck parts. I am modifying the pasenger site frame mount to clear the AC. My fab guy is almost done with the turbo set up. I will get some more pictures soon.

Parts car is long gone.

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Working on the new CAS drive.

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I don't know anything about the 6gs, just wondering why the stock cas setup won't work?

I'm guessing clearance issue with firewall.

Yup, I mentioned it way back in my first post. If the engine were newer it would have the crank and cam sensor's but since its the first generation engine it has the CAS on the cam shaft. Little re-engineering should fix it on my part (hopefully). If I were to do it over I'd have went with the later model engine. Too late now!

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Full Mandrel bennt 3 inch exhaust. Stock Appearing.

I had a custom exhaust pipe come out and go over the frame rail and exit straight down, in front of the right rear tire. Hassled too much times by the local inspectors every year. Smart move on the "stock appearing" from the get go.

We don't have inspections here, can't tell you the last time I owned a car that would pass a an emissions test! :)

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Little update on the intake!

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Got it back home... hope to get back on it soon!

Good lord that thing looks so sexy, I want to do this swap one day!! Keep the updates coming, love seeing pics of this thing.

Thank you, hearing other people are interested keeps me going. It still has a lot to do, but its getting there.

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Parts are back from coating.

Wow, looks good.

Brad was talking about feet getting into parts-pictures. In this one, it appears to be a cat. :)

Wow this project is awesome! I love it!!!

https://fbcdn-sphotos-b-a.akamaihd.n...35ea4046733962

That is some trick plumbing for the turbo set up Nate! A bit of heat shielding on the wheel well and you're home and hosed. Can you post up a full engine bay pic for us to look at please?:pray:

Thanks, I'll get some more pictures in the next few days. Trying to figure out the mounting and such for all the AC before I start wiring it!

Keep it coming man....lookin good :shock:

Nothing like a murdered out engine bay. :grin:

This thing is going to be soooo badass!! What all do you have left toi do?

There is lots of little things left to do, get all the AC plumbed / replaced. Adapt multiple lines for coolant, oil, etc. I've still got to get the fuel system swapped over to the car pump, and mod the lines to the fuel rail. As well as the heater hoses, which I plan to pull the heater core and modify it for how I want things. Did I mention, I haven't even started wiring...

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Wow, Nate things are rolling great. The tolerances between parts on your build are so tight looking in them photos. I am wondering whats going to rattle together when you lite that truck up the first time. That G72 looks so nice in that bay also. Perfect build for that truck. Nice to see you progressing along and keeping us all posted with this. Very impressive work...:) You can no longer go to the Autoparts store for those particular parts since you damn well made everything custom.

Thank you, I can't take all the credit though, my fab guy is very good. I just give him an idea and am flexible with how it works out. I'm slowly making progress, just been a little short on cash so not much happening right now. Hoping to make some more progress in the next few weeks.

Just wanted to let you guys know that I haven't forgotten about this project. I've just been covered up with other things. I am currently swapping the engine in my Mirage, and I lost my best friend about 2 months ago... I've been trying to sort through all his Mitsu stuff and help his wife with it. I'll get back to this one soon. Just more important things have taken over.

Nate.. You OK?

Errol

Hey Errol, I'm doing ok buddy. Just still have a bunch of stuff still on my plate. Wanting to get back to this one, but I just rebuilt my friends car (the one who passed). Also got my grandpa's truck to get running. If you've still got my number give me a call sometime. I could pick your brain on a couple things...

I've gone through a 'few' phones since then.
PM me yer info and we'll talk. Glad to help if I can remember that is..
Still got most all of the colt left. Just TOO BUSY, working 10hr shifts doesn't
lend itself for much on the side.

I'd love to see your build in person!
I'm stuck on my 88 1ton max believing that a later 318 roller motor would just "BOLT IN" like I've read.
BUT NOOOOOO! (starter on D/S messes EVERYTHING UP)

So, it's a BIG wasp hotel right now.

Considering selling/trading this one on to someone who has the time to finish it. I dunno when I'll be able to get back on it. So if anyone is interested shoot me a PM. Other wise, it will be stuck into the corner of the garage till I can clear out some other projects and find some time...

Can you update the pictures? They're MIA.

Not all are MIA, I'll update a few more with what I can find.

I must be loosing my mind, because i cant find the edit post function. Here are a bunch of random pictures. I doubt anyone will want to pay what I'll have to have for it (even at half the cost im into it), but figured I'd share.

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You sure you want to give up on this man? You got all of the really hard stuff done, and you did it expertly. Now it's just the dozen tiny things. Don't quit on this.

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Originally Posted by Natedog

I must be loosing my mind, because i cant find the edit post function. Here are a bunch of random pictures. I doubt anyone will want to pay what I'll have to have for it (even at half the cost im into it), but figured I'd share.

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The edit button is a donator perk. We had problems in the past with abuse.
Everyone that is into these trucks becomes one at some point in there life.
At that point your stuck hopelessly in the funnel.

Nobody gets into this game to make a profit out of building a project vehicle - it's about the process. The numbers on building a modded ride goes something like this - buy the truck etc, work out how much it's 'going' to cost, then double it. That should put you in the ball park for an overall budget :shakehead: Sometimes you get the ultimate budget find and it saves you a heap of cash but it doesn't happen often enough... hopefully someone sees the potential in your work and takes it on from where you've had to leave it.

Are you married? My wife understands that when I say I love my truck, It's like saying I love my dog. :dog:


Hang in there!

Dang Nate. You have really put a dent in this. Looks like most of its done and you have some electrical to do. Why not finish? BTW I need to thank your for confirming that the DOHC will fit with the brake master cylinder. I will be doing a similar build, but with some variations. Also nice work on the CAS, as there is no way to mount that against the firewall. I probably would have sourced some 2nd gen heads with all that work. LOL.

PS I just picked up a Montero SR, so I think you know where I am headed with that.

Thanks guys, I'm just tired of not having the time to work on it. I have many other projects and this one is lowest on the list right now. If no one makes a decent offer it can sit here. I just hate to see it take up room in my shop for the next year or so till I can actually do something with it.

Nate it took me 12 years to put mine back together. I built or restored 9 other vehicles in that time for customers but for the last 3 years I've been driving the wheels off mine. Just put it off to the side and when you have an hour or 2 do something with it and you'll get it done.

If all that is holding you back is time then put it aside and it will wait for you. A little bite out of it here and there and it will come together. But if someone comes along and makes a good offer, well it might be time to plan the next project. :)

Nate, update your thread on 3si too. Might get some interest. I bumped it for you.

Just wanted to let you guys know that this thing sold, and was finished. It now resides in Illinois, and spends its days as a Daily driver for the Twins at AMS performance. Maybe they will chime in with an update.

Darn, want to see this thing finished up. Hopefully they join the forum.

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Originally Posted by DroppedMitsu

Darn, want to see this thing finished up. Hopefully they join the forum.

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https://www.facebook.com/nathan.smit...3113819430990/

Maybe that will work...

Broken sir, did connect

Interested in how this turned out. I finished my 6g75 MIVEC build as well.

...?? maybe it's just me, but can't see ANY PICS for some reason..

Sorry that it ended up that way. All too familiar for me also. Sold my '66 New Yorker 2dr to a guy and BAM.. He did all this stuff to it within a couple months. And that BMW vert was sold to another bud and he's got a tunnel-ram'd 350/th350 with 3.91 LSD rear!

Seems like my projects don't get done by me, just the peeps I sell to..
E

I think the vast majority of the pics were re-sourced from failbook. Might need a FB account or something...