Author Topic: 81 pickup 5vz swap  (Read 640 times)

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spuds015

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81 pickup 5vz swap
« on: Sep 02, 2018, 06:19:30 PM »
I figure I'll start a new build thread since my last one really didn't have anything useful in it.

The truck: 1981 pickup 4x4 longed 22r.

Mods: Dual cases with 2.28 gears, RUF, 91 f150 2wd springs, Weber 32/36, 5.29's with welded rear open front, steering arm braces, high steer, 35's.

Pretty much a basic first gen build at this point. I moved to Texas from California and pulled all the smog junk off and slapped a Weber on it. Now moving back to California I need it to pass smog. After searching for a 3rz I found a 1996 T100 2wd with a 3.4l 5vzfe that had been wrecked in the rear end. I did some searching and can't really find any complete information on the swap into a first gen or useful information on the engine change process. My plan is to do the swap and have the smog referee sign off on it and documenting everything I can.

Here is everything as it sits in September 2018.

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #1 on: Sep 02, 2018, 06:30:12 PM »
I spoke with the referee over the phone and got some good info I'd like to pass on. The guy I talked to wasn't some desk jockey and was a little familiar with this swap. There are 2 weight classes for light duty pickups and this T100 qualified as an acceptable swap. Also, if you are doing this process, the inspecting referee will want a printout from a dealership indicating 1. The ECU is the correct one for that engine 2. The map is the factory map for the engine and not some flashed or tuned map. Make sure to leave the ECU label accessible to the inspector so they can verify the information. Also for the crossover, they have gone back and forth about allowing modifications to switch it from side to side. Currently (as of September 2018) it is acceptable to swap it to a driver side crossover as long as it is pretty much identical to the original in tube diameter and length. This makes it easy for exhaust routing for older trucks and you can use a 3.0 r150 to keep the slave cylinder on the passenger side which I hope makes it a little easier when I get to that point.

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

helipilot77

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Re: 81 pickup 5vz swap
« Reply #2 on: Sep 03, 2018, 10:58:27 AM »
watching this one. At one point Zippo and I were thinking about doing this to his potential vehicle which will likely be a first gen. We also thought about doing it to Steve's Ol' Blue 82' long bed neither have happened so I'll be interested to see how you get on. We thought a hole in the hood might be necessary.
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CrazyYota

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Re: 81 pickup 5vz swap
« Reply #3 on: Sep 03, 2018, 11:26:55 AM »
Some good news! I have been wanting to drop a 1uz in my 83 , but want to keep it street legal. This was another engine I thought about.  :beerchug:
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spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #4 on: Sep 07, 2018, 05:26:54 PM »
Worked a little bit on disconnecting everything today. 22r is ready to come out. I have a r150f lined up on Sunday but now I need a v6 adapter and 23 apline input gear for my dual cases. I also need a 2nd gen 22re gas tank. I have found that the 22re fuel pump has adequate pressure needed to run the 3.4. They are rated at about 44 psi and minimum requirements for the 3.4 is 21psi. If anyone reading this is near Lodi, CA let me know if you have parts. Also, the emissions and ecu wiring appears to be very simple on the T100. There is no VSS needed for the ecu and the engine harness is in a neat bundle ran underneath the intake. Even the fuse boxes have very little circuits.

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #5 on: Sep 17, 2018, 09:47:02 AM »
I got the harneee out of the T100. I'm pretty sure I'm going to be cutting out 75% of the wires from the dash harness. The main portion is 2 plugs that go straight from the ECU to the engine. I also was debating painting the engine bay hut after some purple power and some elbow grease it looks much better. I hope to get the 3.4 out in the next day or 2 and kind of test fit in the engine bay. I'm finding it difficult finding a r150f for a reasonable price near me. Even better,  might be getting a set of dual cases with dual 4.7s.

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

Pat

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Re: 81 pickup 5vz swap
« Reply #6 on: Sep 17, 2018, 01:40:57 PM »
This will make a killer build.  Nice!!
Oroville CA, 80 miles north of Sacramento

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Re: 81 pickup 5vz swap
« Reply #7 on: Sep 17, 2018, 02:56:42 PM »
:popcorn:
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slacker

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Re: 81 pickup 5vz swap
« Reply #8 on: Sep 17, 2018, 07:13:27 PM »
love mine .. and you'll love yours 

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gnob

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Re: 81 pickup 5vz swap
« Reply #9 on: Sep 17, 2018, 07:14:12 PM »
You should consider just swapping in the entire T100 harness and mod as needed.  This will keep your wiring simple and also update the wiring harness of your exsisting rig.
hold this. . .

gnob

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Re: 81 pickup 5vz swap
« Reply #10 on: Sep 17, 2018, 07:16:09 PM »
love mine .. and you'll love yours 




SC 3.4 in a Trekker?  Simply awesome!.
hold this. . .

spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #11 on: Sep 17, 2018, 08:40:38 PM »
love mine .. and you'll love yours 


I have to ask, what did you use for a radiator?

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

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TRevv

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Re: 81 pickup 5vz swap
« Reply #12 on: Sep 20, 2018, 09:04:03 AM »
I really like where this is going. Cannot wait to see how it turns out.  I will be creepin in the background.  ;) :usa:
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slacker

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Re: 81 pickup 5vz swap
« Reply #13 on: Sep 21, 2018, 06:29:59 PM »
I have to ask, what did you use for a radiator?

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spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #14 on: Oct 08, 2018, 06:38:51 PM »
Small update.

More parts have come in. I got the dual cases mounted to the r150 via the Advance Adapters...adapter. I retained the 21 spline transfer case input gear using their 23/21 spline coupler. Hopefully it holds up :/ Also got a gas tank. It's from a 1987 22re pickup, and I believe it's a 17 gallon tank. Although the mounts line up, the top half of the tank is taller then the stock longbed 16 gallon tank. Now it hits the bed supports before I can mount it correctly. So at this point I think I will opt for the 2inch body lift for clearance and  convenience. However that means I need new sliders and bumpers. I also sent my exhaust crossover to toyonlyswaps to modify it for left side dump. They retain the factory heat shielding and dimensions so fingers crossed the smog referee will accept it. Lastly, the engine mounts are cut out and old fuel lines removed. Now I need to figure out what to do for the high pressure power steering line. This pump has a banjo bolt with a vacuum switch valve directly connected to it. Maybe I can reuse it some how.

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #15 on: Oct 08, 2018, 06:39:44 PM »
Good thing I have a long bed, this thing is long.

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

gnob

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Re: 81 pickup 5vz swap
« Reply #16 on: Oct 09, 2018, 04:52:23 AM »
We found that the HP PS flare would screw into the banjo hole. (at least from RE to RZ.
hold this. . .

redneckcustoms13

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Re: 81 pickup 5vz swap
« Reply #17 on: Oct 09, 2018, 04:56:58 AM »
Pat, if you remember our conversation the other day just drop the rear of the tank down 2" with spacers and longer bolts.
80 short bed, longs, hi steer, 4.7 case twin stick, 4.11, 38 tsl, mild built 22r
83 long bed, sas, hi steer, 3rz, w56, 4.56 33s
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spuds015 [OP]

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Re: 81 pickup 5vz swap
« Reply #18 on: Oct 09, 2018, 09:42:11 AM »
Pat, if you remember our conversation the other day just drop the rear of the tank down 2" with spacers and longer bolts.
After looking at it from the outside of the truck it doesn't hang as low as I thought it did so I may try this too. Did the truck ever have fuel starvation issues on the street with the gas tank angled up?

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'81 pickup 22r, weber 32/36, 5 spd, 35's, welded 4.56's, f150 rear springs, Rears up front, TG dual adapter w/ 2.28's

redneckcustoms13

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Re: 81 pickup 5vz swap
« Reply #19 on: Oct 10, 2018, 12:41:35 PM »
Not a bit and I run it on down to below e.
80 short bed, longs, hi steer, 4.7 case twin stick, 4.11, 38 tsl, mild built 22r
83 long bed, sas, hi steer, 3rz, w56, 4.56 33s
95 4runner project
06 4 door tacoma street truck