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Author Topic: Corax's 1UZ VVTi 4runner swap  (Read 6691 times)

Offline Sigma Projects

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #45 on: Jan 30, 2019, 10:25:57 pm »
Good question, although I don't know what would be accurate, especially free.
1984 Celica GT Coupe    sold and missed it
1983 Celica GT Coupe    attacked... will miss it (RIP) JY
1982 Celica GT Liftback  sold and won't miss it, lol
1985 Celica GT Coupe    new love =P

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Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #46 on: Feb 02, 2019, 01:24:03 am »
the problem.  no matter how much I tried to clearance the trans cross member, the transfer case would still hit it


so I modified a 3.0 V6 cross member (trans mount moved 1.9" back from the stock location)


side by side comparison.  3.0 V6  chain drive transfer cross member on top, 22RE gear drive transfer case cross member on bottom.  You can tell the 3.0 V6 cross member is swept forward much more, giving more room for the transfer case


much better, and a lot more room
'85 RA64 Celica GT notchback

Offline Sigma Projects

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #47 on: Feb 04, 2019, 08:09:32 am »
much nicer
1984 Celica GT Coupe    sold and missed it
1983 Celica GT Coupe    attacked... will miss it (RIP) JY
1982 Celica GT Liftback  sold and won't miss it, lol
1985 Celica GT Coupe    new love =P

2000 Honda Insight Daily Beater
1987 MR2 now mine because brother in law got shit from the father in law :heh:
My Instagram
My Website

Offline Sigma Projects

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #48 on: Feb 04, 2019, 01:18:21 pm »
lol, I need one of those drones that follows you.  maybe I can move my dashcam back . . .
I am looking for a good Android dyno app (preferably free) which references engine RPM so I can get a baseline before I start tuning it a bit, any recommendations?

You might like this, just stumbled upon it.
https://barnhill.bitbucket.io/

YMMV based upon how you set it up.
edit: This guy shows how he used it.
https://youtu.be/Sz7NBbFBQ9Y
1984 Celica GT Coupe    sold and missed it
1983 Celica GT Coupe    attacked... will miss it (RIP) JY
1982 Celica GT Liftback  sold and won't miss it, lol
1985 Celica GT Coupe    new love =P

2000 Honda Insight Daily Beater
1987 MR2 now mine because brother in law got shit from the father in law :heh:
My Instagram
My Website

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #49 on: Feb 09, 2019, 01:40:52 am »
no new pics, but took my first long(er) road trip with the truck.  Commuting back and forth to work (about 8 miles, 30-45 minutes), I was getting 15 mpg.  Two and a half hours at 75mph got me 17mpg - about the same that I was getting with the 7MGE.  The 1UZ is still setting about a dozen AT codes, I'm hoping fuel economy improves a bit more once I get the auto trans emulator (ATEMU) from Russia.
'85 RA64 Celica GT notchback

Offline sirdan

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #50 on: Feb 09, 2019, 02:03:55 am »
What gears do you have? and are you running 33-12.5 tires?
1988 4runner

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #51 on: Feb 09, 2019, 05:49:28 pm »
You might like this, just stumbled upon it.
https://barnhill.bitbucket.io/

I'm not sure I can datalog with the Torque app + the refresh rate on data from the stock ECU is pretty slow if you have more than 2-3 sensors selected.  I might be able to get a base line close enough to be able to make a comparison by recording JUST the RPM and MAF readings . . . MAF (in g/sec) divided by 0.82 = HP.  I'll have to find some time to check out that program a bit, thanks for the link

What gears do you have? and are you running 33-12.5 tires?

I have 33x10.5x15 BFG KM2 tires and 4.88:1 gears, my speedometer and odometer are fairly accurate.
'85 RA64 Celica GT notchback

Offline sirdan

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #52 on: Feb 09, 2019, 09:32:45 pm »
Oh those are like 22re gears! Could be some mpgs to pick up with numerically lower gears but, being a stick shift that lower gearing is nice off road for sure.

I think with your combo you would be around 3,000 rpm at 70mph. I did some rough calculations and the lexus the 1uz came in would be about 2200 rpm at 70mph. Granted your also 1,000 pounds heavier and planning on towing. Maybe 35 inch tires would get the rpm down just a tad  :heh:
1988 4runner

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #53 on: Feb 11, 2019, 12:33:48 am »
Oh those are like 22re gears! . . .  Maybe 35 inch tires would get the rpm down just a tad  :heh:

My '88 had 4.10's in it originally, I swapped to 4.56 at one point, now I have 4.88s.  Probably gonna stick with this gearing, but dammit, now you have me thinking about 35's since I need new tires soon anyway  :heh:
'85 RA64 Celica GT notchback

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #54 on: May 26, 2019, 02:09:06 am »
I did this a little while ago, and my Check Engine Light has been off since.  There are still 3 DTCs stored, mainly relating to missing CAN bus modules, but the engine is no longer in any kind of limp mode and the fuel trims are being learned/stored from one key cycle to the next instead of having to be relearned every time I start the engine.  Cost for this was $105 shipped from Yuri in Moscow, Russia and is really simple to wire up (though it would have been nice if all the wire colors were different).  Yuri can also bypass the immobilizer on VVTi engines so you don't have to deal with the immobilizer, but you do have to send your ECU to him.

His services and products can be found here: Toyota ECU security off, conversion adapters, parts








to show how small it is:
'85 RA64 Celica GT notchback

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #55 on: May 26, 2019, 02:11:25 am »
I think my cheap dash cam has something loose inside it rattling around, so the audio is a bit poor, but this will give you an idea of how the swap sounds.  This is a partial run of the 20 mile Nahwatzel stage from the Olympus Rally about a month ago

https://www.youtube.com/watch?v=0zxqIDTubzY
'85 RA64 Celica GT notchback

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #56 on: Aug 31, 2019, 12:20:48 am »
The cable actuated heater control valve wouldn't work with my swap, so this is what I came up with instead. A 5/8" vacuum actuated heater valve (normally closed, opens when vacuum is applied) with a simple vacuum solenoid wired to turn on when I press the A/C button (haven't had A/C in over a decade).  This definitely dropped in-cab temps a bit, and the air coming out of the vents is cooler, since coolant isn't flowing through the heater core all the time. 

The vacuum source hose before the solenoid has a small one-way check valve in it so the valve is less likely to close when the engine is making low vacuum (wide open throttle, for example). The vacuum valve I used is a "Universal Air Conditioner HV 1021C HVAC Heater Control Valve" from Amazon (valve name is a click link)




also, video from the Olympus Rally a few months ago
https://www.youtube.com/watch?v=ITu2rbKeyAA
'85 RA64 Celica GT notchback

Offline corax

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #57 on: Jul 12, 2020, 04:37:35 pm »
last year I made a custom oil pan to gain a bit of steering clearance:
https://forum.ih8mud.com/threads/coraxs-1uz-vvti-swap.1021841/page-4#post-12623196

for the last month, it was axle work.  whenever you upgrade one part, expect another to become the weak link.  last month, the 8" e-locker rear finally gave up the ghost, so a new rear axle seemed appropriate.  I ran some numbers, and for a little bit more than what it would cost me to build a stout 8.4" Toyota axle, I could build a bullet proof Ford 9".  This axle hasn't been used for nearly 30 years, but aftermarket parts are cheap and plentiful plus it's strength is well known and it's still used in motorsports.   A good comparison of the D60 and Ford 9" can be found here:

https://www.tacomaworld.com/threads/actual-moderator-with-a-tacoma-but-definitely-not-a-build-thread.455075/page-118#post-17132583



This is what I started with - the axle ends made me think it was a 31 spine (it wasn't) and I was hopeful it might have a TracLok LSD as those were a very common option (it didn't), but it does have "early" big bearing ends. Funniest part about the axle I bought, it had 2.75:1 gears in it  :heh:




after stripping off all the bracketry.  this housing measured 60.5" flange-to-flange, add 5 inches for the axle to poke out, and it's almost a perfect match width for the front long travel



a simple back brace brace was installed and 95-00 Ford Explorer disc brakes were mocked up.  I like the Ruff Stuff F9 back brace better, but was hopeful that this style would leave me with enough room to keep my 33" spare underneath the truck (it didn't).  The Ford disc conversion is a direct bolt-on for "Torino" style or "late" big bearing housings, but can work as well on "early" big bearing housings with a small amount of bolt hole slotting.  A special spacer also has to be used between the bearing retainer plate and the bearing if you decide to go with Exploder discs (Currie makes one, so does Dutchman Axle and several other companies).



getting the spring perches tacked in place so the pinion flange angle matches the transfer case flange angle.  Of note is that the top of the axle tube on all Ford 9" housings is crushed flat at the factory, so normal spring perches for round tube need some grinding to have a nice tight fit before welding.  I also welded in a 3/4" NPT fill/inspection port at the top and 3/8" drain plug at the bottom rear of the housing (there was no drain plug originally)



Some other goodies arrives from Dutchman Axle in Idaho.  When I priced all the parts I wanted, I realized that they could build the center section for about the same cost as the individual parts.  the build list is something like this: Strange Engineering nodular Pro Series center, cast iron "Daytona" style pinion support, 4.86:1 US gears (close enough match to the 4.88:1 I have in front), and Detroit Truetrac helical LSD for 35 spline axles (largest factory F9 axle shaft is 31 spline, 35 spline also requires a larger differential side bearing than Ford offered, so more beef).  I also used a Trail Gear F9 triple drilled pinion flange so a Toyota driveshaft could be bolted on (this one seeps a bit, I think it might have to do with the machine finish at the seal area and might try polishing it, Nitro Gear also has a triple drilled F9 pinion flange)



35 spline axles are beefy. Dutchman made them in 6 x 5.5 bolt pattern for me with a center pilot to match the Exploder discs. I had them ship the axles without bearings and lug studs installed so that I could use the axle flange as a pattern to drill the Exploder discs to 6 lug as well. Axle shafts are using the stronger Set20 tapered bearings which are normally lubricated by the gear oil in the housing (need to remove the inner axle seal), but sometimes leak if you have to remove and reinstall the axle shaft. Dutchman also offers an optional bearing retainer collar which lets you keep the inner axle seal, for less chance of a gear oil leak, which means the tapered bearing has to be packed with grease so it doesn't die a quick death. If I had to do it over, the only change I would ask is that the center pilot on the wheel flange be extended a bit so I could run a hub-centric ring for the wheels (a dab of crazy glue would work to hold it in place). If you order axles to work with Exploder brakes, make sure they have 2.5" backspacing from the wheel flange to bearing (many stock axles have 2.375" and the rotor contacts the backing plate) and there needs to be an inspection hole drilled in the wheel flange to be able to tighten the bearing retaining plate nuts.



I weighed everything before assembly and this is what I came up with:

 48.1 lbs for both 35 spline axle shafts - fully assembled

 39.6 lbs for both rear disc assemblies - backing plates, calipers, parking shoes, disc pads

 62.0 lbs for housing with all brackets/mounts installed

 77.9 lbs for fully assembled Strange center section

227.6 lbs total dry weight without the 3.5 qts of 85-140 gear oil it takes to fill it


shock mounts were located and welded in place to let me use 10" stroke Bilstein monotubes with the stock upper mounts - a future project is going longer stroke with outboard shocks, but I needed to get this back on the road





I might try shifting my auxiliary gas tank and spare tire hoist back a bit to see if I can put the spare underneath again, but this is too close at ride height



plenty of room for the brakes inside stock 15" Taco alloy wheels.  Brake feel is great and stopping is much better than my old Toyota drums ever were.



just a a couple inches of poke on the rear axle, but track width now matches the front




'85 RA64 Celica GT notchback

Offline Sigma Projects

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #58 on: Jul 12, 2020, 07:05:45 pm »
damn looks awesome!
1984 Celica GT Coupe    sold and missed it
1983 Celica GT Coupe    attacked... will miss it (RIP) JY
1982 Celica GT Liftback  sold and won't miss it, lol
1985 Celica GT Coupe    new love =P

2000 Honda Insight Daily Beater
1987 MR2 now mine because brother in law got shit from the father in law :heh:
My Instagram
My Website

Offline twotone_ra64

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Re: Corax's 1UZ VVTi 4runner swap
« Reply #59 on: Jul 12, 2020, 11:07:19 pm »
So many shiny parts... and amazing that this will swap in! Good work
Celica the '84 Two-tone RA64 - Phase 2 In Progress! (159k); 1UZ-FE V8 Swap, W58 5-speed swap, Koni x Swift x T3 suspension, 6G Celica seat belts, TRD 2-way LSD, Konig Rewind 15x7" +0, zenki taillights, Cobra Imola Pro-fit seat, T3 seat rails
Mia the '91 Miata - Revived Twice! (264k); BP-5A 1.8L swap, an NB in NA clothes
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