Anybody used Unichip Piggyback on '96-'04 3.4L v6 5VZ-FE? Sorry heads up this is a long post.

I recently purchased a Unichip Piggyback PNP System Part Number 1020111. This Model is made for Toyota Tacoma '96-'04, 4Runner '96-'02 and is compatible "Even though on the Unichip's website they do not list the 1996-1998 Toyota T100 as them making a Unichip Product for that application. However you can get it too work on the T100's you just need to customize the way and where your going to mount the Unichip Computer and wiring. Also if you do plan on buying a Unichip for your T100 I do highly recommend it I just don't recommend buying the "Plug and Play" Model like I did because there wiring and pin out connections take up alot of room. So buy the model where it has you simply has you solder the wires in which now I see after buying the PNP kit how simple soldering them would have been! You see on the 4Runner and Tacoma models the ECU is located behind the glove box and Unichip engineers everything nicely to fix perfectly so you'll never know it's there. Now with my T100 the ECU is located on the passenger side kick panel and there is no room for the aftermarket Unichip equipment so mine just lays there on the ground until I figure out a way to better custom fit it. I'm going to end up needing to ditch the PNP setup and custom solder the wiring that way it will fit behind the passenger side kick panel so I can't see it!

Ok lets get back on track I purchased my 1996 Toyota T100 Ext-Cab 4WD equipped 5 Speed Manual Tranny and the 5VZ-FE 3.4L V6 Engine In January 2020. I bought the truck for a great deal because it had a bad head gasket which at 260K miles was pretty normal. Instead of ripping the engine down and replacing the head gaskets on a engine that already had been drivin alot with a bad head gasket and overheated a few times plus it already had just over 260k original miles on the clock. So I decided to Purchase a Used complete engine from an over seas Japanese company with a full warranty on it! Also all thier engines they sell have only between 40K to no more than 60K miles on them. Apparently in Japan at 40K to 60K miles all thier engines get replaced. My engine came out of a Van with 52,356 original trouble free "verified miles" on it. It came with all pictures and every single service Receipt since the van was Brand New. The engine was absolutely solid zero fluid leaks of any kind. All 6 cylinders read extremely close to the same across all cylinders of "182 PSI" reading which is what it is brand new (175-185PSI) from the factory! Before installing the new "used" engine I of course replaced the Timing Belt and Water Pump Along with All the Drive Belts Using only OEM Factory Toyota Denso Parts and Toyota Brand Drive Belts. Yes even though it only had 52k miles and the old Belts and pump were it excellent shape. I am I serious preventive maintenance nut! I also replaced the clutch and flywheel, along with the clutch slave and master cylinders. My T100 now has 282,920 miles on it. Honestly I can say since installing the "used" engine straight from Japan with 52K miles on it, engine now has 22,930 trouble free miles my truck has has HONESTY HAD ABSOLUTELY ZERO PROBLEMS WHATSOEVER!!! And still does not leak or use any fluid or oil of any kind. Surprising huh.... NO its a freaking Toyota!!!

**Okay here is a complete list of my mods. that I've performed myself.**

* Magnuson MP62 Root Style Supercharger, Lubricated with Synthetic Supercharger Oil. It puts out 11 PSI Boost with a 2.0" Pulley... I live in Northern Utah. approx 4,850ft above sea level The Supercharger kit came with New Updated Belt Tensioner, URD Red Tensioner Pulley and a New Premium Gates Supercharger Belt.

* Snow Performance Stage 2 Part Number. SP10230 Water/Methanol Injection System. I use the #5 Nozzle. I also make myself a Custom made Blend of 50% Pure High Grade Methanol and 50%
Distilled Water.

* USED ECU from a 1997 T100. (Required. for proper Supercharger Function with a 1996 T100.) The 1996 T100 ECU Is Incompatible With The Use of the. Supercharger because in '96 the T100's
ECU's Technology was lacking behind 1
1 year. The '96 ECU would allow it to
automatically advance Ignition Timing
When running a Supercharger the auto
Advancement of Ignition Timing Is
Required In Order to Make Power!!!

* New 1997 T100 OEM Style Toyota Brand Throttle Body with New TPS. (The 1996 TB & TPS are Different than the 1997 and like the '96 ECU The '96 TB and TPS are not compatible.)

* Toyota Brand OEM Wheels and Tires From 2016-2022 Toyota Tacoma.

* K&N FIPK Gen II CAI With Upgraded. Larger K&N Air Filter.

* New High Flow CAT With All New 2.75" Exhaust Piping From The CAT Back With A High Performance Magnaflow Muffler.

* 2 Step Colder Denso Brand IK22'S Plugs,
With Performance Red Top Ignition Coils,
And Denso Spark Plug Wires.

* New Denso Brand OEM MAF.
New Denso Brand OEM Pre&Post CAT o2 Sensors.

* New 4 Core All Aluminum Radiator.
* 170 Degree Thermostat.

* ScanGauge II Multipurpose OBDII Computer.

* UEGO AFR Gauge with 4.9 Bosch LSU WideBand o2 Sensor.
AutoMeter 0-15PSI Boost Gauge.

* Areomotive 340 Stealth In-Tank Fuel. Pump Part Number 11542.
Updated OEM Toyota Brand Fuel Pressure Regulator.
Updated OEM Toyota Brand Fuel Filter.
Updated Fuel Lines From Fuel Tank Into. Fuel Filter and Out of Fuel Filter to Fuel Rail.

* New Upgraded Shocks Front and Rear.
New Upper and Lower Ball Joints.
New Front Sterring Stabilizer.

**I had my Supercharged T100 on the Dyno on 3/1/2022. Here's the numbers she put down!
Now keep in mind that Toyota New from the factory done at a sea level location? Rated Tacomas and I would imagine the T100 output was rated the same?**
(Factory Flywheel Numbers)
"190 HP At The Flywheel"
"217 TQ At The Flywheel"

Here are the Dyno Numbers from my '96 Supercharged T100 put down.
"Both Flywheel and Corrected RWHP"

-321 FWHP @ 4,850 RPMS.
-370 FWTQ @ 3,650 RPMS.
"CORRECTED NUMBERS With 5 Speed Trans
and Larger Wheels and Tires."
-279 RWHP @ 4,850 RPMS.
-322 RWTQ @ 3,650 RPMS.

**51 Horsepower Loss & 46 Tourqe Loss**
Through Drive Train & Tires/ Wheels as we as the power loss from being dynoed at 4,850 Feet Above Sea Level
Approximately 13% Loss Through Drive. Train High Elevation.
My AFR's @ WOT were low 10's-11.5:1
Running Water/Methanol Injection I'd really like to be at 12.5:1 AFR.

**Not too shabby if you ask me for a. Nearly 27 year old truck with 283K Miles!

* I ONLY USE AMSOIL SYNTHETIC. LUBRICANTS In everything in my T100, Amsoil 5w30. Signature Series 100% Synthetic Engine. Oil, Amsoil EA15K51. Synthetic Nano Fiber Technology Oil Filter, Amsoil 75w90
Severe Gear Synthetic Gear Oil In Rear Differential, Front Differential, Transfer Case, 75w90 Manual Transmission Synthetic Gear Oil In Manual Tranny, Amsoil Dot 4 Synthetic Brake Fluid In Front and Rear Systems and Clutch Hydraulic System, Amsoil Premium Long Life 150,000 mile Antifreeze. Amsoil P.I. Fuel System Treatment, Amsoil Upper Cylinder Fuel Treatment, Amsoil Multipurpose Synthetic Greese NLGI #2,. Amsoil Synthetic ATF For Power Steering. Fluid. Plus all of the many other high. quality products that Amsoil offers!

***FUTURE MODS TO COME VERY SOON***
* Get Unichip Piggyback Dialed in ASAP!
* Install SET OF CHROME CERAMIC COATED HEADERS! (Sitting in garage ready to install)
* Install my Stage 4 400HP+ Rated Complete Clutch Kit!
* Maybe down the road swapping my Magnuson. Supercharger out and replace it with an Intercooled Turbocharger!!!
* More mods I just can't think of at the moment!

 

Lol.... I know I know it's a stupid long post. Sorry I was super bored and wanted to be really in depth just in case someone out there knew about tuning vechicles like mine using the Unichip Piggyback.

 

Hey man would love to get an update on your build and how the unichip is working.. I have some pretty bad ping in my truck up here in Vancouver Canada.

I'm trying to figure out what the best route is to go first to attack the issue. It seems like the 7th injector and urd 6 injector kit is kinda outdated and isn't 100% foolproof method from what I'm reading so I've been looking at the aem fic 6 but is the unichip better in some way?

Did you experience any ping at all and what worked most for you? any suggestions would help a beginner like me in this territory alot. Cheers!

 

I would say this forum is in the haltech camp

 

It's less of a camp and more like one of those conventions that takes place at a hotel where everybody goes back to their rooms and shags each other silly.

 

So who is changing bed sheets in this metaphor

 

The 7th injector guys.