2JZGTE VVTI Informationhttp://www.2jzgarage.com/2012/02/2jzgte-vvti-information/Posted on February 28, 2012

(VVTi 2JZGTE left – Japan Only, VVTi 2JZGE Right – US/UK Only – This is true for supras, other toyotas may have had these engines available in other models)

Specs: The VVTi 2jzgte came in JZA80 Supra from September 1997 – July 2002 Max Power: 209 @ 5600 (280 hp) Torque (nm) 46.0 @ 3600 (338ft/lb) Injectors: 440cc Injector Impedance: High Impedance Stock recommended Denso plugs: PK20TR11 Stock recommended NGK plugs: BKR6EKPB11 Airflow Sensor: Hot wire type airflow meter Fly by wire throttle (Still has throttle cable) Traction control is built into ECU ECU is OBDII based ECU but you cannot use the standard OBDII scanners to

read error codes/diagnostics etc Rev Limit: 7200rpm Speed cut: 180km/h

How VVTi Works How the ETCS-i (throttle control system) works

What is VVTi: -

Variable valve timing with inelligence(VVT-i)optimizes engine efficency by constantly retarding or advancing intake valve timing depends on conditions and engine speeds. The result is exceptional low-end torque to get you off the line ,mid–rang punch for passing situations and clean-burning efficiency throughout the rev range.Unlike some systems that switch between two compromise settings,VVT-i adjust continuously,tailoring performance to suit virtually any situation.Some further reading and explanation of VVTi with diagrams:http ://blog.lexus.com/2008/02/vvt-i-its-all-a.html Are VVTi head components different then non-vvti?Yes and no! The vvti has a different Intake cam/cam gear (As it’s VVTi!) Aftermarket cams are available for the VVTi such as HKS’s Valcon system yet they are expensive, a custom grind is probably a more viable option. Link to HKS Valcon Unit: http://www.hks-power.co.jp/products/…on/valcon.htmlThe exhaust cam/cam gear is the same as the non-vvti exhaust cam and can take aftermarket cams such as HKS, JUN etc.The actual head components are the same (Well at least interchangeable with non vvti and aftermarket parts). These parts are listed below. The only difference I found in part numbers were the shims, not sure on differences, may only be part updating and no physical change.

Is the VVTi engine weaker?No, some Toyota lovers will know that most of the later model vvti engines such

as (1UZ, 3UZ etc) had weaker rods. The VVTi 2JZGTE rods are the exact same size as the non-vvti units. Also the crank is exactly the same and so are the pistons and everything else in the bottom end. Below I have listed all the parts and they are exactly the same, they have been confirmed in the EPC (Toyota Electronic Parts Catalog) Pics are also shown below in the end of the post. The only 1 different part number I found was the crank pulley (not the whole dampner/balancer, just the pulley, look like exactly the same thing, and they are!)What parts are the same as non-vvti? (Confirmed from EPC and personal experience and research)

Bottom end:Shortblock: YesBalancer: YesPistons: YesPiston Rings: YesBearings (Rod and crankshaft): YesRods and rod bolts: YES! YES! YES!Crank: YesOil Pump: Need to confirm but most likely YES – They have a different part number, but only at the last number which usually means they were the same unit but updated when new series started etc. Also there is no seperate diagram which also is a good indicator they are the same.Head:Exhaust Cam/Cam Gear: YesIntake Cam/Cam Gear: NoSprings: YesRetainers: YesBuckets: YesSeats: YesIntake and exhaust valves: YesValve guides: YesLifters: YesLocks: YesSeats: YesShims: Same size and fit but different part numbersOther:Timing Belt: YesTop radiator pipe: No (Different size – due to intake cam lump)Throttle cable: No (Different size)Intake manifold: Can be swapped but has different vacuum piping/different IACV and of course different Electronics/TRAC/Throttle BodyExhaust Manifold: YesElectrics/ECU:ECU: NoTRAC: No (Built into the ECU)VVTi – ETCS Fuse 15amp Non vvti – TRAC fuse with 7.5amp

Aristo Engine differences:The VVTi 2jzgte engine also came in the Aristo (1998-2002), as I’ve done a conversion using this engine I can provide some information on the differences, some more information is on my project conversion thread from supraforums AU but soon to be summaried and added to a new post on 2JZGARAGE – Project SZR to TT.If you are swapping this engine into a supra you will need to do the following:

Aristo power steering pump has a solenoid valve which the supra doesn’t, mainly this effects the power steering lines as the bolt configuration is different, you will need a supra one

The water pump is the same on the VVTi and is not hydro - it will not need to be changed

The aristo has a front mounted sump, you will need to change to a supra mid mounted sump layout.

Engine loom will need to be modified or swapped for a supra unit Engine Mounts and brackets will need to be swapped Brake booster bung   (Goes to top of intake manifold) o2 sensor loom plug will need to be swapped Water temp sender (Not sensor) will need to be purchased and installed Oil level sensor plug may need to be purchased Heater hoses from engine will need to purchased as the aristo ones are

different Oil dip stick bracket is different Oil return lines from turbos are different Fuse box will need custom wiring, some differences: ETSC (TRAC Control)

fuse is 15amp, I setup the wiring for FAN (Don’t have them though), EFI1 and EF2 relays and fuses were setup as NA only uses one EFI relay, TEL Fuse Wiring

Pictures of original engine – 2JZGTE VVTi out of an 2000 Aristo that I used for my conversion

Engine with Titan Cam gear and Power Enterprise Timing Belt

Intake Manifold and lower runners

Aristo and Supra power steering pump differences:

Aristo Sump (Front sump configuration)

Supra Sump (Mid sump configuration)

2JZGTE VVTi Aristo Wiring Loom

2JZGTE VVTi Supra Wiring Loom

ECU – Has traction control built-in (Last plug on RH side)

Water Temp Sender (Not Sensor – water temp sensor is below)

More pictures of a stripped down 2JZGTE VVTi engine and components can be found here – (Link to be added)

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ONE THOUGHT ON “2JZGTE VVTI INFORMATION”

1. Pingback: 2JZGTE VVTi Aftermarket Support | 2JZGARAGE

2JZGTE VVTi Aftermarket SupportPosted on February 28, 2012There isn’t too much different between the 2JZGTE VVTi and 2JZGTE non-vvti but  there are some parts that are different and things you need to check before modifying, upgrading or starting a new project. Below are some parts and vendors that are compatiable or make parts specifically for the 2JZGTE VVTi for aftermarket support.

Check out my other post regarding 2JZGTE VVTi engines for any more specifc information about the engine - http://www.2jzgarage.com/2012/02/2jzgte-vvti-information/Aftermarket ECU’sThings to look for when buying an aftermarket ECU

Controliing VVTi functionality/support FBW (Fly by wire) Electronic Throttle Control Using Traction control/ABS system Wasted Spark Ignition Finding a tuner!

One workaround for the FBW system is to not use it at all, one option is to use a non-vvti or aftermarket throttle body to and to also use a non-vvti IACV (Idle Air Control Valve), this means there is no FBW requirement or complexity.

ECU’s known to have support - Note some of these vendors may not have full support of factory functions.

ViPEC V44 and V88 – VVTi and FBW support (V88 only supports FBW)http://www.vi-pec.com

Motec M600/M800 – VVTi and FBW support – http://www.motec.com.au/home

Haltech E11V2/PS1000/PS2000 -VVTi Support – http://www.haltech.com/

Link ECU G4 Storm/Xtreme – VVTi and FBW support – http://www.linkecu.com/

ProEFI – Pro48/Pro128 – VVTi and FBW support –http://www.proefi.com/Home_Page.html

AEM EMS/S2 -VVTi Support http://www.aemelectronics.com/ HKS F-con V Pro – VVTi and FBW support but only a selected few HKS Pro

dealers in Australia that can tune it – http://www.hks-power.co.jp/products/…/fcon/top.html

Autronic SM4- VVTi support – http://www.autronic.com.au/Aftermarket Cams

Support for aftermarket cams used to mean expensive HKS and valcon controller kits, but now there are more options

Titan Motorsports – 264 9.35mm lift and 272 9.9mm lift available http://www.titanmotorsports.com/

Brian Crower –  264 9.52mm lift, BC 272 9.65mm lift and BC 280 10.79mm lift -http://www.briancrower.com/ (Note – These are listed as 2JZGE cams but are compatiable with 2JZGTE – please confirm with BC though, there is pics of install on this thread – http://www.clublexus.com/forums/performance/365590-brian-crower-264-2jz-vvti-cams-install-tune-results-and-diy.html)

Custom grind – Many cam manafacturers can create a camshaft based on your requirements and specifications, such as Kelford cams – http://www.kelford.co.nz/

HKS have discontinued the 2JZGTE vvti cams and calcon kit but some vendors may have some in stock or you could buy 2nd hand

Using the IGF pin as an RPM outputPosted on February 21, 2012One thing I’ve been meaning to fix up is my apexi RSM since going single turbo and aftermarket ViPEC V88 ECU.

I used to splice the Apexi RSM RPM wire to the IGF wire on the stock loom as per the Apexi Manual, this gave me a RPM reading on the Apexi RSM without any issues.

The stock 2JZGTE ECU uses a IGT and IGF ignition signal – basically the IGT sends signals from ECU to igniter and IGF sends ignition verification signals from igniter to the ECU – to confirm ignition spark which allows the ECU to enter fail-safe or limp-mode if there is a problem. There is a good writeup here on how the whole system works for different Toyota ignition types for more technical info -http://www.autoshop101.com/forms/h23.pdfThe ViPEC (and most other EMU’s) don’t need the IGF wire function, so it’s not plugged into anything usually.

Now with the ViPEC in and no stock ECU I hooked the IGF wire directly to the Apexi RSM (Not plugged into ViPEC at all). I’m  now getting an RPM signal on the Apexi RSM, so anyone wanting to use the signal for RPM can if their tacho device uses the stock IGF signal location.