90927837 2JZGTE VVTI Information

2JZGTE VVTI Information http://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.html

The 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: Yes

Balancer: Yes

Pistons: Yes

Piston Rings: Yes

Bearings (Rod and crankshaft): Yes

Rods and rod bolts: YES! YES! YES!

Crank: Yes

Oil 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: Yes

Intake Cam/Cam Gear: No

Springs: Yes

Retainers: Yes

Buckets: Yes

Seats: Yes

Intake and exhaust valves: Yes

Valve guides: Yes

Lifters: Yes

Locks: Yes

Seats: Yes

Shims: Same size and fit but different part numbers

Other: Timing Belt: Yes

Top 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 Body

Exhaust Manifold: Yes

Electrics/ECU: ECU: No

TRAC: 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)

Share this: Share

This entry was posted in Resources, Specifications, Tech Articles and

tagged 2jzgte, Conversion,Differences, vvti by 2JZGARAGE Administrator. Bookmark the permalink.

ONE THOUGHT ON “2JZGTE VVTI INFORMATION”

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

2JZGTE VVTi Aftermarket Support Posted on February 28, 2012

There 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’s

Things 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 output Posted on February 21, 2012

One 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.pdf

The 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.