90927837 2jzgte vvti information
TRANSCRIPT
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)
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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.