- The Lexus GS300’s factory-installed engine is a NA Toyota 2JZ-GE, but an upgrade to the venerable 2JZ-GTE like this produces significant power.
In This Article...
What model of Lexus is the 2JZ?
A 3.0 liter, six-cylinder engine known as the 2JZ-GE powers the Lexus IS300. Fans of the MkIV Supra ought to be acquainted with its engine code. Although it had a few internal tweaks and no turbos, the engine was fundamentally the same as the one in the Toyota Supra. An engine that, incidentally, the JDM Altezza never provided.
The Lexus IS300 produces 215 horsepower and 218 lb-ft less power than the Supra without turbos (alone). That is, at least, the stock production. Owners frequently install Supra turbos on their Lexus IS300s. According to Jalopnik, the 2JZ’s iconic status is directly related to how overbuilt it was. The Bubble Era, which gave the world the Skyline GT-R and Autozam AZ-1, came to a close at this time. According to Jalopnik, owners could theoretically triple the IS300’s output without any problems with the right tune.
Additionally, according to MT, there were the TRD-tuned Lexus IS300 L-Tuned versions. Stage I automobiles have a body kit, fog lamps, and an 8 horsepower stainless steel exhaust. New springs, bigger anti-roll bars, cast-aluminum wheels, and Michelin Pilot Sport tires are added to Stage II versions. They ride one lower as well. Additionally, a limited-slip rear differential was a choice.
The Lexus IS300 is a 2JZ.
The larger Lexus GS300 sedan’s 2JZ-GE 3.0-liter DOHC 24-valve straight-six, which may be traced back to the previous Toyota Supra, is the same engine that powers the IS300.
Is there a 2JZ engine in the 1998 Lexus GS300?
I would say that the GS300 is entirely distinct from contemporary automobiles in its own right. It has some unusual content that even my friends are surprised by. The naturally aspirated 2JZ-GE engine in this automobile is another thing that drew me to it.
What vehicles arrived with the 2JZ?
vehicles with the 2JZ-GE engine:
- Lexus IS300 and Toyota Altezza AS300.
- Lexus GS300/Toyota Aristo.
- Toyota Majesta/Crown, a Toyota model.
- Toyota Cresta, Toyota Mark II, and Toyota Chaser.
- Origin Toyota.
- Toyota Advances.
- Lexus SC300 / Toyota Soarer.
- Subaru Supra.
What distinguishes a 2JZ-GE engine from a 2JZ GTE engine?
The cylinder head designs of the 2JZ-GE and 2JZ-GTE are a significant distinction. Since forced induction was a consideration during the design of the 2JZ-GTE, certain significant alterations were made to the cylinder head to make it more boost-supportive.
Both versions of the 2JZ, as was already established, have aluminum heads with electronic fuel injection. However, as far as flow is concerned, each head is made with a certain goal in mind.
The 2JZ community as a whole agrees that the 2JZ-GTE head has superior flow on the intake side while the 2JZ-GE head has greater flow on the exhaust side. The 2JZ-wider GTE’s intake ports, which enable higher flow at higher RPMs, are to blame for the increased intake flow. This supports the performance of high-RPM turbos. The 2JZ-GTE has smaller exhaust ports than the GE, but having larger intake ports.
The 2JZ-GE, in contrast, has smaller intake ports that are intended to boost cylinder velocity at lower RPMs. In order to align for a more direct shot into the cylinder, the smaller ports are also positioned higher up on the head. This improves the efficiency of atmospheric pressure.
On the exhaust side of the head, the exhaust ports are placed differently on the two engines. The architecture of the 2JZ-GTE differs from the 2JZ-GE, which has all six exhaust ports aligned in a straight line. Exhaust ports on the 2JZ-GTE are set up in banks of three, with a space between the first and last three.
Which head flows better is a hotly contested topic since each has a specific function for the engine it was created for. It must be acknowledged, though, that the 2JZ-GTE has significantly greater aftermarket support for its intake and exhaust manifolds.
What year was the Lexus 2JZ?
Every IS300 produced between 1998 and 2003 has a 2JZ motor. This engine is a 2JZ-GE, which is the same as the one in a Toyota Supra. The IS300 has become a favorite among those who enjoy customizing Japanese automobiles because they are renowned for producing a lot of power when modified.
In the IS300, the 2JZ standard engine developed 217 horsepower and 218 pound-feet of torque. Depending on the arrangement, this was mated to either a 5-speed automatic or 5-speed manual transmission. The SportCross wagon was initially solely offered with the automatic, but over time, third-party retailers have started to replace them with the manual.
Due to its Supra-like engine, available manual transmission, and rear-wheel drive, the first generation IS300 is a renowned little sports sedan. These elements work together to make the IS300 a fantastic, entertaining sports sedan.
How far can a 2JZ travel?
There are several reasons why the fourth-generation Toyota Supra is legendary, but one of them is its dependability. The 3.0 liter 2JZ straight-six in this Supra, which has allegedly racked up 520,000 kilometers, is particularly bulletproof. The motor, according to the owner, has also “never been touched.”
The owner of the vehicle provided Hoover Toyota in Alabama with these photos. Although the Supra isn’t for sale, the dealer nonetheless posted images and details about the vehicle on Facebook.
Despite having 520,590 miles on the clock, the non-turbo Supra is said to be free of rust and to have undergone no significant engine work. Unfortunately, no other information is given, such as the year of manufacturing or other characteristics. This Supra only has 220 horsepower, which is 100 fewer than its turbocharged predecessor.
You can make fun of Toyota for producing a decent number of unremarkable, ordinary cars, but you must recognize that every product it produces is dependable. You can be sure it will last whether it’s a humdrum Camry, a 4Runner, or a Supra like this.
Exactly which Lexus is the fastest?
Discover the most potent car that Lexus has ever produced. The Lexus GS F flawlessly mixes power, style, and grace into one ideal performance vehicle, with an amazing 467 horsepower and top track speed of 168 MPH.
Can a 2JZ-GE be turboed?
When it comes to turbocharging a 2JZ-GE engine, there are numerous possibilities. For a 2JZ, turbo kit options are the least expensive and most practical way to implement forced induction. If achieving large power goals is the ultimate goal, some people choose a custom arrangement. We will be mostly focused on pre-made kits to avoid misunderstanding as custom turbo setups are very specialized and specific to each individual automobile.
The 2JZ-GE is available with a large selection of turbo kits, just like the majority of highly customizable engines. Choosing the ideal turbo kit for your unique needs necessitates taking many things into account. What budget have you set out for a kit? What kind of power are you seeking? What auxiliary modifications are necessary to run each kit?
Fortunately for you, we’ll examine a couple of the most popular 2JZ-GE turbo conversion kits and go through their advantages and disadvantages.
The cost of a 2JZ
A race-ready 2JZ-GE engine typically costs $50,000 to construct. This special engine is utilized just in racing and is capable of producing 500 horsepower.
All of this is to suggest that these are pricey engines designed for race vehicles rather than the recreational driver.
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What Lexus has a 1JZ engine?
This 2002 Lexus IS300 had mismatched bodywork, some off-road scars, and an ambitious new owner with a head full of ideas before it was powered by Toyota’s venerable workhorse 1JZ and before it appeared tidy enough to win a few awards at a local car show.
What kind of boost can a 2JZ GE take?
Since the 2JZ-GE has a 10:1 compression ratio, we advise against using more boost than 7-8 PSI before you have to make adjustments to ignition timing, for example.
To get the most out of your setup right immediately, especially if you intend to run more than 56 PSI, we always advise choosing an updated FMIC.
Once you start thinking about exceeding 350400 WHP, you should start thinking about upgrading your fueling systems, such as the pump and injectors.
The 2JZ-stock GE’s compression will also probably only allow you to reliably produce 400450 WHP before you need to start thinking about improvements like a thicker head gasket.
Naturally, there will be a lot more to think about if you have big-power aspirations.
Despite the fact that a number of owners have enjoyed 800 WHP from the factory rods and pistons for a while, we’d advise changing them just to be safe.
What 2JZ engine is the best?
19 stars have been awarded to the 1JZ-GTE. 20 stars have been awarded to the 2JZ-GTE. The 2JZ-GTE comes out on top! Both engines are excellent; however, the 2JZ-GTE has certain advantages due to its displacement, while the 1JZ-GTE has advantages due to its somewhat lower price. Both engines are quite similar in terms of performance out of the box and tweaking possibilities. You’ll be on to a winner if you can get your hands on one of these engines.
With that said, a winner must be declared, so congratulations. 2JZ-GTE You *just* edged out your older brother for first place.
- x x 19 1JZ-GTE
- x x 20 2JZ-GTE
What makes 2JZ so strong?
Why is the Toyota 2JZ inline-6 engine a renowned engine in the automobile industry? A brand-new video delves deep into the engine’s internals and explains why it’s so perfect for producing significant power with stock internals.
The engine in the video is essentially the same engine that was in the last Toyota Supra, which is from Papadakis Racing. Its variable camshaft timing on the intake comes from a Toyota Aristo, also known as the Lexus GS in the United States. The remainder of the movie essentially demonstrates how the engine was disassembled, but while doing so, we can see what makes the engine unique. We may thank Japan’s bubble economy for the over-engineered, extraordinarily long-lasting engines that the auto industry produces.
The 2JZ engine is quite durable to begin with because it has a cast-iron block and a closed block. The engine is equipped with bucket-type lifters, which are highly dependable but don’t fit larger camshafts effectively. The number of moving parts is significantly less than, say, a rocker arm system. The head gasket itself appears to be in decent condition for an engine that has been in use for more than 20 years when the head is removed.
Toyota equipped the 2JZ with extremely durable head gaskets and a closed block design, which contributes to the problem. The absence of water openings all around the cylinders makes them incredibly durable. Because of this, tuners can extract a lot of power and boost from the standard internals. Three layers of steel make up the multi-layer head gasket itself. The construction helps create a very tight seal around the cylinder and prevents the gasket from blowing.
For the mechanical types, the rest of the film is pure zen, so relax and take in the teardown above.