The first generation Lexus LS 400/Toyota Celsior introduced the 4.0 L; 242.1 cu in (3,968 cc) all-alloy 1UZ-FE in 1989. The engine was gradually released across a number of different models in the Toyota/Lexus lineup. With a bore and stroke size of 87.5 mm and 82.5 mm, the engine is oversquare by design (3.44 in3.25 in). [2] With features like 6-bolt main bearings and belt-driven quad-camshafts, it has proven to be a powerful, dependable, and smooth engine. The timing/cam belt also powers the water pump. Steel is used in the construction of the crankshaft and connecting rods. Hypereutectic pistons are used.
One of the few road-going engines with FAA approval for use in aircraft is the FV2400-2TC variant.
Its standard, original trim produces 191 kW (256 horsepower; 260 PS) of power and 353 Nm of torque (260 lbft).
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With lighter connecting rods and pistons and an improved compression ratio to 10.4:1, the engine had a minor revision in 1995 and now produces a maximum of 195 kW (261 horsepower; 265 PS) at 5,400 rpm and 365 Nm (269 lbft) at 4,400 rpm.
With the introduction of Toyota’s VVT-i variable valve timing system in 1997 and an additional 10.5:1 compression ratio increase[2,] output and torque were increased to 216 kW (290 hp; 294 PS) at 5,900 rpm and 407 Nm (300 lbft) at 4,100 rpm. 224 kW (300 horsepower; 305 PS) at 6,000 rpm and 420 Nm (310 lbft) at 4,000 rpm were the output ratings for the GS400.
The Ward’s 10 Best Engines list for 1998 to 2000 included the 1UZ-FE.
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In This Article...
Is the Lexus LS400 quick?
The maximum speed of the Lexus LS 400 is 155 mph. Even though that’s a rather high speed, the vehicle has a more than strong engine that can reach 60 mph in just 7.5 seconds.
When you purchase a Lexus, you pay for both great performance and opulent extras. The LS 400 has a comfortable leather inside, a top-notch sound system, and requires little maintenance.
Depending on the model year you purchase, several features and performances may be available. The features of late 1990s and early 2000s models may not be up to pace because they were built to a different standard of luxury. However, more recent models could really blow you away.
If you want to purchase a Lexus LS 400, make sure to have adequate auto insurance to safeguard your financial commitment. Luckily, Jerry makes it quicker and simpler than ever to locate the lowest prices on the vehicle insurance you require.
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The 1uz FE engine is reliable.
- A. You shouldn’t be overly concerned about the durability of the 1UZFE engine because it has a high mileage. If you recently purchased the engine, you should check its internal condition. The oil rocker cover on a 1UZFE engine that has been properly maintained typically has a golden hue, but you should replace the oil right away if you discover it has gone dark black and sludge-like.
- Do I need to take any precautions after purchasing a 1UZFE engine?
- A. An oil change for a 1UZFE engine is normally advised every 5,000 to 10,000 kilometers. With a 1UZFE engine, you definitely need to replace the oil more frequently than usual if you enjoy drifting or drag racing.
- A. A 1UZFE engine can produce between 256 and 300 horsepower when it leaves the factory, depending on the generation. The engine has been tweaked by racing aficionados to produce up to 800 horsepower, though.
- How often should the oil be changed in a 1UZFE engine?
- How trustworthy is the 1UZFE?
- A. A 1UZFE engine can easily survive over 200,000 miles, according to Consumer Reports. Although they only require routine maintenance, 1UZFE engines that have traveled more than twice that distance are still in good shape.
- How much horsepower can a 1UZFE support?
What kind of HP can a 1uz manage?
Let us first demonstrate what has been accomplished using a far-from-stock 1UZ-FE. The owner of this Ultima GTR chose a twin-turbo configuration in an unexpected engine swap. What happened? A staggering 982 horsepower on a Porsche 6-speed transmission!
Although turbo kits for 1UZs are more widely accessible than superchargers, they are still quite uncommon.
The pre-94 engines are your best option when adding a turbo. We are aware that they will inevitably grow more difficult to locate, therefore the ideal option to guarantee you have a solid foundation and reliability is to start by thinking about upgraded internals, especially if you’re striving for high power. Even on later versions, the factory internals should be able to produce up to 500 horsepower for moderate power.
If you have big-power objectives, the 1UZFE block is easily capable of producing 1,000 horsepower with the right setup, much like Toyota’s other excellent engines like the 2JZ. If you have or plan to, please let us know!
We would budget for a single-turbo kit (such the Garrett GT40 or VNT25), multi-layer steel head gaskets, a wastegate, a blow-off valve, a boost controller, oil lines, fuel injectors, and an upgraded ECU for a basic turbocharged configuration. We would anticipate seeing about 450 horsepower with these improvements, which should be secure even with the more recent stock internals. We would be pleased to exceed the 500hp range with forged pistons.
Which Lexus is a 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.
Which Lexus V8 engine is the best?
The 2UR-GSE V8 was only ever offered in a Lexus, even though it was officially made by Toyota as well. When the company started rolling out its ‘F’ series sports cars around the end of the early 2000s, beginning with the 2008 Lexus IS F, this 5.0L V8 was designed expressly to fulfil a high performance position at the brand.
After collaborating successfully with Yamaha to design the V10 engine used in the LFA supercar, Lexus once more looked to its neighbor to the south for the production of the 32-valve heads for the 2UR-GSE. When it was first made available in the IS F, the high-compression (11.8:1) V8 produced 416 horsepower and 371 lb-ft of torque. The same engine was used almost ten years later in the RC F coupe and the GS F mid-size sedan, where a compression bump added 51 more horsepower and a slightly smaller increase in torque. Even the 394 horsepower Lexus LS 600H full-size four-door used a hybrid V8.
The Lexus 2UR-GSE is now housed between the front fenders of the Lexus LC 500 coupe and convertible, where it produces 471 horsepower and 398 lb-ft of torque. It is the most powerful engine that Lexus has ever provided.
What exactly does LS400 mean?
The engine capacity is 400, and the LS stands for Luxury Sedan. The LS400 had its North American premiere in January 1989 at the Detroit auto show, although it wasn’t manufactured until May 1989 and didn’t go on sale until September 1989.
Are LS 460s trustworthy?
The Lexus LS460 has a 3.5 out of 5.0 reliability rating, which places it 10th out of 30 premium fullsize automobiles. It has moderate ownership expenses since the average cost of annual repairs is $767. Your LS460 may require a few more shop visits than other models since the frequency of repairs is higher than average but the severity of those problems is typical.
What Lexus is powered by a V8?
Since the luxury brand’s 1989 debut, Lexus has been known for its supple yet potent V8 engines. For more than 30 years, the Lexus lineup has been distinguished by sonorous eight-cylinder engines, which are still available in the current RC F, LC, and LC Convertible model lines. But why was this format picked, and why has it continued to be such a winning formula?
You may access all the links you need in this article to learn more about the engineering and technological innovations that went into creating Lexus’ two multi-award-winning V8 engine series.
How many HP can a 1UZ produce?
Consider forced induction once you’re prepared to move past some minor modifications to increase horsepower. The fact that the 1UZFE is a naturally aspirated engine means two things.
First off, these engines may be given a lot of power additions. A turbocharger or supercharger can be added to one of the most recent 1UZFE engines together with accompanying upgrades to increase its factory-rated output of 290 horsepower to a highly dependable 400 horsepower.
But there is a condition. When adding this type of improvement to a conventional normally aspirated engine, you need to be cautious. A 1UZFE turbocharger or supercharger kit cannot be installed and used immediately.
Yes, you must tune it, but in order for your car to handle the additional torque and power, you also need to replace other parts. To assist keep everything in working order, think about changing the fuel pump, intakes, exhaust valves, and even the spark plugs.
Turbochargers
One of the most economical methods to give your 1UZFE a ton of horsepower is to install a turbocharger, and there are many different models to pick from.
First, if you’re an experienced fabricator, you could buy a 1UZFE turbo kit and put everything in yourself. However, you should be aware that depending on the kind of car you drive, a different kit will be required.
A kit for a 1989 Lexus LS400 is probably not going to work on a 2002 Toyota Crown. Make sure you know what you’re obtaining before making any purchases because it has more to do with the intake and exhaust piping than the engine.
As an alternative, you might drive your vehicle to a company that specializes in performance work and have them handle it. Although this is a more expensive choice, it greatly reduces your stress.
Finally, even though some twin-turbo kits are available for 1UZFEs, you must exercise caution while using them. These kits typically produce too much horsepower, which over time might harm your engine’s internals.
Superchargers
You could choose to use a supercharger instead of a turbocharger if your vehicle has a 1UZFE.
The 1UZFE supercharger kits are a little more expensive, but they’re an excellent method to maximize the engine’s power.
It’s not impossible to observe an increase in horsepower of up to 50% if you install a supercharger and all the supporting parts! The stock third generation 1UZFE may therefore produce close to 435 horsepower.