The JZ series is one of the most famous in the Toyota ICE line. They are very popular among tuners, as they have good, not fully disclosed potential. One of these motors is the aspirated 1JZGE, manufactured by Tahara Plant.
The naturally aspirated 1JZ GE engine is very popular with tuners. This is a motor with undisclosed potential, its power can be increased up to 500 horses
Description of the engine 1JZ GE
The inline-six 1JZ GE is the successor to the 1G engine. It began to be produced in 1990. The first generation was equipped with a distributor, after restyling, coil ignition was installed. Since 2003, the engine has been supplanted by the more advanced 4GR-FSE.
1JZ GE involved: cast iron block, 2 camshafts, timing belt. A broken belt does not bend the valve, which prolongs the life of the power unit. There are no hydraulic lifters on the engine. The valves must be adjusted manually, every 50 thousand km of track, using special adjusting washers. The ICE device is simple, even a beginner can figure it out.
In 1996, the 1JZ GE engine underwent a restyling. The manufacturer has modernized the cooling and gas distribution systems, changed the cylinder head for the engine. The modernization introduced the VVTi system, increased the compression ratio. Ignition coils appeared instead of a distributor. The power of the modernized aspirated was 200 liters. With.
The VVTi system was introduced to the motors after a 1996 restyling. This is a unique Toyota development of a gas distribution mechanism, which means an intelligent change in valve timing
Service regulations 1JZ GE
Overhaul in the 1JZ GE engine occurs not earlier than 350 thousand mileage, but subject to competent and timely service. Below is an example scheme, service regulations:
- The oil must be changed every 10 thousand kilometers. On cars that are operated too actively, the oil change in the engine should be halved. The lubricant volume is 4.5 liters. In case of partial replacement, when the lubricant is not completely removed from the system, it is enough to fill in 4.2 liters. This is the type of oil to be poured into the crankcase - formulations with SG / SJ approval. SAE viscosity parameters: 5W-30 / 10W-30;
- Every 50 thousand km of run according to the manual, check the valve clearances;
- After the 40 thousandth run, the manufacturer recommends changing the air / fuel filters, antifreeze. On front-wheel drive cars, the volume of refrigerant is 7 liters, on all-wheel drive cars - 7.6 liters;
- Change the spark plugs in the range of 20-100 thousand kilometers. The following models are installed on this motor: NGK BKR5EP11 and Denso PK16R11;
- Replace the timing belt every 100 thousand kilometers. This is a passport recommendation, but in fact, the replacement time should be reduced to 60-70 thousand km. It is important to inspect the belt regularly, often. The inner / outer parts must be free of cord delamination, stripping and other damage. It is also important to check the tension roller: when pressing the belt with a force of 98 N, the tensioner should move down, and the belt should not slide off the pulley.
Also, the balancing belts, the ignition system, and the cylinder head should be regularly checked.
Oil is poured into the 1JZ GE engine strictly according to the manufacturer's recommendations. The table shows the viscosity parameters and the amount of grease to be poured.
Fault overview 1JZ GE
The motor is considered reliable, but malfunctions, one way or another, arise over time. Let's consider the most famous, common problems:
- Launch problems. Usually the cause is related to the spark plugs. It is necessary to check them, clean or replace if necessary. It is important to remember that the Toyota engine is afraid of the cold and frequent washes;
- Troenie, unstable work at different speeds. Troenia also due to flooded candles. It also happens through the fault of the driver, who forgets to warm up the engine well in winter. As for the unstable rpm, the reason must be sought in the VVTi valve, the XX sensor, the throttle valve. The engine will work again as new after flushing the listed parts;
- Increased oil and fuel consumption. Typically, the first malfunction occurs due to a faulty oxygen sensor or clogged filters. The oil intake appears over time. On an old engine, it's time to change the valve stem seals, rings, or do decarbonization;
- Increased noise. It looks more like a crack, caused by a small clutch resource. Unadjusted valves and connecting rod bushings can also knock. In some cases, this can be due to the idler roller bearing.
For the most part, problems with the 1JZ GE engine do not occur until the 80,000th run. A pump, a viscous coupling, a gasoline pump fall into the risk zone from parts. Also, problems often arise for owners who do not know what kind of oil should be poured into the engine.
The viscous coupling of the 1JZ GE engine often deteriorates. Its malfunction can be determined by the traces of antifreeze under the car.
Tuning options 1JZ GE
Jayzet, as mentioned above, has untapped potential. The best way to increase its power is to use boost. By converting 1JZ GE into a turbo version, the task will not be solved, since their blocks differ in the sizes of oil channels and nozzles. And it is much more expensive than just buying a modified contract analogue of the 1JZ GTE.
Boostup is exactly what you need for effective aspirated tuning. A Valbro 255 pump is installed, the catalyst is removed, the exhaust system is redesigned for 3-diameter pipes. It will be a complete exhaust without any constrictions. The air is drawn in cold, which allows the pressure of the ECU to be increased to 0.9 bar. Next, the Blitz brain boost or its analogue, a controller, Blow-Off and an intercooler are installed. In this case, the engine power is increased by 100 hp. With.
Walbro 255 fuel pump fits more efficient injectors, pumps more fuel and fully meets tuning requirements
If you want to increase the power to 500 liters. with., you will need to order a Null-system based on Garrett, upgrade the radiators. Be sure to use reinforced fuel hoses, a high-performance injector and a muffler already on the 3.5-inch pipe. Everything is configured on APEXI or AEM.
It is possible to increase the power by another 200-400 horses, but it is not recommended, as the engine resource will decrease. Such tuning is possible by installing forged reinforced connecting rods, 1000 cc injectors and powerful boost.
List of car models
The 1JZ GE engine was installed from the factory on the following Toyota models:
- Crown;
- Mark 2;
- Mark 2 Blit;
- Supra;
- Brevis;
- Chaser;
- Proace;
- Cresta;
- Soarer;
- Tourer;
- Verossa.
List of modifications 1JZ GE
2 main modifications of this engine are known:
- The 1JZ-FSE D4 is a direct injection powerplant that develops 200 hp. With. The engine was produced in the period 2000-2007;
- The 1JZ-GTE is a turbocharged version, operating at first on two turbines. Then, after the 1996 modernization, only one turbine was left, the VVTi system was added, and the compression ratio was increased to 9.
The power of the modified analogue 1JZ-FSE D4 is the same as that of the atmospheric. The turbocharged version of the 1JZ-GTE has 80 hp higher. With.
Specifications 1JZ GE
The characteristics of the engine are shown in the table:
| Production | Tahara plant |
| Engine brand | 1JZ GE |
| Years of release | 1990-2007 |
| Cylinder block material | cast iron |
| Supply system | injector |
| A type | inline |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 71.5 |
| Cylinder diameter, mm | 86 |
| Engine displacement, cubic cm | 2492 |
| Engine power, hp / rpm | 200 h.p. (6000 rpm) |
| Arrangement of cylinders | in-line, longitudinal |
| Number of valves | 24 (4 per cylinder) |
| A type | petrol, injection |
| engine's type | aspirated |
| Ignition system | Trambler or ignition coils (after 1996) |
| Fuel | 95 |
| Environmental standards | ~ Euro 2-3 |
| Engine weight, kg | 207-217 |
| Fuel consumption, l / 100 km (city / highway / mixed) | 15/9.8/12.5 |
| Oil consumption, gr. / 1000 km | up to 1000 |
| How much oil is in the engine, l | 5.1 (1JZ-GE Crown 2WD 1995-1998) 5.4 (1JZ-GE Crown 2WD 1998-2001) |
In the world of motorsport, the Toyota JZ series engines are legend, forever inscribed in history. It's no joke, many sports teams, both amateur and professional, still use engines that were developed at the turn of the 80s and 90s. Legends tell about "jayzets" - both in terms of endurance and indestructibility. And the widespread use of motors has made them very affordable. Even nowadays, buying a JZ in Japan and tweaking a little is perhaps the cheapest way to build an engine for a sports car. Why the JZ series motors managed to become so popular, we will tell in this article.
In the photo - 2JZ-GTE
Story
The progenitor of the series, 1JZ-GE, appeared in 1990. Inline six with a volume of 2.5 liters gave out 180 "horses" and 235 Nm of torque(at 4800 rpm), had two camshafts, a timing belt drive, a cast iron block and an aluminum cylinder head. In 1995, the engine was slightly modified: the compression ratio increased, phase shifters appeared, the cooling and ignition systems changed. Power has grown to 200 h.p. With a slight modification, the engine was used on new cars until 2007. The naturally aspirated engine is used by Toyota mainly on ordinary civilian cars, it provides a combination of high power and easy operation. The motor quickly became popular both in Japan itself and in the United States, where Toyota was actively exporting its products at that time.
For sports cars, the company has prepared another modification - 1JZ-GTE. They also put on civilian models, but with a serious surcharge and only on expensive configurations. Its volume was the same as that of GE, moreover, the block itself did not fundamentally differ from the "aspirated" (the main difference was in the more "powerful" pistons), the other was the cylinder head, but, of course, the main difference was in availability. It was supported by two CT12A compressors installed in parallel. For the turbocharged version, the compression ratio was slightly reduced, but still, even in the standard version, it was possible to achieve a solid increase in power - at its peak, the engine produced 280 hp, and the torque has grown to 363 Nm at 4800 rpm.
Even the first version of the motor was not bad, although it did have some overheating problems. But the company quickly fought them. In 1996, together with the aspirated version, Toyota also upgraded the "supercharged" version. The cylinder head was changed, the cooling and ignition systems were revised, the infinitely variable phase control was introduced, and two small turbines were replaced with one large one. The official power did not grow, but many minders believe that the engine went over 300 "horses", just according to the then rules in Japan it was impossible to build more powerful motors. In any case, the torque increased after restyling, which had a positive effect on the dynamics. It was in this form that the 1JZ-GTE began to forge fame on the racing tracks.
Everything would be fine, but the main competitor Toyota Nissan also had a good sports engine RB26DETT with a capacity of 280 hp, 1JZ-GTE was difficult to compete with.
Toyota got thoughtful and showed the world 2JZ. Conceptually and constructively, it was very close to 1JZ - all the same in-line six, cast-iron block, aluminum cylinder head, only the volume of 3 liters. Moreover, the diameter of the cylinders coincided with 1JZ, the volume was increased by increasing the piston stroke. The engine became "square" - the diameter and piston stroke were 86 mm each.
As in the case of 1JZ, Toyota made two modifications of the "two" - 2JZ-GE and 2JZ-GTE. As you might guess, the first was atmospheric, and the second was turbocharged. The first passport capacity was equal to 220 h.p. (maximum torque 304 Nm), the second 280-320 h.p. depending on the modification (the maximum torque was very solid 451 Nm). The attentive reader must have noticed that the 1JZ-GTE had the same 280 hp, why didn't the larger unit have an increase? It happened, but, again, the Japanese market had a 280 hp limit for a long time. The fact that the engine can do more can be judged by the American market, where the engine was certified with 320-350 "horses".
In the photo 2JZ-GTE
The history of modifications of the "two" is completely identical to the "one" - in the mid-90s, both of its modifications received a modified cylinder head, phase shifters and a new ignition system, this did not increase the power, but the torque grew.
In 2000, both engines were modified with direct fuel injection. The engineers hoped that the motors would become more economical while maintaining the same power. But the design with a high-pressure fuel pump has become more capricious than the base engines, it has a strong dependence on the quality of the fuel, access to spark plugs has worsened, and overall reliability has decreased. Yes, fuel consumption has decreased, which was to the liking of ordinary users, but tuning enthusiasts and "sportsmen" prefer conventional modifications, as they are less problematic.
Motors in everyday use
Depending on the configuration and sales market, the first and second "jays" were installed on Toyota Mark II, Toyota Progres, Toyota, Toyota Crown, Toyota Brevis, Toyota, Toyota Verossa and some models under the Lexus brand. All engines were always installed longitudinally and were designed for rear or all-wheel drive. The basic transmission was considered an automatic transmission, but the sports versions could be equipped with a 5- or 6-speed manual. Manual transmission, by the way, is not enough for civilian cars; according to many users, the 4-speed "automatic" cannot fully reveal the potential of the engine.
Most cars with JZ series motors in our country are right-hand drive cars from the Japanese market. For normal operation, models with atmospheric engines are most often chosen, they are cheaper and a little simpler. The resource of the engines is great. If you regularly change the oil and service the engine, then before the banal replacement of rings, the engine leaves 300-350 thousand kilometers, and the time usually comes with more than half a million runs.
According to the documentation, motors should run on 95th gasoline, but in Russia many drivers use 92nd gasoline in aspirated engines without any problems. The main thing is that the fuel is of high quality. Motors tolerate low temperatures and mileage well in our country, although they cannot be called economical - even in a quiet driving mode, less than 10-11 liters in mixed modes does not work. And turbocharged versions, yes with active driving, easily eat 20 liters or more.
Tuning possibilities
Motors of the 1JZ and 2JZ series have gained fame not only as serial units, but also as blanks for tuning projects. The secret lies in the huge margin of safety that Japanese engineers put into the motors. The engines are tuned up to 1000 hp, while some of the parts remain from stock engines - an amazing fact.... There’s no other engine that’s capable of this. Due to the similar design, 1JZ and 2 JZ are tuned according to the same scheme, adjusted for different volumes. "Two" due to the additional 500 "cubes" is more powerful, but the motor itself is initially more expensive, so many projects are made on 1JZ - in terms of price / power ratio, this is often cheaper
Of course, not all tuning options for "jayzets" are mega-radical, but the owner of these motors always has a choice. There are turbo kits for naturally aspirated versions of engines, but tuning professionals say that this is not the most rational option. It is much cheaper and easier to buy a contract version of the GTE than to install the turbine on "atmospheric", so the main tuning experts prefer to initially work with the GTE.
Receive an increase of 50 "horses" It is possible to simply increase the boost from 0.7 to 0.9 bar, replace the exhaust with a direct-flow one and install a more efficient one. If you change the ECU, use a large intercooler and a large cooling radiator, you can raise the boost pressure to 1.1-1.2 bar, which will give 380-450 horsepower... At the same time, the turbine and engine elements can be left native, they will work at the limit of their capabilities, but with moderate operation they will last a long time. By racing standards, of course.
Turbo kit HKS2835 on 1JZ GTE - 420 HP
For getting 500-600 HP with "jayzets" already have to invest properly in tuning. On an amateur level, few people get it. We need other nozzles, a turbine, a gasoline pump, increase the performance of cooling radiators, and install "evil" camshafts. It would be nice to change the pistons and connecting rods, although the regular ones at this power will be able to work for some time. The most ambitious projects go up to 1000 hp, but there the volume of alterations turns out to be large, although the cylinder block is left native in any tuning - it can withstand even such an increase in power.
Installed turbo kit for 1JZ-GTE - 500 hp
Reasonable price of the base motor, a wide range of tuning parts, the ability to vary the "depth" of modifications and a large design margin - these are all the secrets of the popularity of modifications 1JZ and 2JZ. New motors have not been released for a long time, but in Japan there are many contract options that are ready to serve for the benefit of motorsport.
"Poltorashka"
In the topic of tuning JZ engines, a kit is often used, which in the driving environment will receive the nickname 1.5JZ. The motors of the first and second series are well unified, which allows different manipulations between them. The most popular option is when a cylinder head from the first is placed on a three-liter block from the second JZ. The diameter of the combustion chambers is the same, oil and antifreeze channels will require minor modifications, but the amount of alterations is small.
Why fence such a monster? For fans of maximum overclocking, a three-liter block is preferable, it is easier to remove more power and torque from it. However, the cylinder head from 1JZ seems to many minders to be more durable and simpler. In addition, it is noticeably cheaper than the native 2JZ. For those looking to meet a certain budget, this option makes sense.
Minuses
Even such popular and legendary motors have their drawbacks. Among the mechanics are:
1. Lack of hydraulic lifters... Both motors have valves that are adjustable with washers. Adjustment is necessary every 80-100 thousand kilometers. Not that the absence of "" affects the power, but it makes maintenance a little more laborious. For "athletes" this, of course, is not a problem, but for a stock motor, at least a small, but a minus.
2. Weak timing belt tensioner... The resource of the belt is declared by the plant at the level of 100 thousand kilometers - not bad, but because of the tensioner it can break earlier. Fortunately, all engines, except for versions with direct injection, are "non-stick", when the belt breaks, the pistons and valves do not meet. But all the same, when problems with the timing belt occur due to the tensioner, it is unpleasant.
3. Resource small by the standards of the motor. The water pump runs 150-200 thousand kilometers. It is very good for other cars, but in "jayzets" it is usually the first to fail.
4. Not very reliable... The situation is about the same as with the pump, this element is just a little less reliable than everything else. Due to the pump and viscous coupling, the motors can overheat, especially during heavy loads.
5. Poor cooling of the sixth cylinder... The problem relates more to the atmospheric version of the 1JZ, especially before the modifications. Here, the engineers simply did not really calculate the lines for removing heat and the last cylinder overheated in the mode of constant loads. On other versions, the problem is much less pronounced.
Instead of output
The JZ series motors were lucky to be born at the right time. In the late 80s and early 90s, technologies in the automotive industry were able to rise to a high level, and marketers had not yet taken over the world. Engineers have learned to make very hardy and "indestructible" cars, and no one has yet told them that if the car falls apart after 100 thousand kilometers, the company will earn more money. Reliability was flourishing at that time not only with Toyota, many companies then created cars and units with a high resource, but even against their background, JZ engines stand out.
They were designed with an eye on a conservative approach and proven solutions, but at the same time they used new technologies - four valves per cylinder, an electronic injector, phase shifters. Even among the leaders of the auto world, it was not mainstream back then. Plus, of course, the design was initially very successful, in which there were almost no mistakes on the part of engineers. It would be developed further, but the motives and preferences in terms of designing cars in the 2000s became different. At the same time, JZ was allotted a lot of time: is it a joke 16 years on the assembly line.
Now there are no such engines. The formal successor has become aluminum, has lost its former resource and the former opportunity for tuning. Modern Toyota engines are lighter, more economical and more environmentally friendly, but will 1000 "horses" survive? Doubtful. Fans of engines of the past epoch are left with the resource of "jayzets", since they are not over yet.
All engines of the series have a DOHC gas distribution mechanism with 4 valves per cylinder, a working volume of 2.5 and 3 liters. The engines are designed for longitudinal placement for use with rear wheel drive or all wheel drive transmissions. Produced from 1990 to 2007. The successor was the GR engine line.
| Toyota | |
|---|---|
| Manufacturer | Toyota Motor Corporation |
| Engine code | JZ |
| A type | petrol, injector |
| Configuration | in-line, 6-cylinder. |
| Cylinders | 6 |
| Valves | 24 |
| Cooling | liquid |
| Valve mechanism | DOHC |
| Cycle (number of measures) | 4 |
| Media files at Wikimedia Commons | |
According to the Toyota marking system, the designation of Toyota JZ engines is deciphered as follows: the first number denotes the generation (1 - the first generation, 2 - the second generation), letters by number - JZ, the remaining letters - performance (G - DOHC valve timing with wide "performance" phases, T - turbocharging, E - electronically controlled fuel injection).
1JZ
The 1JZ engine has a displacement of 2.5 liters (2492 cc). Produced from 1990 to 2007 (last used on Mark II BLIT and Crown Athlete wagon). Bore 86 mm and stroke 71.5 mm. The gas distribution mechanism included 24 valves and two belt-driven camshafts.
1JZ-GE
The first naturally aspirated (1990-1995) 1JZ-GE produced 180 hp. With. (125 kW; 168 bhp) at 6000 rpm and a torque of 235 Nm at 4800 rpm. After 1995, the 1JZ-GE produced 200 liters. With. (147 kW; 197 bhp) at 6,000 rpm and a torque of 251 Nm at 4,000 rpm. Compression ratio 10: 1.
The first generation (until 1996) had a distributor ignition, the second - a coil ignition (one coil for two spark plugs). In addition, the second generation was equipped with a VVT-i variable valve timing system, which made it possible to smooth the torque curve and increase power by 20 hp. With. Like all JZ engines, the 1JZ-GE had a longitudinal arrangement on rear wheel drive vehicles. The engine was standardly aggregated with a 4- or 5-speed automatic transmission, a manual gearbox was not installed. As in the rest of the engines in the series, the timing mechanism is driven by a belt; the engine also had only one drive belt for attachments.
Characteristics of 1JZ:
Production: Tahara Plant
Engine make: Toyota 1JZ
Years of issue: 1990-2007
Cylinder block material: cast iron
Power system: injector
Type: in-line
Number of cylinders: 6
Valves per cylinder: 4
Piston stroke, mm: 71.5
Cylinder diameter, mm: 86
Compression ratio: 8.5; 9; 10; 10.5; eleven
Engine displacement, cubic meters cm: 2492
Engine power, hp with. / about. min: 180/6000; 200/6000; 280/6200; 280/6200
Torque, Nm / rev. min: 235/4800; 251/4000; 363/4800; 379/2400
Fuel: gasoline, octane number 98
Environmental standards: ~ Euro 2-3
Engine weight, kg: 207-230
Fuel consumption, l / 100 km (for Supra III)
City: 15
Track: 9.8
Mixed cycle: 12.5
Oil consumption, gr. / 1000 km: up to 1000
Engine oil: 0W-30; 5W-20; 5W-30; 10W-30
The amount of oil in the engine, l: 4.8
Oil change interval, km: 10000
Engine operating temperature, city .: 90
- Toyota Mark II / Toyota Chaser / Toyota Cresta
- Toyota Brevis
- Toyota Soarer
- Toyota Verossa
1JZ-GTE
The first generation 1JZ-GTE was equipped with two CT12A turbochargers (twin turbo), located in parallel and an intercooler mounted under the wing. With a compression ratio of 8.5: 1, the factory engine produced 280 hp. With. (210 kW) at 6200 rpm and 363 Nm at 4800 rpm, respectively. The bore and stroke were the same as the 1JZ-GE: 86 x 71.5 mm. Parts of the engine, such as the timing belt cover, bore the Yamaha logo, indicating their involvement in the design of the cylinder head. In 1991, the 1JZ-GTE was installed on a completely revamped Soarer GT.
The production of the second generation engines began in 1996. The engine features a VVT-i system, an increased compression ratio (9.1: 1) and one larger CT15B turbo. There are also new titanium nitride coated valve gaskets for less camshaft friction. These changes have smoothed out the torque curve and dramatically shifted the rpm downward, as well as reduced fuel consumption.
1JZ-GTE was aggregated with a 4-speed automatic (A340 / A341) or 5-speed manual transmission (R154).
This engine was installed on the following vehicles:
- Toyota Mark II / Chaser / Cresta of modifications 2.5 GT TwinTurbo (1JZ-GTE) (JZX81), Tourer V (JZX90, JZX100), IR-V (JZX110), Roulant G (Cresta JZX100)
Constant work on improving equipment in all areas leads to the fact that even reliable and good devices, in particular Toyota engines of the M series for passenger cars, have to be changed to units that are more powerful, more economical, etc. 1jz-ge engines change the M Toyota lineup.
This engine is manufactured by the Japanese company Toyota. The engine is in-line, has 6 cylinders, runs on gasoline, has changed the line of M engines. All 1jz modifications have a DOCH gas distribution mechanism with four valves per cylinder (24 valves in total). Available in volumes of 2.5 and 3.0 liters.
Automotive power units 1jz are mounted longitudinally for rear-wheel drive and all-wheel drive vehicles.
The first jz series engine came out in 1990. The last one was in 2007. After 2007, the line of Toyota JZ engines was replaced by the new GR V6 series.
Explanation of designation of modifications JZ:
- The number 1 indicates the generation number (there are 1 and 2 generations).
- Letters JZ - Japan, Domestic Market.
- If there is a letter G - DOCH timing mechanism.
- If there is a T - turbocharging.
- If there is the letter E, then the ICE is electronically controlled.
Specifications 1jz-GE / GTE / FSE with a volume of 2.5 liters.
| Manufacturing plant | Tahara plant |
| Unit brand | Toyota 1JZ |
| Years of release | from 1990 to 2007 |
| Cylinder block material (BC) | cast iron |
| Fuel supply system | injector |
| Arrangement of cylinders | inline |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke length, mm | 71.5 |
| Cylinder diameter, mm | 86 |
| Compression ratio | 8.5 9 10 10.5 11 |
| Motor volume, cm 3 | 2492 |
| Engine power, hp / rpm | 170/6000 200/6000 280/6200 280/6200 |
| Torque, Nm / rpm | 235/4800 251/4000 363/4800 379/2400 |
| Fuel | 95 |
| Environmental standards | ~ Euro 2-3 |
| Engine weight, kg | 207-217 |
| Fuel consumption, l / 100 km (for Supra III) - town - track - mixed. |
15.0 9.8 12.5 |
| Oil consumption, gr. / 1000 km | up to 1000 |
| Engine oil with characteristics | 0W-30 5W-20 5W-30 10W-30 |
| The volume of oil in the internal combustion engine in liters |
|
| How long does it take to change the oil, km | 10,000 km of run, but better after 5,000 |
| Engine operating temperature, deg. | 90 |
| Engine resource, thousand km - according to the plant - on practice |
|
| Tuning - potential - without loss of resource |
|
What cars was it installed on |
Toyota crown Toyota Mark II Toyota Supra Toyota Brevis Toyota Chaser Toyota Cresta Toyota Mark II Blit Toyota Progres Toyota Soarer Toyota Tourer V Toyota Verossa |
JZ engine modifications
All there are 5 models of such engines:
1JZ
The volume of the internal combustion engine is 2.5 liters (2495 cm 3). Cylinder diameter 86 mm. Piston stroke length 71.5 mm. Timing belt drive. The engine has 24 valves. Number of camshafts - 2. Produced from 1990 to 2007.
From 1990 to 1995, these engines developed 180 hp. or 125 kilowatts at a crankshaft speed of 6000 rpm. The maximum torque was 235 N * m at a crankshaft rotation speed of 4800 rpm.
After 1995, such engines developed a power of 200 hp. or 147 kW at a crankshaft speed of 6000 rpm. The maximum torque was 251 N * m at 4000 rpm. Compression ratio in the cylinders in a ratio of 10: 1.
Until 1995, the 1st generation of engines came with distributor ignition. After 95 - the 2nd generation of engines came with coil ignition (one coil for two spark plugs). They have already begun to install the vvt-i valve timing system. This resulted in a smoother rise in torque and an increase in operating power by 20 hp.
The engines were installed longitudinally on rear-wheel drive vehicles. Cars with such engines were equipped with an automatic gearbox with 4 or 5 speeds. A manual gearbox was not installed on cars with JZ engines. The drive of the parts of the gas distribution mechanism is belt.
1jz-GE was installed on the following Toyota models:
- Toyota Mark II (Mark 2) / Toyota Chaser (Shaser) / Toyota Cresta (Cross)
- Toyota Mark II Blit
- Toyota Progres
- Toyota Crown
- Toyota Crown Majesta
- Toyota Brevis
- Toyota Progres
- Toyota Soarer
- Toyota Verossa
1JZ-GTE
The first generation engines had two CT12A (Twin Turbo) turbochargers located in parallel under one common intercooler. The compression ratio in the cylinders was 8.5: 1. Internal combustion engine power 280 HP or 210 kW at 6200 rpm. The torque (max) moment was 363 N * m at 4800 rpm. Overall dimensions of pistons and cylinders, piston stroke length are the same as for the previous model 1jz-ge. 
The Yamaha logo was applied to the belt guard from the factory, and it means that the production was jointly with this company. Since 1991, 1jz-gte engines have been installed on the Toyota Soarer GT (Toyota Soarer).
The second generation of produced engines began in 1996. The engine was already equipped with the VVT-i system, the compression ratio was significantly increased and amounted to 9.1: 1. The turbocharger was one, but larger. Improved valve gaskets with titanium nitrite coating were also installed, which reduced the frictional force with the cams of the gas distribution mechanism.
The 1JZ-GTE engine was installed on the following cars:
Toyota Mark II / Chaser / Cresta of modifications 2.5 GT TwinTurbo (1JZ-GTE) (JZX81), Tourer V (JZX90, JZX100), IR-V (JZX110), Roulant G (Cresta JZX100)
Toyota Soarer (JZZ30)
Toyota Supra (JZA70)
Toyota Verossa
Toyota Crown (JZS170)
1JZ-FSE
In 2000, 18 years ago, a new modification of the 1JZ series appeared. This engine was with forced petrol injection - D4. The power of the unit was 197 hp, the torque was 250 N * m. The model can operate on a lean mixture in a ratio of 20: 1 to 40: 1. This reduces fuel consumption.
2JZ-GE
Produced since 1991. Engine volume 3.0 liters. The cylinder diameter is 86 mm, the piston stroke length is also 86 mm.
The 2Jz-ge 1st generation engine had the usual DOHC timing mechanism with 4 valves per cylinder. Power - 220 hp. at a crankshaft rotation speed from 5800 to 6000 rpm. The maximum torque is 298 N * m at 4800 rpm.
2Jz-ge of the 2nd generation, a VVT-i valve timing system was installed, a DIS ignition system with one coil for 2 cylinders. Power increased by 10 hp. and was 230 hp. at the same 5800-6000 rpm.
Installed on the following models:
- Toyota Altezza / Lexus IS 300
- Toyota Aristo / Lexus GS 300
- Toyota Crown / Toyota Crown Majesta
- Toyota Mark II
- Toyota Chaser
- Toyota Cresta
- Toyota Progres
- Toyota Soarer / Lexus SC 300
- Toyota Supra MK IV
2JZ-GE
The last model in this JZ series was produced from 1991 to 2002. The power unit was 280 hp. at a crankshaft rotation speed of 5600 rpm. Max torque - 435 N * m.
The VVT-i valve timing system has been installed in this modification since 1997. The torque was increased to 451 N * m.
The Japanese government has limited the engine power of passenger cars for use in its country to 280 hp. Export versions of engines and machines for the United States had a capacity of 321 hp.
During this time, Nissan successfully won the FIA and N Touring Car car races with Nismo's RB26DETT and RB26DETT N1 engines. And the Toyota 2JZ-GE engine became their competitor.
Toyota 2JZ-GE was equipped with an automatic and mechanic gearbox:
- Automatic transmission 4-speed Toyota A341E
- Manual transmission 6-speed Toyota V160 and V161 developed in collaboration with Getrag.
The engine was installed on cars:
- Lexus GS (JZS161);
- Toyota Aristo V (JZS161);
- Toyota Supra RZ (JZA80).
Repair and maintenance
The engines are designed to operate with fuel - AI-92 - AI-98. On 98th and eighth gasoline, it happens that it starts badly, but it increases performance. 2 knock sensors are installed. There is no starting nozzle, the ICE crankshaft position sensor is located in the distributor.
The platinum plugs must be replaced every 100,000 km, but the top of the intake manifold must be removed to replace them.
The volume of engine oil is normal - 5 liters. The volume of the coolant is 8 liters. A standard fan is installed on the internal combustion engine shaft.
A vacuum air flow meter was installed. To replace the oxygen sensor, you will have to go through the engine compartment on the side of the exhaust manifold.
Depending on the manner of operation, a thorough repair of the engine has to be done by someone after 300,000 km of run, to someone 350,000 km of run.
The main part in such engines that often breaks down is the timing belt tensioner. The oil pump (), which is similar to the VAZ one, also sometimes fails. Average fuel consumption is 11 liters per 100 kilometers.
Video
This video is about all modifications of Toyota Motors JZ engines: 1JZ-GE, 1JZ-GTE, 1JZ-FSE, 2JZ-GE, 2JZ-GTE, 2JZ-FSE.
How to replace spark plugs on JZ motors.
A Toyota JZ-GE engine with an automatic gearbox was installed on the Russian Volga car. The video shows a competition between the tuned Volga and Toyota Camry.
Swap engine 2JZ-GE.
In 1990, the Toyota concern began to use engines of a new series - JZ on its cars. They replaced the M-series, which many experts still consider the most successful in the entire history of this company. But progress does not stand still - the new engines were conceived as more durable and reliable, moreover, they were supplied with a whole list of additional gadgets designed to protect the planet's ecology from the harmful emissions of an ever-growing number of cars. Several years have passed and now in 2000 an even more perfect creation appeared in this series, the 1JZ-FSE engine operating on D-4 technology, that is, with direct injection of fuel under high pressure, similar to how it happens in diesel units.
Of course, the petrol engine does not receive any power gain or torque increase, but fuel economy and improved traction at low revs are guaranteed.
ATTENTION! Found a completely simple way to reduce fuel consumption! Don't believe me? An auto mechanic with 15 years of experience also did not believe until he tried it. And now he saves 35,000 rubles a year on gasoline!
But already in 2005, the company stopped producing the 1JZ-FSE, and the last new cars equipped with it were sold in 2007.
Operational problems
If you strictly adhere to the instructions and take care of the machine, then there should be no significant problems with it. But there are a few unpleasant moments:
- Poor accessibility of spark plugs (in order to somehow level this drawback, the manufacturers of the 1JZ-FSE 4d engine had to install "platinum" ones on the central cylinders);
- All attachments have a common drive belt with a hydraulic tensioner, moreover, made in the USA, whose products are much inferior in durability to their native Japanese;
- High sensitivity to moisture ingress;
- In this engine, the plunger pair of a high-pressure pump can quickly fail due to significant differences in the composition of Russian and Japanese fuel, which is used to lubricate it.
The fact is that the lubricating properties of Japanese gasoline exceed that of Russian gas more than eleven times due to the use of special additives. Therefore, the owners of cars equipped with a 1JZ-FSE injection pump engine quite often "get" to replace the pump (about USD 950) and injectors (about USD 350 each). These costs can be called dream management subscriptions.
Specifications 1JZ-FSE
If the drive belt or chain breaks down, the valves collide. The manufacturing company recommends using gasoline with an octane number of 95 as fuel, but the experience of operating cars with a Toyota 1JZ-FSE engine by domestic motorists suggests that 92 will do without complications.
The main differences in the design of the unit from the engine with conventional injection
- The high pressure fuel pump is capable of creating an operating pressure of up to 120 bar, while the electric pump of an injection engine is only up to 3.5 bar.
- Vortex nozzles create fuel flares of various shapes - in the power mode - conical, and during the combustion of a lean mixture - a narrow one, shifted to the candle, moreover, throughout the rest of the volume of the combustion chamber, the mixture is super-lean. The torch is directed in such a way that the liquid fraction of the fuel does not fall either on the piston head or on the cylinder walls.
- The piston bottom has a special shape and there is a special recess on it, thanks to which the air-fuel mixture is redirected to the spark plug.
- FSE engines use vertically directed intake ducts that provide a so-called reverse vortex in the cylinder, sending the air-fuel mixture towards the spark plug and improving air filling of the cylinders (in conventional engines, this vortex is directed in the other direction).
- The throttle valve is controlled indirectly, that is, the accelerator pedal does not pull the cable, its position is only fixed by the sensor. The damper, on the other hand, changes position by means of a drive from an electric motor.
- FSE engines emit a lot of NO, but this problem is solved by using catalytic converters of the storage type in combination with traditional three-way catalysts.
Resource
We can only reliably talk about the size of the resource before the bulkhead, that is, until the moment when it becomes necessary to intervene, except of course, to replace the timing belts, in the mechanical part of engines of mass series. In most cases, this occurs at the third hundred thousand kilometers (approximately 200,000 - 250,000)... As a rule, it dispenses with replacing stuck or worn piston rings and valve stem seals. This is not yet a major overhaul, the geometry of the cylinders and pistons relative to their walls is, of course, preserved.
Is it worth buying contract engines
Contract 1JZ-FSE from Toyota Verossa
It often happens that our compatriots take a contract engine for a Toyota car. Let's see what it is. Such units are not just used ones, but legally dismantled from a car of the same brand, after it was written off or in an accident. It is in full working order, it just needs to be correctly installed and configured. By the way, such engines are supplied complete with all attachments, so that its installation on the new owner's car is quick and easy.
Usually abroad, cars that have been in an accident are written off due to their loss of presentation, but inside them there are quite a lot of well-preserved units and individual parts. In general, the purchase of such an engine will cost much less than repairing a native one. In addition, not a small guarantee is given for contract parts, which further popularizes this type of sales.
What car brands is installed on
Such units work on:
- Progres;
- Brevis;
- Crown;
- Verossa;
- Mark II, Mark II Blit.
