Friction in the engine bmw m50 engine. BMW E34

From the very beginning, the BMW M50 engine was produced in two types: 2.0 liters and 2.5.

In the 91st year, the M50 replaced it. It was produced for a relatively short time, somewhere before 96, because thanks to the modification with an aluminum block, which was introduced in 1994, it received the M52 brand.

BMW M50 motor device

The M50 was installed from 1991 on the e34 model until the end of its production in this body, as well as on the e36 from the beginning to the 94th year. On the M50, in 1992, a gas distribution system was installed, which was called VANOS. The novelty was equipped only with the intake camshaft, which increased engine thrust at medium and low speeds, while not losing them at high speeds.

There is nothing special in the design, a six-cylinder engine with a cast iron block and an aluminum block head. Compared to the M20, from a technical point of view, it has stepped far ahead. The variable valve timing system was a 24-valve with two camshafts and with a drive that was carried out directly through hydraulic lifters. The camshafts were driven by a chain. And this means a completely electronic ignition system without a distributor (an ignition coil on each spark plug).

On the basis of the M50, engines for the M3e36 with a capacity of 240 horses and a volume of 3.0 liters were assembled. and for Alpina B3 - 250 "horses" from 3.0 liters. (model for the American market). The motor weighs approximately 136 kg (average weight).

Malfunctions of BMW M50 and M50tu engines

BMW M50 and M50tu engines proved to be the most reliable and successful engines of the automaker. However, with strong overheating, it distorts, the tightness of the gas joint is broken, and cracks form on the cylinder head. Excessive oil consumption, which is about 1 liter. per 1000 km (with correct operation), starts after 300-400 thousand km. run, and is often the cause of exhaust valve burnout, which, in some cases, can be accompanied by cracks formed between the valve seats.

There are manufacturers that produce water pumps with an impeller made of plastic, which often leads to the destruction of bearings and a violation of the seal, as well as the destruction of the impeller itself. Also, during repairs - incorrect installation of camshafts, as a result of illiterate actions of personnel. On older engines, you can often find failure of ignition coils, burnt out power ignition keys. Compared to the 40 series, the destruction of the liners is an order of magnitude lower. It is considered very common to connect the cylinder block with the oil filter cup, from under the pan gaskets, valve cover, front cover, and also along the dipstick ring.

For BMW M50 and M50TU engines with an electronic control unit DME and for MS 40 and MS 40.1, it happens that the fuel supply is turned off, i.e. the cylinders are turned off. In addition to repairs, in order to turn on the cylinders, it is also necessary to clean the memory. Usually these systems can easily withstand breakdowns associated with.

Compared to systems such as Motronic 3.1 and 3.3 (manufactured by Bosch), which are sensitive to DC malfunctions, SIEMENS ECUs are generally not repairable. BOSCH 413 (М 3.3.1) is also not very maintainable. In copies of the M50TU, which were released before the 94th year, there is a rumble of the BMW VANOS system. It is eliminated by simply replacing parts of the system with similar, but already designs, which were released after the 94th year.

BMW M50B25 engine reliability, problems and repair

In 1990, the popular inline-six BMW M20B25 was replaced by a new, much more advanced and powerful, called BMW M50B25 (popularly nicknamed "Stove"), from the new M50 family (the series also included M50B20, M50B24, S50B30, S50B32 ). The main difference between the M20 and M50 engines lies in the cylinder head; in the new engine, the head was replaced with a more advanced two-shaft, 24-valve with hydraulic compensators (valve adjustment is not threatened).

The diameter of the intake valves is 33 mm, the exhaust valves are 30.5 mm. Camshafts with a phase of 240/228 are used, a lift of 9.7 / 8.8 mm. And also an improved lightweight intake manifold is used. Bosch Motronic engine management system 3.1. The timing drive in the new M50 engines has also changed, now instead of a belt, a chain is used, the service life of which is 250 thousand km (as a rule, it runs more). In addition, individual ignition coils, an electronic ignition system, other pistons, lightweight connecting rods with a length of 135 mm are used. The size of the M50B25 nozzles is 190 cc.

Since 1992, M50 engines have received the well-known Vanos intake camshaft timing system, and such engines have become known as the M50B25TU (Technical Update). In addition, these engines use new 140 mm connecting rods and pistons with a compression height of 32.55 mm (38.2 mm on the M50B25).

The control system is replaced by Bosch Motronic 3.3.1. These power units were used on BMW cars with an index of 25i. Since 1995, the M50V25 engine began to be replaced by a new improved M52V25 engine, and in 1996 the production of the M50 series was completed.

BMW M50B25 engine modifications

  • M50B25 (1990 - 1992 onwards) - base engine. Compression ratio 10, power 192 hp at 5900 rpm, torque 245 Nm at 4700 rpm.
  • M50B25TU (1992 - 1996 onwards) - added a variable valve timing system at the Vanos intake, changed the connecting rod-piston group, installed other camshafts (phase 228/228, lift 9/9 mm). Compression ratio 10.5, power 192 HP at 5900 rpm, torque 245 Nm at 4200 rpm.
Production Munich plant
Engine brand M50
Years of release 1990-1996
Cylinder block material cast iron
Supply system injector
A type inline
Number of cylinders 6
Valves per cylinder 4
Piston stroke, mm 75
Cylinder diameter, mm 84
Compression ratio 10.0
10.5 (TU)
Engine displacement, cubic cm 2494
Engine power, hp / rpm 192/5900
Torque, Nm / rpm 245/4700
245/4200 (TU)
Fuel 95
Environmental standards Euro 1
Engine weight, kg 198
Fuel consumption, l / 100 km (for 320i F30)
- city
- track
- mixed.

11.5
6.8
8.7
Oil consumption, gr. / 1000 km up to 1000
Engine oil 5W-30
5W-40
10W-40
15W-40
How much oil is in the engine, l 5.75
When replacing pouring, l 4
Oil change is carried out, km 7000-10000
Engine operating temperature, deg. ~90
Engine resource, thousand km
- according to the plant
- on practice

-
400+

Tuning, hp
- potential
- without loss of resource
1000+
200-220 -
The engine was installed BMW 325i E36
BMW 525i E34


BMW M50B20 / M50B20TU engine

Characteristics of the M50V20 engine

Production Munich plant
Engine brand M50
Years of release 1990-1996
Cylinder block material cast iron
Supply system injector
A type inline
Number of cylinders 6
Valves per cylinder 4
Piston stroke, mm 66
Cylinder diameter, mm 80
Compression ratio 10.5
11 (TU)
Engine displacement, cubic cm 1991
Engine power, hp / rpm 150/6000
150/5900 (TU)
Torque, Nm / rpm 190/4700
190/4200 (TU)
Fuel 95
Environmental standards Euro 1
Engine weight, kg -
Fuel consumption in l / 100 km (for E36 320i)
- city
- track
- mixed.

11.2
6.7
8.6
Oil consumption, gr. / 1000 km up to 1000
Engine oil 5W-30
5W-40
10W-40
15W-40
How much oil is in the engine, l 5.75
Oil change is carried out, km 7000-10000
Engine operating temperature, deg. ~90
Engine resource, thousand km
- according to the plant
- on practice

-
400+
Tuning, hp
- potential
- without loss of resource

400+
190-200
The engine was installed

BMW M50B20 engine reliability, problems and repair

The smallest inline-six of the BMW M50 series (the family also includes the M50B24) was released in 1990 as a replacement for the outdated one. The main innovation here is the use of a new cylinder head with 4 valves per cylinder and two camshafts, as well as hydraulic lifters. Camshafts with a phase of 240/228, lift 9.7 / 8.8 are used. Diameter of inlet valves is 30 mm, outlet valves are 27 mm. The M50 uses a plastic intake manifold of a more advanced design.
Bosch Motronic 3.1 / Siemens MS40.0 control system.
Among other things, in the M50B20 the timing belt drive gave way to a more reliable chain drive, the service life of which is more than 250 thousand km, instead of a distributor, individual ignition coils, an electronic ignition system, new pistons, light rods 135 mm, compression piston height 42.8 mm are used. M50 nozzles - 154 cc.

In 1992, these M50 engines began to be equipped with a phase shifter on the intake shaft (Vanos) and the name of the new engines was changed to M50B20TU. These engines used new connecting rods, 145 mm long, and the compression height of the piston is now 31.64 mm.
Siemens engine management system MS 40.1
These motors were used on BMW cars with a 20i index.
In 1994, the low-volume M50 was replaced by a new, more advanced one, with the same displacement.

BMW M50B20 engine modifications

1. M50B20 (1990 - 1992 onwards) - basic engine variation. Compression ratio 10.5, power 150 HP at 6000 rpm, torque 190 Nm at 4700 rpm.
2. M50B20TU (1992 - 1996 onwards) - added the Vanos system (phase shifter at the inlet), replaced the ShPG, used camshafts with a phase of 228/228, lift 9/9 mm, compression ratio 11, power 150 hp at 5900 rpm, torque 190 Nm at 4200 rpm.

BMW M50B20 engine problems and malfunctions

In the area of \u200b\u200bmalfunctions, the M50B20 engine is similar to the older 2.5-liter brother M50B25, you can learn more about the problems.

BMW M50B20 engine tuning

M50B20 Stroker

It is no secret that the 2-liter engine does not impress with power and many owners of the M50B20 do not mind increasing the power without losing much in reliability. The easiest way is to buy a Swap engine. If we consider the options for modifying the native engine, then the easiest option to raise the recoil is to increase the working volume to 2.6 liters, with standard BMW parts.
For this step, we need to buy a crankshaft and an air flow sensor from, stock connecting rods, we buy pistons from M50TUB20. The injectors, throttle body, fuel pressure regulator and tuned ECU are taken from the M50B25. After these transformations, we get a compression ratio of ~ 12 and a power of about 200 hp, pour 98 gasoline and drive without problems, or put a thick cylinder head gasket and pour 95, alternatively you can remove 0.3 mm from the bottom of the piston and get by with a standard gasket.
If the motor is with vanos, then we put the crankshaft and connecting rods from М52B28, injectors from М50B25.
To get our new M50B26 engine to its fullest, you need to buy an intake manifold and a throttle valve from an M50B25, make a head porting, align the channels and install an equal length exhaust manifold with full exhaust from an M50B25 or a sports one. These modifications will allow the engine to breathe freely and the maximum power will increase significantly. The dynamic characteristics of a car with an M50B26 engine and all of the above tuning will be significantly higher than the usual M50B25.
The next step could be the M50B20 Stroker 3.0. To obtain 3 liters of displacement, we need to bore cylinders up to 84 mm and buy pistons with rings, connecting rods with liners and a crankshaft from. The cylinder block is ground down by 1 mm. In addition, we buy a cylinder head, main bearings from M50B25, a timing chain with a tensioner and a damper, as well as all gaskets and injectors of 250 cc. After assembling all this on the basis of the M50B20 block, we will get a full-fledged M50B30 Stroker.
To get maximum power without a turbine on the M50B30 Stroker, you need to throw out the stock camshafts and buy Schrick 264/256 (or other similar ones), 6 throttle inlets, injectors and MAP sensor from S50B32, exhaust from. After tuning, we get about 250-270 hp, and sometimes more.

M50B20 Turbo

The easiest option to turbo the M50 is to buy a Garrett GT30-based turbo kit with a turbo manifold, wastegate, blow-off, MAP sensor, wideband lambda probe, boost controller, full intake, intercooler, 440 cc injectors and full exhaust. To make it all go, you need to tune the brain, the output will be about 300 hp. on the piston stock.
For more power, it is necessary to replace the turbine with a Garrett GT35, injectors for 500 cc, the stock pistons are replaced with CP Pistons with a compression ratio of 8.5, Eagle connecting rods, APR bolts, a metal cylinder head gasket, adjust and get 400 ++ hp.

Concern BMW (Bayerische Motoren Werke) - one of the world's largest manufacturers of cars and motorcycles. However, the production of internal combustion engines is far from the last in the structure of its production. Suffice it to say that the line of power units manufactured by the concern includes both gasoline and diesel:

  • BMW IN-LINE ENGINES (RANGE M)

In the automotive powertrain market, the most famous in-line six-cylinder engines of the BMW concern. Various engine modifications of the M model range have been installed on BMW 3 and 5 Series vehicles in different years:

m10 (1962-1988), m20 (1977-1987), m40 (1988-1994), m50 (1990-1995), m52 (1994-2001), m54 (2001-2006).

In 2005, the engines of the M model range were replaced by a new generation of BMW engines - the N series. Its first representative was the N52 engine.

  • M50 SERIES ENGINES

In Soviet times, the purchase of a BMW car was a pipe dream of every car enthusiast. However, during the times of "perestroika", many managed to realize their dream? and on domestic roads these previously inaccessible models appeared in a fairly large number.

It was at this time that the BMW concern massively produced and installed engines of the M model series on its cars, the technical characteristics of which were many times superior to the parameters of domestic automobile engines.

Specifications

M50b25 engine:

PARAMETERVALUE
Working volume of cylinders, cu. cm2494
Rated power, hp from. (at 5900 rpm.)192
Maximum torque, Nm (at 4700 rpm.)245
Number of cylinders6
Number of valves per cylinder, pcs.4
The total number of valves, pcs.24
Cylinder diameter, mm84
Piston stroke, mm75
Compression ratio10...10,5
Cylinder operation diagram1 - 5 - 3 - 6 -2 - 4
FuelUnleaded gasoline
AI-95
Fuel consumption, l / 100 km (city / mixed / highway)11,5/8,7/6,8
Lubrication systemCombined
(spraying + under pressure)
Engine oil type5W-30, 5W-40, 10w-40, 15W-40
The amount of engine oil, l5.75
Cooling systemLiquid, closed type with forced circulation
CoolantEthylene glycol based
Motor resource, thousand hours400
Weight, kg198

The engine was installed on cars produced by the BMW concern: 3 series - BMW 320 E36, 325i E36; 5 series - BMW 520 E34, 525i E34.

Description

The beginning of the M lineup was laid by 4-cylinder engines of the M10 series with a volume of 1.5 ... 2.0 liters. The high technical characteristics of various modifications of these motors were largely due to the use of:

  • two carburetors;
  • fuel injection;
  • turbocharging.

Design features of the M10 series motors:

  • The cylinder diameter is greater than the piston stroke.
  • The number of main bearings is 5.
  • The intake and exhaust manifolds are located on opposite sides of the power unit.
  • The cylinder block housing is made of cast iron and its head is made of aluminum.

NOTE: All M Series engines use a cast iron cylinder block + aluminum head combination. Only on engines of the N52 series did this pair begin to be made from a magnesium-aluminum alloy.

At the end of 1988, on the basis of the M10 engine, a new series of 4-cylinder engines was developed, which received the m40 index. Structurally, it was distinguished by the presence of:

  • hydraulic valve lifters;
  • of a belt drive of a gas distribution mechanism (GRM) SOHC.

The BMW m40 series engines had:

  1. higher power;
  2. increased torque in the area of \u200b\u200blow and medium rotational speeds of the crankshaft;
  3. less weight;
  4. reduced overall dimensions.

However, the power of 4-cylinder engines for heavy BMW cars was sorely lacking. Therefore, the management of the company in the mid-60s decided to develop a model range of power units with 6 cylinders and seven crankshaft bearings.

It began with a family of M30 inline engines with a cylinder volume of 2.5 to 3.5 liters. Despite the high technical parameters, these engines had a number of disadvantages, among which the main ones were high weight, significant overall dimensions and high cost.

In 1977, having begun to develop more modern, highly efficient and low-cost cars, the engineers of the concern created on the basis of the M30 a number of new modifications of 6-cylinder engines.

The first of them was a series of M20 motors with 2 valves per cylinder and a SOHC timing belt drive. The power units of this series were replaced by the m50 series motors, each of which is an in-line 6-cylinder gasoline engine, which, unlike its predecessor, has 4 valves per cylinder and two camshafts (DOHC system) with valve hydraulic lifters.

In addition, in engines of the m50 series, the timing chain is driven by a chain, the service life of which is at least 250 thousand kilometers. The presence of hydraulic valve lifters, which exclude the need to adjust the latter, and the "unkillable" timing chain, greatly simplified the maintenance of these power units.

In addition, in 1992, the engines of this family received a new variable valve timing system Vanos (Technical Update), developed by BMW.

The system allowed:

  1. Increase torque at low engine speeds.
  2. Reduce fuel consumption.

Installation of the Vanos system required replacement:

  • parts of the connecting rod and piston group;
  • camshafts;
  • electronic control unit (ECU).

Later the Vanos system underwent a number of changes. So on the N52 engine, a more advanced variable valve timing system was installed on two Double Vanos shafts.

Maintenance

Regular maintenance of the m50 series motors is reduced to the timely replacement of engine oil.

The regulatory documents of the concern recommend changing the oil every 15,000 km, however, taking into account the condition of our roads and the quality of the fuel, the specialists of domestic service stations advise to carry out this procedure after 7,000 km. In this case, it is necessary to ensure that the engine oil to be filled has a BMW LL-98 or LL-01 approval.

Malfunctions

The m50b25 engines are considered one of the most reliable engines manufactured by the BMW concern. However, they, especially after the mileage exceeds 200 thousand km, are characterized by a number of common malfunctions.

FAULTSCAUSES
The engine runs unstable.May be faulty:
1. Ignition coils.
2. Spark plugs.
3. Nozzles.
4. Idle valve.
5. Sensors for throttle position, temperature, lambda probe.
Loss of power.The Vanos gas distribution system is out of order.
The engine is overheating.Possible failure:
Ÿ thermostat;
Ÿ cooling system pump (pump);
Ÿ radiator.
Increased consumption of engine oil.Check the valve cover and sump gaskets for oil leaks.

Tuning

Unlike the engines of the N52 series, which are practically not amenable to tuning, the motors of the M series can be modified independently. For example, there are several tuning options with which you can increase the power of the M50b25 engine:

  1. The easiest way is to install a long-stroke crankshaft (stroker), which was installed in the m54b30 engine. At the same time, it is necessary to purchase and install a number of parts of this power unit: connecting rod-piston group; nozzles; root liners. By adjusting the ECU accordingly, you can get a power of about 230 liters. from.
  2. The maximum power without using a turbine can be obtained by installing: Schrick 284/284 camshafts; injectors from the S50 sports engine; six-throttle inlet; equal length exhaust manifold; direct-flow exhaust system, etc. Correct adjustment of the ECU will bring the engine power up to 280 hp. from.
  3. If you set a goal to increase the engine power to 500 hp. with., then this can be done by installing on it: turbo kit with Garret GT 35; a connecting rod-piston group for a compression ratio of 8.5; injectors 550 cc.


BMW M50B25 / M50B25TU engine

Characteristics of the M50V25 engine

Production Munich plant
Engine brand M50
Years of release 1990-1996
Cylinder block material cast iron
Supply system injector
A type inline
Number of cylinders 6
Valves per cylinder 4
Piston stroke, mm 75
Cylinder diameter, mm 84
Compression ratio 10.0
10.5 (TU)
Engine displacement, cubic cm 2494
Engine power, hp / rpm 192/5900
192/5900 (TU)
Torque, Nm / rpm 245/4700
245/4200 (TU)
Fuel 95
Environmental standards Euro 1
Engine weight, kg ~198
Fuel consumption in l / 100 km (for E36 325i)
- city
- track
- mixed.

11.5
6.8
8.7
Oil consumption, gr. / 1000 km up to 1000
Engine oil 5W-30
5W-40
10W-40
15W-40
How much oil is in the engine, l 5.75
Oil change is carried out, km 7000-10000
Engine operating temperature, deg. ~90
Engine resource, thousand km
- according to the plant
- on practice

-
400+
Tuning, hp
- potential
- without loss of resource

1000+
200-220
The engine was installed

BMW M50B25 engine reliability, problems and repair

In 1990, the popular in-line six was replaced by a new, much more advanced and powerful, called BMW M50B25 (popularly nicknamed "Stove"), from the new M50 family (the series also included, M50B24). The main difference between the M20 and M50 engines lies in the cylinder head; in the new engine, the head was replaced with a more advanced two-shaft, 24-valve with hydraulic compensators (valve adjustment is not threatened). The diameter of the intake valves is 33 mm, the exhaust valves are 30.5 mm. Camshafts with a phase of 240/228 are used, a lift of 9.7 / 8.8 mm. And also an improved lightweight intake manifold is used.
Bosch Motronic engine management system 3.1.
The timing drive in the new M50 engines has also changed, now instead of a belt, a chain is used, the service life of which is 250 thousand km (as a rule, it runs more). In addition, individual ignition coils, an electronic ignition system, other pistons, lightweight connecting rods with a length of 135 mm are used. The size of the M50B25 nozzles is 190 cc.
Since 1992, M50 engines have received the well-known Vanos intake camshaft timing system, and such engines have become known as the M50B25TU (Technical Update). In addition, these engines use new 140 mm connecting rods and pistons with a compression height of 32.55 mm (38.2 mm on the M50B25).
The control system is replaced by Bosch Motronic 3.3.1.
These power units were used on
bMW cars with index 25i.
Since 1995, the М50В25 engine began to be replaced by a new improved engine, and in 1996 the production of the М50 series was completed.

BMW M50B25 engine modifications

1. M50B25 (1990 - 1992 onwards) - base engine. Compression ratio 10, power 192 hp at 5900 rpm, torque 245 Nm at 4700 rpm.
2. M50B25TU (1992 - 1996 onwards) - added a variable valve timing system at the Vanos intake, changed the connecting rod-piston group, installed other camshafts (phase 228/228, lift 9/9 mm). Compression ratio 10.5, power 192 HP at 5900 rpm, torque 245 Nm at 4200 rpm.

BMW M50B25 engine problems and malfunctions

1. Overheating. The M50 engine is prone to overheating and tolerates it quite hard, so if the engine starts to warm up, check the condition of the radiator, as well as the pump and thermostat, the presence of air plugs in the cooling system and the radiator cap.
2. Troit. Check the ignition coils, most often the problem is in them, as well as the spark plugs and injectors.
3. Float turns. Often the malfunction is caused by a failed idle valve (KXX). Cleaning will help revive the motor. If the problem persists, then look at the throttle position sensor (TPS), temperature sensor, lambda probe, clean the throttle valve.
4. M50 Vanos. The problem is expressed in rattling, loss of power, swimming revs. Repair: purchase of a vanos M50 repair kit.
In addition, due to their age and operating characteristics, BMW M50 engines suffer from high oil consumption (up to 1 liter per 1000 km), which does not decrease too much after overhaul. Valve cover and pan gaskets may leak, leaks through the oil dipstick are not excluded. The expansion tank also likes to crack, after which we get antifreeze leakage. At the same time, the sensors of the M50 camshaft, crankshaft (DPKV), coolant temperature, etc., cause problems from time to time.
Despite everything, the BMW M50B25 engine is one of the most reliable power units of the Bavarian manufacturer, and the bulk of the problems are caused by the age and style of operation of the engine. And even such engines roll over 300-400 thousand km, and if the engine was used in a sparing mode and was adequately maintained, then its resource can go far beyond 400 thousand km, because it is not in vain that they have received a reputation of millionaires.
Buying an M50B25 engine is a good choice for swap and subsequent revision with a turbocharger. Let's talk about such decisions further.

BMW M50B25 engine tuning

Stroker. Camshafts

The easiest and fastest way to increase power using factory components is to install a long-stroke crankshaft (stroker). In M50B25 (Without vanos), a knee rises from a stroke of 89.6 mm. From the same engine, you need to buy connecting rods, connecting rod bearings, repair pistons, injectors, and main bearings from M50.
We collect (you can leave the firmware, but it's better to tune in) and drive a 3-liter М50Б30, with a capacity of about 230 hp and a compression ratio of 10.
The same power can be obtained by purchasing Schrick 264/256 camshafts and adjusting the Motronic stock. As a result, we get 220-230 hp. Let's buy a cold air intake, sports exhaust and get 230+ hp.
The same camshafts on the M50B25 3.0 stroker will give about 250-260 hp.
To get maximum power from the M50B30, you need to buy Schrick 284/284 camshafts, a six-throttle intake, BMW S50 injectors, a light flywheel, make a cylinder head porting, buy an equal-length exhaust manifold and a straight-through exhaust. Once tuned, this M50B30 develops around 270-280 hp.
If this is not enough, you can bore a block for 86.4 mm pistons from S50B32 and get a displacement of 3.2. Buy camshafts and get about 260 hp.
The vanos M50B25 can be converted into a 2.8 liter engine by installing a crankshaft with an 84 mm stroke and connecting rods from M52B28. Together with the SIEMENS MS41 firmware, this will give +/- 220 hp, compression ratio ~ 11.

M50B25 Turbo

In the case when the atmospheric engine is small or the costs for its implementation are too high, you can organize a turbo version on a 2.5-liter engine. If tuning is supposed to be budgetary, then a Chinese turbo kit based on the Garrett GT35 (or another, with brains included) is your choice. Alternatively, you can find a used TD05 turbine (or another), weld the manifold, assemble all the piping, clamps, boost controller, intercooler, etc. Put everything on the stock piston, after installing a thick Cometic cylinder head gasket, 440 cc injectors, a Bosch 044 fuel pump, an exhaust on a 3 ″ pipe, an EFIS 3.1 brain (or Megasquirt), adjust it and get about 300 hp at 0.6 bar. At 1 bar ~ 400 HP
Something similar can be built by buying a compressor kit M50 and installing it on a piston stock. The compressor output will be noticeably lower than that of the turbine.
Even more power can be obtained by purchasing and installing a turbo kit on an original Garrett GT35, CP Pistons 8.5 compression, Eagle connecting rods, ARP bolts, performance injectors (~ 550 cc). With kits like this, you can increase the power up to 500 ++ HP. Similar projects can be built on a 3-liter stroker.