Characteristics
| Parameter | Value |
|---|---|
| Production | Cleon Plant, Aguascalientes Plant |
| Engine Brand | F-series |
| Years of manufacture | 1994-2001 |
| Cylinder block material | cast iron |
| Power system | injector |
| Type | row |
| Number of cylinders | 4 |
| Valves per cylinder | 2 |
| Piston stroke, mm | 93 |
| Cylinder diameter, mm | 82.7 |
| Compression ratio | 9.8 |
| Engine displacement, cc | 1998 |
| Engine power, hp/rpm | 114/5400 |
| Torque, Nm/rpm | 168/4250 |
| Fuel | 92-95 |
| Environmental standards | Euro 1 |
| Euro 2 | |
| Euro-3 | |
| Engine weight, kg | – |
| Fuel consumption, l/100 km (for Laguna) | |
| – city | 11.2 |
| – highway | 6.7 |
| – mixed | 8.4 |
| Oil consumption, gr./1000 km | to 1000 |
| Engine oil | 10W-30 (Moskvich) |
| 10W-40 | |
| 15W-40 | |
| How much oil in the engine, liters | 5.1 (Moskvich) |
| 5.5 | |
| Oil change is carried out, km | 10000 |
| Engine operating temperature, deg. | 90 |
| Engine life, thousand kilometers | |
| – according to the factory data | 150+ |
| – in practice | 500+ |
| Tuning, hp | |
| potential | 120+ |
| – without loss of resource | – |
| The engine was installed | Renault Laguna I |
| Renault Megane I | |
| Renault Espace III | |
| Volvo 440 | |
| Volvo 460 | |
| Volvo 480 |
Reliability, problems and repairs of the F3R engine
The F3R that we all know well was first installed on the car Renault Laguna in 1994 and was an 8-valve version of the F7R. Here was used cast iron block with a diameter of cylinders 82.7 mm. Inside this block is installed crankshaft with a stroke of 93 mm, connecting rods length of 149 mm, and compression height of pistons 36.12 mm. All this together gives the same 2 liters of displacement.
This block is covered with an ordinary 8-valve head with a single camshaft, which has a phase of 240/240 degrees, 11 mm lift. The size of inlet valves is 40 mm, exhaust valves 32.5 mm, and the leg thickness is 8 mm. There are no hydrocompensators here, the clearances are adjusted with washers every 60 thousand kilometers. Valve clearances on cold: intake 0.2 mm, exhaust 0.4 mm.
The camshaft is rotated by a timing belt. The timing belt needs periodic tension checks and replacement after every 60 thousand kilometers. If it breaks, then it is unlikely that everything will end favorably for you.
This motor had a lot of modifications, which did not differ from each other, their main differences are the attachments under the cars on which they were put.
In 1998, a 16-valve F4R appeared, which later replaced the F3R.
Problems and disadvantages of engines F3R
- Swimming RPMs. The problem is often in the idle speed regulator and after replacing it all this will go away. If not, then look at the throttle plate.
- Won’t start, stalls. Look for a problem in the ECU or in the DPKV or in the wiring.
- Doesn’t drive, doesn’t pick up speed well. Often the problem is in the gasoline pump.
But due to old age, problems can occur with anything and everything. In any case, this is an incredibly reliable engine that goes 500 thousand kilometers without problems without overhaul. If the motor fell apart earlier, it means that either the mileage was twisted, or it was operated as it was: water was poured instead of antifreeze, cheap oil was changed once in eternity, parts from Chinese basements were used, and so on.
Renault F3R engine tuning
Atmo
It is quite obvious that this is a very old, heavy and barely alive engine, so before you try to spin a 400-500 thousand kilometer motor to 7000 rpm, it is a good idea to overhaul it. This alone will give a plus to dynamics.
Further you will need a bigger receiver, spider 4-2-1, it is necessary to make porting of the cylinder-head, align and combine channels, put lightweight enlarged valves, with normal springs, bronze guides, solid pushrods, find a more aggressive camshaft (with a phase of +/- 280 degrees) with a split pinion or retool your own, weld a straight exhaust on 51 mm pipe. Then you need to go to the control unit January and customize it to your configuration. All of this can give you about 150 hp. It would be nice to install a lightweight piston.
All these parts should be either custom-made or look for b/a, as a result of all the transformations you will be able to bump the VW Polo GT.
Compressor
On such a finalized engine you can put a supercharger from the engine Toyota 1G-GZE or from 2TZ-FZE, which is called SC-14. Don’t forget the intercooler, it will come in handy. Before installing it, it’s a good idea to lower the compression ratio to 8.5 with forged pistons and good H-rods to keep all this stuff from falling apart. You also need a good fuel system with a Walbro 255 pump and injectors around 440 cc. That way you get +/- 200hp and now, after all the investment, you can drive at the level of a chipped Polo GT Stage 2.
ENGINE RATING: 4+