Hi, Im currently driving a Skoda Octavia 57 2.0 TDI PD Ambiente 140bhp but I have heard rumours that it is exactly the same engine as in the Diesel version of the VRS and its just computer management (chip) that allows the engine how power it produces such as the 170bhp out of the VRS. If this is true is it possible for my car to then be changed to producing 170bhp rather than its slower 140bhp??? Any Ideas People???

Hi, Im currently driving a Skoda Octavia 57 2.0 TDI PD Ambiente 140bhp but I have heard rumours that it is exactly the same engine as in the Diesel version of the VRS and its just computer management (chip) that allows the engine how power it produces such as the 170bhp out of the VRS. If this is true is it possible for my car to then be changed to producing 170bhp rather than its slower 140bhp??? Any Ideas People???

The 1.9D produces 310 NM, the 140 hp 2 litre 320 NM, the 170 hp 350 NM, the 170 hp is produced by letting it rev a bit higher. Compare the acceleration and the are not that different 9 s, 8.5 seconds to 60 mph.

You can chip them (any of them) to produce 400 MN of torque and that is immense, IMHO do not get hung up on the power it is the torque that is more important than the power as you enjoy that element over more rev range than the peak power.

There is a concept that is hard for people to change their mind set, despite Clarkson efforts, that diesels actually have quite narrow power bands reletive to modern petrols. Both start their torque plateau about 1500 rpm but diesels start to fade at 4500 where petrols start to fade around 6500 rpm.

All the 1.9D and 2D litre are quite similar, 2 litre was created by a 2 mm overbore, adding a common rail to make it quiter and smoother.

Remapping could give you loads more torque but remember that more stress means more wear and there are examples on this site of issues with turbos, computer compenents etc when adjusting the factory settings. My advice is always to change the vehicle if you want more power so the rest of the car matches but many here would beg to differ. Try driving a 125 hp or 140 hp VAG 1.4 TSI, similar or better performance, good fuel consumption, cheap to buy currently with the deal, get a good trade in on your wiesel.

Edited 6 February, 201115 yr by lol

I believe that:

Turbo is the same size but has slightly different disigned blades, larger exhaust outlet and manifold

PD140 has Bosch ECU PD170 has Semmens ECU

PD140 injectors are standard PD cam controlled injectors while the PD170 has Piezo crystal controlled injectors.

Cams have a slightly different profile.

Remap a 140 and because it's actually pumping out nearer 160 that you'll get 170-180bhp depending on which figures the remap company likes to quote.

Edited 6 February, 201115 yr by prolfe

The 140 and 170 are very different engines, the 140 can be remapped to around 170-180BHP easily, but no higher without changing parts. The standard 170 can be remapped a lot higher than its standard output.

Skoda only quote the diesel horsepower at a single rpm quote ie 4200 rpm. My point to someone wanting more power is to look at where this is occuring in the rev range.

What you want is the power say 160 hp or whatever, occuring over a meaty part of the rev range ie 3K to 4.2K revs, ideally whereever the range that is where you have the gear change points between. First to second being the hardest to accomodate as it is the highest percentage difference in 2 ratios.

I did a Mech Eng BSC degree placement at Piper many years ago and these are the things to concentrate on not the highest specific power output.

SWMBO had a MX5 last year, about 170 hp think but not great as that power was right next to where the read line started and it did not have a strong mid range.

Desire is to increase power between 2 and 4 K and not to get hung up at 20 or 30 hp at 4500 rpm near the redline IMO.

Better thing is to see the light and get a TSI.

For instance, 1.8 TSI, 160 hp at 4500 and still 2500 rpm to the redline, 0-60 in 7.6s, and this is why VAG 4 cylinder diesels do not compete on the acceleration front.

Edited 6 February, 201115 yr by lol

0-60 petrols leave diesels for dead.

when underway however 30-50, 50-70 and 30-70, diesels reap the benefits of the torque they hold and can out perform quick 0-60 petrols like the 1.8TSI

The new 211bhp GTi is only 1.5 seconds quicker 30-70 than the sooty vRS which is not that much. compared to the older GTi the gap is lower at 1.2 seconds, day to day this is nothing. Especially when you pop a £300 remap under the bonnet.

In short, 2.0 petrol sounds great and the 2.0 diesel is more fuel efficient.

0-60 petrols leave diesels for dead.

when underway however 30-50, 50-70 and 30-70, diesels reap the benefits of the torque they hold and can out perform quick 0-60 petrols like the 1.8TSI

The new 211bhp GTi is only 1.5 seconds quicker 30-70 than the sooty vRS which is not that much. compared to the older GTi the gap is lower at 1.2 seconds, day to day this is nothing. Especially when you pop a £300 remap under the bonnet.

In short, 2.0 petrol sounds great and the 2.0 diesel is more fuel efficient.

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The figures below disagree. The petrol is either roughly equal to or significantly quicker than the diesel both from standing start (to 100, 120, 140, 160 kph) or rolling start (40 in 4th, 50 in 5th) 1,2 or nearly 3 seconds, not just tenths which could be measurig errors. The TSI figures are for the older EA113 engine, the new TSI produces its 160 hp from 4500 rpm to 6200 rpm and FL is both lighter and slightly more aerodynamic than pre-FL. (VRS TSI now 242 kph, 150.5 mph)

Match : Octavia II RS 2.0 TDI - Octavia II 1.8 TSi

Puissance Maxi

Skoda Octavia II RS 2.0 TDI 170 ch @ 4200

Skoda Octavia II 1.8 TSi 160 ch @ 5000

Couple Maxi

Skoda Octavia II RS 2.0 TDI 350 Nm @ 1750

Skoda Octavia II 1.8 TSi 250 Nm @ 1500

Rapport Poids/Puissance : Poids UE en marche (le plus élevé mesuré)

Skoda Octavia II RS 2.0 TDI 9.24 kg/ch

Skoda Octavia II 1.8 TSi 9.13 kg/ch

Vitesse Maxi (en Km/h)

Skoda Octavia II RS 2.0 TDI 224 à 224 Km/h

Skoda Octavia II 1.8 TSi 223 à 223 Km/h

Km DA (en s.)

Skoda Octavia II RS 2.0 TDI 29.2 à 30.2 s.

Skoda Octavia II 1.8 TSi 28.4 à 28.4 s.

0 à 40 (en s.)

Skoda Octavia II RS 2.0 TDI 2.3 à 2.5 s.

Skoda Octavia II 1.8 TSi 2.2 à 2.2 s.

0 à 60 (en s.)

Skoda Octavia II RS 2.0 TDI 3.7 à 3.9 s.

Skoda Octavia II 1.8 TSi 4 à 4 s.

0 à 80 (en s.)

Skoda Octavia II RS 2.0 TDI 6 à 6.3 s.

Skoda Octavia II 1.8 TSi 5.8 à 5.8 s.

0 à 100 (en s.)

Skoda Octavia II RS 2.0 TDI 8 à 8.9 s.

Skoda Octavia II 1.8 TSi 7.4 à 8.1 s.

0 à 120 (en s.)

Skoda Octavia II RS 2.0 TDI 12.1 à 12.9 s.

Skoda Octavia II 1.8 TSi 11.3 à 11.3 s.

0 à 140 (en s.)

Skoda Octavia II RS 2.0 TDI 16 à 17.3 s.

Skoda Octavia II 1.8 TSi 15.2 à 15.2 s.

0 à 160 (en s.)

Skoda Octavia II RS 2.0 TDI 21.9 à 24 s.

Skoda Octavia II 1.8 TSi 19.9 à 19.9 s.

80 à 120 mini (en s.)

Skoda Octavia II RS 2.0 TDI 6 s.

Skoda Octavia II 1.8 TSi 5.5 s.

80 à 120 en 4 (en s.)

Skoda Octavia II RS 2.0 TDI 6.2 à 6.4 s.

Skoda Octavia II 1.8 TSi 6.6 à 6.6 s.

80 à 120 en 5 (en s.)

Skoda Octavia II RS 2.0 TDI 8 à 8.4 s.

Skoda Octavia II 1.8 TSi 8.7 à 8.7 s.

80 à 120 en 6 (en s.)

Skoda Octavia II RS 2.0 TDI 10.7 à 11.5 s.

Skoda Octavia II 1.8 TSi 10.5 à 10.5 s.

Km de 40 en 4 (en s.)

Skoda Octavia II RS 2.0 TDI 31.6 à 31.6 s.

Skoda Octavia II 1.8 TSi 29.9 à 29.9 s.

Km de 50 en 5 (en s.)

Skoda Octavia II RS 2.0 TDI 33.5 à 33.5 s.

Skoda Octavia II 1.8 TSi 31.1 à 31.1 s.

60 à 0 (en m.)

Skoda Octavia II RS 2.0 TDI 14.2 à 14.2 m.

Skoda Octavia II 1.8 TSi 14 à 14 m.

100 à 0 (en m.)

Skoda Octavia II RS 2.0 TDI 37.8 à 38.8 m.

Skoda Octavia II 1.8 TSi 38 à 38 m.