Decreased consumption and increased power.

[elephant]

Deledeco said:

Opel makes fun of its customers by stupidly restraining an oversized engine (180 reduced to 120CV, that's a lot of gas sucked for nothing), without optimizing its operation,

They don't have a monopoly! As long as it sells. And next year, as the competition has progressed, we will modify the settings to adapt. It is useless to offer the optimum of what we can do, because then the competition outbids and we end up being stalled.

As for power: let's not forget that in many countries, the insurance price is directly linked to the power of the vehicle.

[Flytox]

Otherwise, if the motor is not optimized to the max, (likely if it is flanged), then changing anything in it, either we increase, or we decrease, consumption, taking the opposite direction to that which increases !!!

Mathematical evidence, when the derivative according to a parameter is not zero outside the maximum !!

It works as well for adding water as for modifying the programmer or anything in the engine !!

http://fr.wikipedia.org/wiki/D%C3%A9riv%C3%A9e


if you are not at the mini, there is always a way to reduce consumption, by choosing common sense !!

With the same motor, by changing anything in the motor, we always move further away from the maximum of the curve. the majority of the organs are already optimized with respect to each other for the powerful version, we can only lower the various yields most of the time. If the camshaft is designed to deliver the maximum torque to you at one speed and you operate at another, your gas passages, valve diameters lengths and diameters of conduits, resonances, operating temperatures etc, everything is shifted, the couple will never be optimal and everything has to be started again.

On the other hand by just modifying the parameters which have been intentionally degraded by Opel (and other manufacturers who use this old string) advance to ignition, advance to injection (multi-injections), richness and other EGR valves to control pollution , we can get to the top of the curve (derivative) you are talking about.

[Flytox]

in fact precisely, my engine is 120cv, except that it is in fact a 150cv mill flanged by the mapping, but the same engine was distributed at 180cv by opel.
all the guys who modified the cartography saw their consumption decrease, so i wonder why.

We already talked about it in chai more what post, the answer is almost in the question, the manufacturers intend to sell you the biggest car possible because they have bigger margins on the higher end models, so there they have to argue that it consumes less etc ... even if it means telling any bullshit about the power of the engine, and above all degrading the performance of their low-end to make the difference. In any case they will sell you their dirt from oversized machines which are at least 4 times more powerful than your real need.

[antoinet111]

Need / Pleasure ...

difficult to make sense of things, if you can add an argument to the pleasure, that is the drop in consumption, then autans go.
also I do not forget the safety, because the power of the vehicles already got me out of "precarious" situation.

[sherkanner]

Ah yes, it may also be that the low engine has been resized to collect only the 120hp, and not 180hp.

Pay attention to this.

[antoinet111]

precisely, it's interesting, in fact and well my mill is strictly identical to a good number of mills in other cases (JTD and CDTI ditto)

[dedeleco]

Flytox list:

With the same motor, by changing anything in the motor, we always move further away from the maximum of the curve. the majority of the organs are already optimized with respect to each other for the powerful version, we can only lower the various yields most of the time. If the camshaft is designed to deliver the maximum torque to you at one speed and you operate at another, your gas passages, valve diameters lengths and diameters of conduits, resonances, operating temperatures etc, everything is shifted, the couple will never be optimal and everything has to be started again.

On the other hand by just modifying the parameters which have been intentionally degraded by Opel (and other manufacturers who use this old string) advance to ignition, advance to injection (multi-injections), richness and other EGR valves to control pollution , we can get to the top of the curve (derivative) you are talking about.

considering the number of variables or parameters to optimize one ends in this kind of multidimensional computations:
http://fr.wikipedia.org/wiki/Optimisati ... atiques%29
http://fr.wikipedia.org/wiki/Probl%C3%A ... %C3%A0_dos
http://www.inge.fr/Simulation-3D-Modele ... ysique.pdf
http://fr.wikipedia.org/wiki/Th%C3%A9or ... implicites
http://fr.wikipedia.org/wiki/Exploratio ... nn%C3%A9es

who first ask to understand the engine with a good quantitative description, which is never done correctly.

[antoinet111]

you are heavy ...

[Alain G]

Ben!

I have a big American tank (Dodge Charger 3,5 petrol liters) which according to the sales sheet consumes 8,3 liters 100 km for 90 km / hour according to the tests of Transport Canada, yet I do in real 7,5 l / 100km to 120 km / h calculated on the amount of fuel consumed from the tank!

How to reach this consumption ???


1) replace the original filter with 2 high performance conical filters and tubing of my "Y" design.
2) synthetic oil with wynn's anti-friction additive in the engine and automatic transmission.


This engine is equipped with variable hatches in the intake which balances the air on each cylinder at low speed for less consumption which does not do the variable cams of Honda V-Tec for example.

The reprogramming certainly gives a certain economy but also decreases the life of the engine with regard to the top of the combustion chamber.
The use of an anti-friction such as wynn's corrects this problem while prolonging life.

The increase in power of a small engine always contributes to the fuel economy, this is why more engine are downsyzed without decreasing the power to arrive at a higher economy allowing speed changes at lower revs.

[Flytox]

considering the number of variables or parameters to optimize one ends in this kind of multidimensional computations:
http://fr.wikipedia.org/wiki/Optimisati ... atiques%29
http://fr.wikipedia.org/wiki/Probl%C3%A ... %C3%A0_dos
http://www.inge.fr/Simulation-3D-Modele ... ysique.pdf
http://fr.wikipedia.org/wiki/Th%C3%A9or ... implicites
http://fr.wikipedia.org/wiki/Exploratio ... nn%C3%A9es

who first ask to understand the engine with a good quantitative description, which is never done correctly.

Indeed the optimization calculations become "a little" violent quickly ....