Astra Coupe Turbo 273bhp, but 25bhp less power with WI.

[Richard L]

Originally Posted by K3FUS

Sounds like a stupid question, but what will it do? My car is identical to Mike's and as you may remeber my WI is non operational at the moment until I deside what to do with it (still not sure about the intercooler spray).

The unit is suppose to modify the fuel delivery. In order for WI injection to play an active part in power making, the air/fuel ratio has to be corrected.

In almost all turbo cars, it tends to run rich to so the fuel is used as a coolant. But rich a/f ratio also robs power. So if we can replace those extra fuel by water, it is the most ideal setup for water injection. The unit do just that.

Water injection is effective on retaining your power in the summer by keeping the charge temperarture down but in winter, it tends to rob power due to over cooling. Reducing rich fuel mixture will allow more heat available for power.

Does it make sense?

Richard