Andreas Erikssons new Fiesta

[Cryos]

Originally Posted by DCS

These are hard to tell: you don't know what is done to the BioDiesel engines to match or exceed the power of the normal ones. It is just like with the 1.8T engines: little or bigger changes make 150-225 bhp and much more when tuned.

The Current Gen diesel engine (in Jetta V not the same as the golf v engine) executes a "Normal Operating Variables Exceeded on Supercharger; Safe Mode Active". Puts the car to a limp mode so you can get it to a dealer; All you have to do is modify the variables on the sensors to allow the Turbo to give more boost and reduce the amount of diesel hitting the cylinders.

We are going to run the polo on biodiesel as it gives a very surprising amount of extra power.

[PhergAthor]

Well Saab and Volvo as well as the flexifuel engine of Ford are designed for bio-ethanol. So yes, there are some modifications to the engine, and in those cases it does produce extra HP.
But there is another thing to remind. The current bio-ethanol or E85 is a mix of 85% ethanol and 15% normal fuel. Eklund is even going to use this fuel in the Swedish championship. He will be running on normal fuel in the ERC.
Saab has also develloped an engine capable of using 100% ethanol.

And by 2008, the FIA has decided that all WTCC cars must run on the E85 bio-ethanol fuel.