I wrote to Renaultsport asking about this Group N ECU i got:
I wrote: Please send information regarding the use of the Group N ECU within the Renault Sport Clio (phase 1). What regulations are subject to this class? How is the powerband altered using this ECU?
Many thanks etc.
The reply from: "HANSEN Lionel" firstname.lastname@example.org was:
Dear mister (Simon),
The FIA rule demand to keep the sensors of series present on the engine.
It is possible to modify the connctions of cablage as well as to change the ECU Box.
Concerning the characteristics of the modifications in to the Renault Sport ECU Box.
The series engine speed is supposed to be 7250 rpm for 1 to 3 and 7000 rpm after.
The Groupe N box is always to 7400 rpm limited 1 to 5.
Power + 8 Hp. (with the exaust system)
Torque + 1,7 Mkg.
Let me know if you need anymore information.
Renault Sport Technologies
Im going to reply and ask what exhaust system they use....