Final tune has been finished, originally we had 89KW at the front wheels (I thought it was 98KW but there you go), then to 117KW with the tune and finally we now have 123KW at the fronts:
117KW to 123KW is gain from water/methanol injection kit.
Unfortunately the
ECU is now the limiting factor, if they try get more fuel, they can't do it at a specific point it gives them more fuel across the whole range, so from idle to limiter, they tried increasing rail pressure but then it pulls back injectors. They did get one tune with 130KW/wheels but it was very smokey and for some reason had nothing under 4000 RPM.
I can't go more on the water/methanol sizing as it goes to stall the engine with the next size up nozzle.
So yes as I concluded a few years ago the
ECU is unfortunately the limiting factor with our cars, if we could control fuel better there is more in it.