I am still putting money on the flat spot being a fuelling issue, and nothing to do with the code and I will be in a position to confirm this one way or another within 2 weeks. Spoke to Carl just now about intakes, and he recommended the ITG, so if that has proven to be the most efficient, then the fuelling modification I will be getting will definitely test things if I can have an ITG fitted prior to the fuelling modification being done.
Mine is Revo Stage 2+ and on a early 2007 car with a low BWJ engine number, therefore disproving the valve spring issue on post 2008 cars. That being said, this flat spot is present quite a few non Revo cars too again backing what Revo are saying about it being a mechanical issue.
I know I have said it on SCN, but you lads are being a bit hard on Revo with this flat spot issue. All the logs I have done and rolling road graphs show the car to be running great with the Revo code and the car is on its 3rd variation of the code now from S1 to S2 and now S2+ although I have never yet managed to log the car when the flat spot was present.
Give me 2 weeks and I will revert back with some good news hopefully, and it will be nothing to do with the Revo code I bet