Last week I had my GTR tuned on Boost98 for a dyno figure of 351rwkw.I used Boost98 after reading the article in HPI by Martin Donnon.
The car ran great with knock readings in the mid 30's,till the weather got hot,where I recorded low 70's.Nigel(Ice Performance) suggested we retard the timing 2 degrees and see what happens.Single digit knock,so we tried 1 degee retarted,where we got mid teens and left it there.The car is going back in for cam timing adjustments,so I just adjusted the timing in the settings screen,I had to do it every time I restarted the car.
Today,I was near a Shell servo that stocks Extreme100,so I thought I would fill up(47 litres) and test it out.I am now running 3 degrees advanced over the original setting on Boost98,thats 4 degrees more timing!!!!! and recording mid teens on the knock sensor.
I will be using this fuel on my next tune in the New year,highly recommended.
Between now and my next tune,I will try Ultimate to see how it compares.