Quote:
Originally Posted by mowflow
From this test we can conclude that you should buy a Clio as it's the most consistent performer.
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you could say that..........but the other 2 cars are turbocharged so therefore things like octane/air temp are going to effect them more.
I work with a rolling road on a daily basis, shell V power IME is a significant bit better than BP ultimate. Tesco 99 seems to be just as good as V power. going by ignition figures and det limits.....
If a car is detonating, you have to retard the ignition, or put in a higher octane fuel. You can then advance the ignition and the car therefore makes more power.
I also know that after 6 runs, the same car will make a few (3-6ish) bhp more as things like gear oil heat up/thin out.