Let�s be clear about this, SP�s, or whatever you want to call them, do give a small advantage which can be significant, particularly over 6 hours! It doesn�t change the fact that hardly a weekend goes by that someone isn�t bending my ear about the cost of these things, and can�t I so something about it? And it is as much from those using them, as those not! Whilst skimming the block would take one variable away it is only a small piece of what constitutes an SP. All three preparers I have visited in the last month have rigs to measure air flow through the ports, for example, and there is no simple way of blueprinting those! So I�m sorry if I seem pedantic, but I can�t visualise a simple economic method of equalising these engines so they are all the same. That only leaves me with an �economy� class and I believe the simplest way to police that is through a buy-back process, to deter people from spending money on engines which could very easily be taken from them at the end of the day. Drivers, it�s your choice! Whatever happens we are going to have to use this T2 and I have, with the help of the others, made a best guess of what will make the T1 and T2 equal. With only a first sample to work from, our results could be skewed, we�ll just have to wait and see. But we did out best with what we were given.
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