i've come to the conclusion that, if anyone who runs a rolling road and don't have a fan, well they know feck all about torbo'd cars, anyone with any sense, know's that a turbo car on a RR heats up pretty damn kwik.you need to get on a better RR rob, put yours on one at the same time as me and then at least you will know if you have the right result, i know where i had mine done is accurate, so i've a good idea on what power i should expect, so we could work it out from there.