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Last Updated: 20 December 2013 20 December 2013
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2013 trip to Surrey Rolling Road

Photo: Mike Williams

From the email list

The real surprise was that at about the 4000rpm point, all the cars had exactly the same power figure! After that, the cam profiles of the two GT cars (mine and Joe's) separated us from the auto's.

Although all the cars pulled pretty good power curves, I thought they were all slightly down compared to what I have seen on previous occasions at the same venue. Mine, for example has pulled 338 estimated bhp before, but only hit 331 today. Several factors contribute to the varying figures from day to day, but the real benefit of today was the comparison of all the cars together.

Considering the varying attention these engines get, and the fact that they are all well over 20 years old, it's a real testament to the German engineering that went into the design and build of these fantastic power plants ;-)

Extract of an email to the list from Simon 91GT