I'll have to refer to the book(s) to be certain but IIRC the Sabre-powered Typhoon, Tempest or both initially had a radiator under the centre-section and there were unexpected consequences, either regarding cooling or aerodynamically.
Moving it forwards to the familiar chin position cured the problem.
I showed a young mate with a mechanical bent the sectioned Sabre at Duxford a couple of years ago. It made his head hurt.
We're going again sometime this year. I'll show him the innards of a radial...