DEANB:
Wheres “240gardner” when you need him hes the Atkinson specialist !..
Doing the day job, sorry!
The answer to the original question of which was the top power option in the Borderer, was the turbocharged RR 280. However, only a small number were actually built. Heavier weight Atkinsons were built with the 290 and 335 ■■■■■■■■ but not the Borderer. The Mines Rescue motor is a special heavy duty build, plated at 42T, and not a standard Borderer.