ORIGINAL: Mr Cox
Just to clarify, it is the KB engine that has a brass/bronze rod and the ABN technology.
The HPI is true ABC and has a rectangular aluminium rod.
I have only seen a bronze rod in the Toki .05 engines before, but they could possibly be making the parts for the KB too then.
This is the info page for the engine I have..
http://www.hpiracing.com/optionparts/stat-15fe.htm
Or I suppose they could be Fuji, but I have never had a Fuji in my hands to know.