[gwyllion]

Originally Posted by chernaudi

Peugeot would want to got the stress mounted route, but that would mean an engine built from scratch or a siginifanctly modified block and head for a stock block engine, like the P07 and the MZR-R.

The only thing the AER MZR-R shares with a Mazda stock engine is its name.

AER technical director Oliver Allan recalls, 'The initial brief was to convert the MZR to a race engine, but we saw some issues with that, the biggest being to get a dry sump into the engine in an economical manner. The compromise that we reached was to have a new design of engine, but one heavily based on the MZR. There are no common parts and, while the cams could be said to be of a similar design, they do not carry across.'

soure: http://www.racecar-engineering.com/a...zr-r-lmp2.html