A 3,2L twin turbo IMSA engine from 86, A nice combination that Porsche made for the IMSA championship used in a type 962 car. It produces 970hp at 7800 rpm.

Porsche 962 IMSA engine,

This engine is a IMSA version of the GR5 based engine. It has 3,2L capacity and is updated with Motronic 1.2 injection system witch rises the power and torques curves dramatically compare to the regular 3,2L twin turbo 935 engine. With close to 1000hp with controlled boost these type of engines could reach 1250hp with 1.9 bar for qualification.