It's an 1800CC Renault Laguna II spec lump originally (can't remember the engine code) from a Proton Waja running at 2000CC for the S2000 regs.
Has MEM spec forged pistons, MEM spec conrods, MEM spec crank, clever steel flywheel, loads of headwork and a few other bits - makes around 280bhp at just shy of 8000RPM.
Engine control is Gems X25's though :-( Should be on Pectel SQ6 as per MSD's lovely, lovely Opel.
The Proton is built by Mellors Elliot Motorsport BTW and I'm pretty sure Sodemo had a hand in the engine.
Cheers
M