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S54B2HP
Hi. Has anyone looked at modifying our ///M S54 engines to some of the specs on the S54B2HP engine, as found in the M3 CSL? Camshafts, alone, would be about $1700. I'm guessing that with some of the other necessary parts, you'd be in the $3K neighborhood, and still not match the 355 HP figure shown. But hope springs eternal.
From a couple of web sources:
"Streamlined, lightweight S54 engine, mounted only on the M3 CSL E46 and officially designated – S54B32HP. Its peculiarity lies in the air intake of carbon fiber, modified camshafts, lightweight exhaust manifold (intake and exhaust manifolds slightly improved engine performance), the DME control system and more efficient air intake system, which is supplied mainly from the round hole on the front bumper. In addition to this, the vehicle is equipped with lightweight exhaust system made of thin steel."
"An upgraded version of the S54 engine was used in the E46 M3 CSL. This engine is designated S54B32HP and the changes include a revised intake made from carbon fiber, revised camshafts, a MAP sensor (instead of the MAF sensor used in the regular S54), a lightweight exhaust manifold with a straighter air path (which later become standard on the regular S54) and a straightened intake manifold."
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