This is a project that many M3POST members have been following for quite some while now. It’s the build process and results for a low compression option for the M3 S65 engine which allows it to run a 10:1 compression ratio (compared to factory 12:1 ratio). And why is that a good thing? The lower compression ratio allows the use of higher boost (via supercharger) safely on pump fuel.
Musical chairs for the next generation M3’s powerplant continues. If Autoexpress’ latest rumor is accurate, the F30/F32 M3 is expected to feature a tri-turbo 3.3L 6-cylinder motor. One of the turbos would be powered by electricity (not exhaust gases as with traditional setups). The motor is speculated to produce 450bhp.
The F30/F32 M3’s body would make use of CFRP to keep its weight down. Dr. Friedrich Nitschke, BMW M’s new managing director also revealed the following to Autoexpress regarding the next gen M3: “There will be a bigger focus on very low fuel consumption,” “The new M3 will prove this.”
The next generation M3 is still at least 3 years from its debut, but it’s never too early for speculation, particularly about its powerplant. While the current E9x M3 is powered by the marvelous high-revving V8 engine (S65), it’s been widely speculated that that the next generation M3 will return to using a 6-cylinder engine. Emissions regulations have forced the move, much like the new upcoming F10 M5 getting the more efficient S63 V8 Twin-turbo engine instead of continuing to use the iconic V10.
So far so good. However, according to our source with close ties to BMW M, BMW has not settled on exactly which engine layout the company will use for the F30/F32 M3. Rather, the guys at BMW M are currently testing no less … CONTINUED