Is it possible to turbocharge a new E46 M3???? wouldn't that be cool!!! or do you guys think a supercharger would be the way to go? i'm not talking about other mods, i'm how you say a "forced-induction fan" and wanna put one of the two on my M3. or maybe a twin turboercharger...what do you guys think?!?!

My opinion? You have chosen the wrong car. You should drive a Nissan GT-R, S4, RS4 and the like!!! M3 is not for you!!

Motorhead

Yea, buy a rice rocket or muscle car.

Unfortunately the compression ratio is so high, perhaps too high for safely managing more than a few psi of boost. And apparently most BMW tuners I've seen don't know too much engine theory because most use a head spacer to drop CR which f*cks the squish up. To do it right you need new pistons... all in all a costly endeavor. - Beau

hey ....i think it's possible , i am thinking the same way as u do ....and i've asking alot of questions about turbocharge for M3 ...nothing is impossible within money ......

but supercharged will be more easiler and safter.....but it doesn't give out as much power as turbo do ....

I agree that the supercharger would be the way to go. In a while, DINAN should have their's out (but seeing how they still don't have one for the 330Ci, i'm not sure). And since all of our M3's our pretty fresh out of the factory, the new engines should be able to take the added stress well (compared to these kids with civics that start stressing the engine with superchargers at 80k). What about in the long run? Are turbos more reliable than superchargers? I've had my heart set on adding that supercharger but if a turbo is "safer" than i might change my mind...

yeah, but i would much rather have a turbo than a S/C. superchargers actually take power from your engine to run themselves, whereas turbos use exhause gasses and thus can generate more horsepower. also, what about twin turbos???? http://m3forum.com/ubb/smile.gif

well turbom3 ...single turbo ( big size such as T66 or T88) gives the engine alot of power ....but they r too slow to get full boost, twin turbos r faster. but both of them r hard to put on a M3, it's really hard to modify a M3.....cuz it's not like honda or those cheap japanese ricey rocket, so S/C will be easier and safer for M3, it works well on M3! but i'd love to see a M3 with a Turbo even it's not mine .......

and make sure if M3's engine or tranny r able to handle that much power from turbo!