Has anyone built one of these with the new E46 M3 Engine?? ANy links or performance shops anybody know of? Thanks.
definitely not a good candidate for turboing when the stock CR is 11.5:1. bmw tried to get the most out of the S54 (e46 m3 engine code) and also tried to make it reliable at the same time, so it would definitely be a costly rebuild just to make it susceptible to boost..... i think even with 8.5:1 pistons & full engine rebuild for boost, people have still been having problems with the s54 for turboing.cherzra said:I think that engine holds up terrible to turbocharging. It will work but you'll pay a fortune regularly to keep it running.
550orM5 said:Are you making that statement from experience because if you are not then that is one ignorant comment considering BMW engines are considered automotive engineering marvels.
On a more important aspect of my considered project. I will be getting an S54 (E46 M3) engine brand new for free!! So that will lower my costs considerably. I am getting one for free because my dad is building an e46 m3 GTR race car with a M5 PTG race motor in it. But I am thinking about just selling the s54 engine and buying a new E36 motor since they have obd1 computers.
If I use the S54 engine I will build it stronger and with low compression and then just run a suitable supercharger at higher boost loads similar to what I would run on a mild turbo.
Thanks for the interest.