I would like to go turbo with my little wonder and was wondering what the law stated as far as compression ratio's were concerned with these motors. I have Garret T4 doing the force induction and wondered if I could keep the current pistons in place boosting 0.8 bar until such time as I can affort the new pistons, also I believe that the E36 325i pistons could be sufficient for the setup. true false I don't know?
Turbo Charging my 325i
- Thread starter boesman
- Start date
What CR does the 325i run stock?? 9.something : 1??
Things like EVO 3's run 9.0:1 stock, but being a turbo motor to start with it is prolly built stronger.
B16a civic's run turbo's happily on stock internals provided you stay below 0.5bar and they have a 10.5:1 CR.
Can you get different thickness head gaskets for the M20??
You could source a thicker one to lower the CR.
It is always a bit unkown how a NA engine will handle FI, Some don't mind at all & others spit the dumby (ie blow-up)
Things like EVO 3's run 9.0:1 stock, but being a turbo motor to start with it is prolly built stronger.
B16a civic's run turbo's happily on stock internals provided you stay below 0.5bar and they have a 10.5:1 CR.
Can you get different thickness head gaskets for the M20??
You could source a thicker one to lower the CR.
It is always a bit unkown how a NA engine will handle FI, Some don't mind at all & others spit the dumby (ie blow-up)
At the risk of reposting a huge amount of data...please see my earlier post here:
http://forum.bmwboard.com/forum/showthread.php?s=&threadid=486
But to make a long story short... 8.8:1
![[wave]](/images/smilies/icon_smile_wave.gif "Wave [wave]")
http://forum.bmwboard.com/forum/showthread.php?s=&threadid=486
But to make a long story short... 8.8:1
![[:)]](/images/smilies/smile.png "Smile [:)]")
thanx for the input guys