The start of my Turbocharged E320 project
Last edited by Max Hughes; Jun 20, 2008 at 11:44 PM.


Turbo engines are usually around 7:1
Do you change the pistons or the cylinder head in order to reduce the ratio?
(I hope I didn't miss this part if explained earlier!)
Ozcan: Im not modifing the engine internally yet so its keeping the 10.2:1 ratio for now, but i know of 3 M104's, two turbo'd and one supercharged, that are using stock internals and two are boosting above 10psi. The supercharged one(12psi) has been going on for thousands of miles starting with 173K on the odo.
Last edited by Max Hughes; Jun 20, 2008 at 11:47 PM.


Good luck.
The Best of Mercedes & AMG
Turbo engines are usually around 7:1
Do you change the pistons or the cylinder head in order to reduce the ratio?
(I hope I didn't miss this part if explained earlier!)
Most turbo engines these days run between an 8.5 and 9:1 compression ratio. He can run 10-15 psi on a 10.2 motor, especially with an intercooler and alky, but he will need to be a bit conservative with ignition timing advance.


Made a EGR block off plate today. Question how does it get to the intake or does it?:
Made a EGR block off plate today. Question how does it get to the intake or does it?: QUOTE]
This question will give you a circular reference error if you put it into Excel
Heres some tedious work i did today
relocated the coolant pump thing and cut the maf way down on both sides.


Last edited by Max Hughes; Jul 8, 2008 at 10:13 PM.






