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tjts1 · 12-10-2012, 06:44 PM

You're not going to gain MPG by adding a turbo. Sorry. Several people have experimented with wiring the wastegate open for long highway drive to reduce back pressure and improve FE at low load. Its worth about 10-15% improvement depending on how your exhaust is setup. Check the MB forums for more info.

If you're going to go to the trouble of swapping engines you might as well find the newer OM601/02/03 cross flow engines found in the W201 and W124. These engines are substantially more efficient than the OM616 and OM617. Even a non turbo OM601 will be a big improvement from your current 55hp.

12-10-2012, 06:44 PM	#16 (permalink)
tjts1 Banned Join Date: Feb 2008 Location: california Posts: 1,329 Thanks: 24 Thanked 161 Times in 107 Posts	You're not going to gain MPG by adding a turbo. Sorry. Several people have experimented with wiring the wastegate open for long highway drive to reduce back pressure and improve FE at low load. Its worth about 10-15% improvement depending on how your exhaust is setup. Check the MB forums for more info. If you're going to go to the trouble of swapping engines you might as well find the newer OM601/02/03 cross flow engines found in the W201 and W124. These engines are substantially more efficient than the OM616 and OM617. Even a non turbo OM601 will be a big improvement from your current 55hp. Last edited by tjts1; 12-10-2012 at 06:49 PM..