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+--- Thread: OM617 back pressure needs (/showthread.php?tid=5113)
OM617 back pressure needs - Thirdrem - 11-25-2013
I have my '83 300D turbo, and I'm wanting to go straight pipe. Any reasons I shouldn't?? What are the minimum back pressure requirements?? Thanks!
RE: OM617 back pressure needs - MFSuper90 - 11-25-2013
(11-25-2013, 07:10 PM)Thirdrem I have my '83 300D turbo, and I'm wanting to go straight pipe. Any reasons I shouldn't?? What are the minimum back pressure requirements?? Thanks!
No back pressure required. Plus any back pressure will be pre turbo, so straight pipe away!
Mines been straight piped for more than 2 years and I love it still!
RE: OM617 back pressure needs - Simpler=Better - 11-25-2013
It sounds awesome, but can potentially resonate or be droney while cruising. Add a hemholtz tube to get rid of any drone.
RE: OM617 back pressure needs - Thirdrem - 11-27-2013
Sweet!! I'm looking forward to finishing up the straight pipe project!
Thanks a bunch! How has your MPGs been effected as a result of the straight pipe??
RE: OM617 back pressure needs - Simpler=Better - 11-27-2013
(11-27-2013, 03:31 AM)Thirdrem Sweet!! I'm looking forward to finishing up the straight pipe project!
If you have the stock merc exhaust(which is straight through) you shouldn't see any difference. My car had a generic $30 reverse-flow crappy muffler on it, so I saw some kind of improvement
RE: OM617 back pressure needs - carlitosgy6 - 11-27-2013
mine has 3 inch pipe in front of the rear tire and i love it,never too loud,only when towing
RE: OM617 back pressure needs - MFSuper90 - 11-27-2013
I never drove mine with any mufflers or even the stock exhaust so I wouldn't be able to compare mileage :p
RE: OM617 back pressure needs - Thirdrem - 11-28-2013
Sweet!! I'm looking forward to finishing up the straight pipe project!
Thanks a bunch! How has your MPGs been effected as a result of the straight pipe??
RE: OM617 back pressure needs - Simpler=Better - 11-28-2013
(11-28-2013, 04:21 AM)Thirdrem Sweet!! I'm looking forward to finishing up the straight pipe project!
Maybe 1mpg but probably not if you already had a stock system
RE: OM617 back pressure needs - carlitosgy6 - 11-28-2013
i dont think less backpressure will affect negatively,my truck is doing 30 mpg