OM617 Exhaust Headers - PeachParts Mercedes-Benz Forum

Scruffyguy1981 · #1 11-19-2009, 07:37 PM

Has anyone here built an exhaust header for your OM617 Turbo? I'm looking into doing a header for my 300SD and just wondered if it had been done before what the lengths and diameters were that someone came up with.

Simpler=Better · #2 11-20-2009, 09:10 AM

This has been brought up before, so far no one has posted back with results.

If you do work it out, please let us know the dimensions!

MTUpower · #3 11-20-2009, 10:17 AM

Why are you doing this, and what is your goal? Thanks.

MTUpower · #4 11-23-2009, 06:26 AM

My collectors have been process coated- similar to jet hot coatings. It keeps the exhaust hot and thus moving faster past the headers. It also allows a quicker cool down when less fuel is being burned. I've removed the stock muffler and put in a straight pipe- it's only marginally louder, but the power increase via but dyno and spoolup time are both improved. Too many folks have complained of droning in the cabin if you remove the resonator for me to attempt this. Going to a larger exhaust can also be time consuming, so these are the quickest, most easy mods to improve the stock system IMHO.

JTY · #5 01-04-2010, 06:41 AM

Quote:

Originally Posted by Scruffyguy1981

Has anyone here built an exhaust header for your OM617 Turbo? I'm looking into doing a header for my 300SD and just wondered if it had been done before what the lengths and diameters were that someone came up with.

Here's my setup with custom manifold from last spring 2009:

If you need same manifold for OM617 it's possible to buy pretty decent price.

Eric · #6 01-04-2010, 09:18 AM

Quote:

Originally Posted by Scruffyguy1981

Has anyone here built an exhaust header for your OM617 Turbo?

why? the stock one is more than good enough for anything the 617 can handle. just bolt on a holset hx35 from a cummins and go for it! the turbo in the pictures above is going to be very slow spooling up!

JTY · #7 01-04-2010, 02:32 PM

Quote:

Originally Posted by Eric

why? the stock one is more than good enough for anything the 617 can handle. just bolt on a holset hx35 from a cummins and go for it! the turbo in the pictures above is going to be very slow spooling up!

Stock manifold is too restrictive and is going to kill your engine with any more than 1bar boost. Been there than that

If you want over 200hp from your OM617 you need better exhaust manifold and intake manifold also bigger turbo like the master i have.

Eric · #8 01-04-2010, 04:24 PM

Quote:

Originally Posted by JTY

Stock manifold is too restrictive and is going to kill your engine with any more than 1bar boost.

no it wont. many people have run more than 15psi with the stock turbo even without any problems!

JTY · #9 02-07-2011, 06:26 AM

Quote:

Originally Posted by Eric

no it wont. many people have run more than 15psi with the stock turbo even without any problems!

FOr sure they have, but i'm not talking about stock turbo, stock IP etc.
If you want serious power you need to go beyond stock exhaust manifold and intake manifold

RichardBergis · #10 02-07-2011, 11:46 AM

The head is the limit to power. Invest in porting instead of manifolds.

josha37 · #11 02-07-2011, 11:51 AM

I think the header is sexy...

ngarover · #12 02-07-2011, 07:24 PM

Quote:

Originally Posted by josha37

I think the header is sexy...

"He thinks your headers sexy".... sung to the she thinks my tractors sexy song...

47dodge · #13 02-25-2011, 06:18 PM

has anyone tryed headers on a 616?

graysil80 · #14 08-06-2013, 04:04 PM

i know this thread has been dead for a while, buuut i was wondering if there was a finished pic of this manifold. i see its not cut out yet for the intake runners just wondering what it ended looking like.

and also tubular exhaust thread bump maybe

510300sd · #15 02-05-2014, 10:11 PM

Bump. I'd like to also know if there are any more updates regarding upgrading stock exhaust manifolds.