STD Tuning Engine spare head for 617 95X

spare head for 617 95X

spare head for 617 95X

 
  • 0 Vote(s) - 0 Average
 
MTUPower
looking for more power on a daily driver

287
03-29-2018, 07:45 PM #1
I bought a wagon block with the head and it's in my garage.  I read somewhere where someone had ported the head on his MB diesel and the results were another 5% more power or so.  Who has experience with this and where can I send my head to to get this done?  I'd like to put a new turbo on and increase the exhaust to 3 inches, plus increase the holes in the prechambers even more than they are after I made them bigger.  Give even more advance timing as well. 

Please advise as to head porting or any other mods... thx

2005 CDI heavily modified 1984 300TD - Myna pump/TMIC/enlarged PC's/HX30Super/W126 II front brakes/Vogtland springs/EGT +Boost gauges/H4 Hella's
MTUPower
03-29-2018, 07:45 PM #1

I bought a wagon block with the head and it's in my garage.  I read somewhere where someone had ported the head on his MB diesel and the results were another 5% more power or so.  Who has experience with this and where can I send my head to to get this done?  I'd like to put a new turbo on and increase the exhaust to 3 inches, plus increase the holes in the prechambers even more than they are after I made them bigger.  Give even more advance timing as well. 

Please advise as to head porting or any other mods... thx


2005 CDI heavily modified 1984 300TD - Myna pump/TMIC/enlarged PC's/HX30Super/W126 II front brakes/Vogtland springs/EGT +Boost gauges/H4 Hella's

R-3350
Dreaming of compounds

182
03-29-2018, 10:26 PM #2
iv done a few 617 heads now and i would say that with a larger turbo the effects are more than 5%. that being said there is some risk in porting these heads far enough to really make a difference as you can breach the port walls into the coolant jacket. also its a very long process i spent something like 30 hours on the last one i did.

85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.
R-3350
03-29-2018, 10:26 PM #2

iv done a few 617 heads now and i would say that with a larger turbo the effects are more than 5%. that being said there is some risk in porting these heads far enough to really make a difference as you can breach the port walls into the coolant jacket. also its a very long process i spent something like 30 hours on the last one i did.


85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.

MTUPower
looking for more power on a daily driver

287
04-02-2018, 05:08 AM #3
looks like I have to find a engine head shop via google and send it to them for flow analysis and porting.
This post was last modified: 04-02-2018, 05:13 AM by MTUPower.

2005 CDI heavily modified 1984 300TD - Myna pump/TMIC/enlarged PC's/HX30Super/W126 II front brakes/Vogtland springs/EGT +Boost gauges/H4 Hella's
MTUPower
04-02-2018, 05:08 AM #3

looks like I have to find a engine head shop via google and send it to them for flow analysis and porting.


2005 CDI heavily modified 1984 300TD - Myna pump/TMIC/enlarged PC's/HX30Super/W126 II front brakes/Vogtland springs/EGT +Boost gauges/H4 Hella's

NZScott
HX30W 73/44mm

398
04-03-2018, 03:32 AM #4
How hard is ultrasonic depth measuring stuff to come by if we want to get rather keen with the die grinder? Probably need a mortgage?


1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




NZScott
04-03-2018, 03:32 AM #4

How hard is ultrasonic depth measuring stuff to come by if we want to get rather keen with the die grinder? Probably need a mortgage?



1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km

1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD




R-3350
Dreaming of compounds

182
04-03-2018, 05:46 PM #5
the ultrasonic units that are easily available work ok and aren't too expensive however the transducer heads are a bit large to work in all the sections of the ports. i used to have access to some nice NDT equipment i used when i did the first head for my car. i worked out that the 617 heads don't tend to have much core shift at most 2-3MM in the thicker sections with port wall thickness around 7-8mm at its thinest. i have some photos from cutting a head into sections somewhere but i cant find them. as for flow benching a head and having a professional port them all the shops i talked to that i would trust to really know what they are doing either didn't want to touch it once i mentioned it was a Mercedes and diesel or wanted well into the 4 figure range to do it. you can do what i did and build your own flow bench and do a lot of research. its not like heads are all that rare or expensive.

85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.
R-3350
04-03-2018, 05:46 PM #5

the ultrasonic units that are easily available work ok and aren't too expensive however the transducer heads are a bit large to work in all the sections of the ports. i used to have access to some nice NDT equipment i used when i did the first head for my car. i worked out that the 617 heads don't tend to have much core shift at most 2-3MM in the thicker sections with port wall thickness around 7-8mm at its thinest. i have some photos from cutting a head into sections somewhere but i cant find them. as for flow benching a head and having a professional port them all the shops i talked to that i would trust to really know what they are doing either didn't want to touch it once i mentioned it was a Mercedes and diesel or wanted well into the 4 figure range to do it. you can do what i did and build your own flow bench and do a lot of research. its not like heads are all that rare or expensive.


85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.

atypicalguy
Holset

555
04-04-2018, 10:34 AM #6
The wagon heads are quite rare in good, rebuildable condition.
atypicalguy
04-04-2018, 10:34 AM #6

The wagon heads are quite rare in good, rebuildable condition.

MTUPower
looking for more power on a daily driver

287
04-05-2018, 06:33 AM #7
There's a shop in NC which I've been talking to which seems like they will be able and willing to do this for me.

2005 CDI heavily modified 1984 300TD - Myna pump/TMIC/enlarged PC's/HX30Super/W126 II front brakes/Vogtland springs/EGT +Boost gauges/H4 Hella's
MTUPower
04-05-2018, 06:33 AM #7

There's a shop in NC which I've been talking to which seems like they will be able and willing to do this for me.


2005 CDI heavily modified 1984 300TD - Myna pump/TMIC/enlarged PC's/HX30Super/W126 II front brakes/Vogtland springs/EGT +Boost gauges/H4 Hella's

 
  • 0 Vote(s) - 0 Average
Users browsing this thread:
 1 Guest(s)
Users browsing this thread:
 1 Guest(s)