spare head for 617 95X
spare head for 617 95X
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
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
85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.
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.
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
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
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
85 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.
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.
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
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
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