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Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion > Diesel Performance Tuning

 
 
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Old 01-17-2013, 03:17 AM
Oxen's Avatar
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Join Date: Jan 2013
Posts: 48
starting from bare block 617

hi. new but this forum has a lot of info on here. so i've read some and now want to ask some questions.

please keep in mind i figure some of what i have read is nonsense



so what i have is a completely torn down 617 turbo diesel. so i want to put it together good and get some more poop when climing a hill or jumping on the freeway. "yes i know it will be hard to get it too wheelie but" thats what i want it too do. i already have the wheelie bars and ....... JOKE

ok so building a 617 from the ground up.

1. let me ask this because i did not find or read this any ware yet. can i deck the block and head a little to gain some compression and get a little more on throttle response wake it up some? beyond the pump adjustments. i dont plan to rev over 3500 rpm. gearing is set to be @22xxrpm ='s 60mph 5th gear. with my trans and gears.

2. now how much boost will the stock pump handle . some say 9 psi others claim 20psi .i don't believe a stock pump has fuel for 20. so safely "with use of a inter cooler" max useable boost for available fuel?

3. timing advance. some claim 26*. inter-cooled and a pump adjusted to do so. now what should i expect of a advanced pump. is it possible to det & ping like a gasser?

what i am doing is putting this in my jeep. i have swapped it to 1 ton axles 538 gears with dual transfer cases 39.5 inch tires. also added weight of bumpers, rock sliders and some roll cage & gear. so i want to pump the 617 up some. to tote the extra weight around on the street / freeway to go wheel / rock crawl.

last but not least. mercerdes has my new cylinder liners and pelican parts has pretty much every thign else. only crummy part is all the victor head gaskets. can i get a Elring or Goetzy? or what would you use. and are head studs a worth while investment? for a disel just running a bit over stock. not looking for massive torque but a notable increase. say like is 25-40fltbs more a lot to ask for?
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