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+--- Thread: diesel engine lenghts? (/showthread.php?tid=3836)
diesel engine lenghts? - Gearbound - 08-07-2012
om616-?
om617-?
om601-?
om603-?
om605-?
om606-?
I hear great things about the motor available in the 1987 300tdt which a om606 i believe.
i currently own a om617 :/ (lazy iron dinosaur)
what is the length of these motors in comparison?
what are the tangible(cost effective) modified hp levels of these diesels?
RE: diesel engine lenghts? - aaa - 08-07-2012
The 87 has a 603. The six cylinder 603 and 606 are longer than all the rest of course.
RE: diesel engine lenghts? - mantahead - 08-08-2012
hi,
om606 is just under 31inches from the front pulley to the bell housing.
om605 is 27 inches
RE: diesel engine lenghts? - Gearbound - 08-09-2012
what is the potential hp of a 603?
RE: diesel engine lenghts? - aaa - 08-09-2012
180?
RE: diesel engine lenghts? - Gearbound - 08-10-2012
so thats the hp after mild modification? seems kind of low.
RE: diesel engine lenghts? - aaa - 08-10-2012
What kind of modification? You said cost effective...
RE: diesel engine lenghts? - George3soccer - 08-11-2012
300 or 350 before Rods start bending.
RE: diesel engine lenghts? - Gearbound - 08-12-2012
modifications like injectors,different program for tune,more boost on stock turbine
RE: diesel engine lenghts? - raysorenson - 08-12-2012
(08-12-2012, 03:53 PM)Gearbound modifications like injectors,different program for tune,more boost on stock turbine
There is no wrong way to take this: You need to be reading, not posting.
RE: diesel engine lenghts? - aaa - 08-12-2012
(08-12-2012, 03:53 PM)Gearbound modifications like injectors,different program for tune,more boost on stock turbine
180. You will not get far with it without the upgraded pump.
RE: diesel engine lenghts? - Secondaries - 08-12-2012
(08-12-2012, 04:09 PM)raysorenson(08-12-2012, 03:53 PM)Gearbound modifications like injectors,different program for tune,more boost on stock turbine
There is no wrong way to take this: You need to be reading, not posting.
Bingo. This is why i have 33 posts over the years...
RE: diesel engine lenghts? - Gearbound - 08-13-2012
seems that the om617 is limited to 170-180 hp on stock pump assembly also.... and the original intent was to gather information of the MB diesels regarding size,possibly weight,and mild modification results for the various motors.
RE: diesel engine lenghts? - ronnie - 08-13-2012
I must say that it would be good to have a side by side comparision.
Say no internal engine mods
stock ip, but with better tuning
intake and exhaust mods
Then of course all out, do everything possible , max it can take without breaking.
I really should dyno mine just to see were I am at. To many other things to do.....
RE: diesel engine lenghts? - George3soccer - 08-15-2012
"Then of course all out, do everything possible , max it can take without breaking."
There are endless opportunities to get to these different goals very hard to estimate correctly.
RE: diesel engine lenghts? - ronnie - 08-16-2012
Yes to reach max power there are differant ways to a certain extent, however there will be similarities, and each engine will have a point to which basically it is not worth trying for more, at least with a stock short block. An example is the 617a. I have found that there seems to be agreement that 40 psi boost or so is the max with stock rods and pistons. Rod bending happens at higher boost for this engine. I do not remember what the hp typically is at this power level. But this clearly shows the approximate limit for the 617. Each engine must have it's limits, and it would be nice to see side by comparision.
Highest I have seen claimed, then typical without major work.
616 245hp, 100 -120hp length 24" from bellhousing to front of water pump
617 300hp 170-180hp length 29"
Just not familier with the others, so someone else can fill that in.
RE: diesel engine lenghts? - yankneck696 - 08-17-2012
By what I take out of my studying many different facets of diesels, there is no real "PSI Limit". Now, before I hear the grumbles, check this out...
Total cylinder pressure is where it's at. IT will bend rods.
Bore
Stroke
Squish volume
Static compression
Timing
Volume of fuel injected
QUALITY (speed & atomization) of injection
And always vacuum or boost...
In my new world (24V Cummins) there is quite a variance of "Boost limits" due to ALL of the above issues. Some pop head gaskets at 30 PSI, some get up to 45 PSI with stock gaskets & bolts. It's all in the total setup...
Ed
RE: diesel engine lenghts? - ronnie - 08-18-2012
I think what we are looking for is not a fixed hp number for each engine but an approximate range that could be typically reached.
Yes total cylinder pressure is really the figure, however most do not have any way to get that. generally the higher the boost the higher the cylinder pressure for a given engine.