Prechamber mods
Prechamber mods
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 replaced my 617 chambers and drilled them out one bit size larger in the same orientation and it gave me more power and less smoke. dropped 1/2 second in 0-60 mph. I have a pic somewhere - post it later
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'm pretty positve MB envisaged the best solution for the power level, and emissions , keeping an eye on vibes and noise as the major concern , otherwise all this engines would have been built as DI.
As for my experiments , cocluded that high reving road cars, a opening in the holes help a bit , as every other mod.
High low TQ engines do not seem to benefit the same mod.
Nevertheless there are other easier mods that help much more, wich are valve train related.
Usually we open the neck hole to 8mm, and the 8 around holes to 2.8.
This changes some things in the dinamics off the engine, so up to u to chase it.
FD,
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There are plenty of mod's .... usually they worth small.
I'm pretty positve MB envisaged the best solution for the power level, and emissions , keeping an eye on vibes and noise as the major concern , otherwise all this engines would have been built as DI.
As for my experiments , cocluded that high reving road cars, a opening in the holes help a bit , as every other mod.
High low TQ engines do not seem to benefit the same mod.
Nevertheless there are other easier mods that help much more, wich are valve train related.
Usually we open the neck hole to 8mm, and the 8 around holes to 2.8.
This changes some things in the dinamics off the engine, so up to u to chase it.
FD,
Powered by tractor fuel
I started out by enlarging the burn holes, then based on some posts from another person trying different things I modified the burn tube, then i decided to modify the inside of the chamber under the heat shield face, and then totally machined out the three burn holes to make one slot. I have been running the prechambers with all those mods for about 40K miles. There is some tuning that has to be done (mainly timing advance).
Unless you are going to run a lot of fuel and boost drilling the holes a little bigger is all I would recommend.
Greazzer have you seen the pics of my prechambers i posted on PX. I tried to post them on here but cant.
I started out by enlarging the burn holes, then based on some posts from another person trying different things I modified the burn tube, then i decided to modify the inside of the chamber under the heat shield face, and then totally machined out the three burn holes to make one slot. I have been running the prechambers with all those mods for about 40K miles. There is some tuning that has to be done (mainly timing advance).
Unless you are going to run a lot of fuel and boost drilling the holes a little bigger is all I would recommend.
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