prechambers mods?

STD Tuning Engine prechambers mods?

prechambers mods?

prechambers mods?

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MTUPower

looking for more power on a daily driver

287

02-08-2015, 07:34 PM #94

(02-08-2015, 09:55 AM)barrote MTU wich engine is yours? and what size hole did u used?
i have a set of prechambers for 605 drilled at 3mm the 8 around holes and 2mm at the center one. since i dont have all the tools, it takes me some more time than expected. so still on the box.
i´ll post my results.
regards

I have an OM 617-952 in a 1984 300TD and the OM648 in a 2005 E320 CDI. This was for the 617.

(02-08-2015, 11:08 AM)led-panzer Here is my theory.

Stock Holes:
Middle hole = .132
Either side of middle hole = .120
Back holes = .092
Bottom hole = .078

The area of all stock holes = .05432

25% Enlargement:
Middle hole = .165
Ether side of middle hole = .150
Back holes = .115
Bottom hole = .097

The area of 25% enlarged holes = .08483

The area of the 8mm burn tube = .07787

By exceeding the area of the burn tube, you've eliminated the holes as a restriction, because they flow more than the burn tube.

Of course you've achieved the same thing. And it seems it works to great effect. My theory of increasing the hole size but keeping the hole sizes still proportional to each other is to hopefully preserve whatever flow pattern or swirl that mercedes was trying to achieve.

Were you able to fit the 5/64's drill bit into your bottom hole? I could not and that's what I drilled it with. Otherwise you are saying you are going to enlarge them less than what I did, save the bottom hole. I also enlarged all three front holes to the same size. My total is .8411- slightly less than your plan, due to your larger bottom hole. I could fit a 1/8 into the two "front" holes- which makes them .125.

Water/methanol injection is also on the list of future mods....

This post was last modified: 02-08-2015, 07:57 PM 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

02-08-2015, 07:34 PM #94

(02-08-2015, 09:55 AM)barrote MTU wich engine is yours? and what size hole did u used?
i have a set of prechambers for 605 drilled at 3mm the 8 around holes and 2mm at the center one. since i dont have all the tools, it takes me some more time than expected. so still on the box.
i´ll post my results.
regards

I have an OM 617-952 in a 1984 300TD and the OM648 in a 2005 E320 CDI. This was for the 617.

(02-08-2015, 11:08 AM)led-panzer Here is my theory.

Stock Holes:
Middle hole = .132
Either side of middle hole = .120
Back holes = .092
Bottom hole = .078

The area of all stock holes = .05432

25% Enlargement:
Middle hole = .165
Ether side of middle hole = .150
Back holes = .115
Bottom hole = .097

The area of 25% enlarged holes = .08483

The area of the 8mm burn tube = .07787

By exceeding the area of the burn tube, you've eliminated the holes as a restriction, because they flow more than the burn tube.

Of course you've achieved the same thing. And it seems it works to great effect. My theory of increasing the hole size but keeping the hole sizes still proportional to each other is to hopefully preserve whatever flow pattern or swirl that mercedes was trying to achieve.

Were you able to fit the 5/64's drill bit into your bottom hole? I could not and that's what I drilled it with. Otherwise you are saying you are going to enlarge them less than what I did, save the bottom hole. I also enlarged all three front holes to the same size. My total is .8411- slightly less than your plan, due to your larger bottom hole. I could fit a 1/8 into the two "front" holes- which makes them .125.

Water/methanol injection is also on the list of future 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

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Messages In This Thread

prechambers mods? - by Tito - 06-01-2014, 04:05 PM

RE: prechambers mods? - by raysorenson - 06-01-2014, 06:37 PM

RE: prechambers mods? - by MFSuper90 - 06-01-2014, 07:30 PM

RE: prechambers mods? - by led-panzer - 06-01-2014, 08:16 PM

RE: prechambers mods? - by MFSuper90 - 06-03-2014, 02:28 PM

RE: prechambers mods? - by led-panzer - 06-03-2014, 08:30 PM

RE: prechambers mods? - by Tito - 06-02-2014, 05:53 AM

RE: prechambers mods? - by Simpler=Better - 06-02-2014, 07:14 AM

RE: prechambers mods? - by raysorenson - 06-02-2014, 08:51 PM

RE: prechambers mods? - by Tito - 06-03-2014, 03:49 PM

RE: prechambers mods? - by MFSuper90 - 06-03-2014, 09:35 PM

RE: prechambers mods? - by sassparilla_kid - 06-03-2014, 10:22 PM

RE: prechambers mods? - by Captain America - 06-03-2014, 10:52 PM

RE: prechambers mods? - by baldur - 06-04-2014, 05:44 AM

RE: prechambers mods? - by Simpler=Better - 06-04-2014, 08:56 AM

RE: prechambers mods? - by sassparilla_kid - 06-04-2014, 09:41 AM

RE: prechambers mods? - by Simpler=Better - 06-04-2014, 11:15 AM

RE: prechambers mods? - by MFSuper90 - 06-04-2014, 03:45 PM

RE: prechambers mods? - by Simpler=Better - 06-05-2014, 07:38 AM

RE: prechambers mods? - by sassparilla_kid - 06-05-2014, 09:07 AM

RE: prechambers mods? - by MFSuper90 - 06-05-2014, 09:23 AM

RE: prechambers mods? - by Duncansport - 06-05-2014, 09:29 AM

RE: prechambers mods? - by MFSuper90 - 06-05-2014, 09:32 AM

RE: prechambers mods? - by Simpler=Better - 06-05-2014, 11:17 AM

RE: prechambers mods? - by OM616 - 06-05-2014, 12:05 PM

RE: prechambers mods? - by Captain America - 06-06-2014, 11:15 PM

RE: prechambers mods? - by sassparilla_kid - 06-05-2014, 02:40 PM

RE: prechambers mods? - by barrote - 06-08-2014, 01:19 PM

RE: prechambers mods? - by Tito - 06-09-2014, 02:33 AM

RE: prechambers mods? - by Tito - 12-06-2014, 07:34 AM

RE: prechambers mods? - by hooblah - 12-06-2014, 12:47 PM

RE: prechambers mods? - by Tito - 12-06-2014, 12:57 PM

RE: prechambers mods? - by EDH_Performance - 12-06-2014, 07:14 PM

RE: prechambers mods? - by barrote - 12-08-2014, 02:14 PM

RE: prechambers mods? - by hooblah - 12-08-2014, 05:13 PM

RE: prechambers mods? - by barrote - 12-09-2014, 09:16 AM

RE: prechambers mods? - by swatmugga - 12-08-2014, 05:59 PM

RE: prechambers mods? - by Tito - 12-09-2014, 03:06 PM

RE: prechambers mods? - by EDH_Performance - 12-08-2014, 07:24 PM

RE: prechambers mods? - by barrote - 12-09-2014, 04:15 PM

RE: prechambers mods? - by Hercules - 12-10-2014, 06:42 PM

RE: prechambers mods? - by Simpler=Better - 12-10-2014, 10:12 PM

RE: prechambers mods? - by Tito - 12-11-2014, 09:22 AM

RE: prechambers mods? - by sassparilla_kid - 12-11-2014, 08:18 PM

RE: prechambers mods? - by raidaru - 12-12-2014, 04:43 AM

RE: prechambers mods? - by Tito - 12-12-2014, 06:57 AM

RE: prechambers mods? - by DiseaselWeasel - 12-12-2014, 10:50 AM

RE: prechambers mods? - by Duncansport - 12-12-2014, 11:26 AM

RE: prechambers mods? - by barrote - 12-12-2014, 03:32 PM

RE: prechambers mods? - by Tito - 12-13-2014, 11:46 AM

RE: prechambers mods? - by barrote - 12-13-2014, 02:37 PM

RE: prechambers mods? - by OM616 - 12-13-2014, 12:28 PM

RE: prechambers mods? - by Petar - 12-13-2014, 03:58 PM

RE: prechambers mods? - by DiseaselWeasel - 12-13-2014, 05:14 PM

RE: prechambers mods? - by starynovy - 12-14-2014, 05:45 AM

RE: prechambers mods? - by Tito - 12-14-2014, 04:43 AM

RE: prechambers mods? - by DiseaselWeasel - 12-14-2014, 07:21 AM

RE: prechambers mods? - by Petar - 12-15-2014, 04:19 AM

RE: prechambers mods? - by barrote - 12-15-2014, 02:34 PM

RE: prechambers mods? - by CRD4x4 - 12-28-2014, 06:17 PM

RE: prechambers mods? - by barrote - 12-30-2014, 05:14 PM

RE: prechambers mods? - by sassparilla_kid - 12-14-2014, 10:40 PM

RE: prechambers mods? - by MFSuper90 - 12-14-2014, 10:59 PM

RE: prechambers mods? - by MTUPower - 12-27-2014, 10:19 PM

RE: prechambers mods? - by Tito - 12-28-2014, 04:43 AM

RE: prechambers mods? - by MTUPower - 01-10-2015, 12:10 AM

RE: prechambers mods? - by MTUPower - 01-12-2015, 01:55 PM

RE: prechambers mods? - by sassparilla_kid - 01-13-2015, 12:09 PM

RE: prechambers mods? - by MTUPower - 01-14-2015, 09:02 AM

RE: prechambers mods? - by MTUPower - 01-14-2015, 06:11 PM

RE: prechambers mods? - by Eric78 - 01-15-2015, 04:21 AM

RE: prechambers mods? - by MTUPower - 01-15-2015, 09:55 AM

RE: prechambers mods? - by Eric78 - 01-16-2015, 07:09 AM

RE: prechambers mods? - by MTUPower - 01-16-2015, 09:24 AM

RE: prechambers mods? - by raysorenson - 01-16-2015, 09:43 AM

RE: prechambers mods? - by barrote - 01-16-2015, 03:22 PM

RE: prechambers mods? - by raidaru - 01-23-2015, 06:12 AM

RE: prechambers mods? - by MTUPower - 01-24-2015, 09:45 AM

RE: prechambers mods? - by led-panzer - 02-02-2015, 12:31 PM

RE: prechambers mods? - by MTUPower - 02-02-2015, 08:04 PM

RE: prechambers mods? - by Sleek~silver602 - 02-02-2015, 08:34 PM

RE: prechambers mods? - by MTUPower - 02-03-2015, 09:44 AM

RE: prechambers mods? - by MTUPower - 02-06-2015, 11:48 PM

RE: prechambers mods? - by led-panzer - 02-07-2015, 09:36 PM

RE: prechambers mods? - by MTUPower - 02-07-2015, 11:44 PM

RE: prechambers mods? - by OM616 - 02-07-2015, 11:57 AM

RE: prechambers mods? - by MTUPower - 02-07-2015, 05:58 PM

RE: prechambers mods? - by raidaru - 02-08-2015, 01:30 PM

RE: prechambers mods? - by DiseaselWeasel - 02-08-2015, 05:25 AM

RE: prechambers mods? - by led-panzer - 02-08-2015, 08:26 AM

RE: prechambers mods? - by MTUPower - 02-08-2015, 09:15 AM

RE: prechambers mods? - by barrote - 02-08-2015, 09:55 AM

RE: prechambers mods? - by MTUPower - 02-08-2015, 07:34 PM

RE: prechambers mods? - by led-panzer - 02-08-2015, 11:08 AM

RE: prechambers mods? - by MTUPower - 02-09-2015, 09:41 PM

RE: prechambers mods? - by MTUPower - 02-10-2015, 05:57 PM

RE: prechambers mods? - by turbojeep - 02-10-2015, 09:26 PM

RE: prechambers mods? - by MTUPower - 02-10-2015, 10:01 PM

RE: prechambers mods? - by barrote - 02-16-2015, 03:12 PM

RE: prechambers mods? - by MTUPower - 02-16-2015, 06:23 PM

RE: prechambers mods? - by barrote - 02-17-2015, 08:06 AM

RE: prechambers mods? - by OM616 - 02-17-2015, 12:35 PM

RE: prechambers mods? - by Captain America - 02-24-2015, 01:35 AM

RE: prechambers mods? - by OM616 - 02-24-2015, 12:34 PM

RE: prechambers mods? - by Captain America - 02-25-2015, 10:07 PM

RE: prechambers mods? - by barrote - 02-17-2015, 02:59 PM

RE: prechambers mods? - by OM616 - 02-17-2015, 06:51 PM

RE: prechambers mods? - by barrote - 02-18-2015, 05:09 AM

RE: prechambers mods? - by barrote - 02-23-2015, 06:27 AM

RE: prechambers mods? - by baldur - 02-24-2015, 06:47 AM

RE: prechambers mods? - by raysorenson - 02-24-2015, 09:13 AM

RE: prechambers mods? - by barrote - 02-24-2015, 04:38 PM

RE: prechambers mods? - by barrote - 02-25-2015, 03:10 PM

RE: prechambers mods? - by raysorenson - 02-25-2015, 07:11 PM

RE: prechambers mods? - by NZScott - 02-26-2015, 02:21 AM

RE: prechambers mods? - by barrote - 02-26-2015, 02:29 PM

RE: prechambers mods? - by OM616 - 02-26-2015, 06:11 PM

RE: prechambers mods? - by NZScott - 02-26-2015, 10:38 PM

RE: prechambers mods? - by OM616 - 02-27-2015, 11:54 AM

RE: prechambers mods? - by barrote - 02-27-2015, 05:37 AM

RE: prechambers mods? - by raysorenson - 02-27-2015, 12:39 PM

RE: prechambers mods? - by Greazzer - 02-27-2015, 01:29 PM

RE: prechambers mods? - by sassparilla_kid - 03-02-2015, 03:11 AM

RE: prechambers mods? - by MFSuper90 - 03-02-2015, 09:58 AM

RE: prechambers mods? - by barrote - 03-21-2015, 09:27 AM

RE: prechambers mods? - by PanicButton - 08-15-2015, 04:48 AM

RE: prechambers mods? - by raysorenson - 08-15-2015, 10:05 PM

RE: prechambers mods? - by MFSuper90 - 08-16-2015, 01:38 AM

RE: prechambers mods? - by MTUPower - 02-18-2018, 11:27 PM

RE: prechambers mods? - by Hercules - 02-19-2018, 06:51 AM

RE: prechambers mods? - by OM616 - 02-19-2018, 12:54 PM

RE: prechambers mods? - by Hercules - 02-19-2018, 04:32 PM

RE: prechambers mods? - by OM616 - 02-19-2018, 07:13 PM

RE: prechambers mods? - by Hercules - 02-19-2018, 08:52 PM

RE: prechambers mods? - by Hercules - 02-19-2018, 09:41 PM

RE: prechambers mods? - by OM616 - 02-20-2018, 01:42 AM

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