prechambers mods?
prechambers mods?
12-10-2014, 06:42 PM
#41
Hole size,exiting holes end of prechamber, 6% larger works best for me.Tryed 8% larger, performance fell off ,tryed 10% still less, engine less responsive. Test grounds , large mountain 6-8% grade, going from 7,000-9,000ft. Best performance,exiting hole area 2x transfer tube size. Injection nozzles,checked, cleaned ,set . Injection timing 26btc,valves checked, trying to be sure testing was accurate . What was less with larger holes,engine was less smooth,longer to respond to throttle,slower to pull grade. Hope this helps. What was my speed on this grade ,65mph in high gear with more on pedal,could still go faster. 82yr. 300sd,2.88 gears,16x265 tires.
This post was last modified: 12-10-2014, 07:29 PM by Hercules.
Colbalt drill bits work the best, flexible but still hard. Carbide too brittle for smaller holes. I usually use only one drill bit per hole, except the back holes ,hole too close to drilled size,must sharpen bits, small size bits brake easy. Do not need to heat prechambers, Have done eight sets . Using hand drill.
Hole size,exiting holes end of prechamber, 6% larger works best for me.Tryed 8% larger, performance fell off ,tryed 10% still less, engine less responsive. Test grounds , large mountain 6-8% grade, going from 7,000-9,000ft. Best performance,exiting hole area 2x transfer tube size. Injection nozzles,checked, cleaned ,set . Injection timing 26btc,valves checked, trying to be sure testing was accurate . What was less with larger holes,engine was less smooth,longer to respond to throttle,slower to pull grade. Hope this helps. What was my speed on this grade ,65mph in high gear with more on pedal,could still go faster. 82yr. 300sd,2.88 gears,16x265 tires.
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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