good VNT upgrade for a K14
good VNT upgrade for a K14
08-16-2018, 05:16 PM
#27
(08-16-2018, 03:54 PM)jav1 That's surprising on the manifold. I'm following this: https://forum.ih8mud.com/threads/white-l...338/page-2. Lots of good info and it seems he got the probe in the manifold.
On the VNT- are you using an N75 valve for the vacuum control? I presume what your referring to as the stop is just the free length on the actuator arm? That's how the TDI is setup and if memory serves, the extended position set the vanes as closed as they should go without constricting the exhaust enough to effect idle. The actuator then opens the vanes as requested boost levels are approached to prevent an over-boost and to limit boost when loads are not present.
I presume baldur will have to setup another PID strategy for VNT control? Or are you guys trying to control Boost as it relates to exhaust back pressure as well?
We will start out with using the exhaust back pressure only as a reference for tuning the vane position. I have added a map to the boost control that lets one specify the control range of the boost control as a function of engine speed and boost level. This will prevent the vanes from going full closed on transients at high engine speeds, preventing them from restricting air flow too much on the spool up, but the control loop will target boost pressure and not exhaust back pressure.
Baldur Gislason
(08-16-2018, 03:54 PM)jav1 That's surprising on the manifold. I'm following this: https://forum.ih8mud.com/threads/white-l...338/page-2. Lots of good info and it seems he got the probe in the manifold.
On the VNT- are you using an N75 valve for the vacuum control? I presume what your referring to as the stop is just the free length on the actuator arm? That's how the TDI is setup and if memory serves, the extended position set the vanes as closed as they should go without constricting the exhaust enough to effect idle. The actuator then opens the vanes as requested boost levels are approached to prevent an over-boost and to limit boost when loads are not present.
I presume baldur will have to setup another PID strategy for VNT control? Or are you guys trying to control Boost as it relates to exhaust back pressure as well?
We will start out with using the exhaust back pressure only as a reference for tuning the vane position. I have added a map to the boost control that lets one specify the control range of the boost control as a function of engine speed and boost level. This will prevent the vanes from going full closed on transients at high engine speeds, preventing them from restricting air flow too much on the spool up, but the control loop will target boost pressure and not exhaust back pressure.
Baldur Gislason
Messages In This Thread
good VNT upgrade for a K14 - by 50harleyrider - 07-04-2018, 01:39 PM
RE: good VNT upgrade for a K14 - by Mr.Emo - 07-04-2018, 02:17 PM
RE: good VNT upgrade for a K14 - by R-3350 - 07-04-2018, 04:17 PM
RE: good VNT upgrade for a K14 - by atypicalguy - 07-13-2018, 12:31 AM
RE: good VNT upgrade for a K14 - by 50harleyrider - 07-04-2018, 07:33 PM
RE: good VNT upgrade for a K14 - by R-3350 - 07-04-2018, 08:45 PM
RE: good VNT upgrade for a K14 - by 50harleyrider - 07-12-2018, 10:58 PM
RE: good VNT upgrade for a K14 - by R-3350 - 07-13-2018, 10:50 AM
RE: good VNT upgrade for a K14 - by 50harleyrider - 07-24-2018, 07:30 PM
RE: good VNT upgrade for a K14 - by Austincarnut - 08-06-2018, 09:40 PM
RE: good VNT upgrade for a K14 - by Petar - 08-07-2018, 01:56 AM
RE: good VNT upgrade for a K14 - by Mr.Emo - 07-25-2018, 02:56 AM
RE: good VNT upgrade for a K14 - by 50harleyrider - 07-25-2018, 06:19 AM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-06-2018, 02:57 PM
RE: good VNT upgrade for a K14 - by starynovy - 08-06-2018, 03:27 PM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-07-2018, 06:04 PM
RE: good VNT upgrade for a K14 - by MTUPower - 08-13-2018, 11:54 AM
RE: good VNT upgrade for a K14 - by R-3350 - 08-08-2018, 12:00 AM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-08-2018, 06:29 AM
RE: good VNT upgrade for a K14 - by R-3350 - 08-08-2018, 09:20 AM
RE: good VNT upgrade for a K14 - by Mr.Emo - 08-08-2018, 01:27 PM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-15-2018, 01:59 PM
RE: good VNT upgrade for a K14 - by jav1 - 08-15-2018, 02:31 PM
RE: good VNT upgrade for a K14 - by Petar - 08-15-2018, 02:36 PM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-16-2018, 02:43 PM
RE: good VNT upgrade for a K14 - by jav1 - 08-16-2018, 03:54 PM
RE: good VNT upgrade for a K14 - by baldur - 08-16-2018, 05:16 PM
RE: good VNT upgrade for a K14 - by barrote - 08-17-2018, 12:09 PM
RE: good VNT upgrade for a K14 - by jav1 - 08-17-2018, 12:56 PM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-17-2018, 06:32 PM
RE: good VNT upgrade for a K14 - by jav1 - 08-17-2018, 08:59 PM
RE: good VNT upgrade for a K14 - by atypicalguy - 12-08-2018, 01:30 PM
RE: good VNT upgrade for a K14 - by 50harleyrider - 08-07-2019, 12:25 PM
RE: good VNT upgrade for a K14 - by jav1 - 08-07-2019, 01:37 PM
RE: good VNT upgrade for a K14 - by Tobulus - 08-07-2019, 02:33 PM
RE: good VNT upgrade for a K14 - by Agos - 10-19-2023, 04:13 PM
Users browsing this thread:
1 Guest(s)
1 Guest(s)
Users browsing this thread:
1 Guest(s)
1 Guest(s)