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Author Topic: MED9 HPFP & LPFP Control  (Read 193881 times)
Dmitrii-VR6T
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« Reply #210 on: October 29, 2021, 12:15:47 PM »


It isn`t the same. Wink


RSQ3 and RS3 are different cars with different controllers and pumps.
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vanrhj
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« Reply #211 on: December 07, 2021, 06:34:49 AM »

Fuel wise it makes little difference on how to do it.

However...

Check if when actual boost = requested boost your actual load is not higher than requested load.
If your actual load is higher than requested load and your fuel is rich then do it through KFKHFM, because that will bring your load down, help with torque intervention and get your timing maps reading correctly again (vice versa if your trim is positive).

However, if it the load looks alright (more or less on target, or slightly below), then fkkvs is the way to go.
Is this only applicable for when actual boost is higher than requested boost?
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vanrhj
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« Reply #212 on: December 08, 2021, 12:10:00 AM »

Also what parentage difference between actual and requested boost is acceptable?
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vanrhj
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« Reply #213 on: December 08, 2021, 02:06:38 AM »

I currently use a TTRS HPFP on smaller turbo cars. Say GTX2867. It seems to hold well at 25psi to 7000rpm. Even after requesting higher pressures through the correct maps the TTRS pump is ok for 30psi on GTX3071.
I use the RS4 controller and TTRS pump but i believe you do not need to controller and it can be done through the correct maps. Has anyone done this?
U mention the TTRS HPFP is it not the LPFP u referring to?
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Misio
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« Reply #214 on: May 18, 2022, 12:32:47 PM »

Guyz what maps should be adjusted when changing FPRV to 160-170b ones ? Im sure i saw it on this forum but cant find now.
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ksone01
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« Reply #215 on: May 20, 2022, 03:45:25 AM »

Guyz what maps should be adjusted when changing FPRV to 160-170b ones ? Im sure i saw it on this forum but cant find now.

You'll find answer in this topic in previous pages (KFPRSOLXXX, KLPROV, PRLN1 ....)  Wink
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vanrhj
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« Reply #216 on: May 24, 2022, 03:38:50 AM »

Hi guys i have an issue. Basically i installed on 2.0 tfsi BWA with gtx2867 an RS3 lpfp with stock bwa pwm controller. But the problem is that the car shuts down at idle after 20-30 minutes. I expected the car could shut down at high loads like in 4th gear at wot or similar and in this way i could act on the duty cycle of lpfp. But at idle?? someone has had the same problem? any solution for this issue? thank you very much to everybody
I had the same problem and find that the controller was overheating.
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vanrhj
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« Reply #217 on: May 24, 2022, 03:40:53 AM »

The BWA LPFP controller is not made to run the RS3 pump. There is a reson the TTRS/RS3 have a complete diffrent LPFP controller.

Jip you are correct. I find mine to be at 98%.
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vanrhj
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« Reply #218 on: May 24, 2022, 03:46:39 AM »

Its should be possible to recode the car to make the RS3 controller to work (I have done this on a Mk6 GTI but its MED17) I will test this on a Golf R to.
Have u done the test on the Golf R and if done can u please share your findings?
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vanrhj
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« Reply #219 on: May 24, 2022, 03:59:51 AM »

Going by your KFNTBKS, you'll spend most of your time in the 500-580kPa range for which you don't appear to be running enough duty cycle. I hold 5.7bar at the red line in block 231 with the following attached.

Also, you'll need to limit your duty cycle. I've found values above 82% will cause controller cut. 77% has enough safety margin and the pump has no problem supplying the required fuel.



gman86 did u use these changes in the maps with Golf R pump and controller or with TTRS pump and controller?
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gman86
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« Reply #220 on: June 04, 2022, 05:01:46 AM »

gman86 did u use these changes in the maps with Golf R pump and controller or with TTRS pump and controller?

RS pump, stock controller.
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mantasos
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« Reply #221 on: June 29, 2022, 02:05:36 AM »

ΤΤRS lfp with stock controller works ok if you limit your currents and even with that fuel is enough for most normal setups. Depending on the fuel request of your setup, controller safe cut will occur easier especially if you do high speed runs.  The best way is to calibrate  whole KFFLAF & axis along with LEPWMMX. Gman is right that under 77-78% max duty it will be ok on most cases.   
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agron25
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« Reply #222 on: September 20, 2022, 11:33:40 AM »

hello
I am looking for addresses for golf gti mk5 BWA 1k0907115j
LPFP Max Duty Cycle (LEPWMMX)
LPFP Duty Cycle (KFFLAF)
LPFP Target Pressure (KFNTBKS)
thanks
my file
https://www.transfernow.net/dl/20220914Wk4TZi30
« Last Edit: September 20, 2022, 11:35:31 AM by agron25 » Logged
agron25
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« Reply #223 on: September 22, 2022, 04:53:22 AM »

does anyone know the addresses?
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adrianmk2
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« Reply #224 on: December 10, 2022, 06:19:40 AM »

I emailed vis about stage 1 pump.
It's 10mm piston.
So
10/2 = 5
5 x 5 = 25
25 x pi x 5 = 392.66
25 x pi x 5.4 = 424.11


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