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Author Topic: MED17.5.5 Boost Problem  (Read 8567 times)
VagHead
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« on: August 07, 2020, 02:35:15 AM »

Hello everyone ! I'am new at forum and tuning world. I'am trying to tune my own car 1.4 tsi 6j ibiza cupra. I have hybrid turbo, intercooler, forge wg , watermeth kit. Now i'am running with 15.5 ignition timing advance but i can't increase my specified boost more than 1.5. I want to 1.8 peak boost. I take 1.7 peak with Forge Wg after that it decreases 1.5 fast. I couldn't increase my specified boost. Anyone can help me about this ?
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florih2
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« Reply #1 on: August 10, 2020, 06:34:12 AM »

Your target boost capped with LDRXN, and Max compressor Ratio,
Please consider reading and fully understanding the s4wiki

Gesendet von meinem ONEPLUS A5000 mit Tapatalk

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VagHead
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« Reply #2 on: August 10, 2020, 04:09:18 PM »

Your target boost capped with LDRXN, and Max compressor Ratio,
Please consider reading and fully understanding the s4wiki

Gesendet von meinem ONEPLUS A5000 mit Tapatalk



I have read the S4wiki. As far as I know there is no LDRXN for MED17.5. Does MDMAXNMOT do the same as LDRXN?
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overspeed
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« Reply #3 on: August 10, 2020, 07:45:57 PM »

Yes, work like ldrmx... but % of maximal torque.

You cant request more than 2590mbar in charge, only on intake... it will eventually go over 2590 and start decrease to achieve 2590 on charge
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Blazius
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« Reply #4 on: August 11, 2020, 01:33:19 AM »

This has been asked many many times.. Its similar problem to me7 but in different clothing, unfortunately for solution you gonna have to pay as nobody wants to share it really...

In addition to that , fairly sure that 1.4 tsi  me17 also has svbl.( could be wrong )
« Last Edit: August 11, 2020, 08:59:18 AM by Blazius » Logged
VagHead
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« Reply #5 on: August 11, 2020, 08:34:27 AM »

Yes, work like ldrmx... but % of maximal torque.

You cant request more than 2590mbar in charge, only on intake... it will eventually go over 2590 and start decrease to achieve 2590 on charge

Thanks for answer
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VagHead
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« Reply #6 on: August 11, 2020, 08:37:18 AM »

Thanks for answer

I look into med17.5.20 1.4 tsi damos file and i couldn't see it . 1 month ago i see the 2650 mbar requested boost with stock wg. Now i couldn't see more than 2500 mbar
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VagHead
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« Reply #7 on: August 16, 2020, 12:51:22 AM »

Hello everyone ! I'am new at forum and tuning world. I'am trying to tune my own car 1.4 tsi 6j ibiza cupra. I have hybrid turbo, intercooler, forge wg , watermeth kit. Now i'am running with 15.5 ignition timing advance but i can't increase my specified boost more than 1.5. I want to 1.8 peak boost. I take 1.7 peak with Forge Wg after that it decreases 1.5 fast. I couldn't increase my specified boost. Anyone can help me about this ?

Solved it thanks for all Smiley
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ktm733
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« Reply #8 on: August 17, 2020, 05:47:28 PM »

Thanks for posting your solution. Really helped the community, keep on taking though.
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VagHead
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« Reply #9 on: September 03, 2020, 07:39:27 AM »

Thanks for posting your solution. Really helped the community, keep on taking though.


I increased KFMIRL %40 from ori file. I ıncreased MDMAXNMOT to  65535 . I tuned some torque maps end of the file. Now I can run 2bar peak and 1.7 cont boost
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ktm733
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« Reply #10 on: September 04, 2020, 07:33:29 PM »

Thank you for helping that community.
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Blazius
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« Reply #11 on: September 05, 2020, 04:42:12 AM »


I increased KFMIRL %40 from ori file. I ıncreased MDMAXNMOT to  65535 . I tuned some torque maps end of the file. Now I can run 2bar peak and 1.7 cont boost

"I ıncreased MDMAXNMOT to  65535" lol.
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nyet
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WWW
« Reply #12 on: September 05, 2020, 09:39:34 AM »

increased 40% IRL across the entire map?

That's not really ideal either Sad
« Last Edit: November 13, 2020, 02:13:01 AM by nyet » Logged

ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
overspeed
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« Reply #13 on: September 05, 2020, 01:16:26 PM »

Even requesting 300% on KFMIRL, MDMAX 100% and PV"stuff" to 3200mbar will not chance you requesting 2599 on charge... only allow you to pass throught this value on manifold... but n75% will decrease until charge pipe stay near 2599mbar.

There are 2 requested pressure, one from torque path (kfmirl/kfmiop/mdmax) and other from turbo protection, that will limit your pressure on 2599 top
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VagHead
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« Reply #14 on: November 13, 2020, 02:06:29 AM »

Thanks for reply !
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