Quote:
Originally Posted by paul_f
I have a theory about how to setup these boost maps on the DTA that we are going to try on my friends beetle when he has it running again.
You really need a dyno to set it up, and a ignition cut set on the ECU at the highest boost you will ever want to run.
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Paul,
Trust me, its no fun when you have set the overboost (your 'highest boost you will ever want to run') on 1,6 bar/24 psi and repeatingly the ecu cuts out your ignition
violently at 1,6 bar (24 psi) whilst trying to run 18/20 psi.
Its either wastegate boost or overboost cut-out. The window is simply too small.
This turbo EASY goes to 2 bar/30 psi on my motor in just a few hundred rpm. It already overshoot to 1,8 bar/26 psi. Áll this is NOT funny I can assure you. How the engine has survived all the violent cut-outs still surprises me.
So, you see, getting an 'attainable boost' really is not my problem

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Quote:
The tuning of the PID will only work if the target map is set to a real value that can actually be reached.
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I advice you keep the tru-boost for now Sandeep

I really like DTA and it has one of the most advanced PID control algoritms on the market or so I understood, but personally I haven't seen anyone get i working properly, not even the professionals on the DTA-forum...
So, good luck Paul and let me know when you have succeeded, then I would really bow my head to you