Hookey Posted August 10, 2022 Share Posted August 10, 2022 Hi there, I have tuned 8 of these cars so far, all fg models and 1 ba. Contrary to popular techniques I always tune in closed loop then back fill the wgdc table from the logged wgdc. This takes longer, but I have had good success with it so far. Until now lol. This is my personal car fg mk1 F6 525 pump id1050x pirotta flex fuel, GTX3582, 45mm external gate off housing. 3.5 xforce. I haven't done springs yet which is why I have the boost tapering off at high rpm. The issue I am having is I have a boost error of 1 to 1.5 psi. I am currently commanding 20psi. (boost by gear). This error was worse (2.5psi) I then upped the wgdc from 0.55 to 0.7 which is in the file now. This helped a lot but I noticed in the log that the closed loop is only commanding 0.4 wgdc roughly. I made the hysteresis smaller so it tryed harder to get to 20psi which didn't help. I have upped the gain 30 percent which didn't help so I put it back. I thought about putting 0.72 in the lower wgdc cells to see if it would get to 20psi but I would like to know why the logged dc is way below my initial DC in WGDC table. I made sure I did both petrol and E85 tables as well so it wasn't an interpolation issue. I can put this in Open Loop and do it that way but I thought id see what you guys think. Thanks Mark 05-08-2022 11-50-44 AM Log.teclog FRF560_fan&dc.tec Quote Link to comment Share on other sites More sharing options...
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