Quote:
Originally Posted by Luckrider
Ahhh.... okay. Boost threshold is higher than I originally thought then. Not bad, but I doubt you even broke 300 wtq.
Yep... Just did the math, if 387 is at 7k (totally reasonable to assume based on the stock cam profile) then TQ is 290. I am sure it is probably peaking at boost threshold closer to 4k and maybe just barely breaking 300. Still respectable for reasonable amounts of boost.
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It peaked before 7k due to the boost tapering from the soft wastegate spring. More like 6-6.5k. You can see the chart at the end of the video. The run at 11psi held boost to redline and peaked above 7k.
The boost threshold is more a function of programming than anything else. It's not even targeting full boost until after 4krpm at higher boost levels. Targeting high boost before then just results in excessive stress on the engine (and wheelspin lol). I think at 1.8bar absolute target it's something like 4200rpm that I have it set to be at full boost now. When it was running an mbc it would make more boost much faster, but you certainly wouldn't be getting anywhere faster
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