BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST - View Single Post

alyabiev · 02-02-2020, 10:02 PM

Quote:

Originally Posted by OzBMR

Quote:

Originally Posted by SC_B5X

So I turned off DSC to log (even though I wasn't spinning) and the corrections completely disappeared. Got a revision today and we turned up the boost a bit as well as increased timing.

Log
https://datazap.me/u/richmichael97/w...33-34-35-36-37

Looking good. Interesting about DSC.

I created a 340i car profile for Virtual Dyno and here's an output based on your 4th gear run. If you can get a 4th gear 100% accelerator from about 2500RPM it'd be good. This one only went 100% from about 3600 RPM. Looks like about 520 whp and 640Nm. Better than stock turbo now!

As the Dorch Stage 1 looks maxed out at that boost level with E40, what about going back to E30 and shoot for 18 PSI up to 4500, then 20 PSI by 5000 RPM, 22 PSI by 6000 and up to 24 PSI up top?

Why does everyone talk about targeting boost with our ECU logic being load based? Boost will vary a lot, because 22psi on a cold morning below sea level is very different from 22psi in a desert hot environment high up in the mountains from a turbo performance perspective.