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BMW M50 alpha N - speed density boost tuning

EFI Tuning Fundamentals

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Hi, I have a BMW M50 tuned on alpha N, it runs pretty good, i have tried speed density but the engine doesn’t have great vacuum, so bad resolution. Now I installed a rotrex supercharger. Any suggestion tuning wise to have accurate afr.

Running a Plug and Play Kdata Ecu, based on a Mega Squirt 3 I belive, Tunerstudio.

BMW M50 stroker 3.0L 11.5:1 CR

M54 Intake cam, M50 non vanos intake cam on exhaust

Rotrex supercharger 6-7 psi

440cc injectors

Water Meth injection

Tunerstudio based ecu

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