Measure boost from OBD2
Thread Starter
Senior Member
Joined: Mar 2002
Posts: 417
Likes: 1
From: Vancouver, BC
W212 E63
Measure boost from OBD2
I have tried to log the boost via OBD2 Bluetooth adapter along with the Android program "Torque", I could only see 22.5PSI peak boost up till end of 4th gear in both S/M mode with ESP sport. I am just wondering have anyone of you guys tried to measure boost, I am still far from the 26PSI advertised from Mercedes.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 1,699
Likes: 4
From: Tucson, AZ
C63 AMG
Mercedes advertises 26.1 psi but I want to bid that the 26.1psi are for a fraction of a second on the initial full boost spike. You are probably reading correctly on the mid 22's psi. I can see the turbo boosting higher initially then slightly coming down. 22.5 psi is still a very healthy reading. My .2c
Senior Member
Joined: Dec 2013
Posts: 435
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From: CT
03 Lexus IS300 (old faithful) / 91 3000GT VR-4 / 14 CLA45 AMG / 11 BMW X6M
I have tried to log the boost via OBD2 Bluetooth adapter along with the Android program "Torque", I could only see 22.5PSI peak boost up till end of 4th gear in both S/M mode with ESP sport. I am just wondering have anyone of you guys tried to measure boost, I am still far from the 26PSI advertised from Mercedes.
Senior Member
Joined: Nov 2013
Posts: 436
Likes: 1
CLA45 AMG
So MB built the engine to handle 26 psi but tuned it conservatively. That means that there's still room for improvement. Tuners will eventually get us a way to turn up boost across the rev range, but frankly I'd be satisfied with the current available tune for daily driving purposes.
