Single turbo Installed, Boost drops

Mobeus

New Member
Mar 11, 2018
1
0
0
Ride
08 335i
Hello folks,
First poster here. I need some help after installing single turbo.
I am unable to reach and maintain target boost. I have checked and quadruple checked for leaks with no success. i performed a leak down test with no leaks present.
I have attached logs on map 6 and map 3. In both maps i get close to target and then it drops and holds steady.
No saftey map indicators come on the JB4 monitor. Also no codes.

Mods include,
Single Turbo
JB4 G5 Iso + MHD BEF
Tial BOV and Wastegate
PR 7" Intercooler
3" Catless DP's

Map 3 target 20 PSI
Map 6 target 16 @ 5000 rpm

Your help is appreciated.

Thanks

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