Msm2004

Finished installing an AEM Intake, FM throttle body, manual boost controller and FM downpipe on my otherwise stock MSM. Mileage is low at 45K.
Boost is set at 10.
Now getting power loss at 5500 RPM in 5th and 6th gear at full throttle, anyone have the same issue and maybe a solution?
Not keen on on the FM signal modifier, don't want to cut into the wiring at the ECU.

18psi

iTrader: (76)

likely hitting boost cut

Msm2004

Don't quite understand how it would be boost cut as I had all the other parts installed except the downpipe and wasn't having this issue, boost controller was set at 10 before the downpipe install as well.
After the downpipe, the power loss started.

acedeuce802

iTrader: (1)

Boost cut would make sense if it happened right after you installed the downpipe. There is now less restriction, increasing the chance for boost creep.

Savington

iTrader: (31)

Free-flowing downpipes increase boost levels through boost creep...

Msm2004

Any advise on a solution?

acedeuce802

iTrader: (1)

Port the wastegate?

18psi

iTrader: (76)

decrease the flow through turbine or raise the limit.

concealer404

iTrader: (3)

Port wastegate outlet on compressor housing.

Re-install stock downpipe.

Install standalone ECU and appropriately-sized injectors and enjoy your newfound power and drivability everywhere.


Take your pick!