The Top Mitsubishi Galant VR-4 Resource

Join the best E39A 1991-1992 Mitsubishi Galant VR-4 community and document your GVR4 journey. Login to browse without most ads.

Not building any boost need help

I just bought 385/2000 and its not building boost I tightened up all the lines and felt a lill better did a boost leak test and no leaks..the car feels like its low on power on suggestiUyons???
 

No car is all stock the boost gage on my car,goes half way only.. on full throttle ... And.no aftermarket gages if that's what u mean
 

Ok i just got done messing with it and the Actuator was not connected to that lil arm not sure what its called newbie here but runs alot better from how it was running before
 

JNR

Well-known member
Joined
Apr 23, 2004
Messages
9,820
Location
ca
That controls your wastegate, which when closed, allows the turbo to build pressure (or compress the incoming air into the engine), or "boost" as they say...On an oem setup, it uses an internal wastegate which is basically a valve that is on the housing and allows exhaust to bypass the turbo, to a degree (even fully open you'd get *some* to spin the turbine...Sounds like the much of the exhaust was allowed to bypass the turbine wheel, so would make sense. Good you fixed it.

I would invest in an aftermarket boost gauge though, as that light bar thing is worthless.
 
Last edited:

I'm accurately thinking of getting some i seen some at Autozone and pepboys but i want somthing that looks clean and flush you guys have anything in mind??
 

When I read your first post thats what I thought of, wastegate actuator arm not connected to the wastegate flap haha. Anyhow, as far as a good reliable boost gauge, autometer makes great gauges in alot of different styles to much your aesthetic needs. They typically run around 60 bucks new
 
Support Vendors who Support the GVR-4 Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications RixRacing RockAuto RTM Racing STM Tuned

Recent Forum Posts

Top