Help boost bleeding off cant figure out why

[luvmygst]

Im working on a friends car. We just installed a tubular manifold and aeromotive FPR. Thats when the problem started. The car has the following mods. FP green, greddy FMIC, O2 dump , 3" exhaust. and a profec II. We have changed the boost controller to my manual one and it hits 16 then bleeds right back to 11. We have tried 3 different boost controllers. same results. None of these boost problems started until we installed the DNP tubular manifold. Any ideas would be greatly appreciated.

And yes we have done a boost leak test.

Thanks

 

[elfroggo]

Just run a line from boost source to wastegate and see what happens. You might have something wrong with the wastegate

 

[romeen]

Does it do this with the Profec or only with the MBC? If only with the MBC check the routing. Is it tee'd into the BOV line?

Pre-turbo exhaust leak?

Did you use soapy water during the boost leak test?

 

[luvmygst]

It does it with what every boost controller you use. The boost leak test showed a little leak at the TB seals thats it.

 

[95-talontsi]

Well like the other guy said try it with out a boost controller.

 

[CanadianTSi]

We just installed a tubular manifold and Thats when the problem started.

Exhaust Leak...

 

[luvmygst]

Found the problem....the actuator was hitting the exhaust side of the turbo forcing it into a bind and holding the wastegate open all the way. Thanks for all the help

 

[Boostdclips99]

He is talking about my car. I thought we had it fixed by slightly bending the arm, ended up doing the same. I don't want to put too much pressure on it and it looks like a big pain in the ass to remove. And suggestions on a quick fix?

 

[95-talontsi]

When I got a bigger exhaust housing, I had to take my wastegate off of the turbo and mount it using only 1 hole to get the rod to clear the housing.