Boost don't come till around 3.5-4k
 

Is this normal cause I've been reading that other people started spooling at like 2-3k. Now this is what you call lag. Feels like vtec area that it's coming in at. I'm using a wrx turbo and 2.25 piping for exhaust(yeah I know...)dsm side mount with 1.75 to 2" piping for charge piping. What gives?

Re:Boost don't come till around 3.5-4k
 

Any idea of the specs of that turbo? Like what size AR it is and what size turbone your running?

Re:Boost don't come till around 3.5-4k
 

tha damn charge pipes are too big, go with what is off of the turbo, and put the wastegate hose right before the throttle body.

Re:Boost don't come till around 3.5-4k
 

2 inches is not too big for charge piping...now are you saying you have no boost at all until 3.5k?

Re:Boost don't come till around 3.5-4k
 

errr, I think you want the wastegate line somewhere AFTER the throttlebody... ie the intake manifold, fuel pressure regulator line. etc.

Re:Boost don't come till around 3.5-4k
 

anywhere after the ic would have pretty much the same reading i bet

Re:Boost don't come till around 3.5-4k
 

No its not the same. You NEED to take the vaccum source from the manifold, its a stronger vaccum source.

Re:Boost don't come till around 3.5-4k
 

I took my wastegate boost right off the partial charge pipe that's on the turbo.

Re:Boost don't come till around 3.5-4k
 

Yeah some wastegates are setup for this and thats perfectly fine, however the best vaccum source is the manifold. IMO

Re:Boost don't come till around 3.5-4k
 

WG needs vacuum?

I know it reads boost, but vac?