Thread: Turbo Build "UPDATED 12/22/2010"

Originally Posted by saleenprix

Vacuums go as so:

BOV- any vacuum behind the TB/ vent to atmosphere?

correct

Wastegate- vacuum on turbo housing

wrong, goes on the engine vacuum.

Boost Gauge- anywhere on the IC piping

Wrong again, engine vacuum

"boosting the crankcase" is dealt with through valve cover breathers/ pcv breathers.

Wrong again, on L36/L67 motors, there is a fresh air draw in the throttle body that has to be blocked, on L26 intakes, the fresh air draw is on the top of the intake, and can be capped or left open.

Originally Posted by bbptech

darkhorizon, what exactly did u do or i should say use to completely block off pcv on the uim?

answered on cgp.

I put a cap on the PCV valve nipple.

Originally Posted by darkhorizon

correct


wrong, goes on the engine vacuum.



Wrong again, engine vacuum



Wrong again, on L36/L67 motors, there is a fresh air draw in the throttle body that has to be blocked, on L26 intakes, the fresh air draw is on the top of the intake, and can be capped or left open.

nipple on the turbo housing isnt engine vacuum..? IC piping isnt vacuum?
My SRT4 has been running the vacs like that for years and everything works fine.

Originally Posted by saleenprix

nipple on the turbo housing isnt engine vacuum..? IC piping isnt vacuum?
My SRT4 has been running the vacs like that for years and everything works fine.

No, and the turbo housing is a lousy place to get boost reference from in my experience.

Originally Posted by darkhorizon

No, and the turbo housing is a lousy place to get boost reference from in my experience.

any turbo car ive ever worked on has the wastegate vacuum connect to that nipple. What do you mean by "lousy"?