<VV> Turbo Setup

[JVHRoberts@aol.com]

One HUGE correction, I missed it the first time around. 
The waste gate bypasses the TURBINE side, NEVER the compressor side. This is, 
BY FAR, the preferred method for controlling boost. 
Some cars, especially those that are intercooled and have more boost, have a 
blow off valve to prevent shocking the turbo when the throttle(s) slam shut, 
and these are used ONLY on blow through designs. A necessity, otherwise you'll 
try to shove the compressor wheel out the inlet, wrech the thrust bearings, 
surge the thing to death, and all sorts of other ugly things. 
Draw through setups don't need a blow off valve in any way. 


In a message dated 11/21/2004 3:11:45 PM Eastern Standard Time, 
flash@vicspdi.com writes:
The waste gate on many newer cars & trucks is computer controlled.  My Ford 
Powerstroke is solely computer controlled -- it used to be both computer 
controlled and mechanically controlled, but somehow when I installed the 
management chip, the boost hose got plugged ...

At 05:03 PM 11/17/2004, Sethracer@aol.com wrote:
>In a message dated 11/17/2004 3:48:24 PM Pacific Standard Time,
>RoboMan91324@aol.com writes:
>
>I have  been following this train with great interest as I am building two
>turbos.  As far as waste gates, it is my understanding that they are  not
>practical on the existing Corvair setup because the carb is upstream  in the
>flow.  As
>I understand it, a waste gate needs to be between  the compressor and the
>point
>where fuel enters the system otherwise, you  will be venting air/fuel
>mixture.
>That would get interesting pretty  quickly.  If I understand things, you
>would need to change pretty  much all of the Corvair intake components to do
>this
>as well as mods to  the exhaust side of things.  Am I correct?  As I see it a
>
>reasonable compromise between the stock unit and an intercooler is the
>addition
>of a water/alcohol injector.