[s-cars] 80tq: 20v Project Update, 415whp, 12.25, etc

[Djdawson2 at aol.com]

In a message dated 11/11/2004 9:21:00 AM Mountain Standard Time, JShadzi 
writes:

> Scott, agreed on the turbo comment.  In fact, often a "controlled leak" can 
> be used to push a turbo into a more efficient area of the compressor map, 
> the extra flow just venting to atmosphere, but allowing the turbo to flow more 
> air to avoid the surge or overspeed line.  Altitude can have the same effect.
> 
> 

Interesting... so not only are our cars getting the benefit of overcorrection 
on the dynos, but the altitude is helping our turbos perform better???  C'mon 
guys, give me a break.  Review your maps.  To run at the PR that we're 
running (denominator is lower... therefore, PR is higher at altitude) we're crossing 
the top of the map... certainly no improvement WRT compressor efficiency.  
Let me know an acceptable sea level dyno, and I'll go give it a try.
Dave