[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: Intercooler Efficiency... - the MATH again

11/17/97 9:10 AM QSHIPQ@aol.com

>CONCLUSION:  A stock single pass IC is a Good mod for a stock k26 operating
>in it's designed MAP.  The ease of installation, low relative cost is
>attractive.  A read of my IC efficiency post shows that given a baseline IC
>your efficiency gains going to a "more" efficient IC has diminishing value
>the baseline increases.  


Scott knows not of what he is talking......  I've had the Audi 
intercooler flow tested. In two pass mode the intercooler is 55% 
efficient and has a 6psi pressure drop at 15psi of boost. In single pass 
mode  (Scott's current fav) it's only 50% efficient with a 4psi pressure 
drop at 15psi of boost.  

A proper intercooler installed in the car can be up to 96% Efficient with 
a pressure drop of only .4psi at 20psi of boost.  Do the math which one 
is better?  I know which is better, that's why I'm running a custom built 
single pass, high efficency low pressure drop intercooler in the car.

Thoses pressure drop numbers BTW totally invalidate Scott's PR numbers.  
This is where Scott has been getting into trouble....  All of Scott's 
MATH is based on an Ideal Zero Loss Intake system, one in which there is 
no pressure drop in the system at all.  Because of that all his Temp's, 
Pressure's and CFM's are unrealistic.

Like Scott likes to say......  It's Math.


Eric Fletcher S.O.C.
'87 5KCSTQ with WAY too many toys.....

According to Einstein, the faster you go, the longer you live.

St. Louis, MO