View Single Post
      10-17-2012, 06:50 PM   #22
beta
Lieutenant Colonel
80
Rep
1,663
Posts

Drives: 2006 M Roadster
Join Date: Mar 2011
Location: CA

iTrader: (2)

Quote:
Originally Posted by Rated M Roadster View Post
beta: Use your google skills and look up how much more boost is lost through an air to air system versus and air to water system. An air to air system loses boost because of the volume of piping, not because there's a problem.
Ok!

So google searches show that yes, there's a boost loss but usually it's made up by the reduction in temp. So roffle would gain 1psi, but after the water warms up, his charge temp would be higher, which means more heat soak.

Quote:
Don't intercoolers restrict the flow of air into the engine?

Yes. Any time there is an obstacle in the way of the air flowing into the engine (like an intercooler fin or louvre), a pressure loss will result. Today's intercoolers are very effective in minimizing this pressure loss so that the benefits obtained by cooling the discharge temperature normally outweigh the 1-2psi (approximate) loss in air pressure, which can be regained by running a smaller pulley and increasing the output of the supercharger.
From Supercharged! Design, Testing and Installation of Supercharger Systems

"When space permits and adequately sized air-to-air intercooler to be fitted and given access to decent airflow, it will always prove superior. The only excuse for a liquid-based intercooler is when severe space restrictions exist… or where an iced coolant can be used."
__________________
Appreciate 0