[s-cars] Wastegate Spring was [MRC Chip = Red Rocket!]

[Ben Swann]

I was trying to be general as there awre variations on the theme - AAN just
using a different method to control boost.  In the AAN case, the spring will
assist just as well, if not better.

Ben

-----Original Message-----
From: Theodore Chen [mailto:tedebearp at yahoo.com] 
Sent: Saturday, March 11, 2006 2:19 AM
To: benswann at comcast.net
Subject: Re: [s-cars] Wastegate Spring was [MRC Chip = Red Rocket!]

--- Ben Swann <benswann at comcast.net> wrote:
> 
> Basically the spring keeps the wastegate clamped shut until a
> counter-opposing force of equal or greater is present - such as boost
> pressure regulated by frequency valve or other method.  If the
ECU/Frquency
> valve is not enough to overcome the speing force you will get overboost.

i think you're talking about the MC engines.  the AAN engines apply
boost to the bottom of the wastegate and use the boost to open the
wastegate.  the WGFV is used to remove boost from the bottom of the
wastegate and keep the wastegate shut.

-teddy