They are stronger than cast, but they aren't impervious. Do you have any idea what happens in a combustion chamber that is pinging at 25psi of boost? The kinds of forces going on will shatter a cast piston, while a forged will simply melt, possibly allowing you to only replace that piston, associated rings and gasket then get on down the road. A shattered cast piston or *shudder* hypereutechnic (Silvolite) will break like glass is there any hint of detonation going on and will likely destroy the cylinder wall.
So 25, 30, 40, 50 psi conceptually could be run provided you're tuned properly. There are physical limitations of course so that's not all that probably in the real world, at least not for very long. If his calibration is only configured to run to 15psi and he's over shooting that there is a possibility that he melted a piston from running lean. Best Regards, Stefan Mullikin Portland, OR Co-Founder PNW-SDAC http://www.pnw-sdac.org 1980 Fiat X-1/9 1984 Dodge Rampage 2.2 1987 Dodge Daytona Shelby Z 1987 Shelby CSX #106 1988 Shelby CSX-T #3 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brian Schulteis Sent: Monday, December 13, 2004 4:46 PM Cc: SDML Subject: Re: SD> problems and questions What's the point of a forged piston then? They wear out way faster, you say they can't take abuse.. What's the point??? On Mon, 13 Dec 2004 18:09:52 -0600, Jason Arroyo <[EMAIL PROTECTED]> wrote: > You can frag a forged piston real quick if you are boosting out of > tune enough. -----------------------REMOVE-FOOTER-WHEN-REPLYING---------------------------- Questions? Visit http://www.sdml.org/ To be removed, visit http://www.sdml.org/pages/leave.html
