Sent by: dvwaggoner@comcast.net

Received Date:  07/24/2006 04:54 PM

Transmission Date:  07/24/2006 04:54:47 PM	

To:  Michael Samulski/AA/USEPA/US@EPA

cc:

Subject:  SBREFA notes from Indmar

	

 

INDMAR CATALYTIC CONVERTER HISTORY

April 2002- Hired engineer for converter development

Spring 2003- Visited several automotive catalytic converter
manufacturers

Summer 2003- Supplied two ski boats to Southwest Research Institute
(SwRI) for

                         converter durability testing. Assisted with
calibration development.

June 2003- Selected low volume automotive supplier to develop marine
converter

                   system

Fall 2003- Extensive dyno testing to determine catalyst substrate size
and shape for

                  minimum backpressure and optimum performance

Spring 2004- Determined insulation requirements for catalyst and
precious metal

                      loading for best converter efficiencies

Summer 2004- SwRI completed 480 hours of durability on four boats with
positive

                         results.

Fall 2004- Started production design with converter added to rear of
exhaust manifold 

May 2005- Built Indmar test boat with catalytic converters

June 2005- Hired additional engineer for exhaust manifold design and
product integration

                   

June 2005- SwRI started 480 hours of durability on three boats in salt
water.

July 2005- Revised design from converter being added after exhaust
manifold to  

                  converter integrated into manifold

August 2005- Selected exhaust manifold design, tooling and production
facility

September 2005- Indmar boat tested at GM Desert Proving Grounds and high

                            altitude facility

September 2005- Committed to June 2006 production on premium 5.7L
engines (5000 engines first year)

December 2005- Indmar calibration boat tested in salt water (about 160
hours)

INDMAR CATALYTIC CONVERTER HISTORY

January 2006- Florida test trip with GM

February 2006- Showed production part at Miami Boat Show

February 2006- Florida test trip with GM

March 2006- MEFI 5A software buy-off trip

May 2006- Tested production parts in Phoenix hot weather and altitude

May 2006- Started salt water durability test boat (currently at 350
hours and problem free)

June 2006- Verified converter protection misfire program on dyno

July 2006- Emission values for CARB  1.81 HC, 2.03 NOx, 3.84 HC+NOx, 
46.56 CO or 2.01 HC, 2.26 NOx, 4.27 HC+NOx, 51.82 CO with DF applied

             

