What does FSI stand for?

quattroforlife · 04-04-2005, 07:07 AM

Cant Find a definition anywhere

VandyS4 · 04-04-2005, 07:09 AM

From Audi's website.

In contrast to conventional intake manifold injection on conventional spark-ignition engines, FSI engines inject fuel directly into the combustion chambers, dispensing with the throttle plate. That "unthrottles" the engine, reduces heat loss and thus increases output while reducing fuel consumption. The system uses two charge-air supply modes: stratified charge at partial load and homogeneous operation at full load. In the stratified charge mode, an combustible fuel-air mixture is only produced in a defined zone around the spark plug. The engine management electronics monitor engine load and adjust injection timing, pressure, quantity parameters as well as the air flow inside the cylinder via the air intake channel. At full load, FSI increases compression as well as engine efficiency and performance.

sbmellen · 04-04-2005, 07:10 AM

Acronym Finder is your friend.

(See page two for the Audi-specific FSI acronym definition.)

VenTTed · 04-04-2005, 07:40 AM

quattroforlife · 04-04-2005, 07:57 AM

04-04-2005, 07:09 AM	#2
VandyS4 AudiWorld Super User Garage is empty, add now Join Date: Dec 2003 Posts: 6,912	Fuel Stratified Injection (definition inside) From Audi's website. In contrast to conventional intake manifold injection on conventional spark-ignition engines, FSI engines inject fuel directly into the combustion chambers, dispensing with the throttle plate. That "unthrottles" the engine, reduces heat loss and thus increases output while reducing fuel consumption. The system uses two charge-air supply modes: stratified charge at partial load and homogeneous operation at full load. In the stratified charge mode, an combustible fuel-air mixture is only produced in a defined zone around the spark plug. The engine management electronics monitor engine load and adjust injection timing, pressure, quantity parameters as well as the air flow inside the cylinder via the air intake channel. At full load, FSI increases compression as well as engine efficiency and performance. __________________ Born and raised in NYC

04-04-2005, 07:10 AM	#3
sbmellen AudiWorld Super User Garage is empty, add now Join Date: May 2001 Posts: 12,466	Yes; amongst other things. ;-) Acronym Finder is your friend. (See page two for the Audi-specific FSI acronym definition.) __________________ sbmellen.com <a href="http://www.wunderground.com/US/AZ/Phoenix.html?bannertypeclick=miniStates"> </a> Buy your copy of "Turbo Ocho" by Roger Clyne and the Peacemakers today!

04-04-2005, 07:40 AM	#4
VenTTed AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 10,938	Free Standing Insert (ie., Coupon via newspaper) __________________ Click! 2000 TTQ - Formerly in So. Cal, now living in the Frigid NE

04-04-2005, 07:57 AM	#5
quattroforlife Junior Member Garage is empty, add now Join Date: Apr 2002 Posts: 685	thanks __________________

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04-04-2005, 07:57 AM
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