Info found in a dealer training guide that a few people were privy to recently. Ford needs to explain this. If it means what it says, it is a 475hp engine with 529 available for 8 seconds before engaging a mini limp mode.
Engine Overrev Indicator
• Helps increase the performance range of Shelby GT350
• Overrev is indicated on the tachometer by raising the
redline from 6250 to 8250 rpm
– When conditions permit, overrev is indicated by a
8250 rpm redline
– If conditions limit overrev accessibility, the
tachometer redline is illuminated at 6250 rpm
• Engine torque and maximum rpm are limited until
coolant temperature reaches 170 degrees F
• Warm-up is indicated when the illuminated
tachometer redline changes from 6250 rpm to
7000 rpm
• Once the engine is warm, the overrev feature allows
8 seconds above 6250 rpm up to 8250 rpm
• If the 8-second time limit is exceeded, maximum
engine rpm is reduced to 6250 until both of the
following occur:
– Engine is operated for at least 15 seconds below
6000 rpm
– Engine rpm falls below 5000"
Engine Overrev Indicator
• Helps increase the performance range of Shelby GT350
• Overrev is indicated on the tachometer by raising the
redline from 6250 to 8250 rpm
– When conditions permit, overrev is indicated by a
8250 rpm redline
– If conditions limit overrev accessibility, the
tachometer redline is illuminated at 6250 rpm
• Engine torque and maximum rpm are limited until
coolant temperature reaches 170 degrees F
• Warm-up is indicated when the illuminated
tachometer redline changes from 6250 rpm to
7000 rpm
• Once the engine is warm, the overrev feature allows
8 seconds above 6250 rpm up to 8250 rpm
• If the 8-second time limit is exceeded, maximum
engine rpm is reduced to 6250 until both of the
following occur:
– Engine is operated for at least 15 seconds below
6000 rpm
– Engine rpm falls below 5000"
