David Pintaric
Viper Owner
All, below are some general specs for cars eligible for SCCA's new in 2009 STO (Super Touring Over) class. This is a Corvette and Viper class with many modifications permitted, the ones we all want to make on our cars. These cars ARE fast.
SCCA’s STO class.
Corvette 5.7 3135 lbs
Corvette 6.0 3300 lbs
Corvette 6.2 3400 lbs
Corvette 7.0 3300 lbs 60mm flat plate or 45mm SIR
Viper 8.0 3135 lbs 60mm flat plate
Viper 8.3 3300 lbs 60mm flat plate
12.0 max compression ratio
.600” lift camshaft
Headers permitted
Port & polish cylinder heads permitted
Stock crankshaft, pistons and con rods open
Rear gears and trans gear open
Carbon clutches permitted
Traction control permitted
18x11 front 18x13 rear max wheels
Tires unlimited
355x33 brake rotor max size
6 piston max calipers permitted
ABS permitted w/factory brake system
Water cooling for brakes permitted
12” wide wing not extending beyond body permitted
Front splitter permitted
I can see some great cross over between this class and NASA's ST1. Two places to race the same car!
SCCA’s STO class.
Corvette 5.7 3135 lbs
Corvette 6.0 3300 lbs
Corvette 6.2 3400 lbs
Corvette 7.0 3300 lbs 60mm flat plate or 45mm SIR
Viper 8.0 3135 lbs 60mm flat plate
Viper 8.3 3300 lbs 60mm flat plate
12.0 max compression ratio
.600” lift camshaft
Headers permitted
Port & polish cylinder heads permitted
Stock crankshaft, pistons and con rods open
Rear gears and trans gear open
Carbon clutches permitted
Traction control permitted
18x11 front 18x13 rear max wheels
Tires unlimited
355x33 brake rotor max size
6 piston max calipers permitted
ABS permitted w/factory brake system
Water cooling for brakes permitted
12” wide wing not extending beyond body permitted
Front splitter permitted
I can see some great cross over between this class and NASA's ST1. Two places to race the same car!
