What do you think about Corvette Racing moving to GT 2 this year? Chevy says it will be more comparable to the showroom Corvettes. I am a little surprised that Corvette will be Racing at all.
Charting the Changes: GT1 vs. GT2 Corvette C6.R
The following is an overview of the differences and similarities between the GT1 and GT2 versions of the Corvette C6.R.
GT1 Corvette C6.R
GT2 Corvette C6.R
Homologation Model
Corvette Z06
Corvette ZR1
Frame
Hydroformed steel
Hydroformed aluminum
Wheelbase (in)
105.7
Same
Length (in)
178.7
176.2 (-2.5)
Width (in)
78.7
78.6 (-0.1)
Weight (lb)
2580
2745 (+165)
Engine
7.0-liter LS7.R
2009: 6.0-liter LS7.R
2010: 5.5-liter GM V8
Horsepower
590
2009: 470 (-120)
2010: TBD
Torque (lb-ft)
640
2009: 535 (-105)
2010: TBD
Intake Air Restrictor (mm)
30.6
28.6 (-2.0)
Bore diameter (in)
4.180
Same
Crankshaft stroke (in)
3.875
3.32 (-0.555)
Transaxle
Xtrac 6-speed sequential
Same
Wheels
BBS magnesium, 18 x 12.5 (front); 18 x 13 (rear)
BBS aluminum, dimensions same
Tires
Michelin racing tires 300/32-18 (front) 310/41-18 (rear)
Same
Brakes
Carbon rotors and pads
Steel rotors, ceramic composite pads
Fuel capacity @ ALMS E85 spec (gal)
29
Same
Wing Chord (mm /in)
400 / 15.74
300 / 11.81 (-100 / -3.93)
Diffuser
Leading edge at rear axle centerline, with side plates and longitudinal fences
Leading edge at rearmost point of wheel opening, no side plates or fences
