Turbo Engine Cars Base Weight
#28032 from Jose De Miguel · Rule change · TB 20-03 (2020-03 Fastrack)
In STU, GCR section 9.1.4.1.H.6., change as follows:
"All turbocharged engines shall use a turbo inlet restrictor. Vehicle minimum base weight is determined
by TIR size selected from the following table. Turbocharged engines of greater than 2.7L displacement
shall use the weight either as listed in the lbs/cc or restrictor size/lbs charts, whichever is greater.
Turbocharged engines utilizing Direct Fuel Injection (DI) shall increase their minimum base weight by
3%."