Increase 13b SIR size
#29867 from Grand Touring Committee · Rule change · TB 21-01 (2021-01 Fastrack)
In GTL, Spec Lines, Engines - MAZDA 13B, change as follows:
Fuel Induction: "26 28mm SIR"
Notes: "May use a 27mm SIR plus 175lbs."
BoP Lab / Rules / Letter #29867
#29867 Increase 13b SIR size
From Grand Touring Committee · GTL · Rule change