SCCA Enterprises ESR / P2 engine restrictor testing
#28669 from Mike Davies · Rule change · TB 20-05 (2019-05 Fastrack)
In GCR section 9.1.8.H.7.a, add a new part and renumber the section accordingly:
"15. 55mm flat plate intake restrictor Part # WM303013 as supplied by Enterprises"
In P2 Table 1, Enterprises Sports Racer spec line, change as follows:
"See ESR rules in GCR section 9.1.8. for complete specifications. Effective 4/1/2020, the ESR 2.3L enginemust have either an SIR or a Flat Plate restrictor fitted that meets the peak horsepower specified by theSCCA. The SIR or Flat Plate restrictor must be sized in whole or 0.5mm increments. Dyno data also mustbe submitted for restrictors 1.0 and 2.0mm on either side of the restrictor size that permits the engineto meet the specified peak horsepower."