STL Honda B18 restrictor changes
#28794 from Club Racing Board · Rule change · TB 20-05 (2019-05 Fastrack)
In STL Spec Lines, Honda B18, change as follows:
"53mm flat plate restrictor required."
In STL Spec Lines, change as follows:
"Acura/Honda B18C (JDM Type R), B18C1, B18C5 (USDM Type R), B18C6 (UK and Euro Type R), B18C7
(Australia Type R)"
In STL Spec Lines, Acura/Honda B18C (JDM Type R), B18C5 (USDM Type R), B18C6 (UK and Euro Type R),
B18C7 (Australia Type R), change notes as follows:
"Any porting and or polishing of intake and or exhaust ports outside of the 1” port matching allowance,
Show 9 more lines
factory or otherwise, is prohibited. Must meet all other STL specifications. 54 53mm flat plate restrictor
required."
In STL, Acura/Honda B18C1, add Spec Line as follows:
STL Maximum Displacement
(cc's) Minimum Weight Notes
Acura/Honda
B18C1
Chart 54mm flat plate restrictor
required.