Request to Use Japanese Mazda 13b Intake Manifold
#25790 from Luis Rivera · Rule change · TB 19-04 (2019-04 Fastrack)
In GCR section 9.1.4.1 Table B, add to notes as follows:
STU Maximum
Displacement (cc’s)
Minimum
Weight Notes
Mazda 13B
NA 2300
Street porting allowed, contact SCCA Technical
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Services for details. Stock Fuel injection or 1 Auto-
type 2 barrel carburetor with 42mm chokes on a
“dual-y” manifold. May use ELITE ROTARY SHOP
FD V2.0 INTAKE
Mazda 13B
Bridge Port NA 2600
Stock intake manifold & throttle body required, or
automotive 2 barrel carb with 44 mm chokes. May
use ELITE ROTARY SHOP FD V2.0 INTAKE