ninerqb8
New member
- Joined
- Jun 12, 2009
- Messages
- 632
Here is the rules right from the book.
Turbocharger
Vehicles are limited to two turbochargers only. For multiple turbos, the inducer bore on the atmosphere compressor housing may be no larger than 2.8 inches measured at the smallest diameter area of the compressor housing. A bushing compressor housing may NOT be used. The high-pressure (small turbo charger) turbo compressor housing inducer can be no larger than 2.5 inches measured at the smallest diameter area of the compressor housing. Vehicle running single turbochargers are limited to the inducer bore on the compressor housing being no larger than 2.8 inches measured at the smallest diameter area of the compressor housing. A bushing compressor housing may NOT be used in a single or compound turbo charger configuration. The inlet will be
measured using a 2.85-inch plug. (If the 2.85-inch plug fits inside the compressor housing you will not run in this class) A stock map width enhancement (MWE) groove is allowed. No MWE groove will be allowed that has a width greater than 1/4 inch. All provisions allowing air to the wheel other than via the bore and the MWE groove are prohibited.
Turbocharger
Vehicles are limited to two turbochargers only. For multiple turbos, the inducer bore on the atmosphere compressor housing may be no larger than 2.8 inches measured at the smallest diameter area of the compressor housing. A bushing compressor housing may NOT be used. The high-pressure (small turbo charger) turbo compressor housing inducer can be no larger than 2.5 inches measured at the smallest diameter area of the compressor housing. Vehicle running single turbochargers are limited to the inducer bore on the compressor housing being no larger than 2.8 inches measured at the smallest diameter area of the compressor housing. A bushing compressor housing may NOT be used in a single or compound turbo charger configuration. The inlet will be
measured using a 2.85-inch plug. (If the 2.85-inch plug fits inside the compressor housing you will not run in this class) A stock map width enhancement (MWE) groove is allowed. No MWE groove will be allowed that has a width greater than 1/4 inch. All provisions allowing air to the wheel other than via the bore and the MWE groove are prohibited.