The reason for the 2 jet recommendation on stage 4 with the 2d is because of the upgraded fuel injectors and the rich levels that stage 4 starts at before water injection. By the time you lean out the fuel for water injection the IDCs are too low for the 1.0 jet to flow enough water to suppress knock.
So the recommendation for those with upgraded injectors has been to use 2 0.7 or 0.8 jets. With the 2d since the IDCs are relatively low after tuning for WI the pump should be able to keep up with the flow of the two jets. Of course one accumulator always adds an extra buffer to make sure the system has the capacity to flow more than needed.
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30-11-2003, 05:31 PM
Hybrid Mode
