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Originally Posted by Judge_Ito
from the pics it looks like you did not bevel the edges, a very critical point when a rotor housing is ported. it seems like you did. the moral of the story was made. everyone needs to port the bevel in after a rotor housing is ported. let's keep it civil. and don't want to ruin your thread, but members need to know the importance of a beveled exhaust port.
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Thank you sir for your good attitude (diffusing the tense situation) and your concern for the community.
Each has their own take on port geometry - there are a lot of things that are dependant on power goals, etc. Some things are universal to all porting jobs, and Judge_ITO is right about the bevel (especially on the trailing edge of the port). The bevel also helps the flow as the sharp edge will create turbulence.
This nitriding process is a good service to the community.
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1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers)
1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)
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