[quote name='R.P.M.' date='Apr 5 2005, 07:06 PM']What I meant was can I take the bridge port down towards the oil pan more?

And how wide should the bridge be?


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Going "down" (hold your laughter until the end, please) on the eyebrow will open the port earlier, as the closer the port gets to the rotor housing the more its opening is dictated by the apex seal and not the sides of the rotor. This decreases part-throttle power and makes the engine more sensitive to intake and exhaust tuning and exhaust restriction. If you don't mind those issues, there are gains to be had in increasing the area of the eyebrow. More gains to be had in relieving the rotor housing.

 

Good stuff,



I still wonder how a bridge on the primaries only would act...not to repeat myself but it would seem like if you bridged the primaries and performed a large street port on the secondaries,you might have the best of both worlds..Though I could be very wrong.Is ther any advantage with bridging the secondaries over the primaries?



Nick