Paul, first I want to say that I am not the expert. I have not yet completed building my own p port. The major difference between our p ports and those found in race cars is that our engines are limited to 7500 rpm (or in my case to 6000 rpm). These are very low rpm numbers for a p port. Never-the -less considerable power can be developed. Probably up to 250 hp @ 7500 rpm. I am hoping for 220 hp at 6000 rpm which is more power than my Tailwind will ever need. It is my understanding after talking to a lot of people that at our rpms you can leave the exhaust port stock with the splitters installed. Like Buly said, close off all the stock intake passages with epoxy. Jerry





On Saturday, March 12, 2005, at 09:57 PM, Paul wrote:

Hi, all....I need to make an inquiry regarding peripheral ports.  I understand that the housings get the round peripheral ports installed, and that the exhaust port is also modified to complete the P-Port modification to the rotor housings.
     What, if anything needs to be done to the existing center and end plates?  If I purchase a set of p-ported housings, can I use the e-shaft and rotors from either my 1989 4-port turbo engine with it's 9.0 compression rotors, or the e-shaft and rotors from my 1988 NA 6-port engine with it's 9.4 compression rotors?  Or would I be better off using the street-ported 4-port center and end plates? I asked Paul Lamar, but I didn't understand his short answer.  He mentioned epoxy, but is that for the p-port housings or do you block off the ports in the front, rear and center plates that have the triangular ports in them?  Thanks in advance for all replies.  Unfortunately, I am not familiar with the internals of this engine, and how the stock porting works (or doesen't work) with peripheral ports.   Paul Conner