Here is what I have on P-ports.
Scale it off the Leman engine. Plenty of power!!!!!!!!!!!

Paul Lamar

Thank you Paul, this will get things rolling.
Archie

Archie,
Try Paul Yaw's website at http://personal.riverusers.com/~yawpower/.  He lists the
port timing for all years including Mazda and Racing Beat PP.

Ken Powell

Paul Yaw is doing a superb Wankel rotary educational job on his web site.
All I saw Ken, was the Mazda P-port timing. Not the Racing Beat P-port. 
Am I looking in the right place?

It would be nice if Paul Yaw gave the duration's. Anybody wish to add the 
duration math to this.  Subtract open from closed.
An area plot would also be great Paul! :-) Too much? :-)

Paul Lamar


IO = Intake opens
IC = Intake closes
EO = Exhaust opens
EC = Exhaust closes

US Model First Generation RX-7

IO 32° ATDC
IC 40° ABDC
EO 75° BBDC
EC 38° ATDC

European Model Model First Generation RX-7

IO 32° ATDC
IC 50° ABDC
EO 75° BBDC
EC 48° ATDC

First and Second Generation 6-Port 13B

Primary intake (Part throttle/cruise)
IO 32° ATDC
IC 40° ABDC
Secondary intake (Part to full throttle)
IO 32° ATDC
IC 30° ABDC
Auxiliary high speed ports (Full throttle above approximately 4000 rpm)
IO 45° ATDC
IC 70° ABDC
EO 71° BBDC
EC 48° ATDC

Second and Third Generation Turbo 13B

IO 32° ATDC
IC 50° ABDC
EO 71° BBDC
EC 48° ATDC

Racing Beat "Street Port"

IO 25° ATDC
IC 60° ABDC
EO 84° BBDC
EC 48° ATDC

Racing Beat "J-Bridge Port"

IO 115° BTDC
IC 72° ABDC
EO 88° BBDC
EC 57° ATDC

Mazda Factory Peripheral Port

IO 86° BTDC
IC 75° ABDC
EO 73° BBDC
EC 65° ATDC


 
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