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
We are missing the timing for the Racing Beat Turbo PP? They make two
diffent PP housings...
Hans
Looking at the pictures, I am surprised that the ports are horizontal
instead of perpendicular to the housing. jerry
That is more closely aligned with the actual air flow.
Paul
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