NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   ? about Semi-PPort (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/about-semi-pport-65187/)

13BTNOS 04-12-2007 02:55 AM

http://www.mazdarotary.net/porting.htm Look at the J or Monster Port and that is what Mr. Hanover is trying to describe.

rotaryinspired 04-12-2007 09:26 PM

Somewhere I have seen a rotor housing w/ 2 small PP that utilizes the side ports for intake, but they have been filled to flow into the rotor housing instead. I know it sounds crazy, but I believe the port was to get around some racing rules. I'll look for the picture.

crispeed 04-13-2007 04:59 AM


Originally Posted by rotaryinspired' post='867963' date='Apr 12 2007, 06:26 PM

Somewhere I have seen a rotor housing w/ 2 small PP that utilizes the side ports for intake, but they have been filled to flow into the rotor housing instead. I know it sounds crazy, but I believe the port was to get around some racing rules. I'll look for the picture.



It's called a side fed PP. Was very popular back in the day when the rules did not allow PP>https://www.nopistons.com/forums/pub...1047683785.gif



http://img307.imageshack.us/img307/8265/sidepp2pr4.jpg



Go to this thread for some interesting NA setups. -->



http://www.ausrotary.com/viewtopic.php?t=115759

rotaryinspired 04-13-2007 10:01 AM

Thank you Crispeed. That is what I thought Lynn was describing.

Lynn E. Hanover 04-14-2007 01:24 PM


Originally Posted by Lynn E. Hanover' post='867793' date='Apr 11 2007, 07:36 PM

I have no such pictures, however I can draw up one in MS Paint.

Lynn E. Hanover





Here is a picture.



If the port is used for a turbo engine, all openings may be left open. For a NA engine, the original (stock port may be filled with epoxy so as to maintain some velocity.





Lynn E.Hanover

rotaryinspired 04-16-2007 12:33 AM

Thank you for taking the time to work that up.

Lynn E. Hanover 04-16-2007 06:18 AM


Originally Posted by rotaryinspired' post='868321' date='Apr 15 2007, 10:33 PM

Thank you for taking the time to work that up.





Well, thank you for that.



Lynn E. Hanover



Making the complex simple, for 60 years.



I have Al Gore style carbon offsets available in every price range,

for anyone stupid enough to buy them.

RONIN FC 04-16-2007 10:14 AM

How can you seal it up between the tention bolt holes? RTV?

It seems like coolant would seep into the new runner.

RONIN FC 04-16-2007 10:22 AM

Like here..

diabolical1 04-16-2007 07:03 PM

Lynn, your knowledge and moreover, your experiences, never cease to amaze me. thank you.


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