You want a serious post?

What is hard and why so many people have troubles is you need to size everything suitably for a PP, its not rocket science nor is it difficult, it outside of the square of most because they have never done it nor do they have a brain to tackle it from paper alone before wasting engines and ancilaries on useless parts or combinations that wont suit each other.

The reasons side ports are so popular is they are the least sensitive to widley varying tunes and set ups *read easy enough for any monkey to make power*
PP's are not, it then is simply a numbers game of who is doign it and who is not nothing more nothing less.

You WILL see PP's totaly dominate in a few short years, so much so that people will wonder why it took so long for it to start happening

 

Stock port is gayest

You cut me deep rice, real deep.

Merry X-mas
Allen

 

I don't know, but I'm trying to learn, so forgive me.... I was buying what Boostn7 said about:

-Boost pressure to bleed off thru the exhaust side
-exhaust pressure to flow backwards into the intake when its higher then intake pressure.
-Exhaust and intake getting mixed into combustion chamber
-high fuel consuption ( no bid deal in race set ups)
-Further drop in thermal efficiency
-Poweband is moved up quite a bit....revving to 10Krpm+

And then you came in with "volumetric efficiency>these issues". Maybe you are right, but if you got the time, I'd appreciate it very much if you could elaborate. For instance, what effect does the loss of boost pressure through the overlap have on the whole equation, on top of periods of exhaust mixed into the intake?
All that suggests to me that PP is better suited to n/a applications, but you appear know what your talking about, too, and it would help me (maybe many others, too) if you could break it down a bit more. Thanks!

 

-NO
-NO
-NO
-NO
-NO
&
-NO

To all the above points
Its all speculations and ignorance based on nothing and no testing and no results similar to seemigly most everything in the drag racing world !

One day the new trend will hit and people will go wow where did that come from LOL !

 

PP's for the most part are not used due to the base motor not being strong enough to handle the current power levels made on inferior side port blocks and this is a fact specialy in the 20B world right now

 

WTF do we have to wait a couple years for? Who is doing it now? Where are the dyno sheets? I ain't saying nobody is doing it now, but neither are you.

 

LOL the people doing wont be posting dyno sheet on some internet forum I know of 3 directly that are the fastest most powerfull of their type in the world.

LIKE i said so before there are other problems with rotary engiens that preclude the need to even think about peripheral porting at this stage for outright BHP thats why its not common place + its far easier to copy someone elses set up and make **** ups tuning normal side ports... theres lots of reasons.

There are others of a commercial nature that I wont go into here, but from pure technical merit & reasoning PP is always been top dog, either NA or Pressurized and thats all you need to know All the tech heads know this as its always been the case for pure racing engines.