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-   -   Is There A Reason Why Prim. Inj. Diffusers Are (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/there-reason-why-prim-inj-diffusers-38152/)

1Revvin7 05-01-2004 01:26 PM

I know the pictures is blurry, but you can see that the injector diffuser is off to the side of the primary port's runner. Any reason for this?

1Revvin7 05-01-2004 01:26 PM

There is definite room to port on the side of the diffuser...

kahren 05-01-2004 01:36 PM

what do u mean by the side.

does your camera have a macro function, u can take pics closer

1Revvin7 05-01-2004 02:06 PM

In the 1st picture you can see how the diffuser is almost against the wall of the intact runner. Its not in the center of the port runner..

Sesshoumaru 05-02-2004 12:33 PM

they aren't



there is a small notch in them



if not aligned correctly they will look like that



rotated them and see if it goes away. Only turbos have that.

kahren 05-02-2004 06:07 PM


Originally Posted by Sesshoumaru' date='May 2 2004, 12:33 PM
they aren't



there is a small notch in them



if not aligned correctly they will look like that



rotated them and see if it goes away. Only turbos have that.

i dont think thats what he is talking about, take a better pic i think, and then show what u are talkign about, if u are talking about the diffusers facing the rotors then thats how it should be.

GMON 05-03-2004 12:16 PM

When you look inside the s4 primaries the diffuser is up against the outside of the port leaving no room for air to flow arround them on that side. When you port you can make enough room for air to get arround on both sides. That is what he is reffering to. Why would mazda do such a thing??



Gregory

j9fd3s 05-03-2004 06:17 PM

they have a little pipe in the renisis to speed up the charge in some area of the primary port, maybe this is the same thing, but different?


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