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/)
-   -   Intakes (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/intakes-30146/)

tampaFD 12-11-2003 04:40 PM

does anyone have any experience extrude honing thier intakes? the castings are rough inside i was wondering if anyone had a personal experience with it. it does help n/a piston cars a good bit but i have not heard of any rotary applications.

Silver Ninety Three 12-13-2003 06:16 PM

Too expensive for the gains in my opinion. I'm in the process of sandblasting smooth the inside of mine. I purchased a sandblaster from harbor freight for $70!

amp 12-21-2003 09:03 AM

to add to the original question..

anyone have concerns about the secondary injector ports when extrude honing...

curious as to whether or not there may be injector fitment issues after..

rotarypower101 12-23-2003 01:58 AM


"Too expensive for the gains in my opinion. I'm in the process of sandblasting smooth the inside of mine. I purchased a sandblaster from harbor freight for $70!"


How are you doing that??

Are you using large very abrasive media for long periods of time?

and adjusting the sprayer periodically






to add to the original question..

anyone concerns about the secondary injector ports when extrude honing...

curious as to whether or not there my be injector fitment issues after..


Why would there be unless they purposely ran the media through the port?


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