Rotary Engine Building, Porting & Swaps All you could ever want to know about rebuilding and porting your rotary engine! Discussions also on Water, Alcohol, Etc. Injection

My Ports Are Done

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Old Nov 18, 2005 | 02:39 AM
  #21  
Old Splatterhand's Avatar
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Originally Posted by PDF' post='779441' date='Nov 18 2005, 02:24 AM

Those are nice looking ports! Full credit.

Can someone explain the reasoning for such early exhaust port opening? I was under the assumption that earlier opening shortens the power stroke or does this apply to n/a only?


i think the marginal cons outweigh the pros.

just look at the e-shaft angle where the exhaust ports open: i feel there isn't much useable "leverage".

my personal feeling ist that the most force is transfered to the shaft/rotor way before even wild exh. ports open. you lose a bit of potential power but get back way more with earlier turbospool and probably more topend. on NA engines this might be a different story. but thats just my theory, unfortunately i never could test that (but some day i will)
Old Nov 20, 2005 | 05:25 PM
  #22  
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that looks slick my friend!
Old Nov 20, 2005 | 07:10 PM
  #23  
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Originally Posted by ColinRX7' post='780144' date='Nov 20 2005, 06:25 PM

that looks slick my friend!


you still gonnna rebuild it with me? im sending the housings out next week probably, making sure i have enough money to xmas shop and do the housing coatings.



kevin.
Old Nov 24, 2005 | 03:01 AM
  #24  
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that's some great port work. i can't wait to see it together and hear how it runs.
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