Rotary Engine Building and Porting FAQ Section FAQ Area for Rotary Engine Building and Porting

Engine porting

Thread Tools
 
Search this Thread
 
Old Nov 6, 2002 | 05:40 AM
  #51  
Fd3BOOST's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2002
Posts: 9,725
From: La Plata, Maryland
Default

You could do that and it may hold. But if it doesn't then it gets sucked iinto your motor is it really worth it for what minor bit of intake turbulance you may clear up?



I wouldn't worry about making it that smooth
Old Nov 6, 2002 | 11:47 AM
  #52  
Dragon's Avatar
Senior Member
 
Joined: Sep 2002
Posts: 2,550
Default

WOW that looks alot like my port..
Old Nov 6, 2002 | 03:01 PM
  #53  
P'cola FD's Avatar
Senior Member
 
Joined: Sep 2002
Posts: 525
Default

I wouldn't worry about it getting sucked into the engine, as Bruce Turentine does the same thing to airplane engines.

I remember reading somewhere that the biggest improvents to be had from porting, were not actually gotten from the shape of the port on the face of the housing, but rather the shape of the inside of the port, and where the air is directed. Looking into the secondaries, the air goes in from the LIM, makes an almost 90 degree turn to run almost directly into the air from the primary port. With a little bit of time and effort, the ports could be contoured to not make the air turn so abruptly, and face the inside of the opening chamber, rather than the other port.

I probably won't do that to the engine I'm currently porting, but maybe when it's time to do mine i will.
Old Nov 7, 2002 | 03:32 AM
  #54  
Dragon's Avatar
Senior Member
 
Joined: Sep 2002
Posts: 2,550
Default

Since I decided to blow my **** 24 hrs ago I have started buildin a new engine.. :smirk: So here is the porting work I got done today.. the ex ports are about done an the intakes are just roughly cut to size, but still need massive work.. but you can get a idea of the size of my side port..



Exaust
Old Nov 7, 2002 | 03:37 AM
  #55  
Dragon's Avatar
Senior Member
 
Joined: Sep 2002
Posts: 2,550
Default

Primary ports.. are bigger than the stock secondary ports.. :bigthumg: and the same size as the new secondary ports while staying away from the H2O..
Old Nov 7, 2002 | 01:08 PM
  #56  
fdracer's Avatar
Member
 
Joined: Nov 2002
Posts: 92
Default

Originally Posted by Fd3BOOST' date='Nov 4 2002, 06:11 PM
Hey Judge Ito. Why do you square off the top of your ports? Any special reason or is that just the way that you do it?
anyone get to the bottom of this yet?
Old Nov 7, 2002 | 03:41 PM
  #57  
Baldy's Avatar
Super Moderator
 
Joined: Sep 2002
Posts: 5,425
From: Tallahassee, FL
Default

I'm guessing porting is something I wouldn't want to try on my own for the first time on my only car, right? In that light, is the best thing to mail it off to

someone to do it for me?
Old Nov 7, 2002 | 05:51 PM
  #58  
Fd3BOOST's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2002
Posts: 9,725
From: La Plata, Maryland
Default

Originally Posted by Baldy' date='Nov 7 2002, 01:41 PM
I'm guessing porting is something I wouldn't want to try on my own for the first time on my only car, right? In that light, is the best thing to mail it off to

someone to do it for me?
Unless you can get with someone who knows what they are doing. I would sugest that you send it to a reputable shop.

A mistake can cost you about $300. Thats the cost of a new housing. I have been getting good pointers from a freind that does it quite often.
Old Nov 7, 2002 | 06:08 PM
  #59  
Fd3BOOST's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2002
Posts: 9,725
From: La Plata, Maryland
Default

Sorry to hear about you engine Dragon. You should stop trying to kill every car on the road. Your engine will live longer man.
Old Nov 7, 2002 | 06:10 PM
  #60  
vosko's Avatar
Super Moderator
 
Joined: Jul 2001
Posts: 17,839
From: NJ
Default

looks good!



All times are GMT -5. The time now is 09:54 PM.