What is Street Porting? (searched)
What is Street Porting? (searched)
Open up! Search Warrant!
Joined: May 2002
Posts: 3,838
Likes: 3
From: Kicking down doors in a neighborhood near you
do you know what the ports in a rotary engine look like? If not, go to www.howstuffworks.com and search rotary engine. Lots of neat pics.
Street porting is when you increase the size of the ports. Its like taking a piston engine and giving it a slightly bigger cam.
There are different types of porting (different shapes and sizes). Go to http://www.mazdatrix.com/s.htm to see them.
Street porting is when you increase the size of the ports. Its like taking a piston engine and giving it a slightly bigger cam.
There are different types of porting (different shapes and sizes). Go to http://www.mazdatrix.com/s.htm to see them.
Displacement > Boost
Joined: Oct 2002
Posts: 3,503
Likes: 0
From: Mississippi
Port opens no earlier than the arc scribed by the leading edge of opening side seal, and closes as late as the builder wants. No bridges, holes, etc. outside of the port opening.
(this is the SCCA road racing definition). Basically you increase the port timing, like a cam on a piston engine. You can make the port bigger if you want, and you can even hog out the port runners if you don't like low end torque.
(this is the SCCA road racing definition). Basically you increase the port timing, like a cam on a piston engine. You can make the port bigger if you want, and you can even hog out the port runners if you don't like low end torque.
Senior Member
Joined: Feb 2004
Posts: 702
Likes: 0
From: NYC/Stony Brook Univ.
Street Porting is simply allowing the intake phase to begin earlier and close later, it's up to the porter where it begins and stops. As stated earlier check mazdatrix.com for pics (iirc). Again, as stated above, if you are familiar with the piston engine, it's similar to changing the cam profile.
Last edited by Aaron Cake; Feb 21, 2005 at 10:48 AM.
Thread Starter
Junior Member
Joined: Oct 2003
Posts: 24
Likes: 0
From: Canada
BlaCkPlaGUE I did use the search engine but because it street porting being talked in some many different ways I went through a number of posts and only got part answers. All I am trying to do here is learn. If you are going to spend the time to just get mad at me go find something else to do.
Thank you to everyone that helped. How much larger do they normally enlarge the ports by?
Thank you to everyone that helped. How much larger do they normally enlarge the ports by?
Trending Topics
go to www.google.com
type rotary porting, or streetport, anything....
type rotary porting, or streetport, anything....
Is that thing Turbo?
Joined: Jan 2004
Posts: 1,411
Likes: 0
From: Maryland
The mazdatrix site has a nice explanation of porting and the different styles. I guess you could compare porting on a rotary to getting a cam and porting the heads in a piston engine since it will increase flow and can change the time at which the air/fuel enters the combustion chamber
Last edited by Aaron Cake; Feb 21, 2005 at 10:49 AM.
King of the Loop
Joined: Apr 2004
Posts: 2,620
Likes: 1
From: brooklyn, New York
read this : http://www.mazdarotary.net/porting.htm
mild port on there is also called a street port because it still allows the car to maintain driveability and be driven on the street.
mild port on there is also called a street port because it still allows the car to maintain driveability and be driven on the street.
Thread
Thread Starter
Forum
Replies
Last Post
