New Street Porting Work
03-03-2005, 03:26 PM
#23
Member
Join Date: Jun 2003
Posts: 34
You can screw this up though as paul yaw wrote about. Think of the inside air (not the laminar air) like tubing behind a boat. When you make a quick(radius) yet not abrupt(90) turn the tube is going much faster than the boat. If you make a 90 degree turn the boat nearly stops and the tube does the same shortly after. The oppisite happens with a large radius. Not engough sling shot and the air moves slower
Love the analogy of tubing behind a boat! And yeah I agree...
03-04-2005, 10:08 AM
#25
Senior Member
Join Date: Aug 2004
Posts: 426
these are cheap:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...7305080279&rd=1
i just got a whole setup for $50
it'll be killer for visualising what the air is doing--especially around the port closing edge.
if the closing edge is radiused, and the upper part of the port (closest to the corner seal) is extended just a little beyond the inner part, the air can actually make a little swirl.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...7305080279&rd=1
i just got a whole setup for $50
it'll be killer for visualising what the air is doing--especially around the port closing edge.
if the closing edge is radiused, and the upper part of the port (closest to the corner seal) is extended just a little beyond the inner part, the air can actually make a little swirl.
03-04-2005, 11:27 AM
#26
Senior Member
Thread Starter
Join Date: Jun 2003
Location: Grand Prairie, TX
Posts: 917
Originally Posted by guitarjunkie28' date='Mar 4 2005, 08:08 AM
these are cheap:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...7305080279&rd=1
i just got a whole setup for $50
it'll be killer for visualising what the air is doing--especially around the port closing edge.
if the closing edge is radiused, and the upper part of the port (closest to the corner seal) is extended just a little beyond the inner part, the air can actually make a little swirl.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...7305080279&rd=1
i just got a whole setup for $50
it'll be killer for visualising what the air is doing--especially around the port closing edge.
if the closing edge is radiused, and the upper part of the port (closest to the corner seal) is extended just a little beyond the inner part, the air can actually make a little swirl.
Swirl is good, Dave.
B
03-04-2005, 01:26 PM
#28
Senior Member
Join Date: Aug 2004
Posts: 426
oh yea, another thing i was playing with is the renesis rotors with the notch on the sides. those really intensify the effect.
as the rotor travels over the port closing edge, the air makes a turn from a rather linear path to going almost straight up. i'll try to get some videos of it--looks almost like the beginnings of a little dust devil.
as the rotor travels over the port closing edge, the air makes a turn from a rather linear path to going almost straight up. i'll try to get some videos of it--looks almost like the beginnings of a little dust devil.
