Fordmods Logo

Match port and polish?? 


Page 3 of 3 [ 34 posts ] Go to page Previous  1, 2, 3

Posted: Mon Nov 07, 2005 11:16 am 
ACT Cruise Moderator
User avatar

Age: 35

Posts: 6275

Joined: 24th Nov 2004

Ride: '06 BF GT-P

Power: 293 rwkw

Location: Canberra
ACT, Australia

Shouldn't tuned extractors not require that? As the length of the pipes should ensure the gas flow is correct and unimpeeded.



1998 DL LTD in Sparkling Burgundy, daily, 302W, stereo, slow - 97.5rwkw
2006 BF GT-P in Ego, mods. 293rwkw - 12.427@109 - 0-1000m 24.838@221

Posted: Mon Nov 07, 2005 11:31 am 
Getting Side Ways

Posts: 6913

Joined: 6th Nov 2004

Gallery: 4 images

Ride: BF XR6, BF XT Wagon

Power: 197 rwkw

Location: Perth
WA, Australia

blackjack_original wrote:
Yeah, because of back pressure... sort of. as it was explained to me... when you have the lip, it reduces the pulses of the back pressure... if that makes sense... you can still have overall back pressure from the exhaust, but the lip reduces the pulse when one of the other cylinders pushes out gas out... understand what i'm trying to say? This is the reason why most stock headers and presumably aftermarket headers are bigger in diamater than the ports in the head, to create that lip.

I understand what your saying. I've been re-educated by you and tickford_6.



Timmeh banned himself from being a moderator.

Posted: Mon Nov 07, 2005 10:14 pm 
Getting Side Ways

Posts: 6449

Joined: 11th Nov 2004

here are some links that might interest a few people.
also might help put a few myths to rest ... 05phr_exh/

be sure too read both pages on the super chevy one

not exactly porting realated. but any way




Posted: Mon Nov 07, 2005 10:54 pm 
Getting Side Ways
User avatar

Age: 30

Posts: 11101

Joined: 15th Nov 2004

Ride: AU III XR8 Pursuit 250 ute

Location: Hobart
TAS, Australia

There used to be (many years ago -before I was around), a compay that made extractors that were that anti reversion the specially put a lip in the head mounting place of the extractors for it.



Heaps of performance EF/L parts for sale, including supercharged VCT motor!

2002 Ford AU Series III Falcon XR8 Pursuit 250 ute - 5.6L of V8 Windsor!

Display posts from previous:
Sort by  
 Page 3 of 3  [ 34 posts ]  Go to page Previous  1, 2, 3

Who is online

Users browsing this forum: Facebook [Bot], MSNbot Media and 24 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum



It is currently Tue Oct 25, 2016 10:45 am All times are UTC + 11 hours



(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names