[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4752: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3887)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4754: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3887)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4755: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3887)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4756: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3887)
Tractorsport Flowbench Forum Archive • View topic - Nice Port Work - UK Company Porting

Nice Port Work - UK Company Porting

Have an interesting technique, tool or just anything related to porting? Post it here . . . please no bashing anyone for the model of engine they are working, we're here to share ideas . . .

Postby larrycavan » Sat May 07, 2005 9:34 pm

I happened on this website today.
larrycavan
Site Admin
 
Posts: 1183
Joined: Fri Apr 01, 2005 4:40 pm

Postby Rick360 » Sun May 08, 2005 12:18 am

With all of that CNC equipment and high dollar looking measuring instruments and the flowbench is nothing more than a souped up SF110 clone. They only flow test at 10" and say flowing higher is unnecessary with small engines. Don't think I agree with that statement. Nice looking port work, but nice looking doesn't mean much.

What's up with calling them "gas flowed" heads? Is that what they call it in UK, or is it just their own marketing gimmick?

Rick
Rick360
 
Posts: 58
Joined: Tue Dec 14, 2004 8:41 pm
Location: MO

Postby larrycavan » Sun May 08, 2005 10:17 am

larrycavan
Site Admin
 
Posts: 1183
Joined: Fri Apr 01, 2005 4:40 pm

Postby hollywood63 » Sun May 08, 2005 10:11 pm

I'm not going to doubt anyones porting skills here or the fact that yes the site has some nice LOOKING ports. But being this is the porting side of the forum what is the purpose of cutting the valve guide down and leaving the back side of the guide below the port ceiling?
I'm not sure what the "stock" port looked like but the ports seem to be for a High RPM eng. no??? ???
Art :)
hollywood63
 
Posts: 59
Joined: Mon Nov 15, 2004 10:25 pm
Location: U.P of Michigan

Postby larrycavan » Mon May 09, 2005 7:50 am

larrycavan
Site Admin
 
Posts: 1183
Joined: Fri Apr 01, 2005 4:40 pm

Postby SWB » Mon May 09, 2005 12:03 pm

"Gas flowing" is a common Euro Term.

Do they do the valve job too? They didn't seem to mention much of that on their site, but if they don't, you may not be getting much...

Sean
SWB
 
Posts: 38
Joined: Fri Jan 23, 2004 10:56 pm

Postby larrycavan » Mon May 09, 2005 10:53 pm

larrycavan
Site Admin
 
Posts: 1183
Joined: Fri Apr 01, 2005 4:40 pm

Postby cboggs » Fri May 20, 2005 1:16 am

It does look nice, .. but I build a few heads they have on their
site for a few racing series. Won the US & Canadian champoinships
with them, .. and their flow numbers are nothing close to what we get, ..

Curtis
Curtis Boggs
Racing Flow Development.
cboggs
 
Posts: 118
Joined: Sun Mar 06, 2005 12:39 pm
Location: Lorton, VA

Postby larrycavan » Wed May 25, 2005 11:19 am

larrycavan
Site Admin
 
Posts: 1183
Joined: Fri Apr 01, 2005 4:40 pm

Postby cboggs » Fri May 27, 2005 2:16 am

Thanks larry, .

Curtis
Curtis Boggs
Racing Flow Development.
cboggs
 
Posts: 118
Joined: Sun Mar 06, 2005 12:39 pm
Location: Lorton, VA

Postby RWD19T » Tue Sep 25, 2007 9:24 am

After recently completing my own flowbench I found the VW 8V figures to be highly inflated in stock and ported form. With the nature of the curve being equal to that of a bench calibrated at 28in drop and then being flowed at a 10in drop. The VW 16v heads however appear to be spot on in the ported form. However they fail to show in the standard form the massive flatspot these heads suffer from between 200-450thou lift. Personally I think it is a good thing to show crap standard figs. Go figure.
RWD19T
 
Posts: 7
Joined: Fri Oct 06, 2006 3:28 pm
Location: UK

Postby jsa » Wed Sep 26, 2007 6:18 am

For the YB heads they use bore adapters 2mm larger than normal bore size resulting in any easy increase in flow.
Cheers

John
jsa
 
Posts: 189
Joined: Wed Jul 05, 2006 3:13 am
Location: Australia

Postby SWR » Fri Nov 23, 2007 6:33 pm

SWR
 
Posts: 121
Joined: Fri Dec 15, 2006 7:47 pm
Location: Norway

Postby SWR » Mon Nov 26, 2007 1:40 pm

After reading up a bit on those heads and their PFA-sheets,I'm not impressed either... a 3.9375" bore adapter used on an engine with a stock bore of 3.5756"... Supposed to be a big-valve monster head,and the intakes are stock at 35mm (1.37") and the exhausts are 31mm (1.22") which is one mm up...port areas are off,and the "stock head" they're comparing with have smaller than stock valves... really,really impressive. ???
SWR
 
Posts: 121
Joined: Fri Dec 15, 2006 7:47 pm
Location: Norway

Postby larrycavan » Fri Nov 30, 2007 12:42 pm

larrycavan
Site Admin
 
Posts: 1183
Joined: Fri Apr 01, 2005 4:40 pm

Next

Return to Porting techniques?

Who is online

Users browsing this forum: No registered users and 1 guest