All Motor / Naturally Aspirated No power adders

My ported GSR head flows 261 & 189 @ 28"

Thread Tools
 
Search this Thread
 
Old Jan 15, 2014 | 06:13 PM
  #1  
blue1gen's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2013
Posts: 17
Likes: 0
From: Idaho
Default My ported GSR head flows 261 & 189 @ 28"

Seems like it could be better. How does this compare on the scale of good flowing heads?
Reply
Old Jan 15, 2014 | 06:29 PM
  #2  
Untengijutsu's Avatar
Honda-Tech Member
 
Joined: Oct 2006
Posts: 161
Likes: 0
From: Quebec
Default Re: My ported GSR head flows 261 & 189 @ 28"

what lift ?

B18CR head, Portflow job
At .500 and 28''

288.4CFM intake, 202.4CFM exhaust
Uncut guides

I trully like this head and the servies I got from Tom and Laskey Racing, it putted good power too, see sig.
Reply
Old Jan 15, 2014 | 08:06 PM
  #3  
blue1gen's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2013
Posts: 17
Likes: 0
From: Idaho
Default Re: My ported GSR head flows 261 & 189 @ 28"

.500", 288" & 202" is impressive. Was that with stock valves?
Reply
Old Jan 16, 2014 | 08:04 AM
  #4  
slowsleeper's Avatar
Honda-Tech Member
 
Joined: Mar 2004
Posts: 1,176
Likes: 0
Default Re: My ported GSR head flows 261 & 189 @ 28"

Every flowbench reads a little different from one another even though they are/should be calibrated. Most "ported" heads flow around 280ish CFM intake though so take that for what its worth. If it can flow around there you'll be able to make good power from it. Obviously the shops with more experience and technology would be able to get more flow than 280 but 280 would be a decent flow number to base off of.
Reply
Old Jan 16, 2014 | 03:47 PM
  #5  
Untengijutsu's Avatar
Honda-Tech Member
 
Joined: Oct 2006
Posts: 161
Likes: 0
From: Quebec
Default Re: My ported GSR head flows 261 & 189 @ 28"

Originally Posted by blue1gen
.500", 288" & 202" is impressive. Was that with stock valves?
Stock size, off the shelf supertech dished valves.
I wanted to keep the guide uncut, Mike at Laskey was also impressed by the number for this job.
Reply
Old Jan 17, 2014 | 01:12 PM
  #6  
93egSLEEPER's Avatar
Honda-Tech Member
 
Joined: Apr 2007
Posts: 7,637
Likes: 4
From: Seahawks WA, USA
Default Re: My ported GSR head flows 261 & 189 @ 28"

I posted in another thread but I have my head I hand ported flowing right at 290/205. It took ALOT of time and fine tuning, but it will be worth it when I finally get to slap it on.
Here is a pic
Attached Images  
Reply
Old Jan 17, 2014 | 01:49 PM
  #7  
blue1gen's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Sep 2013
Posts: 17
Likes: 0
From: Idaho
Default Re: My ported GSR head flows 261 & 189 @ 28"

Really nice. I'm going to give them a hard time. I picked it up to check v2v clearances & when I take it back I'll say they can finish porting it now.
Reply
Old Jan 17, 2014 | 08:25 PM
  #8  
1998GsRIntegra's Avatar
Honda-Tech Member
 
Joined: Aug 2010
Posts: 2,686
Likes: 1
From: Maryland
Default Re: My ported GSR head flows 261 & 189 @ 28"

Was any work done to the chambers?
Reply
Old Jan 23, 2014 | 06:03 AM
  #9  
J.Berta's Avatar
Honda-Tech Member
 
Joined: Jul 2004
Posts: 248
Likes: 0
From: Byron, Ga, USA
Default

This is my gsr head before and after with stock valves.



Name:  ForumRunner_20140123_100313.png
Views: 877
Size:  1.19 MB
Reply
Old Jan 23, 2014 | 06:06 AM
  #10  
J.Berta's Avatar
Honda-Tech Member
 
Joined: Jul 2004
Posts: 248
Likes: 0
From: Byron, Ga, USA
Default

Sorry for the pic being sideways. I don't understand why it rotated like that.
Reply
Old Jan 23, 2014 | 06:18 AM
  #11  
93egSLEEPER's Avatar
Honda-Tech Member
 
Joined: Apr 2007
Posts: 7,637
Likes: 4
From: Seahawks WA, USA
Default Re: My ported GSR head flows 261 & 189 @ 28"

Originally Posted by 1998GsRIntegra
Was any work done to the chambers?
Were you asking me or the OP?

JBerta that flow chart looks nice for a street head
Reply
Old Jan 23, 2014 | 11:49 AM
  #12  
vtecmasta85's Avatar
B*a*n*n*e*d
 
Joined: Feb 2011
Posts: 541
Likes: 0
From: where im not frm and just reside
Default Re: My ported GSR head flows 261 & 189 @ 28"

Originally Posted by blue1gen
Seems like it could be better. How does this compare on the scale of good flowing heads?



Do you have a flow chart for the head? For instance a stock itr head usually flows around 260-265 stock depending on where it was tested at.. cfm is just capability really, the numbers in my opinion are just numbers if one doesnt have the support mods to use that cfm number. Your head might be a low/mid lift monster and you not even know it :-D.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
carlosd68
Forced Induction
11
Jan 2, 2013 05:28 AM
H-allmotorda9
All Motor / Naturally Aspirated
17
Feb 6, 2010 07:40 PM
whatisJDM
Forced Induction
3
Apr 8, 2007 12:27 PM
AlienKrOZ
Tech / Misc
2
Dec 23, 2006 11:13 AM
meanteg
Forced Induction
5
Aug 30, 2003 03:54 PM




All times are GMT -8. The time now is 02:51 AM.