Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Honda Civic/Del Sol (1992 - 2000)
Sign in using an external account
Register Forgot Password?
Search


Welcome to Honda-Tech!
Welcome to Honda-Tech.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Honda-Tech community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread
Old 04-08-2003, 06:56 PM   #1
mattcxb18
Garage is empty, add now
 
Join Date: Sep 2002
Location: This is the Vtec Monster from, HELL, U.S.A
Posts: 560
iTrader Rating: (0)
Send a message via AIM to mattcxb18
Default B16 head vs. B18 head = Good Info

On another post I read that the B18 had better flow then the b16.
I Just wanted to say somethings about that. Below is a chart from the post earlier.


Click the image to open in full size.

B16 is better, or the same...Look at that graph again. I just noticed something. Look at the valve lift. The b18 doesn't beat the b16 until .450 valve lift.. I reallllly doubt that ANY honda unless it's got a BIG ASS cam is gonna have .450 valve lift. anything in the .450 range of valve lift is a serious cam usually. cranes BIGGEST BADDEST b18 cam only has .472intake / .457 exhaust lift. And that is a race only cam look what crane says about it.
Race Only Roller Cam
Pro stock - all motor - naturally aspirated
Pro class modifications needed
Check valve to piston clearance
Minimum compression ratio 12.5:1

Anyways...With a regular valve lift number, the b16 out flows the b18, or ties with it. I'de like to see a cam that has .500 lift like that chart shows. Just something to think about.
If you wanna check it out. go to Acura VTEC Cams and go to the LAST cam, it's the baddest one. And according to that chart, the b18 outflowed the b16 overall by 2 cfm.
2 cfm isn't ****. You wouldn't even notive 2 cubic foot per MINUTE. So i guess it doesn't matter which head you go with. Just get the one with higher compression. Plus i wonder how accurate that chart is anyways. That's such a close flow number, I wonder if it's correct. 2cfm is sooo tiny.


[Modified by mattcxb18, 11:56 PM 4/8/2003]
mattcxb18 is offline   Reply With Quote
Old 04-08-2003, 07:14 PM   #2
SOUNDEFFECTS
Honda-Tech Member
Garage is empty, add now
 
SOUNDEFFECTS's Avatar
 
Join Date: Oct 2001
Location: Lost in turbo world, Florida
Posts: 1,316
iTrader Rating: (0)
Send a message via AIM to SOUNDEFFECTS
Default Re: B16 head vs. B18 head (mattcxb18)

good info Click the image to open in full size.
__________________
Old School Boost Junkie
SOUNDEFFECTS is offline   Reply With Quote
Old 04-09-2003, 09:34 AM   #3
mattcxb18
Garage is empty, add now
 
Join Date: Sep 2002
Location: This is the Vtec Monster from, HELL, U.S.A
Posts: 560
iTrader Rating: (0)
Send a message via AIM to mattcxb18
Default Re: B16 head vs. B18 head (SOUNDEFFECTS)

Also, I would assume that this was a test just thru one port. Not like that makes any difference though. Click the image to open in full size.
mattcxb18 is offline   Reply With Quote
Old 04-09-2003, 09:47 AM   #4
Chris y0!
Honda-Tech Member
Garage is empty, add now
 
Join Date: Sep 2002
Location: 805, socal, USA
Posts: 2,997
iTrader Rating: (0)
Default Re: B16 head vs. B18 head

exactly. the range of lift that normal camshafts utilize is where the b16 outflows the b18.

the b18 head only outflows the b16 head after .475 valve lift. no streetable cam lifts that much.

the b16 head flows a little better than the b18 head Click the image to open in full size.
__________________
Buy my motorcycle
http://www.hondamarketplace.com/show....php?t=2948825
Chris y0! is offline   Reply With Quote
Old 04-09-2003, 10:05 AM   #5
white99gsr
Junior Member
Garage is empty, add now
 
white99gsr's Avatar
 
Join Date: Mar 2003
Location: va, usa
Posts: 188
iTrader Rating: (0)
Default Re: B16 head vs. B18 head (Spoon Hybrid)

Ok, the B16 head is essentially an ITR head without the polishing, no wonder it outflows the GSR head........NA. The GSR head on the other hand is a far better flowing head for FI. It has better a better swirl effect because of the dome shape.
__________________
92 B18C-T powered CX
97 cobra- daily driver http://images.honda-tech.com/set1/smile/emsmile.gif
white99gsr is offline   Reply With Quote
Old 04-09-2003, 10:11 AM   #6
Chris y0!
Honda-Tech Member
Garage is empty, add now
 
Join Date: Sep 2002
Location: 805, socal, USA
Posts: 2,997
iTrader Rating: (0)
Default Re: B16 head vs. B18 head (white99gsr)

Quote:
Originally Posted by white99gsr
Ok, the B16 head is essentially an ITR head without the polishing, no wonder it outflows the GSR head........NA. The GSR head on the other hand is a far better flowing head for FI. It has better a better swirl effect because of the dome shape.
that's fabulous. we are talking about NA here.
__________________
Buy my motorcycle
http://www.hondamarketplace.com/show....php?t=2948825
Chris y0! is offline   Reply With Quote
Old 04-09-2003, 10:32 AM   #7
976
New User
Garage is empty, add now
 
976's Avatar
 
Join Date: Jul 2001
Location: Extraordinary Machine
Posts: 4,523
iTrader Rating: (0)
Default Re: B16 head vs. B18 head (Spoon Hybrid)

Is that a 1st generation, or 2nd? I take it that it is a JDM head/block since it's B16.
__________________
[url="http://www.honda-tech.com/zerothread?id=897386"]My garage sale![/url]

[b]Take pride in the human race, not your country.
The best part of being imperfect is the room to improve.
"...I fight for the ones who can't fight, if I lose at least I tried..." <FONT COLOR="red">Slipknot</FONT>

<FONT COLOR="blue">[i]B5 2.8 (Audi)
EH2 1.6 DOHC VTEC (Honda)[/i]</FONT> [b] - Stolen 5/01/04[/b]
976 is offline   Reply With Quote
Old 04-09-2003, 11:55 AM   #8
TORQUEbeast
Garage is empty, add now
 
TORQUEbeast's Avatar
 
Join Date: Apr 2003
Location: Sol, CA
Posts: 2
iTrader Rating: (0)
Default

good to know.
__________________
If you're still in control, then you're not going fast enough. [img]http://images.honda-tech.com/set1/smile/emwink.gif[/img]
TORQUEbeast is offline   Reply With Quote
Old 04-09-2003, 03:25 PM   #9
mattcxb18
Garage is empty, add now
 
Join Date: Sep 2002
Location: This is the Vtec Monster from, HELL, U.S.A
Posts: 560
iTrader Rating: (0)
Send a message via AIM to mattcxb18
Default Re: B16 head vs. B18 head (white99gsr)

Quote:
Originally Posted by white99gsr
Ok, the B16 head is essentially an ITR head without the polishing, no wonder it outflows the GSR head........NA. The GSR head on the other hand is a far better flowing head for FI. It has better a better swirl effect because of the dome shape.
How is the same head going to flow better with FI or NA? It should not matter. The flows would come down to the port size and cam lift. It should not matter if air is being pushed or pulled in.
mattcxb18 is offline   Reply With Quote
Old 04-11-2005, 11:34 AM   #10
EgxHaTcHxGsR
Junior Member
Garage is empty, add now
 
EgxHaTcHxGsR's Avatar
 
Join Date: May 2004
Location: Tacoma, WA, U.S.A.
Posts: 30
iTrader Rating: (0)
Send a message via AIM to EgxHaTcHxGsR
Default Re: B16 head vs. B18 head (mattcxb18)

uhmm... so if u put a b16 block with gsr head will it be slower or same as just a whole b16?
EgxHaTcHxGsR is offline   Reply With Quote
Old 04-11-2005, 12:39 PM   #11
rukawa1one
As long as I dont have to take out any more Metal Gears
Garage is empty, add now
 
Join Date: Aug 2003
Location: Socal, CA, USA
Posts: 2,267
iTrader Rating: (0)
Send a message via AIM to rukawa1one
Default Re: B16 head vs. B18 head = Good Info (mattcxb18)

good info, thatsexactly why i'm leaning towards a b16 instead of a b18
rukawa1one is offline   Reply With Quote
Old 04-11-2005, 12:41 PM   #12
civiccpedx
Garage is empty, add now
 
civiccpedx's Avatar
 
Join Date: Sep 2004
Location: JERSEY, USA
Posts: 1,397
iTrader Rating: (0)
Default Re: B16 head vs. B18 head = Good Info (rukawa1one)

nice info, HT needs more techies like you Click the image to open in full size. Click the image to open in full size.
__________________


Great turbo write-up/how-to [img]http://images.honda-tech.com/set1/smile/emthup.gif[/img] [url="http://www.honda-tech.com/zerothread?id=1263795"]http://www.honda-tech.com/zerothread?id=1263795[/url]
civiccpedx is offline   Reply With Quote
Old 04-13-2005, 04:11 AM   #13
HatchEh2
Member
Garage is empty, add now
 
HatchEh2's Avatar
 
Join Date: Sep 2004
Location: Windchestertonfieldville, NJ, USA
Posts: 1,555
iTrader Rating: (0)
Default Re: B16 head vs. B18 head = Good Info (civiccpedx)

Quote:
Originally Posted by EgxHaTcHxGsR
uhmm... so if u put a b16 block with gsr head will it be slower or same as just a whole b16?
someone should answer this because id like to know aswell Click the image to open in full size.
__________________
FS:-GSR In.mani-2 OBD2a GSR dizzy's-GSR valve train-EG AEM V2 Intake -EG clutch fluid lines -MINT B17 in.mani -MINT GSR CRANK -GSR rods with ITR pistons
HatchEh2 is offline   Reply With Quote
Old 04-13-2005, 05:08 AM   #14
hisownhero
Junior Member
Garage is empty, add now
 
hisownhero's Avatar
 
Join Date: Mar 2004
Location: Rochester,, NY, USA
Posts: 317
iTrader Rating: (0)
Send a message via AIM to hisownhero
Default Re: B16 head vs. B18 head = Good Info (mattcxb18)

mad good info Matt Click the image to open in full size.
__________________
AP1 New Formula Red
EJ2 Milano Red ... you will be missed http://images.honda-tech.com/set1/smile/emsad.gif

Vouch: jaa1311 (ITR Steering Wheel)
hisownhero is offline   Reply With Quote
Old 04-13-2005, 06:53 AM   #15
eg crunkmonster
Honda-Tech Member
Garage is empty, add now
 
eg crunkmonster's Avatar
 
Join Date: Mar 2003
Location: Miramar, FL
Posts: 3,299
iTrader Rating: (0)
Send a message via AIM to eg crunkmonster
Default Re: B16 head vs. B18 head = Good Info (rukawa1one)

Quote:
Originally Posted by EgxHaTcHxGsR
uhmm... so if u put a b16 block with gsr head will it be slower or same as just a whole b16?
you would drop raise the compression a little bit



Modified by eg crunkmonster at 10:46 PM 10/30/2005
__________________
FS" 1995 Honda Civic CX hatchback Turbo'd Gramlights Neukin Manifold Buddy Club Coilovers and lots more

http://www.honda-tech.com/zerothread?id=2260067
eg crunkmonster is offline   Reply With Quote
Old 05-19-2005, 02:41 AM   #16
TEAMTUNNELVISION
Garage is empty, add now
 
TEAMTUNNELVISION's Avatar
 
Join Date: Nov 2004
Location: POUGHKEEPSIE, NY, USA
Posts: 25
iTrader Rating: (0)
Send a message via AIM to TEAMTUNNELVISION
Default Re: B16 head vs. B18 head (SOUNDEFFECTS)

Good reading you did on that chart I wouldnt mind seing that chart my self, but the only reason I think they say the head is better on the g.s.r than the b16 is the fact that the g.s.r head has more compression due to a tighter quench area that gives it more compression. I know you all motor cats love the whole compression deal. As a matter of fact I have a g.s.r head I would like to trade for a b16 head or type r head. Im a boost guy and I need lower compression. Maybe somone could help ? 347-386-7065 Will

http://WWW.TEAMTUNNELVISION.COM
__________________
Im all BUSINESS and build my cars to give my competion the same ! [img]http://images.honda-tech.com/set1/smile/emthdown.gif[/img]
TEAMTUNNELVISION is offline   Reply With Quote
Old 05-19-2005, 09:13 AM   #17
EJ8VTEC
Mr. Indecisive
2004 Acura TSX
 
EJ8VTEC's Avatar
 
Join Date: Apr 2005
Location: the Shore, NJ
Posts: 2,180
iTrader Rating: (0)
Default Re: B16 head vs. B18 head (TEAMTUNNELVISION)

Quote:
Originally Posted by TEAMTUNNELVISION
Good reading you did on that chart I wouldnt mind seing that chart my self, but the only reason I think they say the head is better on the g.s.r than the b16 is the fact that the g.s.r head has more compression due to a tighter quench area that gives it more compression. I know you all motor cats love the whole compression deal. As a matter of fact I have a g.s.r head I would like to trade for a b16 head or type r head. Im a boost guy and I need lower compression. Maybe somone could help ? 347-386-7065 Will

http://WWW.TEAMTUNNELVISION.COM
Quote:
Originally Posted by eg cookiemonster
you would drop the compression a little bit
K u guys said 2 different things...
__________________
DD: 04 NBP CL9 6MT/Navi | Sold: 00 CGP EJ8
Go Lakers! Go Packers! PSN: LugNutZ-
EJ8VTEC is offline   Reply With Quote
Old 05-19-2005, 10:43 AM   #18
vacantskies88
Member
Garage is empty, add now
 
vacantskies88's Avatar
 
Join Date: Feb 2005
Posts: 1,203
iTrader Rating: (0)
Default Re: B16 head vs. B18 head (EJ8VTEC)

the b16 flows better but the b18 yields more compression, no?
vacantskies88 is offline   Reply With Quote
Old 05-19-2005, 10:49 AM   #19
honda etr (vw)
Garage is empty, add now
 
honda etr (vw)'s Avatar
 
Join Date: May 2005
Location: highland, ny, u s a
Posts: 6
iTrader Rating: (0)
Default Re: B16 head vs. B18 head = Good Info (mattcxb18)

son i would go with a b-16 b1 c5 11d single fire that **** i off the hook Click the image to open in full size.
honda etr (vw) is offline   Reply With Quote
Old 05-19-2005, 11:02 AM   #20
dantastic
Honda-Tech Member
Garage is empty, add now
 
dantastic's Avatar
 
Join Date: May 2003
Location: 818 y0, CA, USA
Posts: 3,041
iTrader Rating: (0)
Default

i thought it was common knowledge that the PR3 (B16a, B18C-R) head flows better than P72 GSR head....
__________________
I miss my hatch!
dantastic is offline   Reply With Quote
Old 05-19-2005, 11:31 AM   #21
mattssi
Member
Garage is empty, add now
 
mattssi's Avatar
 
Join Date: Nov 2003
Location: salem, or, usa
Posts: 1,307
iTrader Rating: (0)
Send a message via ICQ to mattssi Send a message via AIM to mattssi
Default Re: (dantastic)

the p72 head will yield higher compression.
__________________
"Don't draw fire; it irritates the people around you." - Your Buddies
mattssi is offline   Reply With Quote
Old 05-19-2005, 11:32 AM   #22
mattssi
Member
Garage is empty, add now
 
mattssi's Avatar
 
Join Date: Nov 2003
Location: salem, or, usa
Posts: 1,307
iTrader Rating: (0)
Send a message via ICQ to mattssi Send a message via AIM to mattssi
Default Re: B16 head vs. B18 head = Good Info (honda etr (vw))

Your dumb. Not a good way to start you stay here.
__________________
"Don't draw fire; it irritates the people around you." - Your Buddies
mattssi is offline   Reply With Quote
Old 05-19-2005, 11:39 AM   #23
IHateJDM
Member
Garage is empty, add now
 
IHateJDM's Avatar
 
Join Date: Dec 2003
Location: Respek my Fresh
Posts: 4,326
iTrader Rating: (0)
Send a message via AIM to IHateJDM
Default Re: B16 head vs. B18 head = Good Info (mattcxb18)

Quote:
Originally Posted by mattcxb18
On another post I read that the B18 had better flow then the b16.
I've always heard the b16 was better. In fact I don't think i've ever heard anyone say the b18 is better. Good post though.
IHateJDM is offline   Reply With Quote
Old 05-19-2005, 12:03 PM   #24
92b16vx
Honda-Tech Member
1999 Honda Civic
 
92b16vx's Avatar
 
Join Date: Nov 2002
Location: Corpus Christi, TX
Posts: 2,393
iTrader Rating: (0)
Send a message via AIM to 92b16vx
Default Re: B16 head vs. B18 head (white99gsr)

Quote:
Originally Posted by white99gsr
Ok, the B16 head is essentially an ITR head without the polishing, no wonder it outflows the GSR head........NA. The GSR head on the other hand is a far better flowing head for FI. It has better a better swirl effect because of the dome shape.
That is so *** backwards.
92b16vx is offline   Reply With Quote
Old 05-19-2005, 12:06 PM   #25
mwieczorek43
Honda-Tech Member
Garage is empty, add now
 
mwieczorek43's Avatar
 
Join Date: Aug 2004
Location: resident ht bully, USA
Posts: 2,499
iTrader Rating: (0)
Default Re: B16 head vs. B18 head = Good Info (IHateJDM)

Quote:
Originally Posted by dantastic
i thought it was common knowledge that the PR3 (B16a, B18C-R) head flows better than P72 GSR head....
Quote:
Originally Posted by IHateJDM
I've always heard the b16 was better. In fact I don't think i've ever heard anyone say the b18 is better. Good post though.
Im with these two. This post is some shocking revelation Click the image to open in full size. Click the image to open in full size.
__________________
Before completion, pictures of my eh. Stolen and never recovered. Forever missed.
mwieczorek43 is offline   Reply With Quote
 
 
 
submit to reddit
Reply

Tags
18, 1generation, b16, b16a, b18, b18a, b18c, bigger, cfm, generation, head, heads, honda, stock, valve

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -8. The time now is 01:50 AM.



2008 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details