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CNC Ported Heads Dyno Graphs for F20B and H22a!!!

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Old Apr 14, 2003 | 08:31 PM
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Default CNC Ported Heads Dyno Graphs for F20B and H22a!!!

We have 2 dynographs that i think alot of you guys might appreciate. The first graph is of a pretty much stock H22a all it has is a dc Header and rsr exhaust. Base line showed us that we were make 176 Hp to the wheels and 144 Lbs of torque. With no other changes other then the Cnc ported head it made 188 Hp to the wheels and 151 Lbs of torque. It picked up 12Hp and 7lbs of torque. With some cams it should pick up alot more with the higher flowing head.

The second graph is of a F20B motor from the sir Accord in Japan. It is only 2.0 Liters. The F20B motor Has Jun Cams and valvetrain, Custom Header and Hondata. Our Baseline showed that it made 199HP and 140 lbs of torque. Adding only the Cnc Ported head We made 213Hp and 147 lbs of torque. We picked up 14Hp and 7 lbs of torque. No cam gear changes were made on both engines.We only tuned the Hondata to make sure A/F ratios were correct. We could have yielded about another 2 to 4 Hp from tuning them. I just wanted to compare apples with apples.

Both motors have stock blocks and are running on 91 octane of course.
Id like to thank Minh and Charles (our Fellow Honda-Tech members) for the Dyno Graphs. The h22a graph and install of the Cnc ported Head will be in Super Street Pretty soon.






Modified by prospeed at 10:04 PM 4/14/2003


Modified by prospeed at 10:05 PM 4/14/2003


Modified by prospeed at 10:08 PM 4/14/2003


Modified by prospeed at 10:12 PM 4/14/2003
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Old Apr 14, 2003 | 08:33 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)

Stinky linky no werky
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Old Apr 14, 2003 | 08:39 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (Seth Davis)

check it out now to see if it works!
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Old Apr 14, 2003 | 08:42 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)

yeah thats my f20b. bone stock.only head work, but soon i'll have the euro-r manifold. lookin for 220+ with just head work. thanks to Brian at Prospeed for all the help.
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Old Apr 14, 2003 | 08:59 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)

Wow, thats really nice gains on the H22a! Must have the headwork down to a science
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Old Apr 14, 2003 | 09:05 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)







Here you go..
Good ****.....
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Old Apr 14, 2003 | 09:09 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (gsrtyper)

thanks for posting it up for me~!
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Old Apr 14, 2003 | 09:14 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (gsrtyper)

Cool. I scanned it at a darker contrast.

http://www.geocities.com/lette...c.htm

Hopefully, with cams and a better header, I'll be making better gains. But my car definitely feels stronger. It was cool meeting Minh, and thanks to Brian for all the help.
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Old Apr 15, 2003 | 01:26 AM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (All-Motor H22A)

how much is diss CnC ported Head cost me? am in So Kali. and how long?
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Old Apr 15, 2003 | 05:38 AM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (SaotomeSH08)

nice numbers for the h22a
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Old Apr 15, 2003 | 05:50 AM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (Prelude Vtec 23)

Damnit, just wish P&P was legal for my raceclass!!
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Old Apr 15, 2003 | 08:08 AM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (Honda318dx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda318dx &raquo;</TD></TR><TR><TD CLASS="quote">Damnit, just wish P&P was legal for my raceclass!!</TD></TR></TABLE>

No one has to know right?
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Old Apr 15, 2003 | 08:22 AM
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is this your custom port or another company's? and the H22 is OBD1, right?

regardless, very nice numbers.
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Old Apr 15, 2003 | 12:20 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (SaotomeSH08)

We will be offering it for $1000. It will only take 2 weeks. We are distributing the heads for R&D dyno.
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Old Apr 15, 2003 | 12:29 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)

Yes both cars are obd-1.
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Old Apr 15, 2003 | 12:50 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)

Wow nice #'s
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Old Apr 15, 2003 | 03:59 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (FrostyDC4)

u guys play with any FI h23 heads yet? if so let me know..
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Old Apr 15, 2003 | 04:53 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (cpforyou)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cpforyou &raquo;</TD></TR><TR><TD CLASS="quote">

No one has to know right?</TD></TR></TABLE>

I'm with you, can't see it... (If you can live w/cheating to win a race!) The way Corey drives, he probably does not need it...
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Old Apr 15, 2003 | 05:39 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (BoostedH23a1)

sorry we haven't done any work on the h23a heads yet. We are offering it for the b16a and b18c heads.
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Old Apr 16, 2003 | 06:57 AM
  #20  
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (prospeed)

poo
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Old Apr 17, 2003 | 02:52 PM
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Default Re: CNC Ported Heads Dyno Graphs for F20B and H22a!!! (BoostedH23a1)

sorry bout that boosted. We only have them for the H and B series. K-series coming soon! The K series and s2000(f20c) heads blow away b and h series heads!
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Old Apr 30, 2003 | 04:33 AM
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Did you get a dyno graph with the Skunk2 Stage2's installed? What were the gains?
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Old Apr 30, 2003 | 11:43 AM
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Default Re: (EK22Tim)

We haven't had the time to drop them in yet but planning to very soon. I have some pics of the ports for you guys! Check it out and tell me what you guys think.

This Head is a H22a

Intake Port


Exhaust Port


Cumbustion Chamber



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Old Apr 30, 2003 | 12:17 PM
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Default Re: (prospeed)

Just curious - can you open things up for an overbore applications? What about valve enlargement?
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Old Apr 30, 2003 | 02:55 PM
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Default Re: (prospeed)

i had a question about the porting:

Why isnt the porting smooth? It looks rough.
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