BIG T

i was just wondering if f22's are ok for boost considering they have low compression. Or are their cylinder walls extremely thin or something??
Is there anything else that i need to know about them before i turbo??

1cpu

theres a f22 turbo thread that should give u all ur info

redzcstandardhatch

yeah they are fine....no detonation (with a good tune), and a decent kit, and they make great power.

twkdCD595

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redzcstandardhatch &raquo;</TD></TR><TR><TD CLASS="quote">yeah they are fine....no detonation (with a good tune), and a decent kit, and they make great power.

</TD></TR></TABLE>

x2.

f22's react pretty well to moderate amounts of boost from my experience as well. lower compression, oe sleeves are iron, etc... just need to make sure to use quality fuel management and have it tuned.

the only downfall of the f22 IMO is the typical oe honda pistons/ weak ring landings can or will crack from detonation at almost any power level (hence why good tuning is so important)... that said, you would be very pleased/ suprised at how well the f performs boosted.

raceACCORDingly

stock low CR, iron liner sleeves, 2.2L FTW!

F22a heads flow decently from what ive read, f22bx are a diff story.

redzcstandardhatch

f22a1 heads are incredible. best honda head i've ever seen.

on 11-12 psi i'm making somewhere near 350-400 whp, and similar torque (judging by what others have done, and my injector duty cycle, maxing 700 cc's). bottom end is stock, head has springs and a cam (both bisimoto)

fast93accord

I have a turbo F22a. It F-N flies on low boost 12-15psi on the street. I went 12.5 on 15psi a bad 60foot and misfiring... Like stated the OEM pistons are junk...and will break...

twkdCD595

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raceACCORDingly &raquo;</TD></TR><TR><TD CLASS="quote">stock low CR, iron liner sleeves, 2.2L FTW!

F22a heads flow decently from what ive read, f22bx are a diff story.</TD></TR></TABLE>

From what I know, the f22a6 head is the specific head to which you refer with the big flow numbers everyone drools over, but the other 2 f22a (a1/ a4) heads are nothing special... from what I have seen.

Same with the f22b1 head... it flows quite well (better than people think) but the f22b2 head is nothing special.

redzcstandardhatch

i'm really impressed with the head on my f22a1 ..way better than the f22b2 i saw

twkdCD595

I dont want to get someone elses thread off track but I would be curious to know what specifically impressed you and in what way the a1 seemed better to you?... it is hard to find information so I try to collect as much as possible from any sources I can so if you can direct me to any I would greatly appreciate it.

Though as I stated above the b2 head specifically is nothing special and I am not impressed with it... the b1 head is much better from the information I have seen and my personal experience with both.


Modified by twkdCD595 at 4:39 PM 8/7/2007

redzcstandardhatch

well, i'll try to get some pictures, but mainly, the ports are huge and seem really idealy shaped (intake mainly, exhaust isnt bad, but nothing too out of the ordinary for honda)

the intakes are absolutly amazing from the factory... more-so than any other factory head i've worked with (of any manufacturer)..

i'd love to see the b1 head next to the a1..i bet they are very similar

BIG T

how is the F22B the dual cam motor

BIG T

BUMP

raceACCORDingly

what is different about the f22a6 compared to the f22a1/2 heads? aside from the butterfly?


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BIG T &raquo;</TD></TR><TR><TD CLASS="quote">how is the F22B the dual cam motor</TD></TR></TABLE>

if you put an h23 head on f22 block, you basically have a jdm f22b dohc motor.

BIG T

this doesn't answer my question??

redzcstandardhatch

what is your question? "how is it?"

its fine.

singlehead

h22 head+turbo=bad a$$ f22

91accordexr33

JDM F22B's are good motors. Lil pricer to find and have slightly higher copression (i think 9.0:1)

Im runnin a f22a4 @ 10psi for 2 years with no problems. on a 16g im guessin im makin about 220-240 wheel

d112crzy

F22B DOHC has a cr of 9.2.

F22B2 head flow numbers
http://www.accordinglydone.com...14075

F22A1 head(borrowed from HondaFan81 on cb7tuner.com)

raceACCORDingly

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BIG T &raquo;</TD></TR><TR><TD CLASS="quote">this doesn't answer my question??</TD></TR></TABLE>

its basically an h23 with a tad lower CR, smaller bore, less torque, same hp.

raceACCORDingly

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d112crzy &raquo;</TD></TR><TR><TD CLASS="quote">F22B DOHC has a cr of 9.2.

F22B2 head flow numbers
http://www.accordinglydone.com...14075

F22A1 head(borrowed from HondaFan81 on cb7tuner.com)
</TD></TR></TABLE>

wow thats pretty big diff on the intake side. but the b2 exhaust ports flow better?.. wow

wonder if theres much a of a diff between the f22b1 and b2 head flow

twkdCD595

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

wow thats pretty big diff on the intake side. but the b2 exhaust ports flow better?.. wow

wonder if theres much a of a diff between the f22b1 and b2 head flow</TD></TR></TABLE>

I have yet to see any good comparison of flow numbers between the b1/b2 heads, but as you say I would be interested to see how the b1 numbers would play into this. The b1 head will most definately outflow the b2 since the b1 has larger valves but I am curious by how much.

also I have yet to see the a1, a4, and a6 heads flowed and compared side by side... anyone wanna loan me a flow bench for a few days.


Modified by twkdCD595 at 3:08 PM 8/10/2007

keoni96764

well if your still wondering from what i heard the a6 has a little better cam but thats it head wise and the intake mani is better.