YES!! the F22B DOHC Head will fit on the F22AX Block..PERFECTLY!!

[deevergote]

Alright then, sweet

Does anyone have any arguments for or against the setup I suggested? I don't want to simply burn chips, but rather tune the ECU on the fly.

And Zigen, I guess I would need to fiddle with an SAFC to appreciate it. If I could find one for under $100, I would probably grab it. Still, for $250 and a little help from my friends here on the board I could possibly build my standalone system (no Hondata, but for the money I believe it's more in depth than a magic box.)

[too.slow.CB7]

PM me if anyone has any idea where i can buy a F22B head to go on my F22A1 block.......-justin-

[HondaFan81]

H23 cams would fit in this F22b dohc non-vtec head, correct? I am pretty sure on this, need confirmation.

[J-specCb4]

they should because from what i am told they are identical other than the fact that they came off of different blocks. i got an h23 head and a f22b ecu and i hope when its done it works out well


uhhhhh got a lil smiley happy sorry

[J-specCb4]

h/f series hybrid in progress crew member #1

[TheTempest]

awesome work guys so far

Well, i have an F22a4 stock 91' AccordEX with 94,XXX miles on it.

I was wondering about much HP/TQ increase we are talking here with the F22B DOHC head. As well as what else would need to be purchaced to make this work corretly, and efficently.

I also had a question about ECU's... as i've been reading you guys are cranking these engines well above 6.3 which is my redline...is this because of the F22B DOHC head?

Also, i know DOHC stands for Duel Over Head Cam...but, as far as mechanicly speaking, how does this help the F22A4 SOHC?

Thanks, i'd love to try this mod because i dont have the 3grand to do the H22A swap

[pwrusr]

Thanks, i'd love to try this mod because i dont have the 3grand to do the H22A swap

You don't need $3k to get a H22. They are about $1500ish for pretty much everything you'll need.

[NoSloCB7]

Well the F22B is rated around 160 Hp and like 145 ft-lbs. I would recommend swapping the IM to either the F22A6 Dual Runner or H23 IM. After that, I would use an aftermarket header,and an ECU change....As far as the advantages of going to DOHC....you get the added tunability of DOHC via individual cam timing.....

[TheTempest]

well thanks for the input...so your saying that pretty much for the ECU and F22B Head you can get an extra 25HP and some torque?

Oh, btw, i have the F22A4 already So i think i'd just need the F22B head, unless i'm missing something.

Thanks

[ZigenBallZ]

I would recommend swapping the IM to either the F22A6 Dual Runner or H23 IM......

ummmm... Why? the F22B manifold has the exact same stampings as the H23A1 manifold...

P14 lower & P13 upper...

[NoSloCB7]

What? I told dude to switch from the single runner on his F22A4 to a dual runner from either the F22A6 or the H23. The H23 is better than the F22A6 becasue it has a larger plenum....

[HondaFan81]

well thanks for the input...so your saying that pretty much for the ECU and F22B Head you can get an extra 25HP and some torque?

Oh, btw, i have the F22A4 already So i think i'd just need the F22B head, unless i'm missing something.

Thanks

If your taking FushigiRES's advice...your F22a4 has a single runner intake manifold and he suggested to use a F22a6 or H23a1 intake manifold.

A side note, how difficult is it to get just a F22b head without buying the whole engine? That's the only downside to this I see, locating one...unless it just falls on your lap cuz somebody happened to be scrapin one, etc.

Also, would a F20b dohc non-vtec head work on a F22ax block as well?

If the F20b and F22b heads both work on a F22ax block, then which flows better (i.e. low, mid, high end).

[ZigenBallZ]

What? I told dude to switch from the single runner on his F22A4 to a dual runner from either the F22A6 or the H23. The H23 is better than the F22A6 becasue it has a larger plenum....

Shit man... Sorry... you are right... that's what i get for skimming thru the thread while trying to surf on the sly at work on only 3 hours of sleep... sorry bro...

and not to mention being distracted by the wily ways of a cute 19 yo blondie...

[NoSloCB7]

LOL..Its all good...I still got love for the Zigen....

[TheTempest]

FushigiRES, have you had a chance to check hp/tq after doing this mod?

Also, i just read the F22a6 swap FAQ and i'm thinking about doing the F22A6 IM swap as well as getting the F22B and the A6 ECU. So i guess what i'm asking is: about how much HP/TQ are we looking at here after it's all said and done. I know you said that the F22B was rated around 160 Hp and like 145 ft-lbs, but does that mean that running the F22A4 Engine, with the A6 IM and the A6 ECU and the F22B head that i will be able to get numbers very close to 160 HP?