well im goin to be walkin through a junk yard lookin for a A1 head with that said can i use my obd2 harness without having to use a ecu for the A1 head? can i use my distributor? i think i will need a A1 intake so will i be able to use the injectors i already have on the obd2 harness? what would you use OE honda gasket or a parts house special? it has a f22b2 in it now. thank you for your time!

 

bump need some help and dont want to buy another f22b2 head unless i have to

 

putting an a1 head on the b2 block would be a bed combination to get since its airflow isnt as good and it is obd1, it would be downgrading. what are you trying to accomplish by this?.. if you dont like the b2 head get the b1 head and computer, since its already obd2 all u would have to do is run a wire for the vtec. pretty easy conversion and you would keep the 8.8:1 cr and rid yourself of having to tune the ecu

 

Wow!







A1 head flows just as well as the B2 head. Even better if you do a little bit of exhaust port work. Using the OBD1 head on the OBD2 block doesn't make any difference. the sensors all swap over. You will need the F22A intake manifold and exhaust manifold though. You can run the OBD1 head on an OBD2 block & ECU without any issues or tuning requirements.

and the PT3 head is definitely not a downgrade! The B2 head has 32mm intake valves and 29mm exhaust. Where the PT3 (F22A1-6) has 34mm intake and 29mm exhaust. Compression with the A1 head will still be 8.8:1 as well... no change there!

The B1 head would be a downgrade IMO though. It is a complete waste of time and money.

 

Just run the f22b2 ecu. The f22a head flows the best out of all the f22 heads. Try to find a f22a6 head, It has a more aggressive cam and stronger valve springs. You will need the f22a intake and the a6 is the better intake but you can also run a h23 intake manifold with the f22a head and it will add the most power. You will also need the f22a exhaust manifold. Just reuse your f22b2 dizzy and harness and injectors
A f22 ecu is a f22 ecu no matter if its off a f22a or f22b2. I am running a f22b2 off a pt3 and it runs very good.

 

powder blue...i mean somthing like a h22 ecu or somthing chip able?

 

Your stock ECU will work fine. No a h22 ecu wont work even chipped.

 

so there is not a obd1 ecu that can be tuned or chipped and will run a f22? hmm

 

Your stock OBD2 ECU will work.

However, if you want to be able to tune. You need a conversion harness and then find yourself a 92-95 Civic or Integra P06/P28/P30/P72/P75 ECU and chip it. None of the Accord or Prelude OBD1 ECU's are at the same point in chipping and tuning as the Civic/Teg ones are.

There is a guy working on chipping and tuning OBD1 Accord and Lude ECU's but he has not released anything as of yet.

 

you can run a h22 ecu i got my 92 with 1 but it is faster with the stock ecu.

 

Shut the **** up. No you cant, not properly. You can plug any any obd1 ecu in and get the car to drive down the rode but that does not mean its running right and is not going to damage the engine

 

You can use f22 ecu in h22 engine but not the other way around cause it will be throwing codes and going into limp mode.

 

No you CANT

 

Yes you can. It just won't run optimally, and obviously you won't have vtec.

 

Now now children, why argue just for the sake of arguing! Everyone knows that it is always optimal to run the ECU designed for the engine you are running. However in some instances substitutes can be used for a short time. Case in point, a Non VTEC F22 ECU will run an H22. Obviously the ignition timing and fuel will be off and it is not the opportune computer for it.

 

And that can damage the engine.

 

it will run fine but rich and slower and Thepowderblue watch how u talk to people im not no young kid im trying to help and u want to b a dick wen u don't even no what u r talking about.