91 Accord Ex build...

[hondadaddy]

Ok, I pick up the f23b1 tomorrow and will get the ecu out of the car as well. Thanks

[deevergote]

F22B1 or F23A1?

Are you sure you're going to be able to do this swap? You don't even seem to know what engine you're picking up...

[hondadaddy]

F22B1 or F23A1?

Are you sure you're going to be able to do this swap? You don't even seem to know what engine you're picking up...

What do you mean? I currently have a f22a4 engine in my car, that's giving me problems. I'm picking up a f23b1 vtec. I'm not sure where f23a1 came into play...I'm very mechanically inclined; I worked on cars for about 8yrs with my uncle. If I tear it down I can put it back together. I haven't tried and engine swap before so that's why I have so many question

[deevergote]

There is no such thing as an F23B1.

[hondadaddy]

Ok I'm a a** you're right I'm sorry its a f22b1

[hondadaddy]

Too many damn letters and numbers...the f22b1 is obd1 correct? And should be a plug and play swap except for the vtec?

[deevergote]

Look for a DIY thread by DarkCloud on how to install the F22B1.

If it's from 94 or 95, it's OBD1. If it's 96-97, it'll be OBD2, and you'll need the OBD1 parts to make it work.

[hondadaddy]

I just finished reading it...I didn't understand the part about the ecu. He mentioned "ECU'S that can be used are POA which is from 94-97 accords not worth b'cuz vtec is not noticable." What does that mean? If I pull the ecu from the donor car it won't recognize the vtec in my car?

[deevergote]

Ignore that. I should probably edit that out, because it's bad advice.

Use the P0A ECU from a 94-95 Accord EX (the proper OBD1 F22B1 ECU)

[hondadaddy]

Ok, have you read the thread by Acclude91? Darkcloud made the swap sound a lot easier. which should I follow?

There are questions now about exhaust. Can I use the a4's exhaust manifold if there is a question of clearance?

[deevergote]

DarkCloud basically wrote his based on Acclude91's thread. He made it because Acclude91's thread no longer has pictures.

I'm not sure about the exhaust clearance. I have never, and would never, put a F22B1 into my car.

[hondadaddy]

Gotcha, thanks for the help. I'll spend the week replacing seals, gaskets, and changing belts. Hopefully I'll be ready in the next two weeks to put it in. Thanks again.

[hondadaddy]

one last thing what does "NA" mean? I see it in the performance sections

[HondaFan81]

If you want simplicity, I would get the 94-97 Accord EX 4cyl motor (F22b1), assuming the block is in good condition. I'd only use the block and send your current F22ax head for reconditioning, slap it on. I'd replace any necessary external engine seals and do timing belt/water pump job and be done. This can retain your stock engine management system because you have essentially built another F22ax engine. The F22bx blocks are same as F22ax.

If you're willing to put a little more effort for some performance increase, get the F23 block, if in good condition. Use that block and recondition your F22ax head, slap it on. This will give you more static compression and slightly more stroke. Basically, it will be a torquey motor for a 4 cylinder. This will require a chipped ECU with dyno tuning, so you may as well throw in a slightly more performance-oriented camshaft to get more of a bang for the buck, since you have to get tuned anyways.

Either route, keep in mind you will have to invest more than just the initial purchase of a replacement block to do the job right and have it last you. Otherwise, don't even start the job if you intend to half-a$$ it. You're better off having a professional do an entire rebuilt motor replacement, swap a full good used engine replacement or just get another car.

[HondaFan81]

NA means naturally-aspirated or another term for all-motor.