Hi guys Iam working on a new dd I just got it's has a stock f22b1 with an auto and Iam thinking of buying an f20b bluetop motor with the auto ecu will it work on my car and if so what are the requirements.And no manual is not an option since my wife will be driving it and I have a back injury.Any recommendations,links,ideas,or people you may know that can help me out will be appreciated.The work will be done by a mechanic because I can't do it.I want to have an idea of cost aswell.Thanks in advance.

 

Is your mechanic well versed in Honda engine swaps? if he is, then he would be the one to go to for an actual parts list and price quote. If he isn't, then I would shop around for one who is!

There are a number of build treads for the F20B/H22A DOHC engine swaps here. Not sure if the FAQ still has a swap guide or not. That would be another place to look through for reference material.

That slush box that you have in the car now may not be as desirable as one with a set of shorter gears. I would say that you might be happier with one from an F20B or B series. Will take a bit more work but well worth it in the end, for performance and fuel economy! Honda does a pretty good job mating the engine to the appropriate trans for both.

 

Iam not to sure the newer trans fits the CD5 I have plus that would most likely require to change more of the wiring harness I know the auto is not the best option but f20b has enough grunt to make it a faster car plus Iam planning on keeping the car for the next few years. I'll be talking to another mechanic that I found about rebuilding the auto.I did find a jumper harness that let's me keep the tcu for the auto and let's me add chipped ecu.

 

If not I'll boost the a jdm f22b vetch.

 

Its not a matter of auto vs manual, it's more a matter of the gearing in your current automatic trans. If you can get a TCU with the appropriate shift points for using an F20B with a CD5 trans, it will work. Just won't be as ideal as using an F20B, shorter geared, trans. Yes, these engines came in an Accord chassis, so they will drop right in as a complete unit, engine and trans.

Boost is a very good option for these engines. Best investment on a boosted F22B1/2, aside from a good tune, is to replace the stock pistons with something aftermarket!

 

Yeah that would be good but for now I just want to get it rolling I have two other project that Iam working on that I stop to finish this one seems to be the cheapest and I mean it loosely.I'll talk to my guy and the mechanic that Iam thinking of going with.I'll post what I find thousands of Honda guys think better then one.Thanks

 

IIRC the F20B was only used in the later CF/CL cars which also used the M6HA AT. This is not a compatible swap in an attempt to maintain the 90-97 H4A as the PCM will not be able to control the H4A. The throttle body also requires an attachment to connect the throttle valve cable found on the H4A trans. At best you could limp the F20B using the B1s TB and ECU to run the engine, but I would think the timing tables and VTEC actuation would be all wrong.

A tuner might be able to burn a chip for the B1 ECU to update fuel/timing/VTEC tables, but it would require more money than a simple swap and go project.

IMO, if you want to improve the acceleration of your car, change out the trans to one with lower gear ratios. 'MPJA' Odyssey transmissions really improve the acceleration of the B1.

 

Would I have to change the tcu for that today I talk to my installer he said it was going to be alot of work.He recommended the f23a1 just swap everything over from my f22b1.That there shouldn't be any problems smogging the car because it's a replacement motor.Iam calling a B.A.R referee to get as much info about I also found the trans and motor F22B1 with 50 thousand 600 the pair.

 

Going Auto always makes things more difficult. I'm pretty sure the F20Bs are all OBD2. Generally I would personally suggest going OBD1 and using a chipped p28 but I think you would run into problems getting a decent program and still auto. Generally when you get the ECU chipped they change it to Manual without even asking. Installing an OBD2 ECU would require quite a bit of extra wiring.


What are you looking to gain with the F23A1? I believe that's an OBD2 engine as well. I'm sure you could run that with the f22b1 ecu but I don't think it would be optimal. You will need to get the Rosko IACV adapter as well to use the 2 wire IACV. If you are sticking with auto you might as well stick with the F22b1, you wont gain much with the f23. Even if you stick with F22b1 and start doing I/H/E you will hit a point where the stock ECU will start to hold you back.


I don't know if there any good tuning options with auto, I read some stuff about using a p75 but I doubt that would be a viable option. I think you would need to go with stand alone fuel management, something like an AEM.


It would be cheaper to stick with a stock automatic Daily driver and a Manual car for modding/racing/fun.


I have a F22b1 sitting in my garage I will let go cheap if you are in Southern California, no transmission tho. I have the F23 intake manifold and Rosko adapter as well.

 

My goal was trying to get some of that v8 auto kick in the pants.I've owned a couple.I found a seller in El Monte he wants 550 for the f22b1 and 250 for the trans 450 install all fluids included.was trying to get the block from jdm engine pro but no go no trans or motor.I might sell my Tacoma and get another Honda.Oh well.If you guys see a trans and motor being sold in Anaheim for an accord you'll know who it is.