Alright guys, I've searched and searched, and searched. All I've been able to find is Understeer, handling, Who Make Mount kits, I've heard its a hard swap, I've heard, My fiend, My friends cousin in Cali, and so on. I need technical info, so please if you don't have technical info to HELP me with the project please don't respond. Sorry to start off harsh, but I don't need people's opinions, I just want to get this done.

Now the stock D15 in my 91 EF SEDAN (auto), decided to to take a **** on me. I wasn't intending to turn my Sedan into a racer or do a serious swap. But stranger things happen. I'm no stranger to swapped Civics and CRXs, I had a B18A CRX Si, and had it up until last summer (had to sell due to baby). So I know what Swapped EFs are capable of, and Love helping friends out with their swaps. Now All my friends who do swaps like to blow their engines up before swapping, and the local salvage yard wants $350 for a D15 out of a 93 CX, so there goes the idea of a stock replacement. No I like to mess with everything, so if the opprotunity presents itself, I can change my mind. Now a friend of mine just swapped his 92-93 (H23) Prelude AUTOMATIC, for a H22a with Manual.
Now this is where I need the Technical info. Now I've heard most (ALL) people who do the H22-H23 swap go with a Manual Tranny setup, whether its in an EF or the newer Civics. Now I'm as different, as different can be, and try to strive to be outside the box. My EF is an AUTOMATIC, and if I were to swap an H23 in, I could deal with the Auto Tranny. Would also really help with the Sleeper approach. Now the question is I know of mount kits and all, but I've never heard of anyone swapping an H-series with an Auto Tranny. Now the Tranny itself LOOKS to be Bigger than the Manual. so would it (auto tranny setup) fit in an EF Engine Bay? Now I've seen pics where some have to cut out some material on the tranny side on the bay. Now I and my friends are pretty good fabricaters so we can deal. Now we are pretty much in the planning stages right know Trying to figure out what we'll all need as far as parts, and what will all need to be done to prep the Bay, and car for the swap. Any related info and references, websites would be greatly appreciated. Thanks.

 

Hey-You'd prob be better off (if u don't mind performance loss) if u go with an auto tranny, because then u don't have to figure out what ur gonna do about the clutch. If u have some questions get at me cause I did a little somethin like that without mount kits, wire kits, etc.

 

Well....i dont have any exact info on the swap but I will point out some things I know

1)the b16a with an auto tranny doesnt fit in to an ED(cause its bigger) so getting the bigger h series auto trans in there is gonna be harder than a standard h22/manual swap...youll be cutting up the engine bay regardless so im sure youll find a way to make it fit

2) auto trannys usually mount differently than their manual counterparts...so any mount kit is out the window

3) I know b series trannys use a computer for the automatic tranny....look in to this for the H series(im not sure if it uses a computer for it or not) if it does use a computer have fun with the wiring

4)anything is possible with money

(editorial part: yes youll have more torque with this engine and its almost free to you probably, but with the time, money etc youll use to make it work in your car a b16 swap would be cheaper and easier.....)




[Modified by crxgurlllll, 8:12 AM 2/17/2003]

 

Toxic,

Hopefully I can shed some light upon your situation of going h series auto into an EF style chassis. I personally have worked on one. As far as the tranny size, you are correct, it is physically larger than a manual tranny and weighs numerous pounds more. The tranny side rail will need to trimmed and I would advise reinforcing the mounting point heavily. As far as swapping the motor in, we actually had to install the tranny, block, and head seperately. As far as wiring goes, we used a complete Prelude wire harness. Some issues to note are the throttle body, which has to be from an automatic. We tried using a manual throttle body and the ECU went crazy. In addition, we have had problems with the car shifting, using various ecu's. The prelude stock automatic Ecu should be used. I believe this should give you a good start on your endeavor. It is deffinetely a challenge compared to fitting in a B series!!

 

Get the sawzall and sledge ready! (another ignorant efwhore reply)

 

Thanks for all the info guys, I'm still trying to see how deep I'm willing to het myself into! We'll see!

 

i had an automatic sedan at one time and was looking into getting an auto bseries swap, and like someone said above, they said the bseries auto wouldn't fit. so i could only imagine how big the auto hseries tranny would be.

but good luck and i hope you can get it going, because it sounds like one hell of a project