Bense's H23A Swap HowTo & Discussion Thread.

I know this is an old post but did you ever find out what was the problem


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The original socketed ECU that I had was from my Civic, which had been parked for just over 4 years after I got in an accident and did some front end damage to the vehicle. It was in a very moist/damp area on the edge of my father's property, and the PCB of the ECU I was using was covered in mold.

The ECU worked for maybe ~20 minutes. I purchased a 'new' socketed OBD1 ECU from eBay and it resolved everything.

 

Apparently google doesn't let us embed images anymore, so I've gotta figure out a way to post/host pictures now.

Annoying as crap.

 

https://postimage.org/

Upload. Copy direct url into [img*] inserturlhere [/im*g] minus the asterisks.

 

I've been planning and scheduling to take the Accord 'offline' so that I can address some outstanding issues. The entire engine/trans has been running strong for over over 2 years now. (I'd have to go back and check the mileage of the old cluster before I swapped it out).

Issues to address:
* Transmission synchros are wearing.
* Seals are leaking (rear main, and possibly some of the transmission seals) -- I go through about 1-2 quarts a week.
* Clutch is starting to slip when I beat on it.

Trans:
* New synchros
* Dual synchro 1st gear
* Either swapping in the H23A1 5th, or modifying trans to use B16 5th with B16 5/R fork
* New input shaft bearing/seal
* New Axle seals

Other Parts to Upgrade/Swap out:
* Accord Type R Intake Manifold. (Just like the one I did the write-up for nearly 10 years ago.)
* New sensors on the intake manifold
* A Throttlebody pulley that has the channel for the cruise control cable!!
* Rear main seal
* Clutchmasters aluminum flywheel (Scored this for $45 used, not sure if I'm going to use it)
* New clutch/pressure plate

Transmission Recap: (easier explained if I make a table)
Original F23A1 (P2A8) transmission
1st = 3.2857 (46/14) - Type R (Same ratio, but dual synchro) - new brass synchros
2nd = 1.8077 (47/26) - Original F23
3rd = 1.3200 (33/25) - M2S4 (92-96 prelude Si H23A1)
4th = 1.0344 (30/29) - M2S4 (92-96 prelude Si H23A1)
5th = 0.8484 (28/33) - B16/ITR ** Requires modification
Fnl = 4.2666 (64/15) - M2S4 (92-96 prelude Si H23A1)

Trying to find an LSD for cheap...

Some pics...

Ridiculously Over-engineered Honda gear ratio concoctions. (I needed something to stay busy with in between interviews while I was unemployed.)
I'll share this spreadsheet that I have over 500 hours invested in with anyone that wants to pay off my student loan debt.


Neodymium magnets recycled from old harddrives as 'upgraded' transmission magnet


Found my box of leftover synchros from previous trans builds.


Removing Unneeded Hose Barb from Accord Type R Intake Manifold


Accord Type R Intake Manifold Posing in the Sun

 

Image links fixed.

 

Apparently imgur has issues with hotlinking.

 

As per....
https://www.6thgenaccord.com/forums/threads/how-do-i-send-a-user-a-pm.54327/#post-1118272