Bense's H23A Swap HowTo & Discussion Thread.

TedMicer

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Currently.

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Civic radiator for temporary use because I'm impatient.

Last night when I test drove it, I took it up to 6200RPM and it lost all power and I struggled to make it home.

I'm going to go test the ignition coil, ignitor, and other components of that distributor, and install the replacement radiator that came in today.



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


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Bense

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

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.
 

Bense

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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.
 

Bense

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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.
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Neodymium magnets recycled from old harddrives as 'upgraded' transmission magnet
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Found my box of leftover synchros from previous trans builds.
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Removing Unneeded Hose Barb from Accord Type R Intake Manifold
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Accord Type R Intake Manifold Posing in the Sun
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