jweeks

I'm converting my 5g with a chipped p28, any info on what basemap to run

jweeks

Blue top oem injectors and tb, ckp tdc coming from the distributor

EJ8Bramaged

Ordering the P28 this week. Currently the engine is still running off the stock H22A4 ECU and it's quite rich. Still trying to find what wires need to be ran to "plug-n-play"

Camilo Prelude

Ok so I want to swap my h22a to a h23 bluetop. How do you convert it to obd1 and what will I need to purchase other than the engine it's self for the swap? Plz and thanx

niatsi

I have done the swap to in my lude but from a f20a4 to h23a vtec things that i have done:
* I used the JDM h23a vtec fuel rail and i made a custom fuel feeding line or you can swap the fuel rail from your h22 than the line is long enough if the injectors from your h22 are 340 cc use them.
* OBD1 Distributor.
* p06 ecu chipped to p28 with h23a vtec basemap for few weeks after that i got it tuned. Don't drive with a basemap for a longtime because it have to be tweaked for your parts and can damage your engine in the worst scenario.

I forgot a few things maybe you cloud ask me when you come up with anything.

THC07

do you need a basemap? Ive got a nice one for the h23vtec. It wont be great above 7k. seems pretty solid around 13.7ish-14.5ish afr

EJ8Bramaged

Parts needed for the 5th gen H22A4 to H23A Blue Top:
Things to buy:
Chipped P28 & OBDII - OBDI conversion harness
H22 Timing Belt & Balance Belt
Manual Belt Tensioner from 92-96 H23 NON VTEC
Gaskets - oil pan, valve cover, dizzy orings, rear main, thermostat housing & thermostat oring

Swap parts from H22A4:
Oil Pump
Oil Pan
Oil Pickup
Upper Intake Plenum
Motor Mounts
Wiring Harness
Alternator, P/S, A/C
Distributor

Just did this a couple weeks ago. I'm sure I'm still leaving some things out

niatsi

You cant use a h22a4 oil pan because the h23 has a longer stroke so your crankshaft will hit the oil pan if u want u change the oil pan i dont know why???????????? then use the f23 one thats the one that will fit it.
i didnt change my oil pan oil pump and my oil pick up and im driving it like that for a year now. If you want to rev it higher you can use the oil squirters and if you want to do it save get your crankshaft balanced new bearings

EJ8Bramaged

Well, the flimzy pan that comes on the H23A is easy to crush, so it was changed out. NO IT WILL NOT HIT WITH THE CRANKSHAFT. Fits fine once you change over the oil pick up as well. No issues with it. Car has been running issue free for about 3-4 weeks now on the stock H22A4 ECU. Chipped P28 gets here today. Tuning tomorrow.