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still confused about h22a swap

 
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Old 04-04-2010, 12:48 PM
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still confused about h22a swap

im thinking of getting the h22a swap for my 97 SH pretty soon and iv done alot of searching and found different ways of doing this but in the end im still confused and have questions.. alright lets start off with the h22a can both be 0bd1 or 0b2 rite so would that make a difference in the parts i need to buy or swap from my current engine to h22a being that my car is 0bd2 i mean would it make a difference if the h22a is 0b1, or 2.? here are the few ways that the swap can be done

1.that's an unnecessary amount of work.

get yourself an external coil usdm distributor off an h23 and search for bustr's wiring diagrams on here. vtech solenoid is the same. only thing different on mine was the knock sensor, it had a diff connector on the jdm version. but other people report that it's the same.


2.i'm currently doing the same thing. if u want to car to run with your current ecu, 5th gen which is obd2 you need to the h22a4 harness, obd2 dizzy, oil pump with sensor, crank position sensor along with the crank gear with a notch. for the sensor to read of. and the V-tech solenoid from a h22a4 head. using obd1 ecu is pretty much a drop in i believe. assuming u have the obd1 harness n all that stuff u pull out of a 4th gen prelude.

and this huge ****ing laundry list:

To run the JDM H22A You will need to use your stock wiring harness and ECU. Also, you will need to swap over your H22A-4 oil pump w/ crank position and TDC sensors (not hard at all). As well, you will need to run your H22A-4 distributor (again, not hard at all). You will need to use the injectors from your H22A-4 also. The JDM type S engine might require a different ECU, I can't say for sure.

Moved over the following from the old H22A4 motor:

a) Wiring Harness (OBD-II)
b) Distributor
c) Coolant Thermostat Housing
d) Oil Pump Housing
e) Crank Position Sensor and Top Dead Sensor (attached to OBD-II oil pump)
f) Exhaust header (JDM 4th Gen is different)
g) Intake manifold (if not using 5G IM, then move your fuel injectors over and get a 4G MAP sensor)
h) Knock sensor (BE VERY CAREFUL TAKING THIS OFF, THE CONNECTOR BREAKS EASILY)
i) Oil Pressure Sensor
j) Oil Pan & baffle
k) Oil Pan/Transmission Stiffener
l) Various gears from the timing belt side (crank gears especially - required for CKP/TDC sensors)
m) VTEC solenoid pressure switch (the connector seemed to be different on the H22A one?)


Onto the list of things you need to swap over:

1) The P5M (USDM H22A4) motor wiring harness.

2) The H22A4 knock sensor, usually they break, but should still be same PN

3) The H22A4 VTEC Solenoid - the connectors are different.

4) The H22A4 oil pump assembly.

5) The CKP and TDC sensors - doesn't exist on the OBD-I H22A.

6) The crankshaft pulleys... all of them. Required for the sensors in #5 to work.

7) The oil pan and baffle from the H22A4 - required to mount the stiffener and, therefore, the transmission on the 5th Gen.

8) H22A4's Distributor

9) The H22A4's Intake (The JDM H22A series is slightly different.) If you don't use the H22A4's intake, then you need to move your injectors over as they are different!

10 The H22A4's Exhaust Header


i might be over thinking this but im tired of searching and not finding a solid answer can some one please break this down by telling me the simplest way to do this swap i dont care if i have to buy a jumper harness or buy a new distributor, gas tank, steering wheel, shift knob, tire, wing, cv joint, couch, tv, or any of that bull****.. i just want the easiest way besides taking it to a shop again im sorry if im wasting your time by me being a noob/dumbass but help would be appreciated..
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Old 04-05-2010, 11:59 AM
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Re: still confused about h22a swap

dam 41 views and not one single person cmon people a little help would be nice..
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Old 04-05-2010, 02:37 PM
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Re: still confused about h22a swap

I've had my swap done by Bustr...both motor (H22a) and to 5spd!!! :top;

You're def gonna have to convert to OBD1 and switch to a H23 dizzy!!!
Bustr also switched from auto belt tensioner to manual tensioner!!! Lasts longer and a lot better!!!

I think I'm still forgetting a few things but in all honesty. Ur best bet is to hit up the Prelude DOC himself (Bustr) and ask these ques and whatnot bc a lot are curious to check your thread but havent had the oppurtunity like Bustr to do swaps!!!

Bustr speaks from exp and that's where you should start IMO!!!

G-luck man!!
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Old 04-05-2010, 03:19 PM
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Re: still confused about h22a swap

if it's a type s or the usdm SH motor it should be a direct swap. From what i've read if it's the other h22a (base model) you'll need the base tranny and base axels. Everything else should work the same.
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Old 04-05-2010, 08:03 PM
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Re: still confused about h22a swap

Quote:
Originally Posted by Psychochimp View Post
I've had my swap done by Bustr...both motor (H22a) and to 5spd!!! :top;

You're def gonna have to convert to OBD1 and switch to a H23 dizzy!!!
Bustr also switched from auto belt tensioner to manual tensioner!!! Lasts longer and a lot better!!!

I think I'm still forgetting a few things but in all honesty. Ur best bet is to hit up the Prelude DOC himself (Bustr) and ask these ques and whatnot bc a lot are curious to check your thread but havent had the oppurtunity like Bustr to do swaps!!!

Bustr speaks from exp and that's where you should start IMO!!!

G-luck man!!
thank you that is a huge step in the rite direction ill hit em up and see if he can help me.. thanks again
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Old 04-05-2010, 08:13 PM
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Re: still confused about h22a swap

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Originally Posted by gchampaninh View Post
if it's a type s or the usdm SH motor it should be a direct swap. From what i've read if it's the other h22a (base model) you'll need the base tranny and base axels. Everything else should work the same.
I should have been more specific when i wrote H22a.. but i was aiming for the JDM Type S H22a because yeah i did read something about only the type s motor fuses with the type SH tranny.. so the type s in japan also uses the exact same block and ATTS.?
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Old 04-07-2010, 07:17 PM
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Re: still confused about h22a swap

I swapped my 5th gen, h22a4 to a 4th gen jdm h22a.
OBDII to OBDI Harrness from kingsmotorsports.com
P5m ecu to P13 ecu
Used same distributor from h22a4 5th gen on h22a 4th gen.
Trans bolted up, I think I had to use 5th gen oil pan.
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Old 04-07-2010, 11:20 PM
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Re: still confused about h22a swap

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Originally Posted by brucedub810 View Post
I swapped my 5th gen, h22a4 to a 4th gen jdm h22a.
OBDII to OBDI Harrness from kingsmotorsports.com
P5m ecu to P13 ecu
Used same distributor from h22a4 5th gen on h22a 4th gen.
Trans bolted up, I think I had to use 5th gen oil pan.
do you have base model or SH.? ok the 4th gen 0bd1 jdm h22a is the 200 hp engine rite.? i thought the sensors were different on the 4th gen h22a because they are 0bd1 sensors and will not plug up to the 0bd2 engine harnes.? thats why people go through all sensor swapping crap..
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Old 04-08-2010, 02:29 PM
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Re: still confused about h22a swap

Quote:
Originally Posted by DEFTONES View Post
I should have been more specific when i wrote H22a.. but i was aiming for the JDM Type S H22a because yeah i did read something about only the type s motor fuses with the type SH tranny.. so the type s in japan also uses the exact same block and ATTS.?

Yes since the Type S comes with ATTS. As much as I love ATTS i'm ready to part ways with it just to get an F20B and probably LSD much later. So go ahead and get the type s it should be a straight drop in.
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Old 04-08-2010, 10:42 PM
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Re: still confused about h22a swap

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Originally Posted by gchampaninh View Post
Yes since the Type S comes with ATTS. As much as I love ATTS i'm ready to part ways with it just to get an F20B and probably LSD much later. So go ahead and get the type s it should be a straight drop in.
hmmm... ok il go for it hopefuly i wont run into any wiring problems my brother works at clear lake Honda so everything i do to my car is done in the main shop but has to be finished the same day so a problem wouldnt be good
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