Difference Between JDM H22a's

[blizzard335]

Arent they all similar? Im not too sure tho.

havent compared them.

BTW, Ive edited the title. Gain more 'exposure'

[blizzard335]

wouldnt the euro and other imported motors from like australia and other places than japan have like an odd number? i know a couple of people up here have stamps that read f22a3 or a9 but they live in malaysia or something like that.

that im not too sure of.

For Malaysia, only recently have the engine numbers been 'standardised'

Before this, the F20 mas MA20, the F22 was MA22.

When the 6th gens were introduced, then it was F20Bx and F23ax/bx. Tho which F23, im not too sure. could be either F23a or F23b.

Coz from what Ive been reading across the board, and like what d112crzy said, most dont really know what origin the engine came from. Could be Prelude or Accord.

Because, it would be surprising if you dyno'd an Accord H22a, but hoping for it to sneeze out 200PS.

Here, even the Accord and Prelude front clips are priced differently.

[NAiL05]

The 5th gen Accord SiR had the h22a. I dunno try asking around 5th gen forums? They should know.

[blizzard335]

The 5th gen Accord SiR had the h22a. I dunno try asking around 5th gen forums? They should know.

Hm..

perhaps.

thanx.

CD5tuner, here i come

[NAiL05]

lol do they not have any overseas? You guys should know!!! Your closer to jdm land hahaha. But maybe with cd5tuner you might find something.

[blizzard335]

lol do they not have any overseas? You guys should know!!! Your closer to jdm land hahaha. But maybe with cd5tuner you might find something.

LOL

we do have both engines here, in halfcut form that is. Never had the CD6 as an official import. there were a few, but rare.

Infact, an Accord H22a may have similar engine numbers to a Prelude h22a, eg:

H22a 2xxxxx can come from either a CD6 or a Bb4.

but once its taken out from the body, who can tell? any other differences?

TB? IM? cams? (i doubt)

only way to know is by the PXX ecu.

the CD6 having the P0F and the BB1/4 having the P13.

but, what if the engine didnt come with an ECU?

questions, questions questions.

[The G-Man]

If the only way the engine differed was the ECU. Anybody in America hooking a P13 up to a H22A would effectively have the same numbers as the BB4, correct? Then chipping and tuning would negate this difference even more.

Only way to surely know:
Halfcut H22A Accord
Halfcut H22A Prelude

Take each motor apart piece by piece and measure.

But who has the resources for that?

[blackcb7]

this link might be a little help ful
http://en.wikipedia.org/wiki/Honda_H_engine

my swap came with the p0f ecu leading me to belive it was from an accord, the link proved me right. never knew it only had the 190ps. i did notice from the beginning that the throttle body was smaller as well as the ecu.I am already running a p13 and a bigger throttle body and manifold are on their way onto the engine

I believe that to be the only difference from the regular prelude h22

[The G-Man]

This seems to be almost like this:

If an H22A came out of an Accord and nobody is around to see it, did it really come out of the Accord?

[blackcb7]

This seems to be almost like this:

If an H22A came out of an Accord and nobody is around to see it, did it really come out of the Accord?

the person that took it out saw it

[koolkoreanked]

The accord and prelude have different power steering pumps if I'm not mistaken.
And check the year it was made. Before 94 I dont think honda put any h22s in accords... So if its made prior to 94 its got to be out of the prelude.

[blizzard335]

The accord and prelude have different power steering pumps if I'm not mistaken.
And check the year it was made. Before 94 I dont think honda put any h22s in accords... So if its made prior to 94 its got to be out of the prelude.

Ah.. year stamp.

Say that two h22a's were both made in 1995

one is for the CD6, the other for the BB4.

how?

so, the main differences are:
1) TB
2) PS Pump
3) ECU

any others?

[NAiL05]

Yep 94-95 was the first year they came out and I heard they changed it for the 96-97 model years. But dont quote me on that. Mines a 94 =P.

[trah]

My h22 came from a JDM BB4. REason that I know is that the Map sensor location and throttle body size and some other crap i forgot. if you get a caliper and measure it the SIR H22 is smaller then the BB4 H22. Also the MAP sensor on the BB4 is located on the Firewall while the SIR MAP sensor is on the TB.


read post below it is CORRECTED

[The G-Man]

Did the Preludes come in automatics?
I know none of the USDM model H22s came with autos until 1997.

My h22 came from a JDM BB4. REason that I know is that the Map sensor location and throttle body size and some other crap i forgot. if you get a caliper and measure it the SIR H22 is smaller then the BB4 H22. Also the MAP sensor is located on the facing the firewall instead of facing up. but correct me if im wrong

Doesn't the TPS face the firewall?