Difference Between JDM H22a's

[blizzard335]

Ive been wanting to ask this question all along.

Since many of you guys have done the H22a swap, be it JDM or USDM motors.

My question is regarding the JDM motors most of you guys have.

How do you guys know (or differentiate) from a 190PS Accord motor with a 200PS Prelude motor? Provided that the transmission is not included, that is. Just the engine itself.

Thanx.

[foamypirate]

If I'm not mistaken, JDM = H22A, USDM = H22A1, on the engine code stamp.

[NAiL05]

If I'm not mistaken, JDM = H22A, USDM = H22A1, on the engine code stamp.

Dont forget the h22a4 in the 5th gen ludes for the USDM. But most jdm motors will not have that number at the end of the letter. Its just h22a, b16a etc etc.

[blizzard335]

I know

I was just wondering about the JDM motors

Accord or Prelude?

[foamypirate]

Ah, gotcha. No idea, lol.

[NAiL05]

Are you talking about the F20B? Thats the only one I know with auto thats a lower power rating like 180hp or so. I know there are less aggressive cams, IM is diff or something like that and some minor stuff. I think the comp ratio isnt the same also. I dunno if I got an h22 out of an accord but dont think so. I did however get the p0f which was the accord SiR ecu.

[blizzard335]

Yeah, I want to know how you guys can differentiate between the Accord SiR and the Prelude SiR.

Different power outputs, the Accord having 190PS, whilst the Prelude 200PS.

Other than the P0F ECu that is.

Or does ECU dictate how much power you got?

The F20B manual and auto differ in cams.

Because over here, its clear cut whether its an H22 from an Accord or Prelude, since they come in the front clip, bodyparts and all, with the calipers and such.

So we know whether were getting 190 or 200.

How bout you guys?

[Chrisisiced]

Are the valve covers different colors?

[blizzard335]

Are the valve covers different colors?

same

blacktop

so how do you guys know? Im just curious. Not trying to stir up anything.

[NAiL05]

Well you can check the stamping. I would think they are different just like how the Euro R/Type S/normal H22 are differentiated. That would be my other thought on how it can be compared.

[d112crzy]

same

blacktop

so how do you guys know? Im just curious. Not trying to stir up anything.

I don't think anyone knows.

I bet 90% of people on this board that have h22's think they got it from a prelude and don't know that accords come with an h22a as well.

For all we know, the majority of the h22's that get imported here could be from accords, with the 190hp. That would explain as to why only a few h22's put out more power than most. aka, freak motors.

[Shadow1]

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.

[ThrakBarts]

I know my h22a was from an accord sir wagon because of the mounts, harness, and chassis tag that came with the swap.

mine came with the p0f ecu and the throttle body was quite smaller than the h23 tb that I installed.

engine code: H22A

[ThrakBarts]

I am curious as to what other factors would cause the -10hp to the crank.

[fatboy1185]

I am curious as to what other factors would cause the -10hp to the crank.

throttle body size, manifold size,