How would i be able to tell the difference b/t these two H22 engines?

is it worth the extra $150 or so to get the newer one?

what's the advantages/disadvatages to getting newer one? i need to fit this into a 97h/b if that helps..

the ratings seem pretty close

i was thinking of ordering through totalboost.com - what do you guys think?

 

the 97-01 h22 will have the engine stamp h22A4, the h22 for 92-96 engine stamp will say h22A1. it depends on what ur gonna be doing. if ur going turbo i'd get the h22a1, actually i'd get a 92-96 whatever the case unless u can't find one with low milage. the 92-96 has a closed deck, obd1 (except 96), and closer gear ratio's in the tranny. the differences are very small. both motor's are good, but a good h22a1 will be about .1-.2 seconds faster in the quarter.

 

Do a search for totalboost.com in the FI forum, there was some very interesting information about them a while back.

 

Also, I don't know if it was mentioned, but if its going into a obd2 car, it would be easiest to swap with a obd2 engine. And as far as hp and tq rating they are very very similar and compression I believe is the same. And I think the h22a1 has a higher redline (but not 100% sure)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18gLUDE &raquo;</TD></TR><TR><TD CLASS="quote">the 97-01 h22 will have the engine stamp h22A4, the h22 for 92-96 engine stamp will say h22A1. it depends on what ur gonna be doing. if ur going turbo i'd get the h22a1, actually i'd get a 92-96 whatever the case unless u can't find one with low milage. the 92-96 has a closed deck, obd1 (except 96), and closer gear ratio's in the tranny. the differences are very small. both motor's are good, but a good h22a1 will be about .1-.2 seconds faster in the quarter.</TD></TR></TABLE>

arent all h22 gears teh same. and the h22a1 is slower then the h22a4. the h22a1 puts out 190hp while the a4 puts out 200. if u want, you should go with jdm. higher compression and its puts out 200. if your into tuning, i wouldnt go with the a4 since it is obd2.

both a1 and a4 engines are 10to1 but the jdm h22a is at 10.6to 1

 

i'm talking about the gears in the transmission. the h22a1's gears are closer i'm 100% sure. a 4th gen h22 is a tad bit faster, almost even, though it has 5 hp less. the 92-96 has 190 hp, the 97-99 has 195 hp, and the 00-01 has 200hp. and as far as tuning is concerned obd1 is way better than obd2. the obd2 computer tries to detune itself when u add parts so that it'll get good gas milage. why do u think luders started to work towards the obd2 workaround theory.

 

The H22a4 have more power. If you plan to modify, then the A1 is better for force induction because it is a closed block. Most engine builders that I've spoken to also prefer the A1 for a NA build. Which one you get really depends on your plans for the engine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thedread &raquo;</TD></TR><TR><TD CLASS="quote">The H22a4 have more power. If you plan to modify, then the A1 is better for force induction because it is a closed block. Most engine builders that I've spoken to also prefer the A1 for a NA build. Which one you get really depends on your plans for the engine.</TD></TR></TABLE>

H22a4 has more power Eh..Well, if you think so

 

h22a1=190hp
h22a4=200hp

h22a1=closed deck
h22a4=open deck

the h22a1 has been shown to actually put down more power than the h22a4.

either one is fine. the h22a4 has a bigger crank main/journal(IIRC).

it really doesn't matter if the motor is obd1 or obd2. alot of the things you can switch out. although there aren't many. but if you don't have the extra parts. get the obd2 version as your car will only work with an obd2 alternator dizzy etc. all of which need to be h series.

in otherwords. for ease of swap get an h22a4

 

once again...
97-99 h22a4 only has 195hp! i have a 97 h22a4
00-01 h22a4 has 200hp!
92-96 h22a1 has 190hp!

if u plan on going hondata eventually u might as well get obd1 not obd2. u have to switch it to obd1 to get hondata.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18gLUDE &raquo;</TD></TR><TR><TD CLASS="quote">once again...
97-99 h22a4 only has 195hp! i have a 97 h22a4
00-01 h22a4 has 200hp!
92-96 h22a1 has 190hp!

if u plan on going hondata eventually u might as well get obd1 not obd2. u have to switch it to obd1 to get hondata.</TD></TR></TABLE>

Once again the magical 5 and 10 HP gain...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by see_our_vtec &raquo;</TD></TR><TR><TD CLASS="quote">

either one is fine. the h22a4 has a bigger crank main/journal(IIRC).
</TD></TR></TABLE>

nope actually the 98+ h22a4 has the 55mm crank journals, anything below the 98 has 50mm crank journals in h series

edit: woops, under friends name, damn it


Modified by drumking15 at 12:40 AM 1/24/2004

 

cotton i'll bet money that my numbers are right. i can prove it.

 

Yeah, in order to go Hondata it would have to be OBD1. However, you could just get an adapter harness for OBD2 to OBD1 and use OBD1 ECU with Hondata.

Very easy!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18gLUDE &raquo;</TD></TR><TR><TD CLASS="quote">cotton i'll bet money that my numbers are right. i can prove it. </TD></TR></TABLE>

So you are telling me that the H22a4 has 10 more Hp........ And your going to prove it with what? Honda's numbers...........Do you think the H22a4 really has 10 Hp more then the H22a1? I bet you my lude that, the H22a4 has 10Hp less then the H22a1..........

Dynos dont lie.....Simple as that....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 18gLUDE &raquo;</TD></TR><TR><TD CLASS="quote">once again...
97-99 h22a4 only has 195hp! i have a 97 h22a4
00-01 h22a4 has 200hp!
92-96 h22a1 has 190hp!

if u plan on going hondata eventually u might as well get obd1 not obd2. u have to switch it to obd1 to get hondata.</TD></TR></TABLE>

who cares, it's all about WHP
to the crank=

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cottonwoodz &raquo;</TD></TR><TR><TD CLASS="quote">
Dynos dont lie.....Simple as that....</TD></TR></TABLE>

actaully some do...id go into detail, but...

1) its way to early to get into physics and such
and
2) im goin to the junkyard to find me some spare trannies and heads

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VRDrvr &raquo;</TD></TR><TR><TD CLASS="quote">Also, I don't know if it was mentioned, but if its going into a obd2 car, it would be easiest to swap with a obd2 engine. And as far as hp and tq rating they are very very similar and compression I believe is the same. And I think the h22a1 has a higher redline (but not 100% sure)</TD></TR></TABLE>

that's what i was thinking about OBD2 for, but id like to boost it within a few months of getting it all working. BUT, since im going boost, i should probably get the A1 you guys say?

does anyone have a brief description of what more i would have to do with the OBD1? i mean, if i get that skunk2 obd converter i'd pretty much be set, right?

 

To settle the hp numbers. Yes, Honda claimed a "10 hp" more on the 5 gen. But there was no signicate change in the engine to warrent this claim. So it is widely accepted that the 10 hp deos not exist. Just a marketing ploy.

 

cotton- my stock h22a4 dyno'ed 162whp, i bet u my turbo car that ur stock h22a1 isn't dyno'ing 10 whp more than me ( i have never seen a bone stock lude hit 172whp) but the reason i go by what honda rates them is because whp on a dyno has too many variables, temp, altitude, fan, humidity,etc..... so u can't say which car has what hp. u can only average it and state what the manufacturer rates it at. which is 190, 195, 200. also the 5 hp difference in the h22a4 97-99 and the h22a4 00-01 is the exhaust manifold, they are different in design.

 

hey genius. differnt variables need to be realized here. temp, humidity, altitude, gear, modification. etc. etc. if they were both equal. i guarantee you that the h22a1 will dyno more. why? because i've seen it done.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cherns &raquo;</TD></TR><TR><TD CLASS="quote">To settle the hp numbers. Yes, Honda claimed a "10 hp" more on the 5 gen. But there was no signicate change in the engine to warrent this claim. So it is widely accepted that the 10 hp deos not exist. Just a marketing ploy. </TD></TR></TABLE>

actaully the changed the cams and exhuast setup a tad...nothing major but it is a change

 

the h22a1 also has bigger injectors and i might be mistaken about this, but i also read that the combustion chamber has a slightly different design.

 

hay dont forget that obd2 sucks ***! h22a1 all the way

 

hey genius...isn't that what i said about the variables in my previous post? i doubt u seen two stock preludes dyno at the same time. one must've had an intake or something.

as for the rest of you. i guess u didn't see my previous posts. i said that i would get an h22a1 rather than a h22a4 because of tranny gears ratio, closed deck, and obd1. i was just explaining what honda rated each one.