joeyfmx22

wtf? your wrong! look it up dude, 99 is when i think h22a4 came out, 97=98 h22a

FadedEpic

Ok guys I am a total noob, and i know im off on the post topic, but I really could use some help. I have a 97 Prelude SH. I am looking to swap out the engine cuz i blew the one that was in there. The one that was in there was a H22a4. does that mean that wans't the origional engine, since joeyfmx22 just stated it came out in 99? That doesn't make sense cuz i thought the H22a4 was just the SH model of the block. I am just really confused at what I can switch into. I would like to switch into a JDM motor made for my SH so i dont have to switch out the Trans, or fab it, or whatever. I just dont really want to deal with the trans if at all possible. Do they make the jap engine for the SH? Cuz just looking I cant find a JDM H22a4... only H22a's. ANY info to clear this all up would be very helpufl. Thanks

rive22

excellent thread!

kablamo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by joeyfmx22 &raquo;</TD></TR><TR><TD CLASS="quote">wtf? your wrong! look it up dude, 99 is when i think h22a4 came out, 97=98 h22a</TD></TR></TABLE>

dude you dont know what you are talking about...

naujcdl

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by joeyfmx22 &raquo;</TD></TR><TR><TD CLASS="quote">wtf? your wrong! look it up dude, 99 is when i think h22a4 came out, 97=98 h22a</TD></TR></TABLE>


damn, i didn't know i could call my USDM H22A4 block a jdm h22a.

dude, you are so wrong...

FadedEpic

True story... every SH has a h22a4 and every base model has an H22a. even if you swap it, its still an H22... it just is JDM spec. If you have a JDM h22a4, thats the Type S engine.... i dont know if the block number on it is different or not tho.

naujcdl

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FadedEpic &raquo;</TD></TR><TR><TD CLASS="quote">True story... every SH has a h22a4 and every base model has an H22a. even if you swap it, its still an H22... it just is JDM spec. If you have a JDM h22a4, thats the Type S engine.... i dont know if the block number on it is different or not tho.</TD></TR></TABLE>

still wrong bro, all 5th gens came with the h22a4, no such thing as the base with a different engine.

LowFlyin'

I have a question about the ATTS unit being like an open diff when driving in a straight line? Why can I leave 2 black lines when leaving the line? I thought an open diff would send all the power to the wheel with least resistance?

Ransom

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FadedEpic &raquo;</TD></TR><TR><TD CLASS="quote">True story... every SH has a h22a4 and every base model has an H22a. even if you swap it, its still an H22... it just is JDM spec. If you have a JDM h22a4, thats the Type S engine.... i dont know if the block number on it is different or not tho.</TD></TR></TABLE>

Completly wrong
I happen to own all 3 a 98 base model that reads h22a4, a 00 type sh that reads h22a4, and a 94 jdm h22 that reads h22a. the jdm engines do not have a number after the letter

SKDRCR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FadedEpic &raquo;</TD></TR><TR><TD CLASS="quote">Ok guys I am a total noob, and i know im off on the post topic, but I really could use some help. I have a 97 Prelude SH. I am looking to swap out the engine cuz i blew the one that was in there. The one that was in there was a H22a4. does that mean that wans't the origional engine,</TD></TR></TABLE>

Nope the h22a4 is what your car came stock with.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FadedEpic &raquo;</TD></TR><TR><TD CLASS="quote">
since joeyfmx22 just stated it came out in 99? That doesn't make sense cuz i thought the H22a4 was just the SH model of the block.</TD></TR></TABLE>

Nope 97-01 all came with h22a4's that's the engine code

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FadedEpic &raquo;</TD></TR><TR><TD CLASS="quote">
I would like to switch into a JDM motor made for my SH so i dont have to switch out the Trans, or fab it, or whatever. I just dont really want to deal with the trans if at all possible. </TD></TR></TABLE>

if I were you, i would get a complete jdm h22a motor w/tranny
you will need an OBD2 to OBD1 conversion harness.

this way you can get rid of the problematic ATTS system all together.

LowFlyin'

I know the JDM Type-S came with ATTS, so wouldn't that block be the same as the USDM Type-SH?

Ransom

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LowFlyin’ &raquo;</TD></TR><TR><TD CLASS="quote">I know the JDM Type-S came with ATTS, so wouldn't that block be the same as the USDM Type-SH?</TD></TR></TABLE>
The block is the same, internals are different and the stamp is different. US=h22a4, JDM=h22a

fuccarlos

quick question im currently taking the atts out for good and putting in a complete non sh motor with the jap spec tranny the motor mount is completely diffrent between the two if i get the other mount for the 99 non sh tranny will it bolt up to the jap spec tranny? and if not would switching the outer casings be the best alternative?

fuccarlos

anybody know about the motor/tranny mounts?????

non_VTEC

Are the base and SH intakes the same? Are they interchangable?

accordboy99

i have a 99 accord i want to do a engine swap in eventally but can i run the 97-00 prelude type s engine or does it have attt or how about a 00-01 h22 euro accord type r engine swap or just a 92-01 h22 were base models in some of those years right

car_boy_16

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LowFlyin’ &raquo;</TD></TR><TR><TD CLASS="quote">I have a question about the ATTS unit being like an open diff when driving in a straight line? Why can I leave 2 black lines when leaving the line? I thought an open diff would send all the power to the wheel with least resistance?</TD></TR></TABLE>
Someone Answer this...

radioact1ve

So what I have read so far is that you can't have ATTS and turbo at the same time? Is that right? Maybe you can but that would be dumb?

I dont know, sorry new n00b here and I'm a little confused about all this h22a(4) talk. I know what they are, just the whole conversation lost me.

boostedlude97

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by joeyfmx22 &raquo;</TD></TR><TR><TD CLASS="quote">wtf? your wrong! look it up dude, 99 is when i think h22a4 came out, 97=98 h22a</TD></TR></TABLE>
i have a 97' with a H22a4?????
i'm i just special or are u just dumb??????

UA6 BALLER STATUS

All USDM 97-01 Preludes have H22a4's stock.

H22a is JDM

H22a4 is USDM.

The 5th gen 96+ JDM Prelude Type S is the enigne you'll be looking for.


European Preludes:
In the UK and the rest of Europe, there are two engine sizes available, the standard 2.0 litre and the 2.2 VTEC. Both are available with a 5 speed manual transmission or the Sequential Sport Shift transmission. From 1999 onwards, European Preludes were fitted with a slightly different 2.2 VTEC engine, they had the H22A8 where the previous model had the H22A5. The H22A8, which was only available with manual transmission, is rated at 197 BHP, where the H22A5 is rated at 185 BHP

There are a few different Prelude models available in Japan, including both 2.0 litre and 2.2 litre VTEC. The names of the models are different to elsewhere, including Xi, Si, SiR, SiR S Spec and Type-S. The best one is the Type-S. It's engine which is the H22A (no number afterwards) is rated at either 217 or 220 BHP. Mechanically I think it is very much the same as the H22A8. Japanese Honda Preludes have a range of optional extras which are not available in the UK, including DVD car navigation, a number of differently styled rear wings, rear window wiper, a slightly different front lip, various interior trim options (including a horrid red leather interior) and different front fog lights, which are sought after items in the UK and USA.

US Preludes:
Preludes in America were fitted with the H22A4 engine which was rated at 195 BHP. From 2000 onwards, they were rated at 200 BHP, but this has been suspected to be false marketing hype from Honda. America just have the 2.2 VTEC, no 2.0 litre model. There are two models available - Prelude SS and Prelude Type-SH (chassis code BB6). The Prelude SS has the Sport Shift transmission and the Prelude Type-SH has ATTS (Active Torque Transfer System). ATTS is a device which aids the handling of the car, it transfers torque between the wheels. It has the similar effect of an LSD. The OEM Honda body kit has a slightly different front lip and there are also other minor differences. They don’t get the motorised headlamp adjustment, no coin tray, no under bonnet insulation shield, different steering wheel, different ECU (OBD2 instead of the European OBD1), different backseat, different internal ceiling light, side repeaters are in the front bumper instead of the side wings, no rear fog light (legal mandatory requirement in the UK)

Yes he is dumb and wrong.


Modified by Type SH at 4:39 PM 12/25/2004

dvscivic

Hope this info help you cause it almost made me cry, now i'm still not sure about my H22a4 block with Dan Benson sleeves, Wiseco pistons, Manley rods ect rebuild the motor and wanted a LSD Quaife to put more power to the ground.

I came across the section where they say AVOID H22a4 ATTS and on the quiafe website they provide LSD's to all except the SH.

At this point i realized i got a h22a4 motor. So i did some research and found this:

Speaking of Preludes, we're looking for VTEC Preludes, 1994 to 1997. There was also the H23A1, a DOHC non-VTEC engine available in the Prelude Si. In the U.S. market, no limited slip was available for any H22, and the gear ratios remained the same for all the engine/trans combinations we're interested in.
The only H22 to avoid is from the Type SH Prelude. The brilliant torque distribution system (an electronically controlled box of clutches bolted to the block that Honda calls ATTS) replaces the intermediate shaft and its mounting bracket. The engine and transmission code to avoid is H22A4 and M2U4, respectively. Again, when someone actually swaps this in functionally, let us know.
As another option, the Accord manual transmission will bolt up and has the same internals, apart from slightly taller gearing. Taller gears may be good if you plan on forced induction. Naturally aspirated, though, assume Honda did its homework matching the H22's power output to the transmission gearing and stick with a Prelude transmission.

Anyway I got the H22a4 with M2V5 tranny so i guess im ok then, could anyone clear my mind on this. It is really urgent cause i'll shoot myself if i got the SH ATTS version!!!

Cause i plan 700HP to the wheels.

preludeserge

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by radioact1ve &raquo;</TD></TR><TR><TD CLASS="quote">So what I have read so far is that you can't have ATTS and turbo at the same time? Is that right? Maybe you can but that would be dumb?

I dont know, sorry new n00b here and I'm a little confused about all this h22a(4) talk. I know what they are, just the whole conversation lost me. </TD></TR></TABLE>

Yes, you can turbo your SH. ATTS wouldn't work as it supposed to though. It would be like carrying extra 90lbs or so, that's all.

EDIT: I should have said that it also depends on whp number.

ChrisRicketts

there's some good info here about the specs of each.

http://www.ntpog.org/specs/index.shtml#gen5

Sticky Tires

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MugenPoweredLude &raquo;</TD></TR><TR><TD CLASS="quote">"you CAN mod the suspension on a SH, just don't slam it or you'll get the ATTS light.

i dont agree with that
that is false

if you get a ATTS light after you drop your car, theres something else wrong
theres plenty of SH owners dropped and dont have the ATTS light on

</TD></TR></TABLE>

I have stated this before, you can lower the SH, but to a certain height. If you slam it (dropping the car to the lowest setting), you will risk burning out the ATTS unit after a period of time.

It was designed to work at a certain height, hence longer front springs on the type SH.

I do agree if you drop the car at a moderate height and get the ATTS light, there is a problem. It could be uneven drop to knocking a sensor loose.

LeafBoy

why would a SH be a better pick than a base for auto-x and track use if SH's cant have LSDs?