h22a type s vs h23a dohc vtec - Honda Prelude Forum

jspinn13 · 11-11-2010, 05:51 AM

i know this has been brought up before but just hear me out.

hey all, my h22a1 in my 93 'lude is dead, all the rings are bad and piston 4 is misfiring terribly.

anyways in light of this i want to do a swap (yay!) i want to go boost but its just too big for my buget right now so i thought i would just get a healthy h and put it in and when the money comes in BUILD IT.

anyways, i really want the jdm type s motor, and i almost got one but then i read a thread about an h23a DOHC VTEC. i was wondering what the main differences are in terms of torque and horses. also if the h23 is frm or not.

please help i need to get my 'lude running right again! thanks

also i just thought of this, since the type s redlines at a whopping 8.5-9k and the h23 doesnt even come colse even in vtec form what if you just took the h23a block and put a type s head on it? this is just a suggestion but then you get more torque and you even get the high hp gains and redline of the type s. maybe it wont work but i thought id throw it out there

CTrees · 11-11-2010, 08:28 AM

The Type S block won't mount up to your transmission, but I see you were thinking of just doing the head, which I believe works but you need the h23 head gasket, pumps, belts. There are some other threads on it for sure if you search h32 block h22 head or something like that.

jspinn13 · 11-11-2010, 02:49 PM

Quote:

Originally Posted by CTrees

The Type S block won't mount up to your transmission, but I see you were thinking of just doing the head, which I believe works but you need the h23 head gasket, pumps, belts. There are some other threads on it for sure if you search h32 block h22 head or something like that.

ok, thanks, but what if i got the type s transmission? its lsd and all that right? i have an lsd now too. i found a complete type s swap with tranny ecu harness and tcu. everything for $3000

CTrees · 11-11-2010, 05:20 PM

I'm not sure to be honest, the transmission will have the ATTS, see if anyone has swapped an ATTS equipped tranny into a 4th gen. $3000 is a lot for 20hp and the ATTS in my opinion. I got a JDM H22A from a BB8 SiR for 1100 w/o tranny, my M2B4 was 700, you can find them for less. If your current tranny is good just replace the motor.

The ATTS blocks are only compatible with ATTS trannys.

minilogoguy18 · 11-11-2010, 05:56 PM

Quit thinking about Type S, it's a waste, best is to buy the good old OBD1 H22a and build it because the type s motor isn't going to make any more power all motor than the regular H22a, only more stock. Besides, doubt you could put a ATTS motor/trans into a 4th gen, you'd have to go with the SiR S Spec.

If you really want a red top motor the Euro R accord motor is the best H22a mainly because of it's intake manifold but even that can be made to work with a black top H22a.

jspinn13 · 11-11-2010, 07:16 PM

what if i did a euro r swap? i mean then i get the manifold and all that. but would it be worth it? would there be any extra work i would have to do to put it in as far as fabrication?

jspinn13 · 11-12-2010, 05:39 AM

Quote:

Originally Posted by CTrees

I'm not sure to be honest, the transmission will have the ATTS, see if anyone has swapped an ATTS equipped tranny into a 4th gen. $3000 is a lot for 20hp and the ATTS in my opinion. I got a JDM H22A from a BB8 SiR for 1100 w/o tranny, my M2B4 was 700, you can find them for less. If your current tranny is good just replace the motor.

The ATTS blocks are only compatible with ATTS trannys.

the S didint come with atts, the only prelude that came with it is the SH

indylude18 · 11-12-2010, 06:47 AM

Quote:

Originally Posted by jspinn13

the S didint come with atts, the only prelude that came with it is the SH

Wrong. The type S came with ATTS, the s-spec did not.

Euro-R swap = not worth it. It's way too much money for such a small increase in horsepower. You could easily invest that same amount of money in a h22a and make more power.

jspinn13 · 11-13-2010, 09:38 AM

i know this may be a retarded question, but you could put a type s head on a regular h22 right? im only asking because the type s can be revved to 9 whereas the jdm h22a only to 8. so why spend a whole bunch of money on building a head so you can rev high when you cant just get the type s head? idk maybe im wrong.

indylude18 · 11-13-2010, 04:38 PM

Quote:

Originally Posted by jspinn13

you could put a type s head on a regular h22 right?

Yes.

minilogoguy18 · 11-13-2010, 05:05 PM

It doesn't rev to 9, it's more like a bit over 8 while the regular H22 is just under 8. It's not the head that allows it to rev that high either, balancing the bottom end will help safely rev higher but whats the point if power falls off at 8?