I'm just wondering if anyone has built an H23A engine without going either VTEC or Turbo. I'm interested in working on mine, but I want to keep it "natural" so I don't want to change the head or fit a turbo to it. Has anyone done anything like this seriously? If you have, how did you go about it and what kind of power did you end up making?

 

screw that. just drop in a h22

you might be able to find some things if you search about people building h23's but ive never seen it without a h22 head or turbo

 

I have done a search, but literllay every build I've found uses a VTEC head or is boosted. Is the H23 so terrible that noone bothers or something? Or is it just much much cheaper to go one of those routes

 

its a great engine. it just makes more sense to people to either go the FI or VTEC route. you would get more out of just swapping an H22 head, rather than building an NA H23.

 

I've taken the H23 to a modest level of perfomance. The engine ended up being such a hybrid of various Honda parts that it's not much of an H23 anymore. It's at 200whp and 183wtq.

Essentially it's a 2307cc H23 at 11.7:1 compression with Crower stage 3 cams and a modded DC header.

It's pretty simple in a roundabout sort of way.

https://honda-tech.com/zerothread?id=1046336

Pirate

 

I've seen your engine mate. It looks really good, though I was hoping to stick with stock H23A block/head and see what I could do

 

My two bits on the H22 vs the H23.

You have more low end power with the H23. H22 makes power 4k and above. I dont have any dyno tests but Ive both in my car.

The H23 would have great pick-up up to 5k.

The H22 pulls like a mother effer past 4k.

But considering a daily driver in 2nd gear gets to around 50 mph at 6.5 k, getting past 4k on that thing and your already breaking most speed limits.

I almost miss my H23. Which is why Im planning on building it after Im done working on y h22 in a year or so.

Low End power

 

I was going to say to look into some cams. I emailed Brian Crower the other day and one of the guys there emailed me back, and they have discontinued their NA line up of cams for the h23.

 

Okay. I know it's complicated sometimes but there's a big difference between Crower and Brian Crower. They are two separate companies. Crower (one word) carries nonVTEC camshafts for the H23A1 which are also compatable with the JDM F22B DOHC nonVTEC. Brian Crower (two words) has never carried any camshafts for the H23A1 so it's difficult to discontinue something they never had. The only thing that links the two companies is that Brian Crower (the man not the company) used to work at Crower (one word, the original company). Brian left to head up his own line of import products.

Please understand that I said I have Crower camshafts. I have never said anything about Brian Crower cams.

For clarification, the camshafts that are moving the valves in the cylinder head of the engine that powers my automobile were purchased from here.

http://www.crower.com/cat/impo...shtml

Frustrated,
Pirate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chris_melba &raquo;</TD></TR><TR><TD CLASS="quote">I've seen your engine mate. It looks really good, though I was hoping to stick with stock H23A block/head and see what I could do</TD></TR></TABLE>

Well despite the labels on the engine reading something other than H23Ax it's still the simple equivilent of an H23 with an 88mm bore at 11.7:1 compression with cams and a DC header.

With your H23 just install some 87.25mmm OBD1 JDM H22 pistons to get about 11.5-12:1 CR throw on some DC or knockoff header and some camshafts and you will have more power than a stock H22 and more torque as well. There's very little difference between my engine and an H23 FWIW.

Pirate

 

Again, thanks for the helpful info Pirate, but quit giving me **** all of the time when I have a question, thank you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ECX &raquo;</TD></TR><TR><TD CLASS="quote">Again, thanks for the helpful info Pirate, but quit giving me **** all of the time when I have a question, thank you.
</TD></TR></TABLE>

u didnt ask a question....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">
Well despite the labels on the engine reading something other than H23Ax it's still the simple equivilent of an H23 with an 88mm bore at 11.7:1 compression with cams and a DC header.

With your H23 just install some 87.25mmm OBD1 JDM H22 pistons to get about 11.5-12:1 CR throw on some DC or knockoff header and some camshafts and you will have more power than a stock H22 and more torque as well. There's very little difference between my engine and an H23 FWIW.

Pirate

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

That sounds good. I've heard that if you put H22 pistons into an H23 you need to change them somehow (put holes in them I think) because the H23 doesn't have oil squirters. I was looking at crower cams. They sound pretty good, the difficulty for me will be getting them to australia.


Thanks very much for your help so far

 

My engine's got no oil squirters and it's been good for the last 48,000 kilometers (30,000 miles) with about 9% of that on a road racing course without an oil cooler.

The OEM H23 rod actually has a small oil hole purpendicular to the rod journal to spray oil through the crank journal, through the brearing and out the side. So there's some oil going to lubricate the cylinder walls and wrist pins FWIW.

Pirate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">The OEM H23 rod actually has a small oil hole purpendicular to the rod journal to spray oil through the crank journal, through the brearing and out the side. So there's some oil going to lubricate the cylinder walls and wrist pins FWIW.</TD></TR></TABLE>

That's what I'm talking about. The oil holes. Doesn't the H23 need those in order to have proper lubrication? Have you done anything to replace these holes?

 

Jdm F22B...Great for boost

 

How about saving money and just sticking with the USDM, f22a/b1.

 

I don't want boost and I don't want VTEC, I just want an all motor H23A with a little bit of grunt to scare all the H22A owners

 

good luck with that

 

There's a guy on here with Crowers, bolt ons and a 60 shot making like 217whp IIRC?
There you have it

 

I got a lightly modded H23, I beat a mistubishi eclipse gsx with it and a gst on another occation. It's really a cheaper way to have a faster than some "turbo" car. I got the head shaved .030mm, and got H22 usdm pistons. 2.5 inch pipe w/o cat, cold air intake, a cheap header, racing chip on ecu, 10.5 mm spark plug wires, short shifter Got an H22 head ready to be ported and polished but I want to play with this one for now till I break it, It's a fun setup I think

 

Sounds good man. Have you ever dynod it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Acidcrakker &raquo;</TD></TR><TR><TD CLASS="quote">My two bits on the H22 vs the H23.

You have more low end power with the H23. H22 makes power 4k and above. I dont have any dyno tests but Ive both in my car.

The H23 would have great pick-up up to 5k.

The H22 pulls like a mother effer past 4k.

But considering a daily driver in 2nd gear gets to around 50 mph at 6.5 k, getting past 4k on that thing and your already breaking most speed limits.

I almost miss my H23. Which is why Im planning on building it after Im done working on y h22 in a year or so.

Low End power </TD></TR></TABLE>

this is true but you're talking like the h22 has no low end power at all, like its a b16 or something. im coming to the world of h22 from a f22b1 powered acura cl, basically an accord. and the lude has much more low end power than the acura.
as to the original topic, i woudlnt bother building an h23...the prelude is meant to have an h22 IMO, its a great engine....just swap that thing

 

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

Which is why the OP SHOULD build his h23, not everyone wants do the same thing.

 

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

Which is why the OP SHOULD build his h23, not everyone wants do the same thing.</TD></TR></TABLE>

heck, i wasnt flaming him for wanting to do that...it might an interesting project how knows...