Hey guys, I know you prob get asked the same question all of the time, but I'm going to ask.

I have a 92' BB4 chassis Si Prelude, and the obvious auto tranny to go along with the H23. So, its lacking in the power dept. I know that they are rated a 160 hp to the crank for stock. So, 160hp is the same as a B16 engine, which is pretty quick, but the car is so heavy. The H23 I have was just recently installed about a month ago, because the previous owner blew a head gasket. I just decided to buy a replacement.
- If I put a manual tranny on my lude, would it make a big difference. I know that the power would always be ON compared to the auto.
- I have a DC Sports header, K&N, and put the factory wheels and tires back on for weight savings, plus some other little stuff.
- So if I keep the H23, what can I do to make it fast?

Thank you for helpful responses.

 

A bottal of nitrous will make it faster.


There isnt much of a diffrence between the 2 stock blocks, in terms of power. Both have same TQ and the H22 has 40 more horses

 

Ok, I don't know much about NO2 systems. I was looking at a ZEX kit. How many "shot" should I use safely w/o blowin my engine.

 

Swap a B16 in. Seriously. I wanna see how bad you get laughed at when you pop the hood. Better yet, slap a D15 in there... Two of 'em.

 

well lets go back to mathematics here
assuming that value "H" is constant, and also a natural (real) number.. if you take H and multiply it by 23, it SHOULD be greater than 22.

so i guess H23 > H22 in that sense, but when you factor in the hidden variable, we'll call it V, it becomes a whole new equation. so we'll conclude that:
H23 > H22
H23 < H22V
so what have we learned?

and yes, swap a B16 in there, we know the B16 and the B18C5 are the holy grails of honda. NO YOU DO NOT SWAP A PIECE OF SHT B16 INTO A PRELUDE. have you no knowledge of how motor's work? you do not focus only on peak horsepower, are you going to be at high RPM's all the time? more likely than not, you will be in the city just cruising correct? so what OTHER figure can we use aside from horsepower to measure power? HOW ABOUT TORQUE FIGURES! because thats what you're feeling as "pull"

 

wow guys

he obviously doesn't know much. if yuou dont want to explain it to him, why not point him to some basic resources, or just simply not reply at all and let someone with some more patience get in there to help.

or at the very least tell him to search the forum rather than ask teh same question thats been asked 10000 times.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Acidcrakker &raquo;</TD></TR><TR><TD CLASS="quote">A bottal of nitrous will make it faster.


There isnt much of a diffrence between the 2 stock blocks, in terms of power. Both have same TQ and the H22 has 40 more horses</TD></TR></TABLE>

A 20% difference isn't "much of a difference...in terms of power"?

 

wtf

 

Ok, first off, I DID NOT mean to put a b16 in a prelude, because alot of civics put h22s in their chassis. Come on man, yall made me sound like a newb. Especially after I just got finished reading about a ton of engine swaps before I posted. I even helped a few people do swaps. I made myself sound like: Well, uh, if I put this here b16 in my lude, this here 160 horses is a bad mama, LOL!!!! All I meant was the stock H23 has the same hp as a B16 = 160 hp, correct? Thats it. I drove H22s already, and I would not put any D or B series engine in my lude.

- And I new I meant that because thats why I said the Prelude is alot heavier of a car, just like the Accord. My H23 just seems sluggish. Come on! but thats what you get when you dont pay attention when you type. I was reading yalls posts, and felt like an ***.

 

Bottomline:

A.- Put H22A with obvious full conversion to manual tranny.

B.- Keep H23, since I just installed it, and get a manual tranny for it. I have bolt ons for the H23 also.

- Whats more worth the time.

 

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

A 20% difference isn't "much of a difference...in terms of power"?</TD></TR></TABLE>

I think you sole purpose in life is disagree with me, or question me.


Modified by Acidcrakker at 12:58 AM 8/23/2008

 

You'll only notice a difference between the h22 and h23 above 4900 rpms, which isn't normal driving. If you feel like your h23 is sluggish, as in how hard it pulls from 1000 to 4000 rpms, then an h22 would feel the same. Its only once you engage the vtec on the h22 that it acts like a different motor.

The h22 has vtec that engages at 4900 rpm stock, and that gives a better torque curve in those high rpm ranges (from 4900 to redline) compared to the h23, and hence the better peak horsepower number.

Conclusion: h22's are cooler, vtec is fun, the h23 is a respectable engine however, and the engines aren't really that different in a daily driver. Pick a project you can afford and learn as much as you can from it. Its not like having an h22 would make you happier in life, but working on cars is something we all seem to get something out of. So the project itself is the point.

People gave you rude responses because they'd like you to search first in the future. I searched h22 vs. h23 and got 980 hits. No wonder the other people on this forum that responded are frustrated.

good luck.

 

Vtec engauges around 5.2k on a stock engine. The torque specs are very close to damn near the same, except on the H23 you are at peak torque at 4k rpms and on the vtec its more like 6.8k rpms.

You have more HP up higher on the h22a for faster reving for max power. And on the H23 you dont have to rev that high for max power.

Vtec is fun, Ive owned both, they are about the same in speed. H22a is faster thought, and I wouldnt swap one in if the h23 is functional.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ImPuLsIvE &raquo;</TD></TR><TR><TD CLASS="quote">Swap a B16 in. Seriously. I wanna see how bad you get laughed at when you pop the hood. Better yet, slap a D15 in there... Two of 'em.</TD></TR></TABLE>

That was pretty dicky of you, he's just asking a question..

If you can get your hands on a h22 head, you can build a H23VTAK!

 

I have driven both and a healthy H23 actually feels like it pulls better down low than the H22. Also , if you are gonna go turbo later an H23 is a very good engine for boost. H22=good for N/A power. Its also good for turbo too, but thats not really on topic anyway.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Apex1972 &raquo;</TD></TR><TR><TD CLASS="quote">I have driven both and a healthy H23 actually feels like it pulls better down low than the H22.</TD></TR></TABLE>

thats probably because it does.

 

h23 (6500 redline) is for the person looking for good low end power and mild power.

H22 (7700-7900rpm redline) is for the enthusiast, the person who wants the high rpms, higer power, and for more spirited driving.

I personally love my h22a1. I have had it in 3 other hondas and now in the 92 si i swapped from Si Auto to vtec 5spd! i have been giving it pure hell for 5 yrs and has never broken on me yet. I hit 8k on a daily basis alot and i am overall happy with the stock power of the H22

 

Both Motors have the same ammount of potential. As long as you know what your doing you can accomplish anything with either or motor.

Take for instance the crappy little D motor from the CRX. That Bill Gude guy built one that can do around 450 hp, NA. WTF!

Dont take those numbers as acurat they are just roused from random thoughts only for examples.

 

Thanks guys, I'm gonna stick out the H23 for a bit. Eventually I'll run boost

 

listen to prelude_93vtec, get a h22 head on it to make a h23 vtec. You'll have the h23's bigger pistons with the h22's vtec. its soppose to be better all around or so ive heard. Swapping to a manual is always a good idea no matter what though.

 

h23 has the same bore as an h22...the h23 gets the additional displacement from a longer stroke.

 

There isn't enough development for the H23 to make it worth spending money on. Hybrids like H22/H23 and H23/F23 do work very well though. Look at the Hybrid section of the faq thread to learn more about those.