alright so do you guys think it is worth the tuning and hassle to do a h22a head on a h23 block or should i get a h22a motor and tranny or should i turbo a h23 what is your guys input??

 

h22

 

i would get a f22b and turbo it, nut thats just my openion

 

If you do it right, the H23 VTEC set up is awesome

 

It all depends on many many things.

What are you building the car for? Horsepower goals? Torque curve? Racing or street? What kind of racing if so? What's your budget? Are you paying someone else or doing your own work?

 

https://honda-tech.com/zerothread?id=689805

Check out the Hybrid motor links in the FAQ. Lately a lot of ppl have been goin the F block and H head route. Some people think F blocks are a waste of time, but I think its less work to use an F block than it is to use an H23 block.

 

H23 VTEC is not smart. You can make more power, more reliably with an H22a.

 

whats ur take on F/H combo?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xxredpreludesixx &raquo;</TD></TR><TR><TD CLASS="quote">alright so do you guys think it is worth the tuning and hassle to do a h22a head on a h23 block or should i get a h22a motor and tranny or should i turbo a h23 what is your guys input??</TD></TR></TABLE>

See the sig...yummy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ludebehavior85 &raquo;</TD></TR><TR><TD CLASS="quote">whats ur take on F/H combo?</TD></TR></TABLE>

H23/F23 is cool because you're not trying to make a big stroke have VTEC rpms. It's just an H23 with a bigger stroke..and built for low end...nobody is planning to run the thing to 7000+ rpms

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by satan_srv &raquo;</TD></TR><TR><TD CLASS="quote">H23 VTEC is not smart. You can make more power, more reliably with an H22a.</TD></TR></TABLE>

I strongly disagree, H23 VTEC is perfectly fine and will crush an H22 when built right... When people build H23 VTEC's that dont really know how to build them or set them up they break, then they go and blame them ont he H23 block when in actuality... If they knew what they were doing in the first place they wouldnt have blown up...

More stroke, more displacemnt is going to create more torque and ultimately make more power...

H23 VTEC &gt; H22 x 2

Just out of curiosity, why is the H23 VTEC not smart?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ludebehavior85 &raquo;</TD></TR><TR><TD CLASS="quote">whats ur take on F/H combo?</TD></TR></TABLE>

Its never a good idea to run a 85-86mm bore with a a cylinder head that has a larger bore combustion chamber of 87mm. Ive explained it a few times in the hybrid threads in this forum...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by satan_srv &raquo;</TD></TR><TR><TD CLASS="quote">H23 VTEC is not smart. You can make more power, more reliably with an H22a.</TD></TR></TABLE>

I strongly disagree and have proven otherwise, as have others on the board. Buuuutt...........

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Innovation &raquo;</TD></TR><TR><TD CLASS="quote">
I strongly disagree, H23 VTEC is perfectly fine and will crush an H22 when built right... When people build H23 VTEC's that dont really know how to build them or set them up they break, then they go and blame them ont he H23 block when in actuality... If they knew what they were doing in the first place they wouldnt have blown up...

More stroke, more displacemnt is going to create more torque and ultimately make more power...

H23 VTEC &gt; H22 x 2

Just out of curiosity, why is the H23 VTEC not smart?</TD></TR></TABLE>

Looks like Rick got to it before I did

 

then we agree to disagree. everyone has an opinion

usually I warn people against it as they haven't a clue what they are getting into. If you're experienced it's not so much an issue.

 

yea i looked into that f/h hybrd motors i was very interested especially in the "g23" build that was goregeous and a well thought out and planned build im just saying because im kinda tired of this lil h23 and i blew one already and just bought another used cause i need the engine so i was thinking of either having a custom shop near me tuning and setting up a h23 vtec or just dropping a h22 and tranny in my budget is ok i can get money when i need it no problem as for racing/street is 50/50 both ways i wanna do both daily driver with weekend beating at the track so i cant decide which is a better route to go

 

the other thing i could do is just build the **** out of my h23 and turbo it or nos on it my main goal is 200 whp anyway i can get and ill be happy

 

Stay away from the F block, your better of witht eh H23 bottom end... Build the H23 botom end the right way, with the H22 head and youll be in love

1. Make sure your main/rod journals on your crank and mains on the block are in good shape.

2. Have the entire rotating assembly balanced (all the way to the clutch)

3. Run clearances on the loosest possible oem recomended spec (for a street car).

This may take a bit of mixing, matching and measuring to get the clearances correctly dialed in.

4. Look into running a damper (ATI or Fluidamper), both will save you the trouble of bearing failure.

Thats a good start, follow those steps and youll be fine

If you want to go boost on a H23 Id recomend destroking the motor with a H22 crank and rods, boost likes efficiency

 

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

It also likes displacement

 

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

It also likes displacement </TD></TR></TABLE>

not from stroke, too much stroke is pointless with boost... The turbo makes tons of torque so theres no real need for it... Just keep the stroke small and the bore a little bigger and go boostin... The increased cylindr pressure from the lower r/s ratio is something your going to want to avoid with a boosted motor...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Innovation &raquo;</TD></TR><TR><TD CLASS="quote">Its never a good idea to run a 85-86mm bore with a a cylinder head that has a larger bore combustion chamber of 87mm. Ive explained it a few times in the hybrid threads in this forum...</TD></TR></TABLE>

I know you already explained, i just wanted to see what Satan_SRV's oppinion on the topic was. I didnt ignor what u explained to me earlier.

 

If you can find a factory JDM H23A (blue-top) in good condition, I would go that route. Then you'll have the extra displacement and torque of the H23 without it being a "frankenstein."

 

I think the blue tops are the euro accord R motors. The Factory equivilant of a USDM h23 is an F series I think.

Someone correct me if im wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xxredpreludesixx &raquo;</TD></TR><TR><TD CLASS="quote">the other thing i could do is just build the **** out of my h23 and turbo it or nos on it my main goal is 200 whp anyway i can get and ill be happy</TD></TR></TABLE>


then why hassle w/ the hybrid engine or boost when you could buy a nitrous setup...

 

im just wondering, but why dont more people who want H23 vtec just use an h22 motor and replace the crank and rods with an h23? btw, what would be the displacement of a motor with h22 block at 89mm bore with h23 crank and rods?

 

i was wondering the same thing