ive done alot of reading and i jsut got a h23 block for cheap and currently have a h22 swap done already... i plan on going with a h23 vtec budget build with using stock components in the block... i want to block to consist of stock h23 crank and rods with h22 type S pistons.... heres my dilema everyone says the blocks the h22 and h23 are identical in spec height width and all that... so im goin to use h23 block ive done alot of searches on this topic and people come up with diff compression ratios one guy came up with 11:5:1 and another guy came up with 12:5:1 whats the real story?? i want to know the truth before i build it im lookn for 12:5:1

 

https://honda-tech.com/zerothread?id=897315

Unfortunately the mod in that forum is unable to distinguish the difference between an informative thread and bandwidth so the thread was locked barring you or anyone else from contributing or asking any other questions regarding.

There is a lot of good info in there, a lot of positive steps in the path of clearing up some of the misinformation posted all over the web

Im still trying to find the time to get all the measurements done and posted, Im hoping to be able to get that finished in the very near future... Once we have the measurements, we can get exact numbers... But I will tell you this, its not 11.5:1

Read the thread I just posted, youll find out why...

 

yep thats the same post i read where it says 12:5:1 and theres another post that says 11:5:1 i wish i knew lol im tryn to build a budget setup stock parts in block

 

the pistons stick out of the deck... alot

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MHRacing-310 &raquo;</TD></TR><TR><TD CLASS="quote">the pistons stick out of the deck... alot</TD></TR></TABLE>

Thats the main reason I started that thread (link posted above). People have been misinformed for years by respected individual/s on this and other boards who were assumed to know what they were talking about.

Hopefully the upper end (global mod's/admin) will see that thread shouldnt have been locked and open it back up for more people to contribute info/experiences

 

i wish i only knew... but since its def not 11:5:1 as stated above then i think i may just get this project on its way... if anyone has actually calculated the compression ratio with stock h22 head, stock h23 block, stock h22 head gasket, and stock jdm h22 type s pistons LET ME KNOW PLEASE

 

i have type-s pistons in my h23 and they dont stick out enough to hit the head or valves. they work great.......... comp is around 11.56:1

 

how do you know that is your compression?? how did u test it? damn i dont want to have to mill the head or deck the block im gettn mad now

 

bump need more info

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23vtecEG &raquo;</TD></TR><TR><TD CLASS="quote">comp is around 11.56:1</TD></TR></TABLE>

Not if they are at .000 or .0xx out of the hole...

 

SOME GUY AT ROSKO RACING SAID H23 VTEC WITH H22 TYPE S PISTONS GETS 12:5:1 ON COMPRESSION

 

7 year bump.

 

Laughing my ****ing ***** off..literally

 

Lol he even ****ed up n said cams

 

eat me out ! im learning not a pro

 

ya eat him out.

 

LOL