The official H/F piston/rod/crank/block specs and CR thread
#52
Honda-Tech Member
Re: (Televator)
I don't think the F20B compression height is correct. If it was the pistons would stick out of the hole .019"
btw: I'm working on a F/H compression calculator. And with all this info (given it is all correct) should give us the missing piston CC numbers.
here's what I have so far.
H22A4 = -1.4
H22A = 2.3
H23A = -1.3
H23A1 = -10.4
F22A1 = -15.5
F22A4 = -15.5
F23A1 = -13.6
F23A4 = -13.6
F23A5 = -18cc
F20B = ?
btw: I'm working on a F/H compression calculator. And with all this info (given it is all correct) should give us the missing piston CC numbers.
here's what I have so far.
H22A4 = -1.4
H22A = 2.3
H23A = -1.3
H23A1 = -10.4
F22A1 = -15.5
F22A4 = -15.5
F23A1 = -13.6
F23A4 = -13.6
F23A5 = -18cc
F20B = ?
#53
did some checking with my dohc f22 tonight.
first, this engine was reman'ed in japan (didn't know that when i purchased it), but has all factory parts including bearings and pistons. bore is .010" over. i cleaned the chamber with a toothbrush and carb cleaner, but a very slight amount of carbon may still affect the results.
chamber=52cc
pistons were cc'd in the block (used indicator to find tdc, then dropped them .100" down in the bore, cc'd, subtracted .100" worth of stroke ccs)=9cc dish SUSPECT (don't trust this yet)... GONNA DOUBLE CHECK AS IT SHOULD BE 6.4, I THINK.
two more things: pistons stuck out of the deck .017" and gasket was .048" thick<-!.
Modified by RMS at 10:48 PM 12/18/2005
Modified by RMS at 11:00 PM 12/18/2005
first, this engine was reman'ed in japan (didn't know that when i purchased it), but has all factory parts including bearings and pistons. bore is .010" over. i cleaned the chamber with a toothbrush and carb cleaner, but a very slight amount of carbon may still affect the results.
chamber=52cc
pistons were cc'd in the block (used indicator to find tdc, then dropped them .100" down in the bore, cc'd, subtracted .100" worth of stroke ccs)=9cc dish SUSPECT (don't trust this yet)... GONNA DOUBLE CHECK AS IT SHOULD BE 6.4, I THINK.
two more things: pistons stuck out of the deck .017" and gasket was .048" thick<-!.
Modified by RMS at 10:48 PM 12/18/2005
Modified by RMS at 11:00 PM 12/18/2005
#54
hey pirate, i was a little afraid that some machining had been done (though it could be duff still stuck in the chamber displacing the odd cc)... did you cc the pistons and check deck hieght in the block by chance? i'd be alot more confident of this short block if it matched what someone else has seen. thanks.
#55
Honda-Tech Member
Re: (RMS)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RMS »</TD></TR><TR><TD CLASS="quote">hey pirate, i was a little afraid that some machining had been done (though it could be duff still stuck in the chamber displacing the odd cc)... did you cc the pistons and check deck hieght in the block by chance? i'd be alot more confident of this short block if it matched what someone else has seen. thanks.</TD></TR></TABLE>
I think pirate just got the F22B head, not the whole engine
I think pirate just got the F22B head, not the whole engine
#56
Honda-Tech Member
Re: (H23 Power)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23 Power »</TD></TR><TR><TD CLASS="quote">I don't think the F20B compression height is correct. If it was the pistons would stick out of the hole .019"
</TD></TR></TABLE>
I messaged Innovation about this a week or so ago.. 20 thou is a lot to be out of the hole
</TD></TR></TABLE>
I messaged Innovation about this a week or so ago.. 20 thou is a lot to be out of the hole
#57
Honda-Tech Member
Re: (WhiteSol)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteSol »</TD></TR><TR><TD CLASS="quote">
I messaged Innovation about this a week or so ago.. 20 thou is a lot to be out of the hole </TD></TR></TABLE>
sure is.
I messaged Innovation about this a week or so ago.. 20 thou is a lot to be out of the hole </TD></TR></TABLE>
sure is.
#58
Honda-Tech Member
Re: (H23 Power)
here's the compression ratio calculator so far...
http://www.bsperformance.com/compcalc/compcalc.htm
let me know what else you want to see. Its easier to add new stuff in groups than 1 thing at a time.
http://www.bsperformance.com/compcalc/compcalc.htm
let me know what else you want to see. Its easier to add new stuff in groups than 1 thing at a time.
#59
Honda-Tech Member
Re: (H23 Power)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23 Power »</TD></TR><TR><TD CLASS="quote">here's the compression ratio calculator so far...
http://www.bsperformance.com/compcalc/compcalc.htm
let me know what else you want to see. Its easier to add new stuff in groups than
1 thing at a time. </TD></TR></TABLE>
You might want to add an adjustable deck height for those that wish to use deck plates etc... just a thought. Looks good though!
I use Zealautowerks calculator among others.
http://www.bsperformance.com/compcalc/compcalc.htm
let me know what else you want to see. Its easier to add new stuff in groups than
1 thing at a time. </TD></TR></TABLE>
You might want to add an adjustable deck height for those that wish to use deck plates etc... just a thought. Looks good though!
I use Zealautowerks calculator among others.
#60
Honda-Tech Member
Re: (WhiteSol)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WhiteSol »</TD></TR><TR><TD CLASS="quote">
You might want to add an adjustable deck height for those that wish to use deck plates etc... just a thought. Looks good though!
I use Zealautowerks calculator among others.
</TD></TR></TABLE>
you can just change the piston to deck height if that is the case.
You might want to add an adjustable deck height for those that wish to use deck plates etc... just a thought. Looks good though!
I use Zealautowerks calculator among others.
</TD></TR></TABLE>
you can just change the piston to deck height if that is the case.
#61
Re: The official H/F piston/rod/crank/block specs and CR thread (Innovation)
Hi,
Can anyone please post specs on EuDM H22A5 engine (if anyone has them at all) or maybe a link on where I could fing them. The main thing I'm concerned about is the main journal diameter. I was thinking about putting an H23 crank with rods in, however, I don't know if my main journal diameter is 50 or 55mm.
Thanks
Can anyone please post specs on EuDM H22A5 engine (if anyone has them at all) or maybe a link on where I could fing them. The main thing I'm concerned about is the main journal diameter. I was thinking about putting an H23 crank with rods in, however, I don't know if my main journal diameter is 50 or 55mm.
Thanks
#63
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Re: The official H/F piston/rod/crank/block specs and CR thread (pentaq)
While we are updateing this stuff, I would suggest adding info on the pressed vs. floating pins: https://honda-tech.com/zerothread?id=900446
#64
Re: The official H/F piston/rod/crank/block specs and CR thread (pentaq)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pentaq »</TD></TR><TR><TD CLASS="quote">what year is the car? </TD></TR></TABLE>
It's 98 VTEC VTi model (and its actually OBD1 if it matters)
It's 98 VTEC VTi model (and its actually OBD1 if it matters)
#65
moderator emeritus
Re: (Innovation)
i was wondering what the unit of measurement is for the following:
Deck Height
H22A4 Block = 8.643
Block Bore
H22A4 Block = 87mm/3.425
Rod Length
H22A4 = 5.633
Compression Height
H22A4 = 1.221
I'm sorry if it seems blatantly obvious to some...maybe im just having a brain fart.
Deck Height
H22A4 Block = 8.643
Block Bore
H22A4 Block = 87mm/3.425
Rod Length
H22A4 = 5.633
Compression Height
H22A4 = 1.221
I'm sorry if it seems blatantly obvious to some...maybe im just having a brain fart.
#68
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Re: The official H/F piston/rod/crank/block specs and CR thread (Innovation)
Can I use rods from a 98 prelude in my 95 prelude standard size know one seems to know for sure.
#72
Re: (92hondalude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92hondalude »</TD></TR><TR><TD CLASS="quote">so all h22 from 92-97 have 50mm mains correct?</TD></TR></TABLE>
did you not read the damn thread dude? yes
did you not read the damn thread dude? yes
#73
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Re: (H23 Power)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23 Power »</TD></TR><TR><TD CLASS="quote">I don't think the F20B compression height is correct. If it was the pistons would stick out of the hole .019"
btw: I'm working on a F/H compression calculator. And with all this info (given it is all correct) should give us the missing piston CC numbers.
here's what I have so far.
H22A4 = -1.4
H22A = 2.3
H23A = -1.3
H23A1 = -10.4
F22A1 = -15.5
F22A4 = -15.5
F23A1 = -13.6
F23A4 = -13.6
F23A5 = -18cc
F20B = ?</TD></TR></TABLE>
Are these verified yet? I used the zealworks calculator and their numbers were a little different. I'm looking for the jdm h22a specifically.
btw: I'm working on a F/H compression calculator. And with all this info (given it is all correct) should give us the missing piston CC numbers.
here's what I have so far.
H22A4 = -1.4
H22A = 2.3
H23A = -1.3
H23A1 = -10.4
F22A1 = -15.5
F22A4 = -15.5
F23A1 = -13.6
F23A4 = -13.6
F23A5 = -18cc
F20B = ?</TD></TR></TABLE>
Are these verified yet? I used the zealworks calculator and their numbers were a little different. I'm looking for the jdm h22a specifically.
#74
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Re: (Rosko)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rosko »</TD></TR><TR><TD CLASS="quote">
Are these verified yet? I used the zealworks calculator and their numbers were a little different. I'm looking for the jdm h22a specifically.</TD></TR></TABLE>
the zeal auto works one is not right, any info they didn't have they just put 0 in for.. obviously their calculator is a work in progress.
Are these verified yet? I used the zealworks calculator and their numbers were a little different. I'm looking for the jdm h22a specifically.</TD></TR></TABLE>
the zeal auto works one is not right, any info they didn't have they just put 0 in for.. obviously their calculator is a work in progress.
#75
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Re: (prelittlelude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prelittlelude »</TD></TR><TR><TD CLASS="quote">
the zeal auto works one is not right, any info they didn't have they just put 0 in for.. obviously their calculator is a work in progress.</TD></TR></TABLE>.
yeah it seemed a little sketchy, came out to around 13:1 compression but some of that could be my fault as I havent cc'd my head yet, so I was guesstimating
the zeal auto works one is not right, any info they didn't have they just put 0 in for.. obviously their calculator is a work in progress.</TD></TR></TABLE>.
yeah it seemed a little sketchy, came out to around 13:1 compression but some of that could be my fault as I havent cc'd my head yet, so I was guesstimating